It's just a wad of directories on the disk. Have you tried copying the Backups.backupdb to the new drive and changing TM to use that drive? It might be that simple (I don't know for sure - just guessing).I'm curious about this too, since I would like to transition to a different drive for Time Machine backups but wonder if it's possible to switch without losing your old Time Machine backups.
I know this sounds like the logical thing to try, but I'm worried about having to recreate the entire backup if it doesn't work, because the first one took so long to do.It's just a wad of directories on the disk. Have you tried copying the Backups.backupdb to the new drive and changing TM to use that drive? It might be that simple (I don't know for sure - just guessing).
Thanks, looking forward to hearing how it works. If you have trouble, one thing you might try is to browse the copied backup using TM after you select the disk in system prefs. If you right-click on the TM icon in the dock, you'll see an option that says "Browse Other Time Machine disks..." (I don't know why it needs an ellipsis?). I have a feeling that this might alert TM to the fact that a backup is located on the drive. Just an idea.I am curious about this too...has anyone tried this? I am getting a new drive today and have to switch so i'll let you know what happens
Agreed. If TM doesn't automatically recognize the drive as having a TM backup on it, try my suggestion above.I''d say the logical thing to me would be to just simply open TM and change the drive (all available drives will show up in a list).
I assume if you do this your Mac would move the existing backup to the new location for you.
I'd try that before anything else.