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Something is locked and blocking my time machine backup

Hello,


I found an answer to this question from 2023 but it is now closed. And, I have a follow-up question regarding the resolution the problem. First, here is what's happening:


Only in the last couple of days has this error been showing up and I have had my computer set to require a password to wake it up, well for forever, really. And, I recently updated every Apple device I have to its new OS.


I, too, am having issues with Time Machine unable to finishing backups overnight while computer is locked from not being in use after one hour. I only see the error in morning when I first wake it up. note that the backups do complete while I am actively using the computer and it's awake.



The solution given in the previous post from 2023 titled 'Locked files block my time machine backup' was as follows:

"It says some files were unavailable. That could happen for many different reasons, but that message did not specify why.


It says the backup will resume when your Mac is unlocked.


To me, this implies your Mac automatically Locked itself, and refused to transfer any more files.


That could happen if your Mac went to sleep or you have screen locking and password required in:


system preferences > Security & Privacy > General ...

[√] require password after sleep or nnn minutes after screensaver begins.


There may be other more obscure reasons as well."


I have followed the directions to remove a required password to wake the computer, but I really would prefer not to do that. I have also looked what has Full Disk Access and Files and Folders access in Privacy & Security, but I am not sure what I need to grant the access to, as you can't specify Time Machine.


What are the other possibilities for this happening and how can I resolve them?


I greatly appreciate your help and have a great day!


Lisa Atlanta


Mac mini

Posted on Sep 30, 2024 6:48 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 27, 2024 7:20 AM

Paste the following command into Terminal.app and hit Enter:


log show --predicate 'subsystem == "com.apple.TimeMachine"' --info --last 4h|grep "Operation not permitted"


Add the path to the TM exclusion list and the problem should be solved.



[Edited by Moderator]



27 replies

Dec 29, 2024 1:22 PM in response to lisaroser

Well All these solutions are piecemeal. I tried them and got nothing. Mostly because find my was never in my widgets. But I noticed something. I did a Get info on Biome before deleting it and it only had two groups listed. Me, and everyone. Everyone has no access. So I deleted Biome and suddenly it has Me, Staff, and Everyone when recreated. Again everyone has no access. Staff has read only access. So I started checking all the folders that I've seen mentioned and none of them has Staff in the list of who could access it.

I went through my home folder and got info on everything then option clicked +. Then searched staff, added the group and copied permission to all enclosing items. This seems to have worked... For now. We'll see if it still works tomorrow.


At the moment I'm calling this a widespread permissions issue that only Apple can fix, especially since the fix permission utility is gone.

Jan 4, 2025 8:43 AM in response to Stephen_J

My iMac with Sonoma has a Seagate external hard drive as the Time Machine backup disc and it has worked flawlessly for over a year. I have just added a Crucial SSD and, in Time Machine Preferences, selected this as a (second) backup disc. As far as I can see both drives are formatted in exactly the same way. Backups to the Seagate disc has continued as normal but, although a couple of backups have been made to the Crucial SSD, there are still time when the backup stalls because of problem with certain files being unavailable and the iMac needs to be unlocked.


I am at a loss to determine why backups to one drive always work but not always to another drive. Both backup drives are encrypted but have different passwords but I wouldn’t have thought that this would cause any problems. If it is because the iMac goes to sleep, then surely this should affect backups to both drives. Any suggestions would be welcomed.

Something is locked and blocking my time machine backup

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