I'm confused-- I booted from a ubuntu cd and selected the "try ubuntu" option. As I understand it, this is the new "live cd" style.
I then try to check my HDD using
fsck and it says that
/dev/sda is in use.
I think, ok, well let's unmount it and issue
umount /dev/sda/ -- and it says
/dev/sda is not mounted.
What's up with that? I thought that if the disk was unmounted then how could it be in use? Why can't I check it?