I also have a LaCie HD that will not unmount.
Even immediately after a restart, even a Safe Boot.
It is partitioned into two; I can unmount one partition, but the other one that I cannot unmount is one to which I made a bootable backup with SD!
I did the
sudo lsof | grep /Volumes/[volumeName]
... but nothing whatsoever came up:
circulation-1:~ techservicesadmin$ sudo lsof | grep /Volumes/ServerHD\ backup\ 1\ of\ 3/
Password:
circulation-1:~ techservicesadmin$
(I thought maybe it wasn't working, so as a test I launched an app from it and did the lsof again, and I did see the process.)
Also, this is Mac OS X Server 10.4.11. But it also won't unmount from a regular Mac OS X client Mac.
Any other ideas why I can't umount the drive?
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