Hello, all!
I'm trying edit a file in /etc/ and adb says 'Failed to copy: Read-only filesystem'
Now, is this actually true? Or is this simply a permissions issue? I'm doing this on a non-rooted phone, so I can't 'touch' anything without permission errors, but is it a futile task if the filesystem is read only anyway?
I'm trying to do this from a non-rooted environment as I had intended on making this into an application, but I imagine that if I can't touch or push these files from an adb shell then I won't be able to from the application space either.
It's frustrating not to be able to edit the filesystem of my own phone, I'll be rooting if this is just a permissions problem and not an issue of a non-writable filesystem. Perhaps I could still make an application for rooted-only phones.. hrm..
Any thoughts on this?
/etc is an alias for /system/etc, and /system is a partition mounted as ro (you can confirm this yourself by running mount)
Ah, bugger. So this is hopeless (without modifying and then reflashing)?
Thanks very much.
you need to mount it read write,
mount -oremount,rw /dev/block/mtdblock3 /system
then it will be read/write
try adb remount. if it failes you need root sorry.
Hello, i have the same error and I have root. i have tried adb remount and the mount -oremount,rw /dev/block/mtdblock3 /system
still dotn work. I want to move a script to /
so i only have to type sh debian.sh
nvm I figured it out. i just put it on system and then just type sh debian.sh on the terminal and it works
Rafase282 said:
Hello, i have the same error and I have root. i have tried adb remount and the mount -oremount,rw /dev/block/mtdblock3 /system
still dotn work. I want to move a script to /
so i only have to type sh debian.sh
Click to expand...
Click to collapse
what is the error message? saying it dont work doesnt provide enough info for us to help....
it says sh: cant open aw.sh
so i still have to put the path or cd to where the file is. Is there a way to make /system my home?
no you cant make system your home, system is system, home is home. you can make a symlink if you are familiar with linux - might want to read up about shell commands
korndub said:
you need to mount it read write,
mount -oremount,rw /dev/block/mtdblock3 /system
then it will be read/write
Click to expand...
Click to collapse
Thanks it really worked!! for me i had the same problem as the other guy.
Rafase282 said:
Hello, i have the same error and I have root. i have tried adb remount and the mount -oremount,rw /dev/block/mtdblock3 /system
still dotn work. I want to move a script to /
so i only have to type sh debian.sh
nvm I figured it out. i just put it on system and then just type sh debian.sh on the terminal and it works
Click to expand...
Click to collapse
You *CAN'T* modify the / filesystem. It is part of your BOOT partition, which CANNOT be remounted rw. You would have to read, modify, and write the boot partition.
Rafase282 said:
Hello, i have the same error and I have root. i have tried adb remount and the mount -oremount,rw /dev/block/mtdblock3 /system
still dotn work. I want to move a script to /
so i only have to type sh debian.sh
nvm I figured it out. i just put it on system and then just type sh debian.sh on the terminal and it works
Click to expand...
Click to collapse
Maybe you're typing it in too literally. It should actually read like this:
mount -o remount,rw /dev/block/mtdblock3 /system
There was a typo with -oremount, there should be a space after -o.
Hope that helps.
PS. That command worked for me on a device where everything else failed.
dhkr123 said:
You *CAN'T* modify the / filesystem. It is part of your BOOT partition, which CANNOT be remounted rw. You would have to read, modify, and write the boot partition.
Click to expand...
Click to collapse
actually, / can be mounted rw, but changes are lost on reboot
new user
Firerat said:
actually, / can be mounted rw, but changes are lost on reboot
Click to expand...
Click to collapse
Hi I have my Asus Prime rooted and installed a virtuous Rom and I tried to put a fonts on the System/ fonts folder using root explorer using a instructions to fix some error on some games that need that tis fonts exist on the tablet but it said it cant because file system is read only I'm new and I don't know how to do this commands any help on how to do in a easy (explained) form.
egalpr said:
Hi I have my Asus Prime rooted and installed a virtuous Rom and I tried to put a fonts on the System/ fonts folder using root explorer using a instructions to fix some error on some games that need that tis fonts exist on the tablet but it said it cant because file system is read only I'm new and I don't know how to do this commands any help on how to do in a easy (explained) form.
Click to expand...
Click to collapse
I would recommended not posting in the g1 section. The Asus forums would be a lot more helpful.
egalpr said:
Hi I have my Asus Prime rooted and installed a virtuous Rom and I tried to put a fonts on the System/ fonts folder using root explorer using a instructions to fix some error on some games that need that tis fonts exist on the tablet but it said it cant because file system is read only I'm new and I don't know how to do this commands any help on how to do in a easy (explained) form.
Click to expand...
Click to collapse
Download EStrong File Manager and within the settings of it, enable mounting of the system as read/write.
Or, download Terminal Emulator and type this in:
Code:
mount -o remount,rw /dev/block/mtdblock3 /system
Or, try typing this in terminal/cmd:
Code:
adb remount
Or, if you plan on doing it all from recovery you could do:
Code:
adb shell "mount system"
and then you could do it all from there.
Next time, please post in the proper forum.
Read-Only /system... i just deleted the file, tich push should update/replace and then it worked... only had this bug when i was trying to modify Trebuchet.apk (homescreen)
Hi guys
Not being a linux expert, i'm stuck with the following problem..
i'm using a program who uses low level adb commands to write on the phone extSdCard...
problem: this extSdcard is seen as a readonly filesystem.
What has to be done to make this FS RW instaed of RO ?
This does not happen under windows where I can write to the extSd without problems
thks in advance for the tip
Hi there
My knowledge of Android is very limited, I know a little about Linux from Ubuntu at command promt level, but not enough to fix this issue I'm having. Any help would be much appreciated.
I wish to modify a file which Android is telling me is locked. It's \system\etc\bluetooth\audio.config
I have found a modification to this file which may help me in connecting the Tab to a bluetooth peripheral I have.
I have rooted the Tab
I have installed a root file manager
I have installed a terminal app
I have tried to chmod this file when logged in as su, but this refused so still I cannot edit the file.
I read somewhere about mounting the system folder as rw, but this is a bit beyond my knowledge. So if this is necessary I need walking through this step-by-step.
Could someone please help me by posting some instructions to get me to the point where I can edit the file audio.config?
Many thanks
Gary
su
mount -o remount,rw /dev/mtdblock3 /system
You may still not be able to modify a file so copy it to /mnt/sdcard/file and edit it there and rename the source file when ready to mv it back in.
mount -o remount,ro /dev/mtdblock3 /system
when done.
This worked for me on my new Galaxy Tab Wifi after using A4 to root it.
Hi!
I'm using the Tiamat Custom ROM and am facing the problem, that the external SDcard is mounted on /mnt/external1 and symlinked to /MicroSD. But I'm using an app that needs it mounted on /sdcard-ext.
Now I have remounted / and symlinked /mnt/external1 to /sdcard-ext and that works until my next reboot (the symlink isn't reboot-proof ;-) ). Now I'm searching for a way to automatically create that symlink on each reboot.
Can anyone help me?
Thanks guys!
McDV
Create a script in /etc/init.d to do it.
You'll need to remount / to read+write first though.
PM me if you need help setting this up -- its really easy to do. You need to name your script with a specific run level (I believe).
I've done this on my phone to set up swap partitions and the like. Its really easy!!!
Thanks for your help! I'm quite firm in shell-operations, I just didn't think I could just put a script to /etc/init.d!
I'v created a shell-script named 07sdcard and with the content:
Code:
#!/system/bin/sh
rootrw
ln -s /mnt/external1 /sdcard-ext
rootro
Works geat!
You've got it now -- awesome.
HI,
Could this be a way to mount the external1 as rw at boot ?
See here: http://forum.xda-developers.com/showthread.php?t=1173195
hello
I have a problem
delete the build.prop to modify
and try to put it back I get an error
commands are used to delete build.prop
adb shell
$ su
# Mount -o rw, remount / system
# Rm /system/build.prop
and to try to get him back
adb push
and the result is
failes to copy "build.prop" to "/system/build.prop": Permission denied
if there is a way to introduce build.prop back to your place
and they know it
I would be very grateful!!!!!!!!!!!!!!!! :crying:
Hi, thank you for using XDA Assist. Probably the best thing to do is flash the stock firmware. But i don't know what device you have so can't help you with that.
Thread closed.
Hi all,
because there is actually no persistend root on the Huawei Mate 9 (system modifivations are discarded after reboot) i would like to run system modifications directly after booting the device.
To do that i am going to use tasker.
For example i want to delete the "camera_click.ogg" file to avoid sounds when making photos with WhatsApp.
Using root explorer i only have to tap on mount system r/w and delete the file.
So i tried the following code in the android shell (which can be run within tasker):
Code:
su
mount -o rw,remount /system
rm -f /system/media/audio/ui/camera_click.ogg
But the system is still not writeable! And mountimg via root explorer only works again after a reboot...
Once with a similar code i got an error message like "resource busy".
What can cause this Problem and how can i delete this system file?
(note: i am not so familiar with Linux, only Raspberry Pi knowledge )
Thank you for helping in advance!
It is same dm-verity problem.
You have to modify boot to turn dm-verity off.
5[Strogino] said:
It is same dm-verity problem.
You have to modify boot to turn dm-verity off.
Click to expand...
Click to collapse
Thank you for your answer!
I will try this tutorial:
https://forum.xda-developers.com/mate-9/development/root-root-mate-9-t3556590
Hope it works...