问题
Hi. I have an LG-Optimus HUB E510 Android Device.
Two weeks ago I rooted my device to access internal storage and change some files (such as alarms, notifications, sounds, .etc).
Well I did it. But after re-storing factory settings, internal storage files became again read-only.
Then I tried adb-shell to change the privileges of folders and files with
chmod 777 "folder destination"
but the shell responded as
Unable to chmod system/media/audio/alarms: Read-only file system
Now I don't know what to do. So, I need your suggessions. Thank you.
Pictures
This is the changing permission attempt from shell in ubuntu
The files included with current permissions in eclipse DDMS perspective
回答1:
Try to use one of the following ways:mount -o rw,remount -t rootfs /system
ormount -o rw,remount -t rootfs rootfs /system
You also can use it for any folder that you need even root (/)
回答2:
You can also try this:
adb root
adb remount
and this will also mount /system
来源：https://stackoverflow.com/questions/18918456/android-2-3-read-only-file-system-stuck