[Q] Kitkat 4.4 Unable to mount system as read-write - Nexus 7 Q&A, Help & Troubleshooting

Upgraded from factory rooted image of 4.3 to the OTA KRT160 I was able to get this rooted and the bootloader has been unlocked.
Cannot mount /system as r/w from either ROM Pro toolbox or ES Files Explorer. 4.3 has no such issues. Anyone else having these problems or know a way to mount this. I want to update my hosts file and a few other things.
Edit: This method works, just not any apps
adb shell
$su
#mount -ro remount,rw /system
make changes in shell
#mount -ro remount,ro /system

zosimov21 said:
Cannot mount /system as r/w from either ROM Pro toolbox or ES Files Explorer. 4.3 has no such issues. Anyone else having these problems or know a way to mount this. I want to update my hosts file and a few other things.
Edit: This method works, just not any apps...
Click to expand...
Click to collapse
Tried that on a rooted Moto X...still no joy. Among other things, it's keeping AdAway from installing.
Edit: I eventually found MotoWpNoMo, which fixed my problem. It permanently removes write protection from /system. Maybe there's something similar for your device.

I had an issue with read write in es. You have to not only slide the root explorer option to on but also tap on root explorer text to change system to r/w. Hope this helps

phatscientist said:
I had an issue with read write in es. You have to not only slide the root explorer option to on but also tap on root explorer text to change system to r/w. Hope this helps
Click to expand...
Click to collapse
Man I've been looking for your tip 2 days. And here you go. Awesome. Same thing with H/K LiveStage sound buried under option line.

Related

[Q] Unable to delete/move shutdown/startup WAV file after JID6 update

I updated JID6 using ODIN
Rooted using OCLF One click
Using Root Explorer I am unable to modify these files after JID6 update.
Previously i was able to move/delete these files. Not anymore.
Current Permission is rw-r--r--
I tried to modify my permsission, but it does not permanently apply. Does anybody else have this problem.. Even after its been rooted, i can't make these permission changes therefore i can't move/delete these files.
Bootup: system/etc/PowerOn.wav
Shutdown: system/media/audio/ui/Shutdown_128.ogg
Did you remount /system rw?
busybox mount -o rw,remount /system
samlot said:
I updated JID6 using ODIN
Rooted using OCLF One click
Using Root Explorer I am unable to modify these files after JID6 update.
Previously i was able to move/delete these files. Not anymore.
Current Permission is rw-r--r--
I tried to modify my permsission, but it does not permanently apply. Does anybody else have this problem.. Even after its been rooted, i can't make these permission changes therefore i can't move/delete these files.
Bootup: system/etc/PowerOn.wav
Shutdown: system/media/audio/ui/Shutdown_128.ogg
Click to expand...
Click to collapse
I have the exact same problem. I posted a thread pretty much identical to this one. Still no answer...
busybox mount -o rw,remount /system
worked for me. Once remounted I could rename the startup/shutdown sounds.
Thanks guys for responding, Thats it. Once I installed Busy Box i was able to move those files again. I guess after the JI6 update, it removes your previously installed busy box. I coulda swear i had busy box already installed when i was using titanium backup. But then I remember i had to Re-Root the phone as well.
rmeden said:
busybox mount -o rw,remount /system
worked for me. Once remounted I could rename the startup/shutdown sounds.
Click to expand...
Click to collapse
So just to be clear....type that string exactly as shown into terminal on the phone and that's it? Then I can delete (not rename) the sound files?
yes. you should have needed to do it the first time, too... /system is always mounted read-only.
and you also need a root shell (su)
chui101 said:
yes. you should have needed to do it the first time, too... /system is always mounted read-only.
and you also need a root shell (su)
Click to expand...
Click to collapse
Sweet! That worked for me! I had to change back to the samsung keyboard because everytime I used the , key in terminal SwiftKey would crash.
No more obnoxious startup/shutdown sounds! Woooo hoooo! Made my Friday!

Cannot get r/w access in /system with new froyo release

Since updating to the new froyo I have root, but I cannot get root explorer to be able to access /system in any way possible, it reads it but cannot write/modify.
I have replaced every root file with a new version, even tried the /system on boot set to r/w method with that market app. Its getting frustrated as this has ALWAYS worked before.
Did you come from voodoo?
Sent from my SCH-I500 using XDA App
I had a lot of trouble with Root Explorer as well. Super Manager has worked much better with the r/w access.
Sent from my SCH-I500 using XDA App
I'll give it a shot using that other app and see what happens.
That app still only has r/o access. Super user isn't granting my phone r/w access for /system.
Ev3rM0r3 said:
Since updating to the new froyo I have root, but I cannot get root explorer to be able to access /system in any way possible, it reads it but cannot write/modify.
I have replaced every root file with a new version, even tried the /system on boot set to r/w method with that market app. Its getting frustrated as this has ALWAYS worked before.
Click to expand...
Click to collapse
You positive you still are root? Try the root process again just for ****s and giggles...
Run one of the following with your phone connected to your computer and try again.
Voodoo:
Code:
adb shell mount -o remount,rw -t ext4 /dev/block/stl9 /system
Non-Voodoo:
Code:
adb shell mount -o remount,rw -t rfs /dev/block/stl9 /system
Yes, I'm getting this too.
Not only this. I use android commander to see what's in the folders.
While I'm in CWM in the phone, Android Commander shows only one folder in /system. That folder is /system/etc. This might explain why I can't flash anything into my phone to save my life. Anyone know what could be causing this?
It's odd because when my phone boots up, Android Commander shows /system will all of it's glory...
ev3rm0r3 said:
since updating to the new froyo i have root, but i cannot get root explorer to be able to access /system in any way possible, it reads it but cannot write/modify.
I have replaced every root file with a new version, even tried the /system on boot set to r/w method with that market app. Its getting frustrated as this has always worked before.
Click to expand...
Click to collapse
and don't double post!!!
http://forum.xda-developers.com/showthread.php?t=955487
I have the exact same issue. Just talked it over with Adrynalyne.
You are going to have to download an All-In-One Odin Package such as
http://forum.xda-developers.com/showthread.php?t=867648
Then, you're going to have to start over and flash your CWM Recovery from jt
http://forum.xda-developers.com/showthread.php?t=942021
Then you Odin flash the modem of the ROM that you want to install, then you use CWM to flash the ROM that you want to install...
Make sure that you do to not flash using Phone. Use PDA option in Odin.
Apparently, it's a corrupt dbdata partition that is causing it. This can happen occasionally when installing VooDoo... Just another reason to stay away from VooDoo...
BTW, Is this working for you? I think it's working for me as of yet. I'm not done yet so I can't assure you yet.
I don't think is working for me... If it worked for someone else let me know. I don't know what happened.
Re-establishing ROOT using CWM with Adrynalyne modified ChainsDD superuser +busybox package from the link below...
http://forum.xda-developers.com/showthread.php?t=913470
I just installed root explorer and set my system to RW, I can see it all the way through in ADB. Then I re-locked it in root explorer.

rooted but cant change readonly permissions

my /system folder is read only and i was trying to change permissions to r/w with yaffs explorer but i keep getting error "unable to chmod /system -read only file system
i can change permissions for other folders in the same directory. any thoughts on a fix
The same as root explorer?try opening superuser to see whether it is permission granted
i had this problem with root explorer before and i read that i needed to update to the latest version which fixed my problem, perhaps the same for whatever app you were using
I tried re- rooting, the app has root access and I have the latest app, i even cleared tbe app data and reinstalled. this happend afyer I updated to gingerblur 3.5. think the rom could be the issue?
I have the same problem. I'm trying to edit a file but it is only read only. I am also rooted using gingerblur 3.5
Sent from my MB860 using XDA App
going back to gingerblur 3.1 and see if that fixes it. i will report back shortly
so going back to 3.1 and installing an older version of yaffs explorer did not work
i found busybox installer from the marker and installed that and then installed the default busybox v1.19 and now i was able to write to /system/app again so i can install my app.
give that a shot
You have to mount the filesystem as read/write:
mount -o rw,remount /dev/block/mmcblk0p12 /system

[Q] Problem changing gps.conf file

I have rooted and installed CWR. I have Supperuser installed also. When I try to change the gps.conf file to point to us.pool.ntp.org, I get an error saying the that /system is read only. Any ideas on how to fix this?
You need to mount /system as read/write before you can write to it.
In Root Explorer, you can click the R/W (or R/O) button at the top to enable writing.
I tried that and it say the file has been saved. However when I open the file again the changes are not there.
From my post the other day at forums.lenovo.com--
Best: ES File Explorer (with root permission and /system writeable checked in settings)
Navigate to file, click, choose text, choose ES Note Editor, edit the file as needed, choose save when prompted.
You can change permissions with ES as well.
I like that it automatically makes a *.bak file of whatever you edit and save.
I have tried changing the permission using root explorer, which resulted with this error "Permissions change was not successful. Please not that some file systems(eg SD card) do not allow permission changes. " I also tried using ES File Explorer but it still will not allow me to edit or delete the file.
@dwilli40 - Did you set root permission and /system writeable in ES settings?
Yes, I did enable root permission and /system writeable in ES settings.
I had a similar Problem on my device, seems that the normal mount doesn't work always. In my case i got write permission with:
busybox mount -o rw,rewrite /system
Sent from my ThinkPad Tablet using XDA App
if you don't know how to do it manually, use a app !
fasterfix for example....
if it doesn't work, it means that you don't have root
Thanks quyTam . That one did it for me.
Any way to do this without recovery?
It's absolutely no need for recovery !
But root is needed.
I was thinking it did because I couldn't get /system to stay mounted as rw under adb shell or with total commander
What should I be doing?
GPS Monitor Premium is able to do this, too, and more. It's a little heavier, but I don't feel like I need GPS Test anymore. It's a slick little app, and the dev is very kind.
MrKwatz said:
I was thinking it did because I couldn't get /system to stay mounted as rw under adb shell or with total commander
What should I be doing?
Click to expand...
Click to collapse
are you root ?
Did the GPS change you made work? Is you tablet actually grabbing satellites over North America?
Sent from my ThinkPad Tablet using xda premium
quyTam said:
are you root ?
Click to expand...
Click to collapse
Yes.
If I mount from adb shell su and then exit (after checking mount) for adb push it does not retain rw.
Doing the mount command from Total Commander fails. Checking the box to mount /system from ES File Explorer does nothing.
Yes, the change to gps made a huge difference. I went from taking 5 minutes or more to find my location to almost instantly.
dwilli40 said:
Yes, the change to gps made a huge difference. I went from taking 5 minutes or more to find my location to almost instantly.
Click to expand...
Click to collapse
Did you change the gpsconfig.xml file in /system/etc/gps folder? And if you did, which line(s) did you edit? I'm looking at the file in Notepad++ just trying to comb through it all and I don't see us.pool.ntp.org or asia.pool.ntp.ord anywhere..
Thanks
---
Never mind, just found the gps.conf file in the root of /etc. FasterFix did indeed change the Asian setting to a north-american.pool.ntp.org. I'll give this a try today, and if it can't find me in under 3 minutes, i'll try changing it to us.pool.ntp.org and see if that makes a difference.

[Q] Busybox

Does anyone know where to get the busybox binary that will work on the nexus 10? Also, how do you manually copy it to the system folder? I'm rooted and on the stock ROM. File explorer used to have an option to remount a partition in read write mode but am not seeing this option now. Anyone know the syntax to remount the system partition with write? I have root and can get shell on the file system.
TIA
cowabunga said:
Does anyone know where to get the busybox binary that will work on the nexus 10? Also, how do you manually copy it to the system folder? I'm rooted and on the stock ROM. File explorer used to have an option to remount a partition in read write mode but am not seeing this option now. Anyone know the syntax to remount the system partition with write? I have root and can get shell on the file system.
TIA
Click to expand...
Click to collapse
You can grab busybox off the market, things like esFile explorer , root explorer, has options to remount RW , or you could just install a custom manta kernel ..

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