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Add a knob to avoid the unmounting of some points.

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This commit is contained in:
Roy Marples 2008-07-09 16:08:38 +00:00
parent 1ca63447c9
commit b83108cd2e
4 changed files with 24 additions and 7 deletions
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2
conf.d/Makefile
View File

@ -1,5 +1,5 @@
DIR= ${CONFDIR} DIR= ${CONFDIR}
CONF= bootmisc fsck hostname local net urandom CONF= bootmisc fsck hostname local localmount net urandom
MK= ../mk MK= ../mk
include ${MK}/os.mk include ${MK}/os.mk

3
conf.d/localmount Normal file
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@ -0,0 +1,3 @@
# Stop the unmounting of certain points.
# This could be useful for some NFS related work.
#no_umounts="/dir1:/var/dir2"

16
init.d/halt.sh.in
View File

@ -4,6 +4,7 @@
. @SYSCONFDIR@/init.d/functions.sh . @SYSCONFDIR@/init.d/functions.sh
. "${RC_LIBDIR}"/sh/rc-functions.sh . "${RC_LIBDIR}"/sh/rc-functions.sh
[ -r @SYSCONFDIR@/conf.d/localmount ] && . @SYSCONFDIR@/conf.d/localmount
[ -r @SYSCONFDIR@/rc.conf ] && . @SYSCONFDIR@/rc.conf [ -r @SYSCONFDIR@/rc.conf ] && . @SYSCONFDIR@/rc.conf
# Support LiveCD foo # Support LiveCD foo
@ -79,6 +80,20 @@ if [ "${RC_UNAME}" = "Linux" ]; then
# We need the do_unmount function # We need the do_unmount function
. "${RC_LIBDIR}"/sh/rc-mount.sh . "${RC_LIBDIR}"/sh/rc-mount.sh
eindent eindent
no_umounts_r="/|/dev|/dev/.*|${RC_SVCDIR}"
# RC_NO_UMOUNTS is an env var that can be set by plugins
OIFS=${IFS} SIFS=${IFS-y}
IFS=$IFS:
for x in ${no_umounts} ${RC_NO_UMOUNTS}; do
no_umounts_r="${no_umounts_r}|${x}"
done
if [ "${SIFS}" = "y" ]; then
IFS=$OIFS
else
unset IFS
fi
no_umounts_r="${no_umounts_r}|/proc|/proc/.*|/sys|/sys/.*"
no_umounts_r="^(${no_umounts})$"
fs= fs=
for x in ${net_fs_list}; do for x in ${net_fs_list}; do
fs="${fs}${fs:+|}${x}" fs="${fs}${fs:+|}${x}"
@ -86,7 +101,6 @@ if [ "${RC_UNAME}" = "Linux" ]; then
[ -n "${fs}" ] && fs="^(${fs})$" [ -n "${fs}" ] && fs="^(${fs})$"
do_unmount "mount -n -o remount,ro" \ do_unmount "mount -n -o remount,ro" \
--skip-point-regex "^(/dev|/dev/.*|/proc|/proc/.*|/sys|/sys/.*)$" \ --skip-point-regex "^(/dev|/dev/.*|/proc|/proc/.*|/sys|/sys/.*)$" \
--skip-options-regex "^ro" \
${fs:+--skip-fstype-regex} ${fs} --nonetdev ${fs:+--skip-fstype-regex} ${fs} --nonetdev
eoutdent eoutdent
eend $? eend $?

10
init.d/localmount.in
View File

@ -30,13 +30,13 @@ start()
stop() stop()
{ {
# We never unmount / or /dev or $RC_SVCDIR # We never unmount / or /dev or $RC_SVCDIR
local x= no_umounts="/|/dev|/dev/.*|${RC_SVCDIR}" local x= no_umounts_r="/|/dev|/dev/.*|${RC_SVCDIR}"
# RC_NO_UMOUNTS is an env var that can be set by plugins # RC_NO_UMOUNTS is an env var that can be set by plugins
OIFS=${IFS} SIFS=${IFS-y} OIFS=${IFS} SIFS=${IFS-y}
IFS=$IFS: IFS=$IFS:
for x in ${no_umounts} ${RC_NO_UMOUNTS}; do for x in ${no_umounts} ${RC_NO_UMOUNTS}; do
no_umounts="${no_umounts}|${x}" no_umounts_r="${no_umounts_r}|${x}"
done done
if [ "${SIFS}" = "y" ]; then if [ "${SIFS}" = "y" ]; then
IFS=$OIFS IFS=$OIFS
@ -45,9 +45,9 @@ stop()
fi fi
if [ "${RC_UNAME}" = "Linux" ]; then if [ "${RC_UNAME}" = "Linux" ]; then
no_umounts="${no_umounts}|/proc|/proc/.*|/sys|/sys/.*" no_umounts_r="${no_umounts_r}|/proc|/proc/.*|/sys|/sys/.*"
fi fi
no_umounts="^(${no_umounts})$" no_umounts_r="^(${no_umounts})$"
# Flush all pending disk writes now # Flush all pending disk writes now
sync; sync sync; sync
@ -63,7 +63,7 @@ stop()
# Umount loopback devices # Umount loopback devices
einfo "Unmounting loopback devices" einfo "Unmounting loopback devices"
eindent eindent
do_unmount "umount -d" --skip-point-regex "${no_umounts}" \ do_unmount "umount -d" --skip-point-regex "${no_umounts_r}" \
--node-regex "^/dev/loop" --node-regex "^/dev/loop"
eoutdent eoutdent