[onlynone]

So, I thought I had come up with a cool solution the the problem I had above, this was my plan:

- userA has a FileVault homedir
- userB has regular homedir
- logout userA, login userB
- previous backup has been done, so userA's sparse image is already on backup drive
- mount userA's sparse image from the internal drive
- mount the backup of userA's from the external drive
- perform smart update from userA's homedir to userA's backup homedir
- unmount both sparse images
- at this point I'd be hoping that both sparse images would be identical
- if they are, perform a normal smart update from my internal drive to my external drive
- if the files aren't identical, just exclude them from the smart update.

This didn't work though, userA's internal sparse image is mounted ok as 'userA', userA's backup sparse image is mounted ok as 'userA 1'. In SuperDuper! I can select the source sparse image, but 'userA 1' is grayed out in the target list.

I tried creating a completely new encrypted sparse image, mounted it, and it was selectable in the target list of drives. Any idea why my plan wouldn't work?