Red Hat Bugzilla – Bug 250270
umount -l is wrongfully complaing that fs is "not mounted"
Last modified: 2008-06-16 22:01:48 EDT
Description of problem:
When rebooting my PC or doing a poweroff it hangs indefinitely right after the
message "Please Stand by while rebooting the system". Not even a kernel message
about md devices or whatever shows up.
Version-Release number of selected component (if applicable):
How reproducible: 100%
Steps to Reproduce:
1. Enter some nfs4 mount points in fstab
2. Reboot the machine
3. Verify the nfs4 mount points are there
4. Reboot again
5. Nitice the machine hanging right after the message "Please Stand by while
rebooting the system"
If doing a "umount -a -t nfs4" before rebooting the reboot progesses as expected.
Created attachment 160335 [details]
My fstab that may cause the hang
Since a week or so the hang problem is over. In return the reboot sequence now
shows silly messages after "Unmounting NFS filesystems". For every nfs4 mount an
error is raised:
umount: /var/vvpn-devel: not mounted
After tracking down what causes this (netfs->__umount_loop->fstab-decode..) it
appears that "umount -l /var/vvpn-devel" raises this error even though
/var/vvpn-devel is mounted.
rpm shows I installed nfs-utils-1.1.0-1.fc7 at august 1, the day after my
original report. Apparently the new nfs-utils solved the original problem and
introduced as smaller one related to the -l option.
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