Android O, failed to mount /system, /dev/block/dm-0 is read only

Question

I try to mount /system in Android O to RW using the command mount -o rw,remount /system, and i got this feedback on terminal dev/block/dm-0 is read-only
*Already in adb root



Any idea? Thanks


— Jeff Pang | Sources

Answer

For debug build, user have to disable-verity at first.



adb root

adb disable-verity

adb reboot

adb remount

adb shell

mount -o rw,remount /system


In order to know build type of your android, in adb shell enter the following command



cat /system/build.prop | grep build.type

— Jeff Pang | Sources

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