live-rw isn't cleanly unmounted.
After I finish to work on the live-rw partition (when I've booted debian
wheezy with the 'persistence' parameter) I halt the PC using the 'shutdown
-hH now' command and then I reboot the PC without the 'persistence'
parameter. Then, when I run the fsck command on the live-rw persistence
partition (/dev/sdb2 in my case) it says: "live-rw was not cleanly
unmounted, check forced".
My question is simply: why does fsck say that, and what should I do in
order to unmount the live-rw partition cleanly?