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So, many of you want to run a full-size linux on your iconia. Unfortunately due to the fact that acer are a bunch of stupid mofos not releasing kernel source code and do not allow to flash unsigned ROMs we'll have to run it in chroot within android.
First thing to do is to get yourself a rootfs of linux. You can use angstrom, ubuntu.. I'm building debian using multistrap, the config is below. You'd better use pre-built ubuntu/backtrack and skip up to somewhere between steps 4 and 5, unless you have experience with dpkg and apt-get.
Code:
[General]
arch=armel
directory=/home/alexander/builds/multistrap
cleanup=false
retainsources=true
allowrecommends=false
noauth=true
unpack=true
aptsources=Grip
debootstrap=Debian
[Debian]
packages=screen openssh-server alsa-utils wireless-tools wpasupplicant nmap netcat
source=http://ftp.uk.debian.org/debian
keyring=debian-archive-keyring
suite=sid
[Grip]
packages=locales
keyring=emdebian-archive-keyring
source=http://www.emdebian.org/grip
suite=sid
Now we need to get it to iconia somehow. Running it from microsd would be incredibly slow and internal ssd is formatted to vfat. So let's loop mount it.
1. Create the loopback image
Code:
#700 mb
dd if=/dev/zero of=debian.img bs=10M count=70
mkfs.ext2 -f debian.img
2. Mount it as you always do.. on your desktop yet
Code:
mkdir /mnt/debian
mount -o loop -t ext2 debian.img /mnt/debian
3. Copy the desired files.. As a root user, you can cd to the rootfs (generated by multistrap) and
Code:
tar cvp . | tar xvp -C /mnt/debian
4. unmount the image.. (umount /mnt/debian) and copy to the /sdcard. I copy to the /sdcard/linux/debian.img. Also, I use the /sdcard/linux/uroot directory to mount the image on the tablet.
5. now, you need adb or terminal emulator and superuser permissions ('teh rewt')
Now let's make some script, name it android_sh and put it to /bin in /sdcard/linux/uroot. And make it executable (chmod +x /bin/android_sh)
Code:
#!/bin/bash
export PATH=/bin:/sbin:/usr/bin:/usr/sbin
export USER=root
export HOME=/root
export TERM=linux
if [ -z "`pidof Xtightvnc`" ] ; then
vncserver -geometry 1280x740 -depth 8
else
kill -9 `pidof Xtightvnc`
rm /tmp/.X11-unix/X*
rm /tmp/.X*lock
fi
/bin/bash -
Ok. now make another script, in /sdcard/linux
Code:
#!/bin/sh
LOOPBASE=/sdcard/linux
LOOPFILE=debian.img
LOOPTARGET=uroot
cd $LOOPBASE
if [ -z "`grep $LOOPBASE/$LOOPTARGET /proc/mounts`" ]; then
echo "mounting $LOOPFILE"
mount -o loop -t ext2 $LOOPBASE/$LOOPFILE $LOOPBASE/$LOOPTARGET
else
echo "$LOOPFILE already mounted"
fi
for i in dev proc sys
do
echo "processing $i"
if [ -z "`grep $LOOPBASE/$LOOPTARGET/$i /proc/mounts`" ]
then
echo "mounting $i"
mount -o bind /$i $LOOPBASE/$LOOPTARGET/$i
else
echo "$i already mounted"
fi
done
if [ -z "`grep $LOOPBASE/$LOOPTARGET/dev/pts /proc/mounts`" ]
then
mount -t tmpfs none $LOOPBASE/$LOOPTARGET/dev/pts
fi
echo "chroot into $LOOPBASE/$LOOPTARGET"
chroot $LOOPBASE/$LOOPTARGET /bin/android_sh
now, execute it (sh /sdcard/linux/chroot.sh). You should be in root shell now. If you're building debian using multistrap, configure the packages (dpkg-configure -a). Remember I told you to keep out of debian? Dash package is somewhat broken so you may need to lurk through mailing lists to make it install.. And you need to manually add your sid/testing mirrors to the aptitude config.
So what now? Install tightvnc server (in debian/ubuntu, use apt-get update; apt-get install tightvncserver), exit the shell and launch chroot.sh again.
If you're building rootfs yourself, don't forget to install some x desktop environment. I use lxde on debian, it is lightweight and starts automatically with tightvnc
Now, you can use the vnc client on android to connect to your X11. When chrooting, tightvnc wil tell you the number of x session, so use it as the last digit of the port (5901, 5902 etc). I welcome suggestions on how to improve the android_sh to cleanly kill all tightvnc servers and remove temporary files so that the port number is always the same
In the end you may or may not get something similiar to this:
http://img820.imageshack.us/img820/9076/img3159qm.jpg
P.S.
I recommend you to install Hacker's Keyboard which will give you the tab key, esc and arrows simultaneously and allow to use cool software like vim and emacs without pain
https://market.android.com/details?id=app-org.pocketworkstation.pckeyboard
U.B.D.Man...
Cool...But I got stucked at the first step. Where can I get debian.img?
you create a new file named debian.img using dd, then you format it to ext2 using mkfs.. well. you can just take backtrack image from xoom. essentially it's just ubuntu with some software added
I'm just curious why you chose ext2 as opposed to ext4? Given that the filesystem is actually a file on a filesystem, I sort of understand ext2, especially considering you can mount it with the ext4 driver now.
This probably sounds like a stupid question, but for some reason I cannot use bash?
It may be that my paths are not configured properly, but i dont have a bin at the "/" level. I have looked in /system/bin and /system/xbin, but have not found bash there either.
I installed busybox and have been able to perform root tasks, so I am not sure what I missed.
because.. you don't have bash.. you should have it in your chroot. if you need it in android, just install it (like http://forum.xda-developers.com/showthread.php?t=537827)
I installed bash according to the link you posted, but I still don't have a /bin outside of /system. I did change the above scripts to reflect this by saying:
#!/system/bin (but then I get the error 'event not found')
My prompt reads: "sh-3.2#" after reboot, which I understand is bash replacing the stock terminal.
I tried creating the /bin directory in the root, but even with root terminal, it said it was read only. Do I have to remount the root and then create a /bin directory?
When I rooted, I don't remember their being a lengthy discussion about bash installation, or the creation of a /bin directory.
I welcome all suggestions, as I am trying to learn more about the inner workings of the tablet, but still have little experience.
you need bash only in the linux in chroot and therefore do not need to modify scripts.
anyway,
mount -o remount,rw /system
cp bash /system/bin
chmod 755 /system/bin/bash
mount -o remount,ro /system
then you can start bash by typing 'bash' in shell
Hello,
I have tried and I still can't get it run. I am not used to Linux stuffs and scared that I may screwed up my tab. Can you please pack the required files and upload it so that we can follow easier? something like this http://www.secmaniac.com/may-2011/backtrack-5-on-motorola-xoom-in-10-minutes-or-less/ would be great.
Thank you.
PS: I sincerely want to get BackTrack on my tab so that I can run R on this
moved to http://forum.xda-developers.com/showthread.php?t=1094237
sp3dev said:
because.. you don't have bash.. you should have it in your chroot. if you need it in android, just install it (like http://forum.xda-developers.com/showthread.php?t=537827)
Click to expand...
Click to collapse
I ended up installing bash, but I still had problems with chroot and getting the scripts to run, so I decided to reverse what I was doing. In the process of trying to remove the bash shell and replace with the stock sh, I must have messed something up.
I tried a factory reset, and when I loaded back up again, I can't get wifi to connect. My suspicion is that there is at least two separate things wrong:
-My shell is somewhere in permission limbo or non-existant
I try running >adb shell and I get:
"- exec '/system/bin/sh' failed: No such file or directory (2) -"
-The permissions on my wpa_supplicant are probably messed up, hence I can't connect to wifi
Any suggestions?
Well I tried a few more things:
-Tried copying over bash to /system/bin, got an error that it is a read-only file system. Funny, because I need shell (chmod?) in order to repair the shell, those bastards.
-Tried installing apk using adb, got same message about 'sh' missing. I think I will have to reflash a system.img, but I can't seem to find the Wifi-US with a working link.
Any help would be much appreciated.
Hey guys, could you upload and send me the link of a video of this working? Cause I love the idea of it but I'm not sure if its really practical
Sent from my A500 using XDA Premium App
OK, I spent a couple of hours figuring out how loop mounting works. The problem is that the mount command in both toolbox and busybox supports only one loop device. I modified the toolbox version to allow the specification of a new loop device.
Here is how to make a 500mb loop-mounted ext2 system at /mnt/myloop , with the system being stored in /storage/sdcard/myext2system.img
Step 1. Make sure you have root. Download bettermount*.zip to your PC from here. Copy the "bettermount" file from the zip file to /data/local/ (or some other location). One way of doing that is with:
Code:
adb push bettermount /data/local
on the PC. Or you can mount your device to USB, copy bettermount to storage, and then in a root shell copy it to /data/local. Or if you have RW root, you can install bettermount in /bin or some other convenient location.
Start a shell on the device, either via adb or an on-device terminal (not recommended unless you have an external keyboard). Switch to root:
Code:
su
Then make bettermount executable:
Code:
chmod 755 /data/local/bettermount
The following steps assume you're still in your root shell.
Step 2. Create ext2 file system in a file. (Skip this if you already have one.)
Code:
dd if=/dev/zero of=/storage/sdcard/myext2system.img bs=1M count=500
mke2fs /storage/sdcard/myext2system.img
mke2fs will give you a warning that this isn't a block special device, but just press "y" and "enter".
Step 3. Create a loop device node for the ext2 file system. The problem here is that the OS uses loop device nodes for apps moved to external storage and one for the system squashfs, and it only has enough loop device nodes for those purposes--any loop device nodes in /dev/block are already in use. On the assumption that you aren't going to have more than 253 apps moved to storage, we're going to create a loop device node numbered 255. If you like, you can check that there isn't already one with that number with
Code:
ls /dev/block/loop*
So, let's create the loop device node:
Code:
mknod -m640 /dev/block/loop255 b 7 255
Step 4. Create a mount point:
Code:
mkdir /mnt/myloop
Step 5. Mount myext2filesystem.img:
Code:
/data/local/bettermount -t ext2 -orw,exec,noatime,nodiratime,sync,loop=/dev/block/loop255 /storage/sdcard/myext2system.img /mnt/myloop
Enjoy your new file system at /mnt/myloop !
You will have to repeat Steps 3-5 after every boot, or else you can make a script that runs every time you boot. You could simply put the commands for 3-5 into a Script Manager script set to run on boot, or there may be some better, more unixy way (but I haven't had any luck editing startup scripts).
What to do with your shiny new filesystem? Well, you could move not just apps but also their libraries to external storage (you can also do that by remounting your external storage in exec mode).
arpruss said:
OK, I spent a couple of hours figuring out how loop mounting works. The problem is that the mount command in both toolbox and busybox supports only one loop device. I modified the toolbox version to allow the specification of a new loop device.
Here is how to make a 500mb loop-mounted ext2 system at /mnt/myloop , with the system being stored in /storage/sdcard/myext2system.img
Step 1. Make sure you have root. Download bettermount*.zip to your PC from here. Copy the "bettermount" file from the zip file to /data/local/ (or some other location). One way of doing that is with:
Code:
adb push bettermount /data/local
on the PC. Or you can mount your device to USB, copy bettermount to storage, and then in a root shell copy it to /data/local. Or if you have RW root, you can install bettermount in /bin or some other convenient location.
Start a shell on the device, either via adb or an on-device terminal (not recommended unless you have an external keyboard). Switch to root:
Code:
su
Then make bettermount executable:
Code:
chmod 755 /data/local/bettermount
The following steps assume you're still in your root shell.
Step 2. Create ext2 file system in a file. (Skip this if you already have one.)
Code:
dd if=/dev/zero of=/storage/sdcard/myext2system.img bs=1M count=500
mke2fs /storage/sdcard/myext2system.img
mke2fs will give you a warning that this isn't a block special device, but just press "y" and "enter".
Step 3. Create a loop device node for the ext2 file system. The problem here is that the OS uses loop device nodes for apps moved to external storage and one for the system squashfs, and it only has enough loop device nodes for those purposes--any loop device nodes in /dev/block are already in use. On the assumption that you aren't going to have more than 253 apps moved to storage, we're going to create a loop device node numbered 255. If you like, you can check that there isn't already one with that number with
Code:
ls /dev/block/loop*
So, let's create the loop device node:
Code:
mknod -m640 /dev/block/loop255 b 7 255
Step 4. Create a mount point:
Code:
mkdir /mnt/myloop
Step 5. Mount myext2filesystem.img:
Code:
/data/local/bettermount -t ext2 -orw,exec,noatime,nodiratime,sync,loop=/dev/block/loop255 /storage/sdcard/myext2filesystem.img /mnt/myloop
Enjoy your new file system at /mnt/myloop !
You will have to repeat Steps 3-5 after every boot, or else you can make a script that runs every time you boot. You could simply put the commands for 3-5 into a Script Manager script set to run on boot, or there may be some better, more unixy way (but I haven't had any luck editing startup scripts).
What to do with your shiny new filesystem? Well, you could move not just apps but also their libraries to external storage (you can also do that by remounting your external storage in exec mode).
Click to expand...
Click to collapse
Which version of busybox were you testing with? I haven't had a problem with multiple loop devices...
I've been using the stock busybox: 1.7.2.
Do you use -oloop=/dev/block/loopNN to specify the device?
I just tried 1.16.0 from the Titanium Backup website. No luck. I created /dev/block/loop222. Then:
Code:
# /tmp/busybox mount -t ext2 -oloop=/dev/block/loop222 /storage/10.img /mnt/myloop
mount: can't setup loop device: No such file or directory
# bettermount -t ext2 -oloop=/dev/block/loop222 /storage/10.img /mnt/myloop
# (works!)
I also tried just plain -oloop, without the =/dev/block/loop222, and it didn't work.
arpruss said:
I've been using the stock busybox: 1.7.2.
Do you use -oloop=/dev/block/loopNN to specify the device?
I just tried 1.16.0 from the Titanium Backup website. No luck. I created /dev/block/loop222. Then:
Code:
# /tmp/busybox mount -t ext2 -oloop=/dev/block/loop222 /storage/10.img /mnt/myloop
mount: can't setup loop device: No such file or directory
# bettermount -t ext2 -oloop=/dev/block/loop222 /storage/10.img /mnt/myloop
# (works!)
I also tried just plain -oloop, without the =/dev/block/loop222, and it didn't work.
Click to expand...
Click to collapse
I can't remember if mount was symlinked to busybox at the time, but I just used the standard "mount -o loop disk1.img /mnt/disk". I may have even been on a custom kernel and had a crosscompiled mount, so good work, this is probably going to be a common problem for people.
The problem with busybox seems to be that it thinks /dev/block/loop0 is free, but it's not. Doing losetup -f returns /dev/block/loop0.
If you could mount the loopdevice in init.rc this would be the easiest way to expand the 300MB /data problem with archos.
Also it might be the best way in CM7 until its stable for the persistent Data between revisions.
fzelle said:
If you could mount the loopdevice in init.rc this would be the easiest way to expand the 300MB /data problem with archos.
Also it might be the best way in CM7 until its stable for the persistent Data between revisions.
Click to expand...
Click to collapse
I have had no luck adding anything to init.rc with the rw root.
Moreover, /storage and /storage/sdcard get mounted quite late in the boot process--late enough that I think one can't just move the /data directory there. I suppose one might be able to mount them earlier in the process, but I haven't been able to figure out how to run anything in an init script. If anybody knows how to do it, please speak up!
What one could do, however, is mount the loop from an app's on-boot notification, and then symlink individual app files.
It looks like with a better busybox than the one included with the device, one can also use losetup to specify the loop device--see here.
I built a full 1.18.5 version of Busybox, and it does loop mounting just right. You can replace Step 1 of my HOWTO with fetching my modified busybox and putting it in /data/local, from http://code.google.com/p/busybox-for-android/downloads/list
Then step 3 is not needed.
Step 4 should be replaceable with the very simple:
Code:
/data/local/busybox mount -orw,exec,noatime,nodiratime,sync,loop /storage/sdcard/myext2system.img /mnt/myloop
Or if you're pressed for time, and want to use default mount options:
Code:
/data/local/busybox mount -oloop /storage/sdcard/myext2system.img /mnt/myloop
But if you want to implement this is inside an app, depending on your license needs, you may want to use the longer method, since busybox is GPL while bettermount is Apache 2.
I couldn't run scripts in init.d, and it took me a while to figure this out, so I'm sharing. There is more than one way to do this.
Step 1. Install chulri's rw root.
Step 2. Create a script directory and a runall script to run all the scripts in a given directory. To do that, you can type the following in an adb shell:
Code:
su
mkdir /data/local/bootscript
chmod 755 /data/local/bootscript
cd /data/local/bootscript
cat > runall
#!/bin/sh
for x in /data/local/bootscript/*.sh ; do /bin/sh $x ; done
(You can copy and paste that into a DOS window running adb.) Now press ctrl-d, enter. Then continue:
Code:
chmod 755 runall
Step 3. Edit /init.rc. You can do that on-device with vi and ssh, or you can install an editor that preserves Linux line-endings on your desktop (I use CONTEXT). I'll assume you're doing this with adb. So on the desktop do:
Code:
adb pull /init.rc init.rc
Now, edit init.rc on the PC, and to the section listing all the services, add:
Code:
service bootscript /data/local/bootscript/runall
enabled
oneshot
Then put it back on the device:
Code:
adb push init.rc /tmp
adb shell
su
mv /tmp/init.rc /
Step 4. Now you can put whatever scripts you want to run in /data/local/bootscript. Just make sure you they have a .sh extension. All scripts will be run with /bin/sh and there is no need to specify #!/bin/sh . Also, there is no need to chmod the scripts to render them executable. You can just copy scripts in.
To disable a script, just change its .sh extension to .disabled.
There are, of course, other ways of doing this.
great tutorial!
I have been resisting the urge to flash a custom ROM for a bit, but I really miss having init.d support. So I read a few threads for other phones and rolled my own.
Warnings
I borrowed bits and pieces from various places. If you don't know what init.d is, you probably don't want to do this. If you aren't willing to take responsibility for bricking your tablet, don't do this. Seriously, the risk of bricking is very low, but if you aren't comfortable booting into an adb shell from recovery, maybe this is not for you. Strongly suggest a nandroid backup before you get started so if you totally bork things you can just hit rewind.
Note: The latest CWM may prompt you on a reboot that the ROM may overwrite the bootloader and offer to fix it for you. Don't do that. The init.d hack takes over the bootloader install script, but does not change your bootloader! If you accidentally do let it fix things for you, just rebuild the install-bootloader.sh file. The other steps should be fine.
Prerequisites
First, you need root, busybox, and some sort of terminal (either adb, or some terminal you like using on the tablet).
I have found that I like Busybox Installer (from the market; https://play.google.com/store/apps/details?id=com.jrummy.busybox.installer) but for some reason it doesn't create new symlinks unless you click advanced install.
Let's get to it!
In the shell (don't type # or anything after #):
Code:
su # get root
mount -o remount,rw /system # get access to /system (4.04 seems to mount ro as is usual; seems like the original mounted rw)
which run-parts # if you don't see /system/xbin/run-parts you need to install/reinstall busybox; if it is somewhere else, note it
mkdir /system/etc/init.d
Create a file called sysinit -- we are going to put it in /system/bin. You can edit it in place with vi, mount your tablet and edit it on your computer, or create it on the computer and push it via adb. Whatever.
Here's the file (you do need the # and the things after it in the file!):
Code:
#!/system/bin/sh
export PATH=/sbin:/system/sbin:/system/bin:/system/xbin
/system/bin/logwrapper /system/xbin/run-parts /system/etc/init.d
Note that if your run-parts is not in /system/xbin (from the which command) then fix the above to reflect your reality.
In the shell, make it executable
Code:
chmod 755 /system/bin/sysinit
Now go in the init.d directory and create some things you want to run at start up. For example:
Code:
cd /system/etc/init.d
echo '#!/system/bin/sh' >99test # note: you do need the first # in this line but not the 2nd!
echo 'date >>/data/tmp/init.d-log.txt' >>99test
chmod 755 99test
Here's a more practical one (yes, you need the # signs). Name it something like 10diskperf -- don't forget to chmod it.
Code:
#!/system/bin/sh
# Set disk read aheads to 1024
chmod 777 /sys/block/mmcblk0/queue/read_ahead_kb
echo "1024" > /sys/block/mmcblk0/queue/read_ahead_kb
chmod 777 /sys/block/mmcblk1/queue/read_ahead_kb
echo "1024" > /sys/block/mmcblk1/queue/read_ahead_kb
chmod 777 /sys/devices/virtual/bdi/179:0/read_ahead_kb
echo "1024" > /sys/devices/virtual/bdi/179:0/read_ahead_kb
Or here is one to tweak some TCP parameters (25sysctl):
Code:
#!/system/bin/sh
sysctl -w net.core.rmem_max=524288
sysctl -w net.core.wmem_max=524288
sysctl -w net.ipv4.tcp_rmem=6144 87380 524288
sysctl -w net.ipv4.tcp_wmem=6144 87380 524288
Whatever files you put in, you need to remember to make them executable (chmod 755).
Finally, you need to kick it all off at start up. The hack for that is we are going to create /system/etc/install-recovery.sh which apparently runs on each boot.
Code:
cd /system/etc
echo '#!/system/bin/sh' >install-recovery.sh
echo '/system/bin/sysinit' >>install-recovery.sh
chmod 755 install-recovery.sh
Tips and troubleshooting
If you are too lazy to cut and paste I have the files here (View attachment init.d-support.zip) that you can just move to the right places and change permission. If you are really lazy there is lightly tested install script below.
I like to try running the whole thing before a reboot to see if I get any errors:
Code:
/system/etc/install-recovery.sh
I'd suggest putting the 99test file in first. Verify that you get the expected file in /data/tmp and then reboot and check again. Then you can remove 99test.
Same goes for adding new scripts. Try running them from the shell to see if they throw errors before you reboot!
If you have trouble, see if this looks right:
Code:
ls -ld /system/etc/install-recovery.sh /system/bin/sysinit /system/etc/init.d /system/xbin/run-parts
-rwxr-xr-x root root 39 2012-07-14 10:00 install-recovery.sh
-rwxr-xr-x root root 140 2012-07-14 10:01 sysinit
drwxrwxrwx root root 2012-07-14 10:10 init.d
lrwxrwxrwx root root 2012-07-14 09:55 run-parts -> /system/xbin/busybox
For the brave
The install-init.d zip file (View attachment install-init.d.zip) contains a lightly tested script that SHOULD do the install steps for you.
Send the file to your android to someplace that can execute code (e.g., /system/xbin; I had to use adb to put it on the sdcard and then move it to /systemxbin in the shell since I don't have the adb root kernel installed).
Code:
cd /system/xbin # or wherever you have it
chmod 755 install-init.d
./install-init.d
It performs rude checks to see if init.d exists, and tries to handle moving or missing busybox. It only installs 99test as a script.
Let me know if this works or doesn't work for you.
For the extra brave: There is no reason this should only work on the Samsung. This ought to work on pretty much most stock ROMs as long as they execute install-recovery.sh on start up.
Scripts
What do you put in your init.d? If you post anything cool I'll put it up here in the op.
One that gave me some real gains in I/O performance required a new version of the tune2fs executable. By default, it is part of busybox but the busybox one only has a few simple options. I've included a stand alone version and the script 10disktune here View attachment disktune.zip. Unpack the zip and put the 10disktune in /system/etc/init.d (don't forget to chmod) and put tune2fs in /system/bin (chmod that too). Note that busybox has one in /system/xbin but the script specifically calls out the one in /system/bin.
Here's one that will zipalign your apks on each boot
Code:
#!/system/bin/sh
for apk in /data/app/*.apk ; do
zipalign -c 4 $apk
ZCHECK=$?
if [ $ZCHECK -eq 1 ]; then
zipalign -f 4 $apk /cache/$(basename $apk)
if [ -e /cache/$(basename $apk) ]; then
cp -p -f /cache/$(basename $apk) $apk
rm /cache/$(basename $apk)
fi;
fi;
done;
Fin
Corrections welcome. I considered using exec or . to load some of this into one shell but given that it runs once at startup, I figured it is fine as is.
All files for reference
View attachment init.d-support.zip
View attachment install-init.d.zip
View attachment disktune.zip
Great guide, gonna try it tonight.
Sent from a GNote, hell yeah!
SirRhor said:
Great guide, gonna try it tonight.
Sent from a GNote, hell yeah!
Click to expand...
Click to collapse
I'm curious how it went. If you ran into any issues, let me know so I can update the op. Thanks!
Hmm did anyone get this to work?
wd5gnr said:
Hmm did anyone get this to work?
Click to expand...
Click to collapse
I did it on my Galaxy Nexus.
It works great, I had a bit of problem with the sysinit file, but when I downloaded your zip file and used your sysinit, it worked, so it must be a problem from my side
Thanks for this, I can finally use "Odex Me"
aavan said:
I did it on my Galaxy Nexus.
It works great, I had a bit of problem with the sysinit file, but when I downloaded your zip file and used your sysinit, it worked, so it must be a problem from my side
Thanks for this, I can finally use "Odex Me"
Click to expand...
Click to collapse
Great, just wanted to be sure I hadn't made any typos/errors in the guide.
A lot of init.d files collected here: http://forum.xda-developers.com/showthread.php?t=1227269
Also build.prop things, etc.
Thanks, I use your guide and worksperfect for my RK3066 devices. Very simple to understand all steps and what we are doing to our system, perfect for me. Thanks again dude
Melch1zedeK said:
Thanks, I use your guide and worksperfect for my RK3066 devices. Very simple to understand all steps and what we are doing to our system, perfect for me. Thanks again dude
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Click to collapse
Glad to help!
What is thhe utility of this?
moliverac8 said:
What is thhe utility of this?
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Click to collapse
Init.d is how Linux and many Android (which is kind of Linux, after all) systems manage executing commands on boot up.
The /etc/init.d files run in numerical order as root and you can do things like change system settings, manipulate the file system, etc.
See the init.d section linked below for some ideas.
http://forum.xda-developers.com/showthread.php?t=1227269
Question? what is the difference in this method and running a script?
wd5gnr said:
Init.d is how Linux and many Android (which is kind of Linux, after all) systems manage executing commands on boot up.
The /etc/init.d files run in numerical order as root and you can do things like change system settings, manipulate the file system, etc.
See the init.d section linked below for some ideas.
http://forum.xda-developers.com/showthread.php?t=1227269
Click to expand...
Click to collapse
I use the "swap memory script" and was wondering if it would also work this way with the init.d If so would there be any benefit this way over the current way of running it one way or the other? One drawback I see running the script as is is that I have to wait once the system has fully booted until the script has run and I see the Smanager screen to let me know that my memory has been remounted.
Thanks for the info and the learning process.
Here is the script and the link.
http://forum.xda-developers.com/showthread.php?t=1961097
Code:
sleep 5
mount -o remount,rw /
mount -t vfat -o umask=0000 /dev/block/vold/179:25 /mnt/sdcard
sleep 5
mount -o bind /data/media /mnt/extSdCard
As long as the device is ready to mount at boot time and doesn't get remounted, ought to work. Backup and try it
External memory wasn't ready
wd5gnr said:
As long as the device is ready to mount at boot time and doesn't get remounted, ought to work. Backup and try it
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Click to collapse
Thanks for the guide, but I think that the external memory was not ready to be mounted at that time. it didn't see the card till after boot. It was worth a shot, Reverted back to the script in /data and all worked again,
Note: I didn't find /system/xbin/run-parts however, I did find /system/bin/run-parts and changed the path to reflect that, I don't think this was an issue but I'm not 100% sure.
The maximum and minimum cpu frequencies allow by the Kernel can be set to all the Android ROM ever made for the HP TOUCHPAD until now and forever!
This is apply as a native setting ( as shipped from the factory, we could say )
The ROM will not be modify, no need for ROOT access or install SuperSu or any Apps.
It can be done to an existing installed ROM, no need to re-flash, is safe and will not damage your installation or prevent you from using your TP. Even if you do not do it right, you will get your TP running as always.
This is only done in a Linux OS, I am using ubuntu, which it can also be run under a Virtual Machine in any other OS.
1. Get the boot.img from the zip ROM or the current uImage from the TP boot directory.
(The boot.img must be copy to the root/hpboot directory of the PC, not on the tablet)
2. Run each of this commands separately in terminal in the directory the boot.img is.
dumpimage -i boot.img kernel.uImage
dumpimage -i boot.img -p 1 ram
dd if=ram of=ramdisk.img.gz bs=64 skip=1
gunzip ramdisk.img.gz
mkdir ramdisk; cd ramdisk
cpio -i < ../ramdisk.img
3. Go to the ramdisk direcoty and open this file in a text editor:
init.tenderloin.power.rc
Copy and Paste under # CPU Scaling and # CPU boost the following:
Note: You can add different settings to each cpu0 or cpu1.
Different frequencies to each and also assigned different Governors to each cpu.
You have total and individual control.
# CPU Scaling
# Replace the numbers at the first two lines at the end with the frequencies your TP can handle.
# Replace the numbers at the last two lines at the end with the frequencies your TP can handle.
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq 192000
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq 192000
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 1782000
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq 1782000
# Configure Performance Governor
# This is optional, but it will speed boot time using both CPU at maximum frequencies.
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor "performance"
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor "performance"
# CPU boost
# Set your desire speed can not be higher than your maximum frequencies.
write /sys/module/cpu_boost/parameters/boost_ms 20
write /sys/module/cpu_boost/parameters/sync_threshold 1782000
write /sys/module/cpu_boost/parameters/input_boost_freq 1782000
You can configure the type of governor after the system finished booting on this line. Is all up to the Kernel and your choice, but interactive is good.
# Configure Interactive
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor "interactive"
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor "interactive"
4. Save the changes and repack the ramdisk with kernel.
Open Terminal in the ramdisk folder and paste:
find . | cpio --create --format='newc' | gzip > ../ramdisk_Pack.img
5. Go to the folder where the original boot.img file is and you should have a file ( ramdisk_Pack.img )
Paste the following two commands:
mkimage -A arm -O linux -T ramdisk -C none -a 0x00000000 -n "TENDERLOIN MAX CPU" -d ./ramdisk_Pack.img ./ramdisk.uImage
mkimage -A arm -T multi -C none -n "Tenderloin Android MAX CPU" -d kernel.uImage:ramdisk.uImage uImage.Android_MAX_CPU
6. There is a file name uImage.Android_MAX_CPU in the same folder as your original boot.img, copy it to your TP boot directory and reboot.
If you enter a wrong frequency and it did not finished then do a hard reset and select the other boot image and use it as always. If it finished booting then you are running faster than ever!
To take in consideration:
The Kernel in the ROM has the frequencies that supports, most of the ROM comes with a top frequencies of 1782000. The SKZ kernel allows for a maximum frequency of 1890000.
The HP Touchpad where made with different suppliers of components. Due to this differences not all supports the same maximum frequencies. Very few can work under 1890000 or 18360000. But you can get lucky and have one. You should know and test the maximum speed that it will take, you can do that with Kernels apps before making modifications to the Boot Image, also the minimum frequencies are important as well.
The advantages of creating your own personal Maximum Speed Boot Image:
1 You will get faster boot time as the CPUs are set to work after the system starts the booting process and do not have to wait until the GUI starts and the Kernel app applies the settings.
2. Keep your ROM secure, no ROOT and no Super User, use it as is.
3. Less apps to install to take space and waste of Memory. Kernel apps and Super User have background services that are all time running just to give you the extra speed. Other apps can get the extra Ram for more processing.
4. There is more benefits of running the device at a higher frequency with no extra processing power, than have multiple apps to fine tune your CPU and governors but use resources.
View attachment 4613960
I don't know how to do with this, please help.
[email protected]:/mnt/g/devices/tenderloin/12.5.1/ramdisk$ find . | cpio –create –format=’newc’ | gzip > ../rak_Pack.img
cpio: You must specify one of -oipt options.
Try `cpio --help' or `cpio --usage' for more information.
Try 'cpio --help' or 'cpio --usage' for more information.
In this post I did a detail explanation on how to unpack the boot image.
https://forum.xda-developers.com/hp-touchpad/development/make-root-permanet-read-write-to-t3846567
Create a directory on root ( hpboot ) copy and paste the command on terminal as is on the post and it should work.
View attachment 4614596
[email protected]:/mnt/g/devices/tenderloin$ cd ./hpboot/
[email protected]:/mnt/g/devices/tenderloin/hpboot$ ls
boot.img
[email protected]:/mnt/g/devices/tenderloin/hpboot$ dumpimage -i boot.img kernel.uImage
[email protected]:/mnt/g/devices/tenderloin/hpboot$ dumpimage -i boot.img -p 1 ram
[email protected]:/mnt/g/devices/tenderloin/hpboot$ dd if=ram of=ramdisk.img.gz bs=64 skip=1
28781+1 records in
28781+1 records out
1842017 bytes (1.8 MB, 1.8 MiB) copied, 0.431285 s, 4.3 MB/s
[email protected]:/mnt/g/devices/tenderloin/hpboot$ gunzip ramdisk.img.gz
[email protected]:/mnt/g/devices/tenderloin/hpboot$ mkdir ramdisk; cd ramdisk
[email protected]:/mnt/g/devices/tenderloin/hpboot/ramdisk$ cpio -i < ../ramdisk.img
6819 blocks
[email protected]:/mnt/g/devices/tenderloin/hpboot/ramdisk$ find . | cpio –create –format=’newc’ | gzip > ../rakRW.img
cpio: You must specify one of -oipt options.
Try `cpio --help' or `cpio --usage' for more information.
Try 'cpio --help' or 'cpio --usage' for more information.
[email protected]:/mnt/g/devices/tenderloin/hpboot/ramdisk$
I did it due to https://forum.xda-developers.com/hp-...te-to-t3846567 , but it stuck just like last time I did it.
What does this mean?
cpio: You must specify one of -oipt options.
I can not see the picture you attached and the link does not work.
Are you doing all the commands inside a Linux machine?
zcarrt said:
--SNIP--
[email protected]:/mnt/g/devices/tenderloin/hpboot/ramdisk$ find . | cpio –create –format=’newc’ | gzip > ../rakRW.img
cpio: You must specify one of -oipt options.
Try `cpio --help' or `cpio --usage' for more information.
--SNIP--
Click to expand...
Click to collapse
It may be copied wrong. It should be: cpio --create -–format=’newc’ (not one dash but two, i.e. not -create, -format, but --create, --format)
The working path shows: [email protected]:/mnt/g/devices/tenderloin/hpboot$
I am not a Linux guru, but it look the boot.img is on the root of the tablet and not the PC.
The commands will only work properly if the directory is created in the root of the PC no where else.
((correction))
Yes, you are correct, is something about pasting a double dash that it turns into a hyphen (single dash). When editing the post it shows as intended, double dash. When publish, shows as a single dash, unless the font size is change on here and type again.
How I did it:
Enter the command in ubuntu terminal ( worked ) then copy and paste into LibreOffice Writer.
Write the guide, then copy and paste into the forum, to avoid any mistakes.
Then surprise ! a double dash is change to a hyphen and I am not even aware of it..!
Thanks for correcting!
HP_TOUCHPAD said:
The working path shows: [email protected]:/mnt/g/devices/tenderloin/hpboot$
I am not a Linux guru, but it look the boot.img is on the root of the tablet and not the PC.
The commands will only work properly if the directory is created in the root of the PC no where else.
Click to expand...
Click to collapse
I thought that, too, but there wouldn't be enough room for the dd command to work, and the error message wouldn't have been a cpio error.
my path:
[email protected]:~/hpboot$
There should not be any mounted device anywhere.
HP_TOUCHPAD said:
I can not see the picture you attached and the link does not work.
Are you doing all the commands inside a Linux machine?
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Click to collapse
I did it in windows 10 Ubuntu bash last time , I will try it properly in a Linux machine again. Thanks.
zcarrt said:
I did it in windows 10 Ubuntu bash last time , I will try it properly in a Linux machine again. Thanks.
Click to expand...
Click to collapse
The problem was on the formatting on my post. When I paste the guide for some reason it shows as a hyphen instead of a double dash.
I corrected the error. This is how it should be, also should work in the windows10 linux subsystem.
find . | cpio --create --format='newc' | gzip > ../ramdisk_Pack.img
Stuck on step 5.
Not clear where to "paste" the 2 lines. I "pasted" them in terminal but get the following:
Usage: mkimage -l image
-l ==> list image header information
mkimage [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image
-A ==> set architecture to 'arch'
-O ==> set operating system to 'os'
-T ==> set image type to 'type'
-C ==> set compression type 'comp'
-a ==> set load address to 'addr' (hex)
-e ==> set entry point to 'ep' (hex)
-n ==> set image name to 'name'
-d ==> use image data from 'datafile'
-x ==> set XIP (execute in place)
mkimage [-D dtc_options] [-f fit-image.its|-F] fit-image
-D => set all options for device tree compiler
-f => input filename for FIT source
Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)
mkimage -V ==> print version information and exit
Use -T to see a list of available image types
Any help please?
Thanks.
kojam said:
Stuck on step 5.
Not clear where to "paste" the 2 lines. I "pasted" them in terminal but get the following:
go to this post and run the script, if all work on your system then you have everything to build it.
https://forum.xda-developers.com/showpost.php?p=78028080&postcount=4
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Click to collapse
HP_TOUCHPAD said:
kojam said:
Stuck on step 5.
Not clear where to "paste" the 2 lines. I "pasted" them in terminal but get the following:
5. Go to the folder where the original boot.img file is and you should have a file ( ramdisk_Pack.img )
Paste the following two commands:
mkimage -A arm -O linux -T ramdisk -C none -a 0x00000000 -n “TENDERLOIN MAX CPU” -d ./ramdisk_Pack.img ./ramdisk.uImage
mkimage -A arm -T multi -C none -n “Tenderloin Android MAX CPU” -d kernel.uImage:ramdisk.uImage uImage.Android_MAX_CPU
go to this post and run the script, if all work on your system then you have everything to build it.
https://forum.xda-developers.com/showpost.php?p=78028080&postcount=4
Click to expand...
Click to collapse
Thanks for your reply.
I was in that folder (where ramdisk_Pack.img is) in terminal, then I entered/pasted those commands in terminal...
What am I doing wrong? Explain it to me like I'm 5yrs old please. LOL :laugh::silly:
Thanks a million!
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Click to collapse
kojam said:
HP_TOUCHPAD said:
Thanks for your reply.
I was in that folder (where ramdisk_Pack.img is) in terminal, then I entered/pasted those commands in terminal...
What am I doing wrong? Explain it to me like I'm 5yrs old please. LOL :laugh::silly:
Thanks a million!
Click to expand...
Click to collapse
My apologies, you did everything right. The error was in the command I posted which is now corrected.
This is how it happen:
I created the commands in ubuntu text editor, then wrote the instructions in LibreOffice Writer, then copy and paste everything to this forum. Then the apostrophe character got changed and that is why the command was not working.
I tested the commands one by one and I was able to finish the process, you should be able to do it also. This is a learning process and I thank you for trying it and finding out the errors.
Redo everything again as I also corrected the changes for the CPU speed.
Click to expand...
Click to collapse
HP_TOUCHPAD said:
kojam said:
My apologies, you did everything right. The error was in the command I posted which is now corrected.
This is how it happen:
I created the commands in ubuntu text editor, then wrote the instructions in LibreOffice Writer, then copy and paste everything to this forum. Then the apostrophe character got changed and that is why the command was not working.
I tested the commands one by one and I was able to finish the process, you should be able to do it also. This is a learning process and I thank you for trying it and finding out the errors.
Redo everything again as I also corrected the changes for the CPU speed.
Click to expand...
Click to collapse
Quite alright friend.
It is I who thanks you for this.
I was able to get create the file after following your update/corrected instructions.
Thanks again!
Click to expand...
Click to collapse
HP_TOUCHPAD said:
kojam said:
My apologies, you did everything right. The error was in the command I posted which is now corrected.
This is how it happen:
I created the commands in ubuntu text editor, then wrote the instructions in LibreOffice Writer, then copy and paste everything to this forum. Then the apostrophe character got changed and that is why the command was not working.
I tested the commands one by one and I was able to finish the process, you should be able to do it also. This is a learning process and I thank you for trying it and finding out the errors.
Redo everything again as I also corrected the changes for the CPU speed.
Click to expand...
Click to collapse
Thanks!
Worked!
Click to expand...
Click to collapse