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10.5: Repair Time Machine can cause problems
Authored by: PaoloSX on Feb 17, '08 05:54:29AM

This hint worked (almost) perfectly...
In my case, I also had to change the name of the machine by renaming the Directory
sudo mv <old machine name> <new machine name>
after this and the remount of the drive Time Machine showed all the history.

BUT...

I had used TM on a machine where I had previously installed Leopard including using the migration assistant to transfer users from Tiger. On another post this topic is covered with a method for replacing the GROUP that gets lost in this migration process. Now on the newest machine, I'd already followed those instructions to replace the unknown "?" group with the standard Leopard group "staff". When I called up the Time Machine, I could see in the history that the group information from the older backups didn't match my current settings. I'm relatively sure that this is the reason why TM then tries to backup practically all files fully instead of incrementally, since the access to the previous backup is denied.

Comments appreciated - Does Apple know about this?



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