Time Machine backup

I'm running a 2014 mac Mini with Monterey and repeatedly getting this message:

“/.PKInstallSandboxManager-SystemSoftware” could not be backed up.

where should I start to solve this problem?

Thank you

Mac mini, macOS 12.6

Posted on May 17, 2023 02:36 PM

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BDAqua

Level 10

250,007 points

Posted on May 17, 2023 05:30 PM

Start with this...

Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes or more.

Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.

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5 replies

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BDAqua

Level 10

250,007 points

May 17, 2023 05:30 PM in response to kb5555

Start with this...

Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes or more.

Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.

BDAqua

Level 10

250,007 points

May 18, 2023 12:47 PM in response to kb5555

Have you run Disk Utility's Disk First Aaid on both drives?

kb5555 Author

Level 1

4 points

May 18, 2023 11:34 AM in response to BDAqua

Thank you - I gave this a try, but still no back up is able to be completed even in safe mode.

kb5555 Author

Level 1

4 points

May 18, 2023 09:22 PM in response to BDAqua

It took 2 tries on the External disk, but this did the trick.

Thank you!

BDAqua

Level 10

250,007 points

May 18, 2023 09:29 PM in response to kb5555

Great news my friend, take care! :)

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