I'm running Voyager 64bit which is basically xubuntu on an 11GB partition.

After installing humble bundle 6 I ran out of space (/ and home on same partition)

I successfully expanded the space with a live boot of gparted last night to 16GB.

Tonight I'm out of space again.

I have an external drive regularly attached that Deluge uses.

I unattached the drive, rebooted, and find part of it still in /media, I guess as much as would fit (properties said 20GB (??))

I probably manually mounted it some time ago when trying to learn how to have it mount automatedly.

How to unmount and just have it mount when attached and not use local space?