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- #! /bin/sh
- ### BEGIN INIT INFO
- # Provides: umountnfs
- # Required-Start: sendsigs
- # Required-Stop:
- # Default-Start: 6
- # Default-Stop:
- # Short-Description: Unmount all network filesystems except the root file system.
- # Description: Also unmounts all virtual filesystems (proc, devfs, devpts,
- # usbfs, sysfs) that are not mounted at the top level.
- ### END INIT INFO
-
- PATH=/usr/sbin:/usr/bin:/sbin:/bin
- KERNEL="$(uname -s)"
- RELEASE="$(uname -r)"
- . /lib/init/vars.sh
-
- . /lib/lsb/init-functions
-
- case "${KERNEL}:${RELEASE}" in
- Linux:[01].*|Linux:2.[01].*)
- FLAGS=""
- ;;
- Linux:2.[23].*|Linux:2.4.?|Linux:2.4.?-*|Linux:2.4.10|Linux:2.4.10-*)
- FLAGS="-f"
- ;;
- *)
- FLAGS="-f -l"
- ;;
- esac
-
- do_stop () {
- # Write a reboot record to /var/log/wtmp before unmounting
- halt -w
-
- # Remove bootclean flag files (precaution against symlink attacks)
- rm -f /tmp/.clean /var/lock/.clean /var/run/.clean
-
- [ "$VERBOSE" = no ] || log_action_begin_msg "Unmounting remote and non-toplevel virtual filesystems"
-
- #
- # Make list of points to unmount in reverse order of their creation
- #
-
- exec 9<&0 </proc/mounts
-
- DIRS=""
- while read DEV MTPT FSTYPE REST
- do
- case "$MTPT" in
- /|/proc|/dev|/dev/pts|/dev/shm|/proc/*|/sys|/var/run|/var/lock)
- continue
- ;;
- esac
- case "$FSTYPE" in
- nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs)
- DIRS="$MTPT $DIRS"
- ;;
- proc|procfs|linprocfs|devfs|devpts|usbfs|usbdevfs|sysfs)
- DIRS="$MTPT $DIRS"
- ;;
- esac
- done
-
- exec 0<&9 9<&-
-
- if [ "$DIRS" ]
- then
- umount $FLAGS $DIRS
- fi
- ES=$?
-
- [ "$VERBOSE" = no ] || log_action_end_msg $ES
- }
-
- case "$1" in
- start)
- # No-op
- ;;
- restart|reload|force-reload)
- echo "Error: argument '$1' not supported" >&2
- exit 3
- ;;
- stop|"")
- do_stop
- ;;
- *)
- echo "Usage: umountnfs.sh [start|stop]" >&2
- exit 3
- ;;
- esac
-
- :
-