I have a freshly installed ubuntu 12.10 on a HP DM4 laptop.
I saw a few times the following error "mount / is busy" and added a few lines in the umountfs script. These were
killall -9 plymouthd
killall -9 dhclient
killall -9 /sbin/plymouthd
killall -9 /sbin/dhclient
killall -9 dnsmasq
killall -9 /usr/sbin/dnsmasq
ps -Af > /a/ps
lsof > /a/lsof
sync && sleep 30 && sync
However even after this when I shutdown the system via the menu it does not shutdown. Screenshots are attached. It stayed in the same state for atleast 20min.
IMG_20121026_215044.jpg
IMG_20121026_215055.jpg
Bookmarks