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How to restore SSD from Time Machine? "Error 49245"

I'm trying to restore my MacBook's internal SSD from a Time Machine external drive. I have two backups onto two external drives (to be safe). My steps are:


  • Open Disc Utilty.
  • Select "Macintosh HD" (my MacBook's internal SSD).
  • Click "Restore."
  • Select one of the Time Machine external drives from the dropdown menu.
  • Click "Restore."
  • Disc Utility says "The operation couldn’t be completed. (OSStatus error 49245.)"


This happens with both Time Machine external drives.


Disc Utility shows two internal SSDs:

  • Macintosh HD (APFS)
  • Macintosh HD - Data (APFS Case-sensitive)

Both images show 181GB (out of 256GB) used.

I get the same error restoring to either Macintosh HD or Macintosh HD - Data.


I ran First Aid on both Macintosh HD and Macintosh HD - Data.


I'd like to reformat the internal SSD as APFS (not case-sensitive).

When I erase "Macintosh HD" the operation completes successfully.

When I erase "Macintosh HD - Data" I get this error:


"The volume “Macintosh HD - Data” on disk1s5 couldn’t be unmounted because it is in use by process 69 (fseventsd)

Couldn’t unmount disk. : (-69888)"


Maybe process 69 is what's stopping the restore as well as the erase? What is process 69 and how do I stop it?



Posted on Dec 29, 2021 7:55 AM

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Question marked as Top-ranking reply

Posted on Dec 29, 2021 8:16 AM

If you have an Intel Mac follow this:


https://support.apple.com/en-us/HT208496


If you have an M1 Mac, follow this:


https://support.apple.com/en-us/HT212030


Follow the instructions at the bottom to install a new MacOS after doing the erase.


Then on the first boot up, follow the on screen instructions for Migrating from your Time Machine backup.

Similar questions

5 replies
Question marked as Top-ranking reply

Dec 29, 2021 8:16 AM in response to Thomas Kehoe

If you have an Intel Mac follow this:


https://support.apple.com/en-us/HT208496


If you have an M1 Mac, follow this:


https://support.apple.com/en-us/HT212030


Follow the instructions at the bottom to install a new MacOS after doing the erase.


Then on the first boot up, follow the on screen instructions for Migrating from your Time Machine backup.

How to restore SSD from Time Machine? "Error 49245"

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