Lacie Won't Unmount - Applications Running

[gmachen]

OK, I repartitioned a drive with a normal single partition, and it still won't unmount if it contains a SD! bootable backup. So I guess that rules out some peculiarity associated with a two-partitions drive.

It occurred to me that since it was a Mac OS X Server, maybe it was being shared, and that prevented it from being unmounted, despite no open files showing with lsof. But I put the FireWire drive on another Mac with the regular client OS, and it wouldn't unmount there, either.

Now I'm really thinking that a SD! Smart Update of a boot drive may be setting some flag or something that inhibits unmounting. (Recall that I earlier stated that I did a Smart Update to my destination drive's second partition of a data-only HD - no OS on it - and it would unmount.

But then again, if so, why isn't my problem happening to everybody?

H-E-L-P! We're running three rotating backups, and my people can't be shutting down a busy file server, just to unmount a frigging FireWire drive to take off-site.