How to unmount a stale NFS mount that fails to unmount with 'device is busy' after network disconnectivity?
Temporarily losing network connection to the NFS Server some times causes the NFS client mount to go stale.
Standard attempts to
umountfails with the
umount: /mnt/nfs: device is busywhen using any of the following commands:
# mount -t nfs -o remount /mnt/nfs # umount /mnt/nfs # umount -f /mnt/nfs # umount -l /mnt/nfs # umount -lf /mnt/nfs
- Red Hat Enterprise Linux (RHEL)
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