The shutdown bug is being discussed here : https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/211631?comments=all, but there's no fix as yet. The umountcifs.sh script does still work, but as I say, Network Manager drops the WIFI connection far, far too early in the shutdown process for it to have any impact. Seems to be a change from Jaunty to Karmic in how the shutdown scripts are processed - possibly upstart related, since even running umountcifs in K01 is quick enough.
The shutdown bug is being discussed here : https:/ /bugs.launchpad .net/ubuntu/ +source/ network- manager/ +bug/211631? comments= all, but there's no fix as yet. The umountcifs.sh script does still work, but as I say, Network Manager drops the WIFI connection far, far too early in the shutdown process for it to have any impact. Seems to be a change from Jaunty to Karmic in how the shutdown scripts are processed - possibly upstart related, since even running umountcifs in K01 is quick enough.