Old Time Machine Backups, new Mountain Lion Install?

scootermaster

Platinum Member
Nov 29, 2005
2,411
0
0
So, I'm guessing this is pretty common, but, I have an old starting-to-get-crufty ML install on my non-SSD hard drive for my MBP. I finally (FINALLY!) took the SSD plunge, and have a new drive coming. I have a number of Time Machine backups, because, y'know, I'm cool like that.

I don't want to restore from one of these, because that'll just continue the cruft (although perhaps I won't notice, given the speed of the SSD). My plan was to do a clean install on the new drive, then manually move over documents from either the old drive (in an enclosure) or my TM backups (via Finder).

The question: What happens if I do that, and then plug my TM drive in to the new install? Will I "lose" my backups? Will it just make new ones? I rarely go back however many months to recover old documents, but you never know, so if all possible, I'd like to keep my current TM backups, but I want a fresh install.

I can't be the only person in this boat, right?

Ideas? Thanks!
 

Mixolydian

Lifer
Nov 7, 2011
14,566
91
91
gilramirez.net
just make sure u set your computers name to exact what it was before and it will work. ive done it before.

do a clean install. set your computers name to the exact same thing it was before you installed the new os (case sensitive) and copy the documents manually from the time bmachien backup. them set up time machine to backup to the same drive as your existing bakcup and it will append new backups onto the existing sparsebundle.

hope that makes sense...