You should find exactly which command hangs.Thinking Outside the Well <rod rook gmail com> wrote:
> I am using Fedora 10 and LVM. Lately when I shut down or restart the Linux
> box, it hangs at the stage of "Unmounting file system".
> - Turning off swap --- OK
> - Turning off quotas --- OK
> - Unmounting pipe file system --- OK
> - Unmounting file system --- hangs up
> Although I can turn off or restart the box manually, I am a bit concerned
> whether it is the beginning of more serious problems later.
> Your suggestion will be greatly appreciated.
It might be as simple as a fs that it cannot umount because it's busy.
Or maybe something like Fedora trying to umount a network file system after the network has been shut down.
In doubt, check the health of your disk with fsck, badblocks and smartmontools.
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