nfs (samba, cifs): getting shares to umount @ shutdown

[bwh1969]

This is NOT very elegant, but I used two ubuntu scripts: one in the /etc/init.d/ and one in /lib/init.

The issue, if I mounted shares in terminal and forgot to umount them, then the machine would hang and not shut down. I knew this was an issue with earlier 'buntus so I assumed it was the same issue.

Pnethood is a great too for mounting shares, and might solve this issue BUT if I mounted shares that way, the mounted folders were invisible to any applications except file managers and wine programs (how odd, but I get this on two machines running two different puppies.

I modified "umountnfs.sh" slightly as when I ran it, there were was an fstab command in the file, and the file needed to call another one in /lib/init. There is no /lib/init in puppy so I created it.DON'T FORGET TO MAKE THESE TWO FILES EXECUTABLE.

Put this in /etc/init.d and name it umountnfs

Code: Select all

#! /bin/sh
### BEGIN INIT INFO
# Provides:          umountnfs
# Required-Start:
# Required-Stop:     umountfs
# Should-Stop:       $network $portmap nfs-common
# Default-Start:
# Default-Stop:      0 6
# Short-Description: Unmount all network filesystems except the root fs.
# Description:       Also unmounts all virtual filesystems (proc, devfs,
#                    devpts, usbfs, sysfs) that are not mounted at the
#                    top level.
### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/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

	#
	# Make list of points to unmount in reverse order of their creation
	#

	exec 9<&0 </etc/mtab

	DIRS=""
	while read -r DEV MTPT FSTYPE OPTS REST
	do
		case "$MTPT" in
		  /|/proc|/dev|/dev/pts|/dev/shm|/proc/*|/sys|/lib/init/rw)
			continue
			;;
		  /var/run)
			continue
			;;
		  /var/lock)
			continue
			;;
		esac
		case "$FSTYPE" in
		  nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs)
			DIRS="$MTPT $DIRS"
			;;
		  proc|procfs|linprocfs|devfs|devpts|usbfs|usbdevfs|sysfs)
			DIRS="$MTPT $DIRS"
			;;
		esac
		case "$OPTS" in
		  _netdev|*,_netdev|_netdev,*|*,_netdev,*)
			DIRS="$MTPT $DIRS"
			;;
		esac
	done

	exec 0<&9 9<&-

	if [ "$DIRS" ]
	then
		[ "$VERBOSE" = no ] || log_action_begin_msg "Unmounting remote and non-toplevel virtual filesystems"
		umount $FLAGS $DIRS
		ES=$?
		[ "$VERBOSE" = no ] || log_action_end_msg $ES
	fi
}

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

:

Then create folder /lib/init and put this file there (call it var.sh):

Code: Select all

#
# Set rcS vars
#

[ -f /etc/default/rcS ] && . /etc/default/rcS || true

# check for bootoption 'noswap' and do not activate swap
# partitions/files when it is set.
if [ -r /proc/cmdline ] && grep -qw 'noswap' /proc/cmdline ; then
    NOSWAP=yes
else
    NOSWAP=no
fi

# Accept the same 'quiet' option as the kernel
if [ ! -e /proc/cmdline ] || egrep -qw 'quiet' /proc/cmdline ; then
    VERBOSE="no"
fi

# But allow both rcS and the kernel options 'quiet' to be overrided
# when INIT_VERBOSE=yes is used as well.
[ "$INIT_VERBOSE" ] && VERBOSE="$INIT_VERBOSE" || true

Lastly, call the file in /etc/rc.d/shutdown
I put this near the top of the file, as the first command right after the intro commented lines:
/etc/init.d/umountnfs