Database Users

[Q] Some help with creating an Update.zip for my A7 please

I'd appreciate it if someone could give me some assistance. Basically the situation is that I wanted to get VPN working on the A7 which required tun.ko. I cross compiled the kernel and managed to get a tun.ko file and I added it to my device. Installing the module did not work, so I left it.
At some point my A7 shut off, and now it will not boot, it hangs at the ANDROID screen, before getting to the HC animation (dexmod 1.42). I am assuming at this point that my tun.ko is the issue so I created a patch update to remove the modules I had added to see if that would work.
Note: This patch is exactly the same as the ElocityMod 1.4.2 ad-hoc patch, I just changed the script actions and re-bundled.
The script only does this:
delete_recursive SYSTEM:lib/modules
delete SYSTEM:lib/tun.ko
I created the /system/lib/modules dir, so I know it exists, as does the /system/lib/tun.ko. When I try to run the update script I get the following error:
Installing Update
close from_child
E:Error in /sdcard/update.zip
(Status 6[1536])
Installation aborted.
I am trying not to flash back to the 1.4.2 as I have some investment and stupidly did not back-up before I started this venture. Any help would be appreciated.
Brad
As a side note, according to the /proc/config.gz on the tablet (kernel config) the TUN/TAP is compiled into the kernel, but not compiled as a module. For this reason I doubt VPN will work unless the apps can recognize the TUN device instead of failing because the module does not exist.

with specifics to an update script, the script desired should be as follows
Code:
run_program("/sbin/busybox", "mount", "-orw,remount","/system");
delete("/system/lib/tun.ko");
run_program("/sbin/busybox", "mount", "-oro,remount","/system");
you will need to remember to sign your update.zip after creation if you're not familiar with the process. searching on xda should turn up results for 'sign update.zip'.
i'd list the specific files and not do recursive deleting. though if introducing a kernel module caused you problems, i don't think it was merely copying/removing that had an effect, but wouldn't you have had to either issue an 'insmod' command manually or you added a call to that module using insmod added to the init.rc or a bash script. you need to remove that reference too if you did.
if your 'investment' is related to your /data folder (with your stored apps and app settings), you can use my cwm fakeflash recovery to backup and restore your /data contents (installed apps, and system settings) after a factory reset and reloading dexter's rom (using factory recovery).
alternative solutions; maybe if you were doing these kind of experiments you MIGHT have left the usb device setting on (for adb connectivity). if so, try to adb shell into the device to correct your problem by hand; type adb devices from a command prompt for fun to see if the device still lists (it did for me when softbricked once).
domito said:
I'd appreciate it if someone could give me some assistance. Basically the situation is that I wanted to get VPN working on the A7 which required tun.ko. I cross compiled the kernel and managed to get a tun.ko file and I added it to my device. Installing the module did not work, so I left it.
At some point my A7 shut off, and now it will not boot, it hangs at the ANDROID screen, before getting to the HC animation (dexmod 1.42). I am assuming at this point that my tun.ko is the issue so I created a patch update to remove the modules I had added to see if that would work.
Note: This patch is exactly the same as the ElocityMod 1.4.2 ad-hoc patch, I just changed the script actions and re-bundled.
The script only does this:
delete_recursive SYSTEM:lib/modules
delete SYSTEM:lib/tun.ko
I created the /system/lib/modules dir, so I know it exists, as does the /system/lib/tun.ko. When I try to run the update script I get the following error:
Installing Update
close from_child
E:Error in /sdcard/update.zip
(Status 6[1536])
Installation aborted.
I am trying not to flash back to the 1.4.2 as I have some investment and stupidly did not back-up before I started this venture. Any help would be appreciated.
Brad
As a side note, according to the /proc/config.gz on the tablet (kernel config) the TUN/TAP is compiled into the kernel, but not compiled as a module. For this reason I doubt VPN will work unless the apps can recognize the TUN device instead of failing because the module does not exist.
Click to expand...
Click to collapse

..alternatively alternatively i also did a update.zip of the latest factory rom that may assist with your issue, if the above solutions do not work. assuming your 'investment' isn't in the /system folder, it can format your /system folder and reinstall the /system files from the factory firmware with all correct permissions. a little examination of my update.zip could be used as a template for creating a similar one for dexter's rom, for these particular times when you'd like to re-do your /system folder and leave the rest of your partitions and data intact.
locatable, roundabout, from my twitter. same name as here.
oh. you could just write a script to execute a bash script (file.sh) thats got simple copy commands to copy your 'investment' to sdcard (/sdcard in recovery). that might be the simplest non creative approach that would allow you to continue on with a normal factory reset and reload of dexter's rom.
using bash scripts might also aid you in doing what you want without having to know or experiment with proper scripting syntax.
..oh, AND you could just edit dexter's rom update.zip to only install the system.img, and remove the rest of the files for installation, and DON"T do a factory reset..
that could help with restoring your system filesystem while leaving the rest of your data intact. didn't occur until this morning, that might be you EASIEST of the multiple suggestions listed.

Thanks for the response!
bestialbub said:
with specifics to an update script, the script desired should be as follows
Code:
run_program("/sbin/busybox", "mount", "-orw,remount","/system");
delete("/system/lib/tun.ko");
run_program("/sbin/busybox", "mount", "-oro,remount","/system");
Click to expand...
Click to collapse
This was actually what I did for my first try, with the same result.
bestialbub said:
you will need to remember to sign your update.zip after creation if you're not familiar with the process. searching on xda should turn up results for 'sign update.zip'.
Click to expand...
Click to collapse
I did not do this, I was not sure I had to.
bestialbub said:
i'd list the specific files and not do recursive deleting. though if introducing a kernel module caused you problems, i don't think it was merely copying/removing that had an effect, but wouldn't you have had to either issue an 'insmod' command manually or you added a call to that module using insmod added to the init.rc or a bash script. you need to remove that reference too if you did.
Click to expand...
Click to collapse
I did insmod it as well as modprobe, it gave me an error which was likely because (as I found later) the TUN is compiled into the kernel, which means a module could not possibly load.
bestialbub said:
if your 'investment' is related to your /data folder (with your stored apps and app settings), you can use my cwm fakeflash recovery to backup and restore your /data contents (installed apps, and system settings) after a factory reset and reloading dexter's rom (using factory recovery).
Click to expand...
Click to collapse
I'll have to take a look at that, I was no aware it existed.
bestialbub said:
alternative solutions; maybe if you were doing these kind of experiments you MIGHT have left the usb device setting on (for adb connectivity). if so, try to adb shell into the device to correct your problem by hand; type adb devices from a command prompt for fun to see if the device still lists (it did for me when softbricked once).
Click to expand...
Click to collapse
The issue with the A7 is that it's got USB host only which means I cannot connect it to my PC and adb it. This was a known issue before I bought the A7.

bestialbub said:
..alternatively alternatively i also did a update.zip of the latest factory rom that may assist with your issue, if the above solutions do not work. assuming your 'investment' isn't in the /system folder, it can format your /system folder and reinstall the /system files from the factory firmware with all correct permissions. a little examination of my update.zip could be used as a template for creating a similar one for dexter's rom, for these particular times when you'd like to re-do your /system folder and leave the rest of your partitions and data intact.
locatable, roundabout, from my twitter. same name as here.
oh. you could just write a script to execute a bash script (file.sh) thats got simple copy commands to copy your 'investment' to sdcard (/sdcard in recovery). that might be the simplest non creative approach that would allow you to continue on with a normal factory reset and reload of dexter's rom.
using bash scripts might also aid you in doing what you want without having to know or experiment with proper scripting syntax.
..oh, AND you could just edit dexter's rom update.zip to only install the system.img, and remove the rest of the files for installation, and DON"T do a factory reset..
that could help with restoring your system filesystem while leaving the rest of your data intact. didn't occur until this morning, that might be you EASIEST of the multiple suggestions listed.
Click to expand...
Click to collapse
In the end I went more heavy handed than all that and it worked out fine. I did this before I saw your response otherwise I would have tried to finesse it some more just for the fun of it.
I re-flashed with dexmod 1.41 but I did not reset or wipe anything first. Applying this over top got me booted again with all my apps. 1 quick 1.42 update (and annoying root FB upgrade) and I am back to pre-fail conditions. I backed up my stuff too.
Thanks again for all the useful tips. This type of event has happened a few times and my gut says I am getting some corruption on the NVRAM or something. Only time will tell.

adb connectivity works fine, the solution is buried in one of 5stronginos threads, maybe the cwm recovery one. google for USB_OTG.APK i think, its posted on xda w a download link.
..i also prepackage it in my firmware repack.. findable from my twitter.
Sent from my X10i using Tapatalk

bestialbub said:
adb connectivity works fine, the solution is buried in one of 5stronginos threads, maybe the cwm recovery one. google for USB_OTG.APK i think, its posted on xda w a download link.
..i also prepackage it in my firmware repack.. findable from my twitter.
Sent from my X10i using Tapatalk
Click to expand...
Click to collapse
I found this one, which looks right.
http://forum.xda-developers.com/showpost.php?p=12813894&postcount=36
I'll give it a shot. Thanks for the info.

Screensave while in landscape mode

If you use applications in landscape mode, you may have noticed this already.
When your Nook sleeps or is sent to sleep your normal portrait screensaver appears rotated, squished and with black borders.
Clearly, the Nook developers never anticipated that people would be using landscape mode.
I have a mod to /system/framework/services.jar to fix this.
If the graphic is either 600 x 800 or 800 x 600 it will put it in the orientation that fits.
If the graphic is 800 x 800 it will put it in the current orientation, centered at a scale of 1:1.
Since a lot of people seem to use a moded system.jar already it would have to be integrated in.
Is there interest in this?

I am very interested!!
Can u share your mod?

Well, with all the modded services.jar and various updates maybe posting the injected smali code?
Or is that too difficult/annoying?

sounds great! but still I would prefer no-screen-saver mod. i.e. you can see you launcher widgets (calendar, task, time, battery) all the time. These s.s. pictures are quite antiproductive.

Renate NST . we are waiting !

Ok, here goes. My apologies if this is complicated.
I didn't want to distribute B&N code or presume what mods where already in your services.jar
Code:
adb pull /system/framework/services.jar
apktool d services.jar \Services
Edit \Services\smali\com\android\server\PowerManagerService.smali
parta.txt replaces 3 lines in the original that have to do with parse / move / setImageURI
Delete those lines and insert the file where the .line statements match.
You can leave both the comments in parta.txt and the .line statements there.
partb.txt gets inserted at the end of the file.
Code:
apktool b \Services services.jar
adb push services.jar /system/framework/
You probably want to clear the cache and reboot at that point.
Note: If you are using the standard slide unlock, the image placement code for that is in android.policy.jar
That defaults to portrait orientation. It is not affected by this mod.
Please tell me if this works for you.

This is a nice idea. However, when you use book cover as screensaver via Cool Reader most of them aren't 800x600 images. The B&N default behavior is to resize to fit the screen (keep aspect ratio), but with your mod the picture appears at 1:1 scale (normally cropped). Would this be an easy fix?

marspeople said:
Would this be an easy fix?
Click to expand...
Click to collapse
Tomorrow.

It's tomorrow.
I hope that I covered all the cases because more variants will require user configuration somewhere.
If the image is 600 x 800, 800 x 600 or an aspect ratio of 3:4 or 4:3 it will fit exactly.
If the image has another aspect ratio it will fit inside with side strips in white.
If the image is exactly square it will use the current orientation and overfill the screen.
In all cases the aspect ratio will be preserved and at least one axis will fit exactly.
When the lock screen with the slider pops up the image will not be consistent.
This is because B&N handled the screensaver image there separately.
I will be releasing a mod for android.policy.jar to fix that soon.
(Or you could switch to another screen locker.)
Install procedure same as above.

Ok, here's the one that fixes the lock screen too.
parta.txt and partb.txt are the same as they were.
partc.txt and partd.txt are for LockScreen inside android.policy.jar
Code:
adb pull /system/framework/android.policy.jar
apktool d android.policy.jar \Policy
Edit \Policy\smali\com\android\internal\policy\impl\LockScreen.smali
partc.txt replaces the entire updateBackgroundImage method.
partd.txt gets inserted at the end of the file.
Code:
apktool b \Policy android.policy.jar
adb push android.policy.jar /system/framework/
As always, be careful and backup.
(This is also in the readme file.)
Warning: This is only for Nook 1.12 and older, not for Nook 1.2 and newer.

Oh, and if you're tired of dragging to unlock your NOOK™,
place the extracted files in /res/drawable-mdpi/ inside /system/framework/framework-res.apk
Just to be clear, this doesn't change the manner of unlocking, just the look.
(The folks at B&N made the graphics shorter by making the top 30 pixels transparent.
That was an unnecessary hack, as long as all four graphics are the same height it works fine.)

signing / alternative to adb push
Renate,
thank you for the mods. The rotated screensaver has been irritating me for some time ;-) And I intend to put my email instead of the "slide to unlock" text..
Just 2 questions, before I do so:
1) do I need to sign the modified .jar/.apk files?
2) As I do not have ADB installed, I intend to change the files from a command line over ssh (i.e. copy, chown, chmod). My understanding is that this should be equivalend to adb push. Is this so?
Cheers

ajislav said:
1) do I need to sign the modified .jar/.apk files?
Click to expand...
Click to collapse
"Badges? Badges? We don't need no stinkin' badges."
No, if you copy in anything directly you bypass all the signing stuff.
How you get the files over is however you like.

Bootloop
Hi,
I tried to do both changes (screensaver, slider) but since the recompilation of services.jar and android.policy.jar was giving me errors (see below), I decided to go with replacing framework-res.apk
what I did was
ssh into my nook
Code:
cd /system/framework/
mount -o remount,rw /dev/block/mmcblk0p5 /system
#copy the new framework into target dir
cp /sdcard/download/framework-res.apk ./framework-res.apk.new
#fix permissions
chmod 644 framework-res.apk.new
#make a backup
cp framework-res.apk framework-res.apk.old
#replace the file
cp framework-res.apk.new framework-res.apk
now at that moment I got the bootloop screen.. however ssh was still working, so I run the following line to restore the framework:
Code:
cp framework-res.apk.old framework-res.apk
and rebooted.. I am getting bootloops ever since..
I can boot to CWM. so I tried both what I should have done in the first place, i.e. replace the file in CWM
I tried this
http://forum.xda-developers.com/showpost.php?p=24728342&postcount=22
(fixes permissions)
and this
http://forum.xda-developers.com/showpost.php?p=23607664&postcount=11
(restores the old framework and fixes permissions)
but none seem to work... still the same bootloop (nook by B&N and 5 dots going from Left to Right)..
any ideas? I'd rather not go all the way to factory restore
p.s. I also tried wiping cache and dalvik-cache in CWM.. could this cause any problems?
p.p.s. the errors I got with recompiling the jars are:
Code:
>apktool b .\Services2 services.jar
I: Checking whether sources has changed...
W: Could not find resources
I: Building apk file...
is the "Could not find resources" normal?

Let's take the easy one first.
Compiling the jars will return "No resources found", because they are just jars.
You should always check to make sure that the output is about the same size as the original.
It may be a bit bigger or smaller depending on the vagaries of compression.
Now the toughie.
Hot-swapping jars is a bit risky.
In the best of all worlds, you'd like to swap them when they are not being used.
Swapping framework-res.apk could make it crash when something can't find a resource,
but it's not code and generally if you leave the Nook sitting it won't try to access anything.
If all you did was replace one file and now you replaced it back it should be working.
I don't know how you are getting a ssh into the Nook.
I've got no port 22 or 23 open.

Hi Renate,
Compiling the jars will return "No resources found", because they are just jars.
You should always check to make sure that the output is about the same size as the original.
It may be a bit bigger or smaller depending on the vagaries of compression.
Click to expand...
Click to collapse
I did this, of course. The files are generally sightly smaller, in the case of framework-res.apk the change is relatively big: from 2,897,726 to 2,381,970 (but I am not worried about this as I get a similar size decrease even during simple decompile/recompile)
Swapping framework-res.apk could make it crash when something can't find a resource,
but it's not code and generally if you leave the Nook sitting it won't try to access anything.
If all you did was replace one file and now you replaced it back it should be working.
Click to expand...
Click to collapse
I know, and I totally agree with you!
My conclusion is that something got corrupted..
I tried removing the apk.old and apk.new files via CWM (to make sure they are not in the way)
I also tried running e2fsck -p /dev/block/mmcblk0p5 via CMW (from http://forum.xda-developers.com/showpost.php?p=21915065&postcount=59 )
.. but still the same bootloop.
Is there any way to see some logs of the failed boots?
Since I did not make a backup just before doing this change (and I know you had adviced to do so ), the only thing which I can think of now is
a) create a backup with noogie
b) mount the image and check what is actually in /system
unfortunately, I do not have access to linux so this would be kind of pain (my old laptop with WinXPSP3 is the main reason, why I dont have ADB..)
And I am not sure if this is not more complicated than reinstalling everything from scratch..
Thanks for your help, I'll probably give it a day's rest and then do the factory reset..
I don't know how you are getting a ssh into the Nook.
I've got no port 22 or 23 open.
Click to expand...
Click to collapse
I have droidSSHd installed and am able to connect easily with Putty.

Have you already tried to look at dmesg? logcat?

I am not sure how to do this (dmesg, logcat)
I was probably unclear about the ssh - I WAS able to ssh in when Nook was booting normally. Now I cannot.
Is there any way to do this from CWM? (I mean dmesg, logcat)

I was wondering how you were in a boot loop and managed to ssh.
Code:
# dmesg
.....
# logcat
.....
If you don't have a shell this is not going to do you any good.

I used noogie to get an img which I then mounted (using OSFMount and Ext2IFS) under windows..
looking at the /system partition, I see that
- my .old and .new files are gone
- the correct framework-res.apk is in place
i.e. the CWM scripts I have run did their job correctly.. so they have effectively undone any changes that I have made.. so the nook should boot up without any problems
weird....
so I guess my only options are
- restore my pre-root backup
- factory reset

(OUTDATED) Nook HD+ root, modified 2/15/13 RIP

THIS METHOD IS NO LONGER WORKS as of update version 2.0.5 and higher.
Please visit this thread instead for the current rooting method.
Posting in this thread will get you nowhere, let it RIP.
ANNOUNCEMENT:
If you have a new Nook HD/HD+ and want to root and get the GAPPS running, you should follow the guide at the All-in-One thread instead. That said, I won't copy all the information here to there, so you should continue to read on.
Let me start by saying that I didn't come up with the working root method. The original root instruction came from verygreen in this thread. And I am not a developer, I merely have a few linux background and even less so in the Android. I worked on this on my spare time by myself.
I merely take what was working, but unusable to make it usable. I found something that he is missed. This may actually be working on Nook HD (non-plus) also, but since I don't own one I can't say that it will.
Disclaimer:
If something gone wrong, it's all your fault. I take ZERO responsibility for what happen to your device, your life, your wife/husband, your kids, your unborn child and etc. You get the idea.
Background:
When I found out the root doesn't actually work past a reboot, I start looking what actually cause the Nook to be pissed and factory reset itself. Well, it seem that the /system and anything in there is basically coming from a /dev/block/mmcblk0p8 And if something got change, Nook get pissed and do a FULL FACTORY RESET(I'll explain in a moment). Well, at least I start investigated under that idea.
What I found:
What I found, or at least what I think I found is that, probably just adding file, or increase in the size(maybe there is a threshold for this), will cause it to do a full factory reset. What I also found is that there is a $PATH for /system/sbin but not pointing to anywhere. So I come up with the idea of making another ext4 file system in a file and loop mount it to /system/sbin I guess that work(very well). What I also found is that, there are two kind of factory resets. The one that you perform yourself, which is actually not a full factory reset and the one that Nook get pissed and do the full one.
A factory reset that you perform yourself, whether from the GUI or button combination will basically clean the partition /data while a full blown one will basically restore other partition such as /system
What is included:
basically a zip file, inside that zip file are 6 files.
boot_complete_hook.sh.bak this is basically a modified version of verygreen's
busybox & su are basically from his thread
superuser.apk well I found this one floating around and seem like a good idea to stick it in there (not even sure if it gonna work w/ Nook)
makeroot.bat this is basically what do most of the work. It's base on verygreen original rooting instruction.
sbin_mount This is basically an ext4 file system which have su and another version of busybox all setup nice and tidy for you all. This version of busybox is 1.20.2r2 which I grabbed from here.
Prerequisite:
ADB, it's your responsibility to have adb up and running, meaning not just have it install, but it can see your nook also.
leapinlar wrote a post to help you getting ADB to work here.
Now to get root:
all you have to do is unzip it and run makeroot.bat (obviously you run this in windows command prompt). Yub that's all. The batch file will do the rest, including reboot the nook and wait for it to reboot and stuff. Won't make a coffee for you though.
The manual and hard way:
well, I will only explain this in a summarize way. Basically this start with verygreen rooting method. It basically take advantage of the exploit and run /data/boot_complete_hook.sh which you adb push yourself(with correct permission) with root privilege. What you can run in there is basically up to your creativity. So obviously in this case, you mount the sbin_mount as an ext4 filesystem in the /system/sbin You can make this file yourself if you want to, in linux using dd and mkfs command. Basically using dd to create a file volume to the size you want and mkfs to format it to ext4. Mount it and start uploading stuff you want in there. You will have to correct all the file permission as well. Since all of this will be mounted to /system/sbin you should be aware what you gonna put in there. I guess I could make this thing 100MB, but for this specific purpose 10MB is enough. I my case, just the su and busybox and the symbolic links for the busybox. I'm doing this for the long term. I'm too lazy to point to busybox everytime I wanna do something.
What to do afterward:
Now that you have root, you can Enable Unknown Source to allow you to install app from within the device and install GAPPS. Follow the two guides below if you interested.
Enable Unknown Source: Again, I make an easy little tool for you here.
GAPPS: here.
Did I missed something:
Well, as I said I'm no coder so if I didn't do a clean job, you can refine it. If I didn't document or give proper credit, then I guess I missed that. Sorry about that, again I'm no coder and never done this. And finally:
If this thing work for you, feel free to hit that "THANKS" button. I spent many hours trying to come up with this solution.
FAQ:
Q: My so and so application when attempting to have root access get freeze up, or superuser doesn't work?
A: Well, I'm not sure if this is dued to how the Nook side-loading work or not, but it seem for some reason superuser won't start by itself. So you have to start it manually the first time.
Q: I type in "adb root" and I can't get in as root, it doesn't work?
A: yes it does, it's just not working with adb root. You can get in via "adb shell" once you get in, type in "su" and you can see that you now should have root access.

Thank you so much! This works perfectly. Survives reboot.

here's the Linux version.
Thanks someone0 for getting this started.
Haven't fully tested the linux version, but it loads and starts up, so should work.
extract, and open up terminal and navigate to the dir you extracted to, and type
./makeroot.sh and then enter.

This sounds like a good idea initially.
It is true that the B&N does not just check for /system/xbin/su directly like they did in the past.
This time they check for something else and I just had no time to look into it more deeply to find out what is it they are actually checking for. I plan to figure this out on Friday when I am back home.
Also wanted to tell you that having Linux background is a great thing when tinkering with Android (at a low level, anyway). I don't have much Android background to speak of as well.

This works really well, and thanks to Someone (and mad props too) for getting persistent root working on this.
I may be being very naive, but my suspicion on the reboot is around the manifest file that's present at root.
It seems to be generated by the boot process and it might provide a quick and dirty list of what's permitted on the device to check. With persistent root, lots of investigation becomes a lot less painful. I expect that by end of day we'll have install unsigned running.
Early in my experimenting with the HD+, I noted:
- some versions of the Google Services Framework can be installed via adb
- when I launched the native calendar app after installing gsf, it wanted to sync to a google account, and was able to add the google account
- one version of the Play store installed and launched as far as throwing the 'you must accept the terms of service' before crashing

What BN most likely does is calculating the hash value (or digest, if you prefer) of certain system files that they think shouldn't be tampered with, then during reboot, the values of these files must match, or they will do a factory reset.
The key point is to find out where they do these checks and fool the check.
This sound simple but it depends on how they implement it. If they use binary decisions (like if the hash_value == calculated), then it is easy to get around. If not (e.g. using white box algorithm to hide keys), then it get more complicated.

excellent and very elegant solution. Kudos!

I'm heading out to work, and if you think your theory is right, try poking around with it. Now that your have root, you can try to dd those bootloading partitions out to user area and upload them out to PC and inspect them.
looking at the vold.fstab
Code:
xloader -> /dev/block/mmcblk0p1
bootloader -> /dev/block/mmcblk0p2
recovery -> /dev/block/mmcblk0p3
boot -> /dev/block/mmcblk0p4
rom -> /dev/block/mmcblk0p5
bootdata -> /dev/block/mmcblk0p6
factory -> /dev/block/mmcblk0p7
system -> /dev/block/mmcblk0p8
cache -> /dev/block/mmcblk0p9
userdata -> /dev/block/mmcblk0p10
Be extra careful when touching those partition if you not sure, don't touch them. But making a block copy of them and taking them out should be relatively easy and safe. Obviously you gonna need a Linux box to do this. I setup a VM on one of my PC last night because I need to get a ext4 partition and put all the goodies in there.

krylon360 said:
here's the Linux version.
Thanks someone0 for getting this started.
Haven't fully tested the linux version, but it loads and starts up, so should work.
extract, and open up terminal and navigate to the dir you extracted to, and type
./makeroot.sh and then enter.
Click to expand...
Click to collapse
Just wonder why do use a zip file for the linux version? Wouldn't this kinda messup the permission when compress/uncompress? meaning, makeroot.sh may not have the proper permission when unzip. Please double check.

someone0 said:
Just wonder why do use a zip file for the linux version? Wouldn't this kinda messup the permission when compress/uncompress? meaning, makeroot.sh may not have the proper permission when unzip. Please double check.
Click to expand...
Click to collapse
works just fine.
I chmod a+x'd the script before putting it into the zip.
heh, yeah, it works. Forgot I had my touchpad pluged in and it rebooted it....
whoops.

thanks for posting the location of the /recovery partition. I want to put a copy of htat on ice to prevent BN from undoing any of my work in a future update - I may want some of the fixes they have, but I want to be able to roll them back if needed.

Someone0 are you around can you pm me, Your root works, I installed nook color tools ver .02 in system/app folder and was able to see it in my sideloaded launcher, was able to uncheck/check install non market apps which sets the setting for US to be able to install .apk files from the nook itself, ONLY ISSUE is since I put that file in the system/app folder and the nook didnt like it I got stuck in a bootloop and get to start this process all over again! (nook resetted to ground zero)
maybe we temporary can leave it there get us the permission to install non market apps then remove the file and we will be ok or maybe stuck in another bootloop.
---------- Post added at 09:20 PM ---------- Previous post was at 08:52 PM ----------
GOT IT WORKING NOW:
1. Once rooted, get a file manager with root support and enable read/write permission to /system
2. temporary copy nook tools ver .02 .apk to the system/app folder
3. have a sideloaded launcher and check the app drawer youll see nook tools, run it, first screen uncheck and check the install non market apps box couple of times make sure its checked afterwards
4. have a test .apk to run the BN installer on and see you can now install .apks from the NOOK HD and HD+
5. remove the nook tools.apk file from the system/app folder and quit your file explorer which should reset everything for the system folder back to the way it orginally is!
6. reboot, if you reboot successfully with no boot loop 8 times, your GOLDEN FOR NOW! once again load up a file manager go select an .apk file and see you can now install it! Next step is trying to get amazon market working! then google somehow, but for google you need files in system/app folder permanently!
7. YOU CAN NOW SUCCESSFULLY DOWNLOAD .APK FILES through web, email, any other app and install through the NOOK HD or HD+ BN installer for .apk files. Watch what you install, if it gets put into /system or /system/app folder DREADED BOOT LOOP which resets everything! AMAZON MARKET WORKS!!!! and apps from there install fine to the BUILT IN MEMORY.
** Hopefully amazon market dont install stuff to the system/app folder and if it does hopefully you do not get the dreaded boot loops where you got to start this whole process over again so be forwarned!!! you will loose all data on NOOK HD and HD+ if u get stuck in the bootloops! BACKUP STUFF before messing with root and this kind of thing! DEVELOPMENT!

Aside from moving the actual apk to /system/app/ temporary (since you only do it once), putting a symbolic link there may work also without creating a reset loop. But can't you just side load the apk and run it in other folder?

someone0 said:
Aside from moving the actual apk to /system/app/ temporary (since you only do it once), putting a symbolic link there may work also without creating a reset loop. But can't you just side load the apk and run it in other folder?
Click to expand...
Click to collapse
when you sidelaod it OR install or have it installed to another folder or ran from another folder it cant modify the setting to allow non market apps to install!!
has to be in the /system/app folder THEN RAN from app drawer then you can set the setting uncheck and check box quit program and for now YOU HAVE to remove the .apk from the system/app folder and then you can reboot and the setting sticks! I GOT AMAZON MARKET INSTALLED right now installing apps! NOW WE GOT A KINDLE ladys and gentleman!

Amazon apk installs in internal memory. Apps downloaded from Amazon get installed in internal memory. You can then move them to SD card or leave them in internal memory. System apps are provided in the ROMs by the developers or vendors. ALWAYS back up before making system changes.. Now rooted - use Titanium Backup. System/app should be static throughout ROM lifecycle unless modified by user.

skyhawk21 said:
7. YOU CAN NOW SUCCESSFULLY DOWNLOAD .APK FILES through web, email, any other app and install through the NOOK HD or HD+ BN installer for .apk files. Watch what you install, if it gets put into /system or /system/app folder DREADED BOOT LOOP which resets everything! AMAZON MARKET WORKS!!!! and apps from there install fine to the BUILT IN MEMORY.
** Hopefully amazon market dont install stuff to the system/app folder and if it does hopefully you do not get the dreaded boot loops where you got to start this whole process over again so be forwarned!!! you will loose all data on NOOK HD and HD+ if u get stuck in the bootloops! BACKUP STUFF before messing with root and this kind of thing! DEVELOPMENT!
Click to expand...
Click to collapse
This is why I put the /system back to ro, at least that is what I think I did.

Amazon Store working on ROOTED Nook HD
Proof of Concept:
http://youtu.be/wCyd730L74Y

skyhawk21 said:
Proof of Concept:
http://youtu.be/wCyd730L74Y
Click to expand...
Click to collapse
LOL, your internet is slow. Could have cut the video time by 1/2 if not 2/3 if you switch to faster ISP.

skyhawk21 said:
Someone0 are you around can you pm me, Your root works, I installed nook color tools ver .02 in system/app folder
Click to expand...
Click to collapse
What exactly did you install? I cannot find "nook color tools" in Google Play or on APKTOP. Thanks for your hard work!
NEVERMIND! I found the thread that has the link for the app: http://forum.xda-developers.com/showthread.php?t=868366 Thanks again.

does this root method work on Nook HD+2.0.2?
if not how I can downgrade to 2.0.0?

those invisible menu options

There is an interesting discussion on the Russian forum the-ebook.org (paste this link into Google and select the translation; item is on page 2) regarding those annoying invisible menu options in many apps. Although the translation is a little rough around the edges, the gist seems to be that the default text and background colors for the app menus are not exactly what the e-ink display has in mind, often resulting in light or near-white text on a white background--hence, invisible text.
The "solution" used is to change some background color settings in framework-res.apk. I have no idea what the outcome looks like but it seems like a really good idea, although beyond my abilities, and the example used is 1.10 firmware. I'm using 1.21. Any attempt I have made to modify apk files has always failed
Does anyone have a fool-proof set of steps for doing this?

I remember reading about what you're talking about somewhere on the forums but I could never get it to work either...
Here's what I'm talking about:
http://forum.xda-developers.com/showthread.php?t=1356514
http://forum.xda-developers.com/showthread.php?t=1512846

OK, well.....I've got the adjusted background images extracted from the framework-res.apk file that I got from the Russian site (I'm working with the lighter background option at this point). And...I've found the setting in WinRar to simply "store" (not compress) the updated png files. So far, so good. My altered apk file is the same size as the original.
The clincher is to get it back on the Nook without disaster ensuing. I'm going to follow Renate's method for pushing back framework-res.apk via ABD (from this thread):
C:\>adb shell
# stop
# mount -o rw,remount /dev/block/mmcblk0p5 /system
# ^C
C:\>adb push framework-res.apk /system/framework
C:\>adb shell
# reboot
Keep your fingers crossed. If it works, I'll report back with step-by-step and files.
[Report: in concept this "works". On reboot I could see the slightly grey background color in menu options and going to a few apps where I knew the menus were invisible, I could see white text on the slightly grey background. BUT...almost no apps will work. The B&N side seems to function OK, but the App drawer is useless. Back to the drawing board. The Russian site has a method for installation using RootExplorer. I'll try that next.]

OK...day 2. Here's what does NOT work:
1. method in post above using ADB
2. method using RootBorwser as adapted from Russian site and detailed below:
a. Change permissions in /system, /system/etc and /system/framework folders so that all users have write access
(note this is my kludge to get around not knowing how to "mount" the /system partition as r/w--maybe it's wrong?)
b. Use ADB wireless to move modified framework-res.apk into /system/etc
c. Use RootBrowser to check ownership of modified framework-res.apk (should be and was already owner: 0-root, group: 0-root)
d. Use RootBrowser to change permissions on modified framework-res.apk to rw-r--r-- (664)
e. Use RootBrowser to move (cut/paste) modified framework-res.apk into /system/framework (overwrite)
With Superuser permission, this all went off without a hitch.
f. Use RootBrowser to reset permissions of folders listed in (a)
g.Shut down Nook and restart.
The result is the same as the ADB-only method described before. The Nook starts up just fine. You can see that the background color of menus is slightly gray. Those changes have obviously worked. But the vast majority of apps will not run (ADW Launcher is an exception). At one point while I was fiddling with things the Nook spontaneously rebooted.
I guess that's better than spontaneously combusting
SIGH. Clearly, despite my best efforts, something I did in handling the framework-res.apk has damaged it in some subtle way, OR, my inability to properly "remount" the /system as R/W is causing the problem, although using ADB this is accomplished without difficulty and since the result is the same...it must be the modified apk file.
And this is why I have a dedicated SD card backup......

Method 3 that does NOT work:
1. Install Ninjamorph and BusyBox from Market
2. Follow instructions for altering framework-res.apk found here.
Two ways to Finish Project, with zip-align and without. Both yield the same result which is the same as the other methods above, i.e., the B&N stuff mostly works and the desired contrast of the menus is achieved so you can actually see what used to be invisible, but most apps will not run. Really frustrating.
I have to say that while this method seemed promising it is tedious in the extreme as each of the 28 png files must be replaced individually and that means each must be located in a much larger list (which reverts to the top after each replacement....). Ugh.
I simply don't believe anyone who says they can make these modifications with the instructions they have provided. It must be that people who are more familiar with this stuff are leaving out information which is so obvious to them that they don't even think to mention it

framework-res.apk is an apk and therefore it must be signed.
It's a system apk so it must be signed with the system signature.
Modifying a few things doesn't annoy the signature matching, other stuff does.
When you have problems, please quote from logcat because that tells you exactly what the problem is.
Using ADB:
Code:
logcat
Whatever.9.png are special files.
The are usually created thusly:
http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch
When they get packed into an apk they are turned into a PNG graphic with alpha channel.
aapt handles this.
If you take a PNG with sidebars and just zip it, it will not work.

Renate NST said:
When you have problems, please quote from logcat because that tells you exactly what the problem is.
Using ADB:
Code:
logcat
Whatever.9.png are special files.
The are usually created thusly:
http://developer.android.com/guide/topics/graphics/2d-graphics.html#nine-patch
When they get packed into an apk they are turned into a PNG graphic with alpha channel.
aapt handles this.
If you take a PNG with sidebars and just zip it, it will not work.
Click to expand...
Click to collapse
I just tried again and this time after pushing the amended framework-res.apk file (yes, all 28 amendations are nine-patch files) I typed in logcat before rebooting.
Whoosh!!! Lines of information went streaming by faster than I could follow, so much that some of the earliest disappeared from the top of the console window. I have no clue how to extract the text from the console window
The top-most complaint I saw was a reference to system error 1248 in association with the CleanMaster app. Then there seems to be a periodic (15 second) dhcpcd renewal. Eventually there is a section that says "Framework disconnected, eof, failed to read size, closing connection". Then comes a long list of notifications from the Service Manager about all the services that have just died. After that it just continues with the 15-second dhcpcd renewal cycle. Then I gave up and rebooted.
The result is the same as before. The new image backgrounds have been incorporated into the system, but most of the app drawer is just pretty icons. ADW runs--at least the drawer and home page appear. The B&N Home and Library pages load but you can't access any of the books shown. Wi-Fi can be accessed but no apps that use it will run. Occasionally the CleanMaster app throws up an error message.
Here's what I've learned so far:
1. In the original amended framework-res.apk file (for FW 1.10) viewing the archive reveals that the files which have been changed all have an "archive " attribute. None of the original files show any attribute. I don't know whether that is important. I've searched on this topic and have come up with nothing.
2. In moving the amended *.9.png files from the original Russian example for FW 1.10 into a copy of my own framework-res.apk for FW 1.21, those "archive" attributes came along for the ride and the resulting amended file does show "STORE" for the method so I think I got that part right and didn't recompress any files when moving from one apk to another (I dragged the files from one instance of WinRAR to another--I tried 7zip as well...).
But I have no idea why people report that this procedure works just fine. For me, it is predictable, but not successful.
I've just completed yet another restore from backup. I'm going to uninstall CleanMaster and try again. Perhaps it's background activities are driving the process into the ground. I have no clue.

Here's the logcat session file (learned how to get that done!) after a re-try, having removed CleanMaster first.
No change in the outcome but no bleating from the Nook about CleanMaster errors.

I wonder--is it the modified apk that is causing the system to malfunction, or....is it the way it is being pushed back to the Nook?
So..an experiment: I pulled a copy of the stock framework-res.apk from my Nook. I didn't do anything to it at all. Then I pushed it back to the Nook via wireless ABD:
C:\>adb shell
# stop
# mount -o rw,remount /dev/block/mmcblk0p5 /system
# ^C
C:\>adb push framework-res.apk /system/framework
C:\>adb shell
# reboot
This is supposed to work, yes? It does not. It leaves me in the same condition that all of the other attempts by this and other methods have. The Nook boots normally and displays Home but you can't access the "currently reading" book. I can get to the app drawer via the quicknav buttons, but very few apps will work (including ADB). There is no way to examine the file system because RootBrowser will not work (although ES File Explorer does, but it doesn't have root access).
So....whether the modified apk is OK or not, I would never know because all of the methods I have tried to get the framework-res.apk back onto the Nook have been unsuccessful.

That procedure should work fine.
Have you checked using the stock framework-res.apk ?

Renate NST said:
That procedure should work fine.
Have you checked using the stock framework-res.apk ?
Click to expand...
Click to collapse
Yes, that's what I just tried. Just pulled it via ADB and then pushed it right back. I also installed a copy of Root Explorer (I generally used Root Browser) because that's what was used in the original thread on the Russian site where I got started with the whole project. That also yields the same results. The Home screen loads but you can't access the book currently being read from it or from the little button at the top left. You can access any of the QuickNav options. The Library "functions". But you can't access books from their covers and the double-tap does not work.
In the app drawer, ADW seems to work fine but you can only run a very few apps, and none that require wi-fi (although wi-fi works). Too much fiddling around and the Nook spontaneously reboots.
When I have tried to move in the modified apk with the slightly gray background 9.png files I can see that the new image backgrounds have been used in the drop-down menus. This suggests to me that the problem is not in how the 9.png files have been moved from the FW1.10 apk obtained from the Russian site into my FW1.21 apk but rather in the integration of the modified apk into the system. I've checked permissions, etc. Everything is OK but the system is just screwed up.
I'm running FW1.21 which has been rooted using Nook Manager with Gapps added. I've done the multi-touch modification and have swapped in a modified internal.db file which seems to have solved the confusion of the "reading now" button. I have some apps that run along in the background, like Tasker and Clean Master (probably others that I don't realize). Do I need a completely clean system to make this change?

I saw the logcat and it showed that it's unhappy and killing the Android.
I couldn't see exactly where the problem is.
I think that you are doing too many things at once.
If there are specific things that do not work, a logcat when you do that should show.

Renate NST said:
I saw the logcat and it showed that it's unhappy and killing the Android.
I couldn't see exactly where the problem is.
I think that you are doing too many things at once.
If there are specific things that do not work, a logcat when you do that should show.
Click to expand...
Click to collapse
Yes, I was probably a little unclear. The ONLY thing that I did when I produced the logcat was attempt to push the modified framework-res.apk file back to the Nook. All those other things mentioned have long ago been successfully accomplished and included in my current backup (which I've had to use dozens of time in the last week or two as I struggle with this framework issue).
The ONLY change to the stock framework-res.apk is the overwriting of 28 *.9.png images with ones copied from another framework-res.apk which, unfortunately, is from FW1.10 (or I'd just use it "as is" without the copying). However, even pushing back an unmodified stock apk results in the same mess.
Like I say, based on what functionality remains when the modified apk file is pushed over, it is clear that the new images are being used, but the system function is severely degraded.
I don't know much about the process, but from what I've read I'm wondering if it would be better to use a zip via CM to deliver this modified file? That way the Android system is not even running (right?) during the replacement procedure.

When you say "stop" Android is no longer running.
Try clearing the cache:
Code:
rm -R /data/dalvik-cache/*

Renate NST said:
When you say "stop" Android is no longer running.
Try clearing the cache:
Code:
rm -R /data/dalvik-cache/*
Click to expand...
Click to collapse
Before pushing? After, but before rebooting?

Anytime that Android is stopped you can clear the cache.

I tried this with a copy of the stock apk:
Code:
C:\>adb shell
# stop
# rm -R /data/dalvik-cache/*
# mount -o rw,remount /dev/block/mmcblk0p5 /system
# ^C
C:\>adb push framework-res.apk /system/framework
C:\>adb shell
# reboot
It put me in an very long chase of the black and white dots that I almost thought would be endless but eventually it finished booting and is in the same condition as all the previous methods. Very crippled.
I can't figure it out

First, get the 1.2.1 update off B&N's website and unzip.
Get framework-res.apk out of that and push it.
The stuff in /system/framework should all be chmod 644.
An ADB push probably leaves it with wider access.
None of this should make any difference.
I'd guess that you are either missing a resource in your fw-r or else you modified something else.
Find an app that crashes. Get a logcat of just that crashing.

Renate NST said:
First, get the 1.2.1 update off B&N's website and unzip.
Get framework-res.apk out of that and push it.
The stuff in /system/framework should all be chmod 644.
An ADB push probably leaves it with wider access.
None of this should make any difference.
I'd guess that you are either missing a resource in your fw-r or else you modified something else.
Find an app that crashes. Get a logcat of just that crashing.
Click to expand...
Click to collapse
I got a copy of the FW 1.21 zip from B&N and extracted the framework-res.apk. I didn't try to push it yet. Instead I got the checksum for the current file on the Nook and compared it to the newly minted file. They were identical. I don't think there is any point in trying yet again with the same procedure. If my reasoning is incorrect, I'm certainly game to try anyway.
All files in /system/framework are chmod 644. The Framework folder itself (and the system folder) are something else, but the contents are all 644.
The only modifications I have made after rooting with Nook Manager are the installation of Google Apps, the implementation of multi-touch (I have to go back and look that up to see what all I did, but surely nothing with framework-res.apk or it never would have worked....), editing settings.db to relabel the QuickNav buttons after programming with NTMM, and pushing a modified copy of internal.db to fix the schizo "reading now" button. As i say, these are all long-established changes and the Nook has been stable with them. I think Google apps may modify framework.jar, but I'm not sure.
[I checked on multi-touch. I flashed a new kernal image and added one line to /etc/permissions/required_hardware.xml in order to enable multi-touch...have no idea what "flashed a new kernal" actually did, but it worked]
Two really noob questions: 1) how can I get a logcat of an app crashing when ADB will not run once a copy of framework-res.apk has been pushed? 2) if the Android system is actually stopped when I type "stop"in ADB shell, how does ADB continue to function?
And, actually, apps do not so much "crash" once I've attempted to put in a "new" framework-res.apk--most just refuse to run. But maybe there is something going on in the droid brain while the screen flickers a little and nothing else happens.

ADB runs under Linux, not the Android subsystem.
You should always be able to access ADB.
If ADB isn't running continuously and reliably you have problems.
If some app does not run, give the specific section in logcat where it doesn't run.

NGL3 Screensaver Images

Hi everyone,
I have a Nook GlowLight 3. I don't like the default screensavers, so I'd like to delete them and (optionally) put in some new ones. Is this possible?
Maybe it's just a matter of getting into the Nook's file system and replacing their image files with my own (with the same filenames)?
This Nook is new. I don't mind voiding the warranty, but I'd rather not unless I know it will be worthwhile. Otherwise, I would try it myself. So I'm hoping some kind soul who has a NGL3 that they have already broken into would be willing to take a look at it for me.
Please let me know if I can help! Thank you!!
Robert

I've got too many Nooks and I'm far removed from stock.
Do you have a directory /data/sleep/
That used to have PNGs for some standby images.
Do you currently have the old, creepy authors?

I have not rooted it or anything yet, just plugged it into my Mac and looked at the default directories it comes with. There is basically nothing there– I even had to research online and experiment how to just create a directory where I could sideload a PDF. So, no, I haven't seen any directory like you mentioned. And I'm not sure what you mean about the old authors(?). The screensavers I have are Symbols and Quotes. In any case, this is my first Nook, and it's less than a week old.
So, do you think there is a good chance I could make changes to the stock screensavers?

The "old, creepy authors" were the screensavers that made the Brontë sisters look like the witches out of Macbeth.
These images are all packed away in /system/priv-app/partner.apk in res/drawable-mdpi-v4/
Code:
artboard_1.png
artboard_2.png
artboard_3.png
artboard_4.png
artboard_5.png
artboard_6.png
artboard_7.png
artboard_8.png
alexander_pope.png
chinese_proverb_00.png
cicero.png
jane_austen.png
john_wilson.png
lady_mary_montagu.png
louisa_alcott.png
robert_southey.png
thomas_jefferson.png
thomas_kempis.png
The list of images is in res/values/arrays.xml in quotes_imgs and symbols_imgs
The actual screensaver mechanism is com.nook.partner.screensaver.ScreenSaver (in partner.apk).
If you repack that all it won't have a B&N signature
I'm not sure how much that will break things.
In worst case you could resign everything.
I think that I'd just rewrite ScreenSaver to fetch PNGs from a directory like /data/sleep
That way, changing the collection would be easier.

Oh, and another thing...
As always, the sloppiness of B&N gets to me.
Those "quote" image files are ten times the size of the "symbol" image files.
Why? Because they have a very subtle dithering to the backgrounds.
It's nothing that you can see even on a regular LCD monitor, let alone on a black & white eInk panel with 16 shades.
So the file is basically trying to compress random noise. That doesn't work out well.
Below is what you get when you use the fill tool (red) in MS Paint on the image.
It leaves holes because the adjacent pixels aren't exactly the same value.

Oh, yes: I remember those goofy portraits.
OK, thank you– I really appreciate your help! I am excited to try this out when I can snag some free time. I will try to post what happened, too.

OK, I was able to pull that partner.apk file to my Mac, and unzip it. The images are there. Awesome!
So, I'm temped to create my own B&W/greyscale pngs, with the same dimensions, and give them the same file names. Then put them in the same locations, rezip (with an apk extension), and push it into place. I know it will have a different file size, etc, but do you think that will be a problem? Normally I'd just try it, but I'm trying to err on the side of caution.
Thanks!

Newtham said:
rezip (with an apk extension), and push it into place.
Click to expand...
Click to collapse
Yes, it should work.
There doesn't seem to be any problem with signatures.
I modified all my images for fun and it didn't break anything.
(Although, I've hacked so much stuff on this that the screensaver never activate. This is not my primary reading device.)
It must have some signature (the originals will do) or it won't be acknowledged as an APK.
Make sure that you keep the original file as a backup.

I'm still new to this, so basic question: what is a signature (in this case) and how do I create or modify it?
Thanks!

Newtham said:
What is a signature...
Click to expand...
Click to collapse
Signatures are the three (or more) files in the META-INF directory in the zip (apk).
If they are there, that's fine.
To learn about apk signing Google it.

@Newtham
Oh! I figured something out. I looked through the code.
If you just want to have one screensaver of your own (which you could manually change).
All you have to do is change some undocumented settings.
File: /data/data/com.nook.partner/shared_prefs/screen_saver_preference.xml
Code:
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
[color=red]<boolean name="pref_key_screen_saver_from_sdcard" value="true" />
<string name="pref_key_screen_saver_from_path">/sdcard/sleep.png</string>[/color]
<boolean name="pref_key_screen_saver_low_power" value="false" />
<int name="key_screensaver_img_index" value="8" />
</map>

OK, awesome, thanks!
About a week ago, I tried just modifying the image files, rezipping & renaming to apk, and pushing into place, but I didn't modify the signatures. So now I'm stuck on the boot screen. (I forced it off in the meantime, but since it's e-ink, its still showing the boot screen.)
I can still see it on the command line via adb, but I no longer have write permission so I can't push the original apk back into place. So that's my next task. I haven't had time to play with it since then. It's fun playing with this, I just wish I had more time.

Newtham said:
I no longer have write permission...
Click to expand...
Click to collapse
Well, you did it once, it's just a question of making /system rw:
Code:
# mount -o rw,remount /system
One of the silly things that B&N did was making the "screensaver" and the "wallpaper" the same thing.
I'll have to write some code to make them separate things.

Lol! As I dived into this I realized that I had been all over this ground before.
The stuff I wrote in https://forum.xda-developers.com/showpost.php?p=79994025&postcount=11 about using settings to disable the B&N wallpaper is true but not necessary.
You can disable all that silliness with:
Code:
# pm disable com.nook.partner/.daydream.DayDream
You can set a simple white wallpaper using my Wallpaper.apk app available in the signature
The wallpaper only appears as a background to a launcher (or any app that has no background).
The Glow3 4.7 & Glow4 5.0 both broke the Wallpaper, you need a separate patch for that, see below.
I had previously made a patch to cycle through user supplied PNGs as a lock screen.
That patch is available in the signature as nook45patch.zip
Code:
C:\> adb pull /system/framework/android.policy.jar
C:\> apktool d android.policy.jar -o AP
C:\> mergesmali /v \AP\smali Screen.smali
C:\> apktool b AP -o android.policy.jar
Then replace android.policy.jar and delete/backup/rename/whatever android.policy.odex
Then stuff your PNGs in /data/sleep
Erm, I think this mostly applies to Glow2 4.5
I'll look more closely at Glow3 4.7
glow45patch.zip works fine on the Glow3 4.7 & Glow4 5.0

So, the nook45patch.zip works fine on the Glow3 4.7
I kind of confused myself, strange things happen if you have no images in data/sleep.
I'll look into that too.
The Glow3 & Glow4 have this problem where B&N stole the functionality of wallpaper for sleep screen.
The background on launchers appears black even though the Wallpaper API changes /data/system/users/0/wallpaper correctly.
I should be able to solve this one too.

There was a minor bug in the old patch.
It would barf if you didn't have any user images.
The new glow45patch.zip is in the signature under mergesmali.

The aforementioned glow45patch.zip is a valid patch for Glow3 4.7 too.
There is also the issue of the black Wallpaper on Glow3 4.7 when using a stock Launcher.
Does anybody else have this/notice it/care?
With 4.7 B&N got rid of /system/priv-app/SystemUI.apk and put it all into /system/priv-app/partner.apk
This necessitated a change in the WallpaperManager since it's all a different package.
The actual ImageWallpaper.DrawableEngine.drawFrame() is a bit complicated.
I couldn't (be bothered to) figure out how it was supposed to work and where it was failing.
To my taste, anything other than solid white wallpaper on an eInk device is just distracting.
I wrote a small patch to make drawFrame() just drawColor() instead of scaling and rotating Wallpapers.
Is there any interest in that?

I have been working on this, but I can't get write access via adb anymore. I have tried everything I can think of, including your suggestion above. I can log in to the adb shell and run as root and make changes there. But anytime I try to push anything with adb, it tells me it is read-only. When I run rootnook.sh, it tells me I'm already rooted, but no superSU found (and then roots again, with no different results). adb root doesn't work, either.
The only major thing that's changed recently is that I installed the latest nook update, which I thought would be a good idea before I start hacking. Maybe that messed it up.
I'm stumped (which is not difficult to do...). Any suggestion on how to get back in there?
Thanks!

You probably de-rooted yourself.
Does adb shell give a # prompt?
Does the shell command "id" tell that you are root?
Does the shell command "mount" tell you that /system is rw?
Does the shell command "getprop ro.secure" say 0 (security is off)?
When in doubt, push to sdcard and then copy (cp) to where it should be.

Thanks! Moving it to sdcard did the trick.
I unpacked the apk with apktool, edited the images directly (didn't change the file names), repacked it with apktool, and then (finally, by using the sdcard directory) got it back to the Nook. And then copied it into place. But I still get the same results: the GUI gets stuck on the boot screen.
So, do you think this has to do with signing the apk file? I did a lot of research on it, but mostly what I found was how to sign your own file, not someone else's. Do you have any tips on how I can do this (if that's what's needed)? Thanks!!
(P.S. Thanks for the info on the glow45patch. I haven't had a chance to look at it too closely yet, but it looks interesting. I'd still like to mod the actual pics, though, if I can.)