Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

12 points

Time Machine backup fails in macOS 10.13.3 (High Sierra)

I have a Macbook Pro running macOS High Sierra 10.13.3 which stopped being able to do a Time Machine backup on two distinct network shares. One of those server is running macOS 10.13.3 and the other is a Synology DS218+. Backups were running fine before the upgrade.

I also have a Macbook, which is still running 10.13.2 which is able to back up to both of these network shares.

Thus I suspect an issue with 10.13.3.

Anyone has got the same issue?

MacBook Pro with Retina display, macOS High Sierra (10.13.3)

Posted on Feb 3, 2018 7:58 AM

Best reply

fil000 Author

Level 1

12 points

Posted on Feb 5, 2018 8:10 PM

And answering my own question, hopefully it can help. The problem seemed to be with the backup drives (both of them) being still mounted. So at the terminal, I unmounted all drives that had to do with backups and then removed the leftover mount points in /Volumes.

mount -a

sudo umount /Volumes/{backup drive name here}

sudo rm /Volumes/{backup drive name here} (as long as the drive has been unmounted)

Links that pointed me to the solution:

smb - Adding a Time Machine destination fails with OSStatus error 17 - Ask Different

How to forceably unmount stuck network share in Mac OS X? - Super User

View in context

Time Machine backup fails in macOS 10.13.3 (High Sierra)

Similar questions