

That was the point where I thought that the partition area and maybe the whole disk is in read-only mode. The most interesting was that after a direct dd command to disk0 the APFS parameters and partition data was not changed at all. after the terminal commands it looked like the Volume disappeared from diskutil, but after a reboot, everything is like at the beginning.

I have made a complete backup of my disk0 with dd to another disk.Īfter that I have tried to delete and recreate APFS Volumes delete APFS container, but nothing happened in my APFS descriptors. I have made all normal steps, boot disk creation, diskutil first aid, terminal commands. After the last security update from Apple my High Sierra MacBook Pro was not able to boot.

It is somehow write protected for apple tools too. Can not erase or modify any parameter of my internal ssd disk.
