Oops, wrong partition map scheme (and SD suggestion)

[knutsen]

It seems I chose the wrong Partition Map Scheme for my newest Firewire drive (see attached), and now I can't resize/add partitions.

What I have at present are two partitions: "Bootable Tiger" (my last Tiger backup; I may be kidding myself that it's bootable, given that this drive is MBR) and "Flux Capacitor" (for Time Machine; "it's what makes time travel possible"). I want to split the latter in two so I can have a "Bootable Leopard" backup as well.

I think that my only recourse is the following:

1) Whittle "Flux Capacitor" partition down to size by throwing out old backups (I just learned how to do this w/the Action menu in TM; very cool)
2) Back up both partitions to my network drive (ReadyNAS; not shown)
3) Reformat, repartition (as GUID) & restore

Step two is in progress; someone please stop me if there's a simpler way!

BTW, Dave: given that there's a TM feature that lets me get rid of old backups on demand, perhaps there's an API for the same thing? That might help answer the problem I've seen discussed here where SuperDuper might fail to back up to a sparse image on a TM drive if the drive is too full. You could provide an option for SD to automatically free "enough" space for the backup to succeed.