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OS Version: MacOS Ventura 13.2

I got a new MacBook and before I sold my previous MacBook, I created a backup through TM.

Now on the new MacBook I wanted to access the backup of my previous MacBook and faced 'Permissions denied' issues. Digging around, I found out that my previous MacBook had only 1 user (UID 501) and my new MacBook already has two users and personal one has UID 502. I already tried out to use the first user to access the backup and it works - But that's not a long-term solution.

EDIT: The new machine was brand-new. There is one account with id 501 and another account (which is my personal account) with id 502. The first account with id 501 is intentional and must stay as is.

Found How can change broken file permissions of Time Machine backups? and tried to align that to the APFS formatted TM HDD. Unfortunately without success - While I could do the changes in /Volumes/USB_DRIVE_NAME/2023-02-06-162553.previous/ I've seen later that the TM backups are mounted read-only in /Volumes/.timemachine/SOME_UUID/2023-02-06-162553.backup and this is where the TM browser reads from.

Is there any way to fix the permissions for my old TM backup so I can access it again? Maybe somehow possible to mount the 2023-02-06-162553.backup read-write?

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  • By the way, restoring the new MacBook from the old backup is not an option either
    – Hsnbrg
    Feb 8 at 13:57
  • Is the new machine new new, or just new to you (pre-owned but not properly initialised)? Normally if it were a brand new OS install there would only be one user, you, and that UID would be 501. If your UID on your account is 502, then there is an existing user (501), hence the question re. the machine's provenance. I wouldn't try to change the ownership of your backups of the old machine. Try an OS reinstall on the new machine first before trying to restore.
    – Andy Griffiths
    Feb 8 at 14:02
  • The new machine was brand-new. There is one account with id 501 and another account (which is my personal account) with id 502. The first account with id 501 is intentional and must stay as is.
    – Hsnbrg
    Feb 8 at 14:47
  • Understood. Please update the question so the info doesn't get lost in the comments.
    – Andy Griffiths
    Feb 8 at 16:05
  • Thanks Andy, I updated the post
    – Hsnbrg
    Feb 8 at 16:22

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