I believe I've fixed this in gparted 0.2.5-1.1ubuntu1 in edgy by
correcting the menu index calculations in various places.
** Changed in: gparted (Ubuntu)
Assignee: (unassigned) = Colin Watson
Status: Confirmed = Fix Released
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Unmount and Deactivate not disabled properly
I suspect that the installer-mode patch has broken this by not taking
account of different menu indices in the code that disables the Unmount
and Deactivate options depending on the filesystem type.
** Summary changed:
- shows both Unmount and Deactivate no matter what
+ Unmount and Deactivate