Verify of disk failed with error

AlexWilMac

Moderator
I tried to verify my disk something I surely did sometimes in the past. The first time was from OBH 5.0.005 in OMB and I got an error (same to the 2nd picture attached) and so I though it was a problem to launch it if running from OMB.
So I booted from flash (OBH 4.4.023) and I got the same two errors.

I tried to deactivate timeshift and then send command
umount /dev/sda1

but I got the error

umount: can't unmount /omb: Device or resource busy

The same busy status by

fsck -a /dev/sda1

So, it seems impossible to perform this check, either by command line or by GUI.
 

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