Database Info

[Q] help unrooting!!!! atrix 4g

$ export PATH=/data/local/bin:$PATH
$ su
# mount -o rw,remount /dev/block/mmcblk0p12 /system
# mount -o rw,remount /dev/bloxk/mmcblk0p17 /system
# rm /system/bin/su
# rm /preinstall/sqlite3
rm failed for /preinstall/sqlite3, Read-only file system
# rm /preinstall/dosu
rm failed for /preinstall/dosu, Read-only file system
#
WHAT DO I DO NOW???? i need to send this in for replacement !

[Q] removing BT5 arm off xoom

Hey, I installed BT5 arm on the Motorola Xoom wifi and i would like to know how to completely remove it from my device. My device is rooted and i have tried to delete the whole BT5 file with astro file manager and absolute file manager but neither of them worked. I was wondering if anyone knows another way of doing it.

I tried deleting it with commands in terminal emulator but its a read only file. Wouldn't chmod help with that? If so how would i use it?

jimmothycharles said:
I tried deleting it with commands in terminal emulator but its a read only file. Wouldn't chmod help with that? If so how would i use it?
Click to expand...
Click to collapse
Go read the backtrack 5 thread. There is a link on how to remove it. That really should be the first thing you check before asking

ok thanks, ill do that the next time i have a problem

I couldn't find it. I think it might be a tiamat BT5 img and i have the remover tool but im not quite sure how to use it. I just flashed it like i would do with a rom but it says installation failed. what would i do to fix that?

jimmothycharles said:
I couldn't find it. I think it might be a tiamat BT5 img and i have the remover tool but im not quite sure how to use it. I just flashed it like i would do with a rom but it says installation failed. what would i do to fix that?
Click to expand...
Click to collapse
Common knowledge - system must be set to RW
Here is an alternate route- manually
How To:
ADB Shell Folder Removal - (we will use BT5 as an example)
++++++++++++++++++++++++++++
1. Connect Xoom to pc
2. Boot into recovery
3. Toggle to internal storage as /sdcard
4. mount /data
Enter adb shell via pc
(cd to file location) in this case BT5, is in the sdcard directory
Code:
Code:
cd /sdcard #
(once typed, you will be at.... /data/media prompt)
if after the above command and you are not at the /data/media prompt start over)
Code:
Code:
rm -r BT5
(BT5 is the stubborn Folder)
*Side note ... This works for any other stubborn folder that you want to delete as well...
USE AT YOU OWN RISK - MAKE SURE YOU DO A BACKUP FIRST
If this was helpful Hit The Thanks!

it didnt work it said that rm failed for BT5, permission denied

jimmothycharles said:
it didnt work it said that rm failed for BT5, permission denied
Click to expand...
Click to collapse
Come on now, lol Your device must be set to rw. Google can guide you.

Mjamocha said:
Come on now, lol Your device must be set to rw. Google can guide you.
Click to expand...
Click to collapse
ok well this is what i got when i tried to do that.
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Windows\System32>cd C:\Users\josh\Desktop\xoom files\BT5
C:\Users\josh\Desktop\xoom files\BT5>adb shell
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
[email protected]:/ # cd storage/sdcard0/0/0/0
cd storage/sdcard0/0/0/0
[email protected]:/storage/sdcard0/0/0/0 # ls
ls
Android
BT5
Box
DCIM
Download
Evernote
Pictures
SELog.txt
Video
airdroid
goodies
goomanager
tmp
[email protected]:/storage/sdcard0/0/0/0 # rm -r BT5
rm -r BT5
rm failed for BT5, Permission denied
255|[email protected]:/storage/sdcard0/0/0/0 # rm BT5
rm BT5
rm failed for BT5, Is a directory
255|[email protected]:/storage/sdcard0/0/0/0 # cd
cd
[email protected]:/data # exit
exit
C:\Users\josh\Desktop\xoom files\BT5>adb shell
[email protected]:/ # mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
[email protected]:/ # cd storage/sdcard0/0/0/0
cd storage/sdcard0/0/0/0
[email protected]:/storage/sdcard0/0/0/0 # ls
ls
Android
BT5
Box
DCIM
Download
Evernote
Pictures
SELog.txt
Video
airdroid
goodies
goomanager
tmp
[email protected]:/storage/sdcard0/0/0/0 # rm -r BT5
rm -r BT5
rm failed for BT5, Permission denied
255|[email protected]:/storage/sdcard0/0/0/0 # rm -rBT5
rm -rBT5
rm failed for -rBT5, No such file or directory
255|[email protected]:/storage/sdcard0/0/0/0 # chmod 777 BT5
chmod 777 BT5
[email protected]:/storage/sdcard0/0/0/0 # rm -r BT5
rm -r BT5
rm failed for BT5, Permission denied
255|[email protected]:/storage/sdcard0/0/0/0 #
I looked up on google how to mount system rw and thats where [email protected]:/ # mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system came from. then i tried rm -r BT5 after that and it was still denied. so i tried to
do chmod 777 BT5 to give all permissions and then when i tried to remove it again it was still denied.
I looked up the permissions of the file and its set to rwxrwxr-x. so chmod apparently didn't work

HTC Sensation, Cyanogenmod 9.1, /sd-ext Encryption with Cryptsetup

Having encrypted /data, I'd been interested in encrypting the SD card, either in full, or a full partition. As a new poster to xda, posting without citing reference links does prove a bit more challenging, but here goes:
Given an HTC Sensation, rooted, with Cyanogenmod 9.1 (ICS), and Clockwork Recovery, I partitioned (thru Clockwork) the SD card into FAT32, ext, and swap. Your milage may vary on the next step, but using Fedora, I accessed the SD card, deleted the ext partition, and recreated as an encrypted partition, type ext4. (read up on cryptsetup for alternative ways to create this) For the sake of this post, we'll use the password, "ChangeMe".
I installed LUKS Manager from Google Play, which provides lm.cryptsetup, a renamed binary of Guardian Project's cryptsetup. I didn't use LUKS Manager's implementation of creating encrypted folders, instead, the whole sd-ext partition has been encrypted.
To mount the device at startup, I have the script 99sd-extLUKinit, located at /system/etc/init.d/
#!/system/bin/sh
# Not quite sure what these do, but kept them in
sync;
setprop lk.filesystem.ready 1;
# Remount the root file system to allow changes
mount -o remount,rw rootfs /
# Create the mount point and create a symbolic link
mkdir /mnt/sd-ext
ln -s /mnt/sd-ext /sd-ext
# Decrypt the SD card via cryptsetup, device resides on /dev/block/sd-ext
# Hopefully prompt user for password, but for now, echoed in
echo ChangeMe | lm.cryptsetup luksOpen /dev/block/mmcblk1p2 sd-ext
# Clean errors
e2fsck -y /dev/mapper/sd-ext
# Mount the SD Card via cryptsetup block device
mount -t ext4 -o noatime,nodiratime,barrier=1 /dev/mapper/sd-ext /mnt/sd-ext/
# Remount the root file system to prevent changes
mount -o remount,ro rootfs /
Once verified that the system will automount the encrypted ext4 /mnt/sd-ext partition:
ls /sd-ext
should return with lost & found directory
I moved /data/app and /data/app-private to the encrypted partition:
cp -a /data/app /sd-ext/app
rm -r /data/app
ln -s /sd-ext/app /data/app
cp -a /data/app-private /sd-ext/app-private
rm -r /data/app-private
ln -s /sd-ext/app-private /sd-ext/app-private

Entware (Optware replacement) for android

I want to introduce a new android project - Entware. It can be considered as an Optware replacement.
Entware (arm version for cortex-a9 or higher) was first done for routers
_cannot post url ((((
Later it was tested on NASes
_cannot post url ((((
It is based on another project Qnapware, that is based on Entware (mipsel version).
Today I've tested Entware.arm on android (routed RK3188 TV stick) and it works.
I'm rather new to android. So my instuctions given below may not always be correct. I was installing Entware.arm connecting to android host using SshDroid.
1. I need a writeble /opt folder. I've done the following
Code:
/system/bin/mount -o rw,remount /
mkdir /opt
/system/bin/mount -o ro,remount /
I have a ext2 formated external sd card (symlinks are needed). I have made a directory and mount binded it to opt
Code:
mkdir /mnt/external_sd/entware.arm
mount -o bind /mnt/external_sd/entware.arm /opt
I do not know why android does not have shell in /bin
So let's make one
Code:
/system/bin/mount -o rw,remount /
mkdir /bin
ln -s /system/bin/sh /bin/sh
/system/bin/mount -o ro,remount /
Now I'll need a local root profile with the content to execute global Entware profile:
Code:
[email protected]:/data/data/berserker.android.apps.sshdroid/home # pwd
/data/data/berserker.android.apps.sshdroid/home
[email protected]:/data/data/berserker.android.apps.sshdroid/home # cat .profile
#!/system/bin/sh
. /opt/etc/profile
The preparation is finished. Now let install Entware
Code:
wget h__p_//qnapware.zyxmon.org/binaries-armv7/installer/entware_install_arm.sh
chmod +x ./entware_install_arm.sh
./entware_install_arm.sh
After the installation - logout and login again (to execute /opt/etc/profile) and install packages
Code:
opkg install mc
If something in my instructions does not fit android philosophy - please inform me.
Addition:
To make Entware changes permanent we needs startup script. Something like
Code:
#!/system/bin/sh
sleep 3
/system/bin/mount -o rw,remount /
sleep 1
/system/bin/chmod 777 /mnt/external_sd
/system/bin/mkdir /opt
/system/bin/mkdir /bin
ln -s /system/bin/sh /bin/sh
/system/bin/mount -o ro,remount /
sleep 3
/system/bin/mount -t ext2 -o rw /dev/block/mmcblk0p1 /mnt/external_sd
/system/bin/mount -o bind /mnt/external_sd/entware.arm /opt
sleep 2
/opt/etc/init.d/rc.unslung start
This script creates /bin /opt folders creates symlink /bin/sh, binds /opt to Entware folder location and starts Entware services.

zyxmon said:
I want to introduce a new android project - Entware. It can be considered as an Optware replacement.
Entware (arm version for cortex-a9 or higher) was first done for routers
_cannot post url ((((
Later it was tested on NASes
_cannot post url ((((
It is based on another project Qnapware, that is based on Entware (mipsel version).
Today I've tested Entware.arm on android (routed RK3188 TV stick) and it works.
I'm rather new to android. So my instuctions given below may not always be correct. I was installing Entware.arm connecting to android host using SshDroid.
1. I need a writeble /opt folder. I've done the following
Code:
/system/bin/mount -o rw,remount /
mkdir /opt
/system/bin/mount -o ro,remount /
I have and ext2 formated external sd card (symlinks are needed). I have made a directory and moun binded it to opt
Code:
mkdir /mnt/external_sd/entware.arm
mount -o bind /mnt/external_sd/entware.arm /opt
I do not know why android does not have shell in /bin
So let's make one
Code:
/system/bin/mount -o rw,remount /
mkdir /bin
ln -s /system/bin/sh /bin/sh
/system/bin/mount -o ro,remount /
Now I'll need a local root profile with the content to execute gloabal Entware profile:
Code:
[email protected]:/data/data/berserker.android.apps.sshdroid/home # pwd
/data/data/berserker.android.apps.sshdroid/home
[email protected]:/data/data/berserker.android.apps.sshdroid/home # cat .profile
#!/system/bin/sh
. /opt/etc/profile
The preparation is finished. Now install Entware
Code:
wget h__p_//qnapware.zyxmon.org/binaries-armv7/installer/entware_install_arm.sh
chmod +x ./entware_install_arm.sh
./entware_install_arm.sh
After the installation - logout and login again (to execute /opt/etc/profile) and install packages
Code:
opkg install mc
If something in my instructions does not fit android philosophy - please inform me.
Addition:
To make Entware changes permanent on needs sturtup script. Something like
Code:
#!/system/bin/sh
sleep 3
/system/bin/mount -o rw,remount /
sleep 1
/system/bin/chmod 777 /mnt/external_sd
/system/bin/mkdir /opt
/system/bin/mkdir /bin
ln -s /system/bin/sh /bin/sh
/system/bin/mount -o ro,remount /
sleep 3
/system/bin/mount -t ext2 -o rw /dev/block/mmcblk0p1 /mnt/external_sd
/system/bin/mount -o bind /mnt/external_sd/entware.arm /opt
sleep 2
/opt/etc/init.d/rc.unslung start
This script creates /bin /opt folders creates symlink /bin/sh, binds /opt to Entware folder location and starts Entware services.
Click to expand...
Click to collapse
Interesting.
Is this for smart phones???

GokulNC said:
Interesting.
Is this for smart phones???
Click to expand...
Click to collapse
Entware will work on armv7l/cortex-a9 or compatible CPU. It does not matter, weather it is smart phone, tablet, router or NAS.

Working well on this end, except for the fact that it has no concept of Android users and groups. For example, ls -l from busybox returns things like user "1000" group "1000", and bash with a PS1 including \u returns "I have no name!". Thoughts?

Lollipop 5.1.1 won't use the bind mounted folders

Can anyone please explain what the <censorship> Lollipop is doing with the mount points? I made this simple test script to move the dalvik-cache folder into the "sd-ext", a secondary partition in the SD card in ext4 format:
Code:
#!/system/bin/sh
#
# Stop Android from booting
#
stop
#
#
SDEXT=/dev/block/mmcblk1p2
if [ ! -e /data/dalvik-cache ]; then
mkdir /data/dalvik-cache
chmod 771 /data/dalvik-cache
chown 0.0 /data/dalvik-cache
fi
mount -o rw,remount / && mkdir /sd-ext
mount -w -t ext4 $SDEXT /sd-ext && chmod 775 /sd-ext
mkdir /sd-ext/dalvik-cache
chmod 771 /sd-ext/dalvik-cache && chown 0.0 /sd-ext/dalvik-cache
busybox mount /sd-ext/dalvik-cache /data/dalvik-cache
mount -o ro,remount /
#
# Finished. restart Android
#
start
The problem here is that no matter if /data/dalvik-cache is mounted in /sd-ext/dalvik-cache (and it is) Android/zygote or whoever is in charge still manages to put the dalvik caches in the original /data/dalvik-cache folder. I added the stop/start commands to stop the zygote and its relatives from running. The script is started from /system/su.d as from SuperSU documentation. Which means at the moment the su daemon starts.
I mean this is a much simpler test version of a script I made for GB and worked through KK (with no need to ad the stop/start commands either). What's going on? What am I missing?

Miche1asso said:
Can anyone please explain what the <censorship> Lollipop is doing with the mount points? I made this simple test script to move the dalvik-cache folder into the "sd-ext", a secondary partition in the SD card in ext4 format:
Code:
#!/system/bin/sh
#
# Stop Android from booting
#
stop
#
#
SDEXT=/dev/block/mmcblk1p2
if [ ! -e /data/dalvik-cache ]; then
mkdir /data/dalvik-cache
chmod 771 /data/dalvik-cache
chown 0.0 /data/dalvik-cache
fi
mount -o rw,remount / && mkdir /sd-ext
mount -w -t ext4 $SDEXT /sd-ext && chmod 775 /sd-ext
mkdir /sd-ext/dalvik-cache
chmod 771 /sd-ext/dalvik-cache && chown 0.0 /sd-ext/dalvik-cache
busybox mount [color=red]--bind[/color] /sd-ext/dalvik-cache /data/dalvik-cache
mount -o ro,remount /
#
# Finished. restart Android
#
start
The problem here is that no matter if /data/dalvik-cache is mounted in /sd-ext/dalvik-cache (and it is) Android/zygote or whoever is in charge still manages to put the dalvik caches in the original /data/dalvik-cache folder. I added the stop/start commands to stop the zygote and its relatives from running. The script is started from /system/su.d as from SuperSU documentation. Which means at the moment the su daemon starts.
I mean this is a much simpler test version of a script I made for GB and worked through KK (with no need to ad the stop/start commands either). What's going on? What am I missing?
Click to expand...
Click to collapse
--bind missing?
Have you tried instead modifying boot.img to run it directly? --- add in a busybox and replace the dalvik creation with a redirect to a .sh...

HypoTurtle said:
--bind missing?
Have you tried instead modifying boot.img to run it directly? --- add in a busybox and replace the dalvik creation with a redirect to a .sh...
Click to expand...
Click to collapse
Well, I used "busymox mount" because it automatically detects that being two directories they get mounted as a bind. Or so i supposed. Still i doubled checked, now. Same thing.
Not sure what you mean about redirecting to a .sh. Anyway, I also tried (the old) mounts2sd for testing. Same thing. it's like if something in Android gets hold of /data and its subdirectory and mounting over it doesn't matter. This with zygote dead. It's driving me mad.

Well, I believe it is related to selinux and the mount namespaces. I disabled the option in SuperSU to have individual name spaces and something different did happen: the whole ART crashed, rebooting the phone (not just Android, I think even the kernel restarts).
As they usually say.. let's forget about it. Link2SD doesn't help much either, since it must keep the system dalvik caches (more than 500GB) in the internal memory.