[Solved] Time Machine Backups Failing on Mojave

[kramden88]

I installed Mojave the other day on my iMac. Time Machine worked for a couple days but now keeps failing. The error states, "Time Machine could not create a local snapshot to back up from because there was insufficient free space on the source volume(s)." The source volume has 88 GB free. I ran First Aid on the Macintosh HD and it didn't resolve it. Running First Aid on the Time Machine drive, which took around six hours, did finally resolve the issue.

 

[Baldlars]

Glad to hear this ... didn't work for me. But my solution worked, but at a price. I erased my hard drive (losing all my previous backups) and formatted the drive as MacOS Extended (Case Sensitive, Journaled). This has worked for me.

 

[kramden88]

Glad to hear this ... didn't work for me. But my solution worked, but at a price. I erased my hard drive (losing all my previous backups) and formatted the drive as MacOS Extended (Case Sensitive, Journaled). This has worked for me.

Interesting, I might have to do the same because it works most of the time but fails sporadically.

 

[seecoolguy]

Glad to hear this ... didn't work for me. But my solution worked, but at a price. I erased my hard drive (losing all my previous backups) and formatted the drive as MacOS Extended (Case Sensitive, Journaled). This has worked for me.

backups still fail for me

 

[ToddJ]

Did you find a solution to this?

 

[WebHead]

What is the total size of the source volume? 10-15% of free space is recommended.