As several people have suggested, partition your external into 3 volumes using Apple's Disk Utility. However I would suggest using an excellent utility called SuperDuper (as in duplicating). I've found it to be a more dependable utility for cloning drives (compared to CarbonCopyCloner) and can also be used for free. If you pay the $27 shareware fee it allows you to do Smart backups (incremental) and schedule backups. It makes bootable backups (you can boot FireWire drives only, not USB) and is great for restoring a drive, as I had too recently after sending my PowerBook to Apple to have the optical drive replaced. Oddly, they also replaced my hard drive which was working perfectly. -Mark On Nov 14, 2006, at 7:16 PM, Pat wrote: > Okay, I finally broke down and bought a Simple Tech 160 GB external > drive. Until now, I've done all backups on CD's, but now I have > the room to backup my iBook, my TiBook and my iMac all on the same > drive. But, how to do it as they all run different systems. > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/ibook/attachments/20061115/321bc6bb/attachment.html