Post 11.5.1 update, external TM SSD has errors.

[PinkyMacGodess]

Hit the update this morning, and everything was going great. Until...

'Time Machine can't use the disk'. Whaaaa... Why not?

Got this sequence from Diskutil:

Volume was successfully unmounted.
Performing fsck_apfs -y -x /dev/disk5s1
error: container /dev/disk5s1 is mounted.
File system check exit code is 65.
Restoring the original state found as mounted.
Proble -69842 occurred while restoring the original mount state.
File system verify or repair failed.: (-69842)

Arg... I Googled the issue, and cant find any help. Although not TM seems happy with it? I give up. Anyone had this happen?

 

[Fishrrman]

If it was me (and I realize that you ARE NOT "me"), I'd just erase the backup and "start over" fresh...

 

[PinkyMacGodess]

If it was me (and I realize that you ARE NOT "me"), I'd just erase the backup and "start over" fresh...

I tried that. It wouldn't let me. It seems to be working now, but why, I haven't got a clue. I will be checking to see if it really is backing up anything. It was just weird. A possible bug in the update? Did they change the Time Machine app?