android – What does 'adb remount' do? When is it useful?-ThrowExceptions

Exception or error:

Should adb remount always be run before adb push? What does adb remount actually do?

How to solve:

adb remount put /system partition in writable mode. By default /system is only readable.
It could only be done on rooted device.

It must be done before pushing file on /system partition.

adb remount corresponding to:

adb shell mount -o rw,remount,rw /system

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