Android P, failed to mount /vendor, /dev/block/dm-5 is read only

本文详细介绍了在Android P设备上遇到dm-verity导致无法读写vendor分区的问题及解决方案。作者尝试了adb disable-verity命令,但在某些情况下需要进入fastboot模式解锁设备。最终通过在u-boot中禁用SELinux成功解决了问题。

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I tried to mount -o remount,rw /vendor on android P with user-debug build, and I got the feedback 'failed to mount /vendor, /dev/block/dm-5 is read only'.

I searched and it looks like dm-verity is in effect, so I tried the following cmd:

adb root

adb disable-verity  //if this cmd failed, you need try 'adb reboot bootloader->fastboot flashing unlock' 

adb reboot

adb disable-verity

adb reboot

Now, it still didn't work.

Then I tried to disable selinux in uboot. It worked.

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