Database Users

Clockworkmod can't mount /sdcard ext4

Good Evening Everyone,
I am opening up this thread because I am not able to use the Backup Current Rom feature in my Nook Color using ext3 or ext4 file system on my micro-sd card.
Is there any way to fix this problem without using fat32?
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Bye and thank you very much in advance
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1

nookUser said:
Good Evening Everyone,
I am opening up this thread because I am not able to use the Backup Current Rom feature in my Nook Color using ext3 or ext4 file system on my micro-sd card.
Is there any way to fix this problem without using fat32?
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Bye and thank you very much in advance
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1
Click to expand...
Click to collapse
This sounds like you are running CM7 off of SD... you DO NOT use CWM for SD installs.
If you are not running off of SD... then I'd make sure you have the current version of CWM (3.2.0.1) and try mounting the SD from the menu's before trying anything else.

Hi, First of all, thanks for answering to my inquiry
Yes I run CM7 on from the internal memory of the Nook Color and yes, I am running CWM (3.2.0.1).
If I mount the sd card from the menu settings->storage->Mount SD Card, the sd card is mounted without any problems... The problem is when I try to Backup Current Rom
I tried also to reboot manually in recovery mood and do:
mounts and storage
mount /sdcard and I get Error mounting /sdcard!

nookUser said:
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1
Click to expand...
Click to collapse
Assuming you have a good flashable CwMR 3.2.01 uSD.
Plug it into the NC, when powering up, it should be automatically booted into CwM Recovery. From there, do the Backup.
No need to mount SD card. In fact, don't know why you would do that?

votinh said:
Assuming you have a good flashable CwMR 3.2.01 uSD.
Plug it into the NC, when powering up, it should be automatically booted into CwM Recovery. From there, do the Backup.
No need to mount SD card. In fact, don't know why you would do that?
Click to expand...
Click to collapse
1- How do I know if I have a good flashable CwMR 3.2.01 uSD?
I have the one that comes with the CM7 updated to 3.2.0.1.
2- I went on ROM Manager ->Backup Current ROM but still, when I am in the recovery mode and I click on
backup and restore -> backup
I get the message Can't mount /sdcard
I have also tried to turn on the nook and enter into the recovery mode by pressing the n key but still, I get Can't mount /sdcard when I try to backup my ROM.
What do I do wrong?
P.S. In case my CwMR is not good, how do I remove it?

nookUser said:
1- How do I know if I have a good flashable CwMR 3.2.01 uSD?
I have the one that comes with the CM7 updated to 3.2.0.1.
Click to expand...
Click to collapse
Ehhhh, honestly, no clue what you're trying to say.
Anyway, let's start from scratch.
Firstly, pls let us know your current system such ROM version, where it boots from, .....
Secondly, what are you trying to do? Make a backup?

votinh said:
Firstly, pls let us know your current system such ROM version
Click to expand...
Click to collapse
The ROM version is CyanogenMod-7-11162011-NIGHTLY-encore.
I got it in download.cyanogenmod.com/?device=encore
votinh said:
where it boots from, .....
Click to expand...
Click to collapse
It boots from eMMC (I think... I installed the ROM in the Internal Memory)
votinh said:
Secondly, what are you trying to do? Make a backup?
Click to expand...
Click to collapse
I am trying to make a backup on my micro-sd that has an ext4 file system
Bye and thank you very much.

Clear!
Now, if you did install ROM into eMMC yourself, then I assume you know how to create a flashable CwMR uSD and it is good.
Assuming the flashable uSD is fresh and good.
1. Insert the uSD into NC. Power it up. It will boot into recovery AUTOMATICALLY.
2. From the CwMR menu, using volume up/down button to to Advanced, then Backup. Let it run until finishes. Theoretically, the entire backup .zip file should be around 100MB.
3. Remove the uSD off NC.
4. The backup .zip file should probably be in the "clockworkmod" folder under ROOT. Transfer it to PC or other space to save.
That's it.
There is absolutely no need dealing with "mount SD" or "ext3" or "ext4"

[Q] What can be done to eMMC from CM7 SD install?

I'm running CM7 off of an SD card. I believe if I flash CWM Recovery from ROM Manager, it will flash it onto the eMMC ... is that correct?
Also, if I update the su binary from within Superuser apk, will it update it on the SD or eMMC?
Also, what would happen if I formatted SD from within CM7? Would it format the WHOLE SD or just the FAT32 partition that CM7 sees as the SD card?
My Nookcolor is not rooted or modified at all. I've never booted into the stock rom to be exact.
Thanks for the help.

JoshClarke said:
I'm running CM7 off of an SD card. I believe if I flash CWM Recovery from ROM Manager, it will flash it onto the eMMC ... is that correct?
Also, if I update the su binary from within Superuser apk, will it update it on the SD or eMMC?
Also, what would happen if I formatted SD from within CM7? Would it format the WHOLE SD or just the FAT32 partition that CM7 sees as the SD card?
My Nookcolor is not rooted or modified at all. I've never booted into the stock rom to be exact.
Thanks for the help.
Click to expand...
Click to collapse
You are right, flashing from ROM Manager puts it on emmc. And flashing things from CWM recovery normally flashes things to emmc. There are special modified versions of CWM that will flash things to SD, but I'm sure you don't have one of those. If you are interested in getting one that you put on SD so that you can backup your system, etc, just search for alternate CWM recovery and my name. I posted a version. (Edit: look here http://forum.xda-developers.com/showthread.php?p=22719241)
Updating su will put it on the system you are running at the time.
I think formatting the SD will format the whole card, if not at least your boot partition. I would not try it. You can put it in your PC and use partition software to format just partition 4 if you want just that sdcard partition cleared.

[Q] Dual Boot from emmc and from internal storage

This was probably already covered by another thread but i have looked through dozens of posts and i haven't found an answer yet...
So i want to know how i can boot one rom (cm7) from internal storage and another rom (cm9) from emmc...
if possible, please provide some files and a guide...
THANKS
-David

davidmargolin said:
This was probably already covered by another thread but i have looked through dozens of posts and i haven't found an answer yet...
So i want to know how i can boot one rom (cm7) from internal storage and another rom (cm9) from emmc...
if possible, please provide some files and a guide...
THANKS
-David
Click to expand...
Click to collapse
It's not difficult. Just follow these threads below.
First install CM7 to emmc per this thread:
http://forum.xda-developers.com/showthread.php?p=12797652
Then install CM9 to SD per this thread (just substitute CM9 for CM7 in the instructions):
http://forum.xda-developers.com/showthread.php?p=12240928
Also you need to use my updated generic image file instead of the one in the link above. Get it here:
http://forum.xda-developers.com/showthread.php?p=23153010
If you want to use both systems with the same SD card so you don't have to swap cards all the time, follow these instructions:
After you have installed both of these systems, go to CM7 and using root explorer, edit the file vold.fstab in /etc. There will be a line there that includes 'sdcard auto' (without the quote). Change that to 'sdcard 4'. Save and reboot. Now both CM7 and CM9 will share the same media sdcard space. No need to swap cards between systems.
Also to determine which system boots, hold the n key while nothing and a boot menu will come up. Use it to select which system you want to boot to.
Sent from my Nook Color running ICS and Tapatalk

emmc and internal
heres the thing though... i dont want anything booting from my sd card... just from my internal storage and then my emmc...

davidmargolin said:
heres the thing though... i dont want anything booting from my sd card... just from my internal storage and then my emmc...
Click to expand...
Click to collapse
Why?
BTW, emmc and internal storage are the same thing.
edit: There are some really old threads that tell you how to repartition the nook so that you can have two systems on emmc. But that is no longer recommended due to many issues, including updating is difficult and repartitioning is risky.
edit2: If you are thinking you can install a system to the media partition of emmc ("internal storage"), it's not possible. The only way to get two systems internally (ie., without using an SD) is to repartition. The existing media partition is deleted and new system partitions are created to accommodate the new system files and then a new smaller media partition is recreated. But that is a very non-standard installation and most update- zips will not work with that setup. You have to use specially modified versions.
Sent from my Nook Color running ICS and Tapatalk

emmc
leapinlar said:
Why?
BTW, emmc and internal storage are the same thing.
edit: There are some really old threads that tell you how to repartition the nook so that you can have two systems on emmc. But that is no longer recommended due to many issues, including updating is difficult and repartitioning is risky.
Sent from my Nook Color running ICS and Tapatalk
Click to expand...
Click to collapse
so why does my nook list emmc and internal seperately????
... look at the pic

davidmargolin said:
so why does my nook list emmc and internal seperately????
... look at the pic
Click to expand...
Click to collapse
Look at my edit2 above. That "internal storage" shown is just a partition of emmc (/data, which is part of emmc where your system data and apps are stored). And other systems cannot be installed there.
Why are you against SD installs?
edit: Just a little educating, emmc means Embedded MultiMedia Card. It is where everything is stored internally. It is partitioned into several partitions, /system, /data, /cache, and others. It creates a media partition to store your media and it calls that "emmc" on that picture you posted. and it calls the /data partition "internal storage". Very confusing for noobs.

merger
forget about dual booting for a sec...
can i merge the two partitions (internal + emmc) together...

davidmargolin said:
forget about dual booting for a sec...
can i merge the two partitions (internal + emmc) together...
Click to expand...
Click to collapse
No, see my edit above.
Edit: But you can change the size of each by repartitioning. The old nooks came with a 1GB /data and a 5GB /media. The newer nooks come with 5GB /data and 1GB /media. Looking at your picture you have the old nook.

mnt/usbdisk
sorry... i dont know too much bout these things...
but what about the additional storage mnt/usbdisk (see picture)... whats that

davidmargolin said:
sorry... i dont know too much bout these things...
but what about the additional storage mnt/usbdisk (see picture)... whats that
Click to expand...
Click to collapse
That is if you install a usb drive by attaching a special adapter and plugging in a usb flash drive.
If you want both CM9 and CM7, I highly recommend the scheme I listed in my first reply. It's what I use and it works great.

thanks
kk.. thanks alot... ill dual boot with sd...

davidmargolin said:
kk.. thanks alot... ill dual boot with sd...
Click to expand...
Click to collapse
After thinking about it, I would recommend reversing which is on emmc and which on SD. You will not be updating CM7 very often and likely updating CM9 a lot. It is easier to update emmc, so I would put CM9 on emmc and CM7 on SD.
Sent from my Nook Color running ICS and Tapatalk

gottcha
so i just use the disk image u gave me and write it to my sd card...
then i put cm7 on the card and the nook does the rest... right???

davidmargolin said:
so i just use the disk image u gave me and write it to my sd card...
then i put cm7 on the card and the nook does the rest... right???
Click to expand...
Click to collapse
Yes, assuming when you said 'write' you meant burned the image using win32diskimager.
Sent from my Nook Color running ICS and Tapatalk

Can't write to internal EMMC

Hi,
I have a nook that I rooted and put a custom rom on back about a year and a half ago. I flashed the ROM to the internal EMMC and CWM 3.2.0.1 was flashed as recovery. If it makes any difference it was a CM9 ROM
Now here's where I'm at. I can run ROMs off the sd-card but they are not stable at all. I get a whole bunch of force closes and such.
When I try and flash a new ROM to the internal EMMC it says it completes, but nothing changes. It is still the previous ROM. When I try and format the /data and /system partitions with the EMMC recovery, it doesn't complete. It says there is an error. When I format with TWRP off an sd card, it says it completes but once again, the rom is not wiped.
I've tried the 8 reboot error method, and it never gets to the stock recovery screen. It keeps booting to the EMMC ROM.
I've tried repartioning the EMMC with leapinlar's zip files. It says it successfully completes, but once again nothing changes.
Ideally I'd like to get the emmc back to stock and try and run a rom off the sdcard.
I've read the threads that I thought were applicable to my issues, but nothing seemed to work. I'm completely out of ideas. Anyone have similar issues or can provide some guidance?
Thanks.

The problem you are having running a ROM from SD is the brand and speed of SD you are using. It needs to be SanDisk class 4.
The reason the 8 failed boot does not work is you replaced the stock recovery with CWM. It needs the stock recovery to be able to complete. See my NC tips thread linked in my signature and read item A12. Assuming you can get it to flash, I have a stock recovery zip there.
I don't understand why the ROMs are not flashing. You say it gives errors when you try to wipe with CWM. What do the errors say? You used the internal CWM and TWRP on SD, but none worked. Try my bootable CWM SD to see if that helps.
I don't understand why my partition zips did not work. I know the newest TWRP will not flash them without giving an error 2 message. Try my bootable CWM SD.
Sent from my Nook HD+ running CM10.1 on Hybrid SD

Thanks for the advice...
I've been using a Patriot class 10 micro sd to run the roms/attempt to flash new roms. Its worked fine before, but I'll try and pickup another one from someplace.
When I try and format /system and /data from the emmc CWM it says "Error formatting /system" or "error formatting /data" after working away for about 5 minutes
Here's what i did:
Created CWM 6.0.1.2 Bootable SD
- Flashed NookColor-emmc-stockrecovery.zip
- Message said successfull.
- tried to restart and old CWM recovery 3.2.0.1 was still installed
Booted into CWM 6.0.1.2 Bootable SD Recovery
- mounted /system and /data
- attempted to format
- Message "Done." for both
- attempted to flash stock 1.4.3 that you have modified for CWM
- install from sdcard complete
- reboot
- Old CynanogenMod bootscreen and old rom still installed.
Using same CWM 6.0.1.2 Bootable Sd Recovery
-flashed NookColor-emmc-repair-partitions-1-4-5-6-7-8.zip and NookColor-emmc-format-partitions-5-6-7.zip
-said success
-attempted to flash stock 1.4.3
- nothing changed. Old rom still installed
One more thing I noticed:
Everytime I login to the currently flashed rom, any changes I make are never saved. For example, if i install an apk or uninstall an app, the next time i can successfully boot into the emmc ROM, those changes are reversed to the previous version. Could it be that the current rom is being stored somewhere and being reflashed when it tries to bootup?

I hate to say this, but it sounds like your internal embedded card has become read only. I have had this happen to SDs but not to emmc. The apps act like they are writing and if you leave the folder and come back, they are not there. It is like they are writing to a ramdisk instead of your SD. You might try booting to a ROM on SD and see if you can write to any of the internal partitions like /cache or /rom and see if they stick. If not, you may only be able to run off SD and maybe not even then. You might have to change your dalvik cache setting on SD so it uses /data instead of /cache.
Sent from my Galaxy Tab running Tapatalk

I tried copying a file to the emmc partition from twrp and it didn't persist after reboot... so it looks like the emmc is set to read only. I don't supposed I can change that using adb and/or software solutions right? It's a hardware issue?
Any guidance on how to change davlik cache to use /data instead of /cache? I'll be happy to get any sort of stable rom running off any SD card.
I was hoping to repurpose the nook as in in car tablet to tether a data connection to my phone and play music and such.
Thanks for your help. I appreciate you taking the time.

canjoe said:
I tried copying a file to the emmc partition from twrp and it didn't persist after reboot... so it looks like the emmc is set to read only. I don't supposed I can change that using adb and/or software solutions right? It's a hardware issue?
Any guidance on how to change davlik cache to use /data instead of /cache? I'll be happy to get any sort of stable rom running off any SD card.
I was hoping to repurpose the nook as in in car tablet to tether a data connection to my phone and play music and such.
Thanks for your help. I appreciate you taking the time.
Click to expand...
Click to collapse
I don't know of anything that can revive it. I never could revive my SD that that happened to.
To make your ROM on SD use /data for all of the dalvik cache, create a file in /data named local.prop. In that file put this line:
dalvik.vm.dexopt-data-only=1
Next time it boots the system file portion of dalvik cache will be on /data along with the installed app portion.
Sent from my stock Nook HD+ using XDA Premium

I now have a stable version of CM 7.2 running off the SD card. I put the davlik cache on the data partition and everything seems to be running pretty smooth.
I'll keep messing around seeing if there is anything to revive the internal emmc, but at least I can use the nook off the SD card again.
Thanks for helping me troubleshoot and figure this out. Cheers.

[Q] Which bootable image for CWM 6.0.4.8?

Trying to build a bootable SD Card with CWM 6.0.4.8. I used image "generic-sdcard-v1.3-CM7-9-10-10.1-10.2-11-largest-Rev8b.zip" with Win32DiskImage and when I place uRecImg and uRecRam on the SD card, it does load into CWM recovery, but once in I can't select anything involving the SD card as it says it "Can't mount /storage/sdcard0"
Is there a bootable image out there with 6.0.4.8 already on it that I should be using?

rbk123 said:
Trying to build a bootable SD Card with CWM 6.0.4.8. I used image "generic-sdcard-v1.3-CM7-9-10-10.1-10.2-11-largest-Rev8b.zip" with Win32DiskImage and when I place uRecImg and uRecRam on the SD card, it does load into CWM recovery, but once in I can't select anything involving the SD card as it says it "Can't mount /storage/sdcard0"
Is there a bootable image out there with 6.0.4.8 already on it that I should be using?
Click to expand...
Click to collapse
Would like to know this too.

rbk123 said:
Trying to build a bootable SD Card with CWM 6.0.4.8. I used image "generic-sdcard-v1.3-CM7-9-10-10.1-10.2-11-largest-Rev8b.zip" with Win32DiskImage and when I place uRecImg and uRecRam on the SD card, it does load into CWM recovery, but once in I can't select anything involving the SD card as it says it "Can't mount /storage/sdcard0"
Is there a bootable image out there with 6.0.4.8 already on it that I should be using?
Click to expand...
Click to collapse
That is the image for an SD install. You do not want to use that. I have some bootable SD images in my NC tips thread linked in my signature that can be used. Just use the same method you used on the other SD.
Sent from my SCH-i705 using XDA Premium HD app

leapinlar said:
That is the image for an SD install.
Click to expand...
Click to collapse
Actually I am trying to do an SD install - it's what I meant by making a bootable SD. I figure it's safer to see how CM11 runs before wiping my CM7 on the emmc.

rbk123 said:
Actually I am trying to do an SD install - it's what I meant by making a bootable SD. I figure it's safer to see how CM11 runs before wiping my CM7 on the emmc.
Click to expand...
Click to collapse
Then don't use CWM. And if you use the installer script you must use a nightly earlier than 5/15 until I get the script fixed. That is unless you are using steven676's experimental version of CWM for use on SD installs. If you are it is not yet ready for prime time and you may have glitches.
Sent from my BN NookHD+ using XDA Premium HD app

Ok, just to make sure I understand what you mean by "installer script", I can not use the Rev8b image with a post 5/15 CM11?
That's actually what I tried first and it didn't work which led me to try and get CWM6.0.4.8 working. I will try a pre-5/15 image with 8b shortly.

rbk123 said:
Ok, just to make sure I understand what you mean by "installer script", I can not use the Rev8b image with a post 5/15 CM11?
That's actually what I tried first and it didn't work which led me to try and get CWM6.0.4.8 working. I will try a pre-5/15 image with 8b shortly.
Click to expand...
Click to collapse
The installer script is part of 8b. It is the penguin with the scrolling text. And you need to use a CM11 zip older than 5/15.
Sent from my BN NookHD+ using XDA Premium HD app

That worked - I had used the 8b image but with the 5/18 nightly, which obviously was a fail.
I downloaded a 2/10 build and it booted and worked, albeit quite slow. Without CWM, how do I flash the 5/4 build? Or do I just have to redo the whole img creation on the SD card again?

rbk123 said:
That worked - I had used the 8b image but with the 5/18 nightly, which obviously was a fail.
I downloaded a 2/10 build and it booted and worked, albeit quite slow. Without CWM, how do I flash the 5/4 build? Or do I just have to redo the whole img creation on the SD card again?
Click to expand...
Click to collapse
No, just copy the zip to the boot partition and boot to the SD recovery (the script installer). It will find and install the new zip.
Sent from my BN NookHD+ using XDA Premium HD app

leapinlar said:
No, just copy the zip to the boot partition and boot to the SD recovery (the script installer). It will find and install the new zip.
Click to expand...
Click to collapse
I'll give that a shot. I tried re-imaging 8b with the 0504 build and it doesn't like it; same behavior as with the 0518 build. Looks like 8b needs builds older than 0504. I'll go back and try the 0210 build and then copying just the 0504 to the boot partition like you suggested.

Copying 0504 to the boot partition of the 0210 SD card worked. Can I do the same method for newer than 0515 versions?

rbk123 said:
I'll give that a shot. I tried re-imaging 8b with the 0504 build and it doesn't like it; same behavior as with the 0518 build. Looks like 8b needs builds older than 0504. I'll go back and try the 0210 build and then copying just the 0504 to the boot partition like you suggested.
Click to expand...
Click to collapse
Steven676 said the issue happened a while back but didn't know exactly when it happened. Once you get a version of CM11 installed, any new nightly will update (I used it right up to 5/15).
Note: If you have trouble installing gapps, see http://forum.xda-developers.com/showthread.php?p=49942253

Thanks to both of you for your help. So can I put a version of CM10 using this method, to see how it runs?
Pretty interesting to see how each version incrementally performs better. The Feb one was uber-slow, then 0504 was better. Just tried 0518 and it's another increase in performance. I'll keep working my way up.