[Q] /system automatically remounts as ro - Thinkpad Tablet General

I'm rooted via the standard root, with CWM installed.
When I attempt to mount /system as read-write with mount -o rw,remount /dev/block/system /system, about 10 seconds later it remounts as -ro.
This means I can't change anything on there, is anyone else having this issue and is there a fix?

MrLadoodle said:
I'm rooted via the standard root, with CWM installed.
When I attempt to mount /system as read-write with mount -o rw,remount /dev/block/system /system, about 10 seconds later it remounts as -ro.
This means I can't change anything on there, is anyone else having this issue and is there a fix?
Click to expand...
Click to collapse
I had a similar problem once and I fixed it by restoring an old nandroid backup, I was never able to figure out what caused it.

I had the same issue when I installed the ota2 update, then tried to reroot. I think I was able to change permissions by installing, then opening superuser app.

Im on OTA1.

Hello,
I've got the same problem. With the following programs i have read/write access to /system only for seconds:
Esexplorer, file manager hd, root explorer, total commander , especially: adb shell
Strange thing: i have no problems with permissons when using x-plore or titanium backup.
(Currently OTA2)
Installing superuser again does not fix anything.

I have the same problem here (OTA2) :-/
A workaround I found is to chain the remount-command with the command you want to execute on /system:
Code:
$ su
# mount -o rw,remount -t ext4 /dev/block/mmcblk0p3 /system && cp /sdcard/Download/kernel_modules/cifs.ko /system/lib/modules/
# ls /system/lib/modules/
bcm4329.ko
cifs.ko
scsi_wait_scan.ko

Brilliant!

Related

root explorer wont mount r/w in /system

I am rooted, with s-off.. and I cant mount r/w with root explorer anywhere in the /system folder. It works everywhere else.
I even tried
terminal emulator
su
mount -o remount,rw /system
I found that in another thread, still wont work.
EDIT: nevermind, found in a few posts down. its busybox mount -o remount,rw /system..

Terminal command help remount help

I have an Atrix on AT&T. Which means there's a bootloader encryption, and the carrier prevents non-market apk installations, which I have resolved since my phone is rooted and I have changed the boot animation already.
In order to do these things, I found Ghost Commander that would let me chmod my system directories...which is fine, but I feel kind of gimped that I can't do it on terminal.
Basically, what I want to be able to do is remount /system as rw using terminal.
This method doesn't work on both terminal and emulator on my phone. I have done:
Terminal:
Code:
sudo su
cd [sdk directory]
./adb devices
./adb shell
su
mount -o remount,rw -t ext3 /dev/block/mmcblk0p12 /system
and this is where I get stuck because I just get an Invalid argument error.
Here is some info about my sytem -
Usage: mount [-r] [-w] [-o options] [-t type] device directory
/dev/block/mmcblk0p12 /system ext3 ro,noatime,nodiratime, data=ordered 0 0
Been searching for the answers for a while now, and now I'm here. What am I doing wrong? Thanks
there
Code:
mount -o remount,rw /dev/mmcblk0p12 /system
back
Code:
mount -o remount,ro /dev/mmcblk0p12 /system
Hmm, well at least I didn't get any errors this time.
I didn't get a confirmation or that it did anything at all. Is that normal?
Run mount with no parameters and look for the line with that device name, should see rw in that line instead of ro.
Sent from my MB860 using XDA App
Thanks guys, but I resorted to busybox chmod command instead lol
I tried this and got no errors, and using cat /proc/mounts/ I see the path as rw. But when I try to copy I still get the read only file system error.
**Lol, I had the phone in usb storage mode and had to switch it to Windows Media Sync**

[Q] Cant cp or mv modules to dir "access denied"

I am trying to copy modules to /system/lib/modules/. I have rooted with Gingerbreak. I have superuser permissions both with adb and from terminal emulator. I have changed system to rw both from TE and with ADB. I used this command: mount -o remount,rw -t ext4 /dev/block/mmcblk0p3 system/ What am I doing wrong. System shows up as mounted rw when checking with cat /proc/mounts
Well, that basically works for me, but unless you did a typo on the "system/" only in the forums you got it slightly wrong.
su
mount -o remount,rw /dev/block/mmcblk0p3 /system
Click to expand...
Click to collapse
You don't need the "-t ext4" option.
Do I need busybox? It wasn't a typo. I get "permission denied" when I try to push the file. Not "access denied" as in the name. If it makes any difference. I have tried to cp from adb shell also. Same problem.
After installing busybox all went fine.

Problem with Relaunch

The device in question is Nook Simple Touch, rooted with NookManager.
I had deleted Relaunch.apk ver. 1.3.8 in order to install newer version.
But after de-installation, iam unable to charge the folder with apps....
How to install Relaunch again ?
gsms said:
The device in question is Nook Simple Touch, rooted with NookManager.
I had deleted Relaunch.apk ver. 1.3.8 in order to install newer version.
But after de-installation, iam unable to charge the folder with apps....
How to install Relaunch again ?
Click to expand...
Click to collapse
So, basically you are without an Android launcher or file manager?
If you made a backup with NookManager, restoring it is your best bet. If not, make sure to do so once this is sorted out. Backup early and often.
Do you have wireless ADB working? You can install (or reinstall) apps that way. Or, if you have the Market working, install any file manager that will work. That will give you access to folders again and you can copy over apps via USB and then use the file manager to install them.
I have installed adb thru usb, but now have other problem.
Trying to copy file(s), it gives me message ,that folder is read-only.
What is exact command to mount folder as read-write in adb shell ?
I tried many times - with no success...
non working-
adb remount /system/
adb remount
adb remount root/system/
and so on.................................
Please help
gsms said:
The device in question is Nook Simple Touch, rooted with NookManager.
I had deleted Relaunch.apk ver. 1.3.8 in order to install newer version.
But after de-installation, iam unable to charge the folder with apps....
How to install Relaunch again ?
Click to expand...
Click to collapse
Have you tried downloading the Relaunch.apk file via a web-browser? Once the download is completed you should get a prompt on whether you want to install it.
---------- Post added at 04:27 PM ---------- Previous post was at 04:19 PM ----------
gsms said:
I have installed adb thru usb, but now have other problem.
Trying to copy file(s), it gives me message ,that folder is read-only.
What is exact command to mount folder as read-write in adb shell ?
I tried many times - with no success...
non working-
adb remount /system/
adb remount
adb remount root/system/
and so on.................................
Please help
Click to expand...
Click to collapse
To mount /system as read+write:
Code:
adb shell
mount -o rw,remount /dev/block/mmcblk0p5 /system
exit
After you're done with copying over the desired file into /system, just reboot the nook to revert the mounting back to read-only.
After typing the first 2 rows of the code :
adb shell
mount -o rw,remount /dev/block/mmcblk0p5 /system
i receive message:
Usage: mount [-r] [-w] [-o options] [-t type] device directory
So this row
"mount -o rw,remount /dev/block/mmcblk0p5 /system" is not correct....?
upd1:
i was able to see the permissions for folder /system
drwxr-xr-x
This means :
(755) — The owner has read, write and execute permissions; the group and others can only read and execute.
This is strange, because iam the owner...
gsms said:
After typing the first 2 rows of the code :
adb shell
mount -o rw,remount /dev/block/mmcblk0p5 /system
i receive message:
Usage: mount [-r] [-w] [-o options] [-t type] device directory
So this row
"mount -o rw,remount /dev/block/mmcblk0p5 /system" is not correct....?
Click to expand...
Click to collapse
The mount command line I provided is the correct command for your purpose. Note that the command is to be entered on the NST itself after you get on it using "adb shell" command.
upd1:
i was able to see the permissions for folder /system
drwxr-xr-x
This means :
(755) — The owner has read, write and execute permissions; the group and others can only read and execute.
This is strange, because iam the owner...
Click to expand...
Click to collapse
The folder permission 755 is inoperative since the filesystem itself is still being mounted read-only.
gsms said:
After typing the first 2 rows of the code :
adb shell
mount -o rw,remount /dev/block/mmcblk0p5 /system
i receive message:
Usage: mount [-r] [-w] [-o options] [-t type] device directory
So this row
"mount -o rw,remount /dev/block/mmcblk0p5 /system" is not correct....?
upd1:
i was able to see the permissions for folder /system
drwxr-xr-x
This means :
(755) — The owner has read, write and execute permissions; the group and others can only read and execute.
This is strange, because iam the owner...
Click to expand...
Click to collapse
I have been able to successfully achieve this with this command:
mount -o remount rw /system
The command is simpler and thus I am less likely to make a typo.
Thanks for your entries, but i already re-rooted my Nook.
I was out of nerves to deal with adb shell....
----------------
But using "mount" command thru adb shell could be very helpful in some critical cases....
gsms said:
Thanks for your entries, but i already re-rooted my Nook.
I was out of nerves to deal with adb shell....
----------------
But using "mount" command thru adb shell could be very helpful in some critical cases....
Click to expand...
Click to collapse
Make a backup

Mounting error

Hi,
I am unable to edit build.prop (flashing B15 and B13-chinese bootstack enabled nav bar - I want to remove it) as I can not mount /system as RW. When doing so, either via Terminal, ADB Shell or simply a file explorer app, I generally get a "Device busy" error or some other random error.
I have tried those commands so far in Shell:
mount -o remount,rw /system
mount -o remount,rw -t ext4 /dev/block/bootdevice/by-name/system /system
All commands have been tried on the three available kernels.
Any help is much appreciated!

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