Added destroy -F option, umount all depended datasets of BE upon destroy command.
This commit is contained in:
Slawomir Wojciech Wojtczak (vermaden)
parent
f8caebcc6c
commit
fde3b39006
81
beadm
81
beadm
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@ -28,7 +28,8 @@ PATH=${PATH}:/bin:/usr/bin:/sbin:/usr/sbin
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if [ $( uname -r | cut -d '.' -f1 ) -lt 8 ]
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then
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echo "ERROR: beadm only works on FreeBSD 8.0 or later"
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echo "ERROR: beadm works on FreeBSD 8.0 or later"
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exit 1
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fi
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__usage() {
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@ -39,15 +40,15 @@ __usage() {
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echo " subcommands:"
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echo
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echo " ${NAME} activate beName"
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echo " ${NAME} create [-e nonActiveBe | beName@snapshot] beName"
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echo " ${NAME} create [-e nonActiveBe | -e beName@snapshot] beName"
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echo " ${NAME} create beName@snapshot"
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echo " ${NAME} destroy beName"
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echo " ${NAME} destroy beName@snapshot"
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echo " ${NAME} destroy [-F] beName | beName@snapshot"
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echo " ${NAME} list"
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echo " ${NAME} rename origBeName newBeName"
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exit 1
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}
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# check if BE exists
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__be_exist() { # 1=DATASET
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if ! zfs list -H -o name ${1} 1> /dev/null 2> /dev/null
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then
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@ -56,10 +57,12 @@ __be_exist() { # 1=DATASET
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fi
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}
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# check if argument is a snapshot
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__be_snapshot() { # 1=DATASET/SNAPSHOT
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echo "${1}" | grep -q "@"
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}
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# create new BE
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__be_new() { # 1=SOURCE 2=TARGET
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local SOURCE=$( echo ${1} | cut -d '@' -f 1 )
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if __be_snapshot ${1}
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@ -132,23 +135,23 @@ BOOTFS=$( zpool list -H -o bootfs ${POOL} )
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case ${1} in
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(list) # --------------------------------------------------------------------
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POOL_PREFIX="${POOL}/ROOT"
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BENAME_STARTS_WITH="${POOL}/ROOT"
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LIST=$( zfs list -o name,used,mountpoint,creation -s creation -H -d 1 -r ${POOL}/ROOT | grep -E "^${POOL}/ROOT/" )
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WIDTH_CREATION=$( echo "${LIST}" | awk '{print $5}' | wc -L )
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WIDTH_NAME=$( echo "${LIST}" | awk '{print $1}' | wc -L )
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WIDTH_NAME=$(( ${WIDTH_NAME} - ${#POOL_PREFIX} - 1 ))
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WIDTH_NAME=$(( ${WIDTH_NAME} - ${#BENAME_STARTS_WITH} - 1 ))
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printf "%-${WIDTH_NAME}s %-6s %-10s %5s %6s %s\n" \
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BE Active Mountpoint Space Policy Created
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echo "${LIST}" \
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| while read NAME USED MOUNTPOINT C R E A T
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| while read NAME USED MOUNTPOINT Y m d H M
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do
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NAME=${NAME##*/}
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unset ACTIVE
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if [ "${POOL_PREFIX}/${NAME}" = "${ROOTFS}" ]
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if [ "${BENAME_STARTS_WITH}/${NAME}" = "${ROOTFS}" ]
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then
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ACTIVE="${ACTIVE}N"
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fi
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if [ "${POOL_PREFIX}/${NAME}" = "${BOOTFS}" ]
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if [ "${BENAME_STARTS_WITH}/${NAME}" = "${BOOTFS}" ]
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then
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ACTIVE="${ACTIVE}R"
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fi
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@ -162,7 +165,7 @@ case ${1} in
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(*) MOUNT="-" ;;
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esac
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printf "%-10s %5s %-6s " ${MOUNT} ${USED} "static"
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date -j -f "%a %b %d %H:%M %Y" "${C} ${R} ${E} ${A} ${T}" +"%Y-%m-%d %H:%M"
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date -j -f "%a %b %d %H:%M %Y" "${Y} ${m} ${d} ${H} ${M}" +"%Y-%m-%d %H:%M"
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done
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;;
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@ -174,7 +177,7 @@ case ${1} in
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__usage
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fi
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__be_exist ${POOL}/ROOT/${3}
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if zfs list -H -o name ${POOL}/ROOT/${4} 2> /dev/null
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if zfs list -H -o name ${POOL}/ROOT/${4} 1> /dev/null 2> /dev/null
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then
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echo "ERROR: Boot environment '${4}' already exists"
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exit 1
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@ -184,9 +187,9 @@ case ${1} in
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(2)
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if __be_snapshot ${2}
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then
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if ! zfs snapshot -r ${POOL}/ROOT/${2} 2> /dev/null
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if ! zfs snapshot -r ${POOL}/ROOT/${2} 1> /dev/null 2> /dev/null
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then
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echo "ERROR: Cannot create '${2}' snapshot"
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echo "ERROR: Cannot create '${2}' recursive snapshot"
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exit 1
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fi
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echo "Created successfully"
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@ -237,7 +240,7 @@ EOF
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else
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TMPMNT=${MOUNT}
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fi
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cp /boot/zfs/zpool.cache ${TMPMNT}/boot/zfs/zpool.cache # 2> /dev/null
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cp /boot/zfs/zpool.cache ${TMPMNT}/boot/zfs/zpool.cache
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LOADER_CONFIGS=${TMPMNT}/boot/loader.conf
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if [ -f ${TMPMNT}/boot/loader.conf.local ]
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then
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@ -250,24 +253,24 @@ EOF
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zfs set mountpoint=legacy ${POOL}/ROOT/${2}
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fi
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fi
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if ! zpool set bootfs=${POOL}/ROOT/${2} ${POOL}
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if ! zpool set bootfs=${POOL}/ROOT/${2} ${POOL} 2> /dev/null
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then
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echo "ERROR: Failed to activate '${POOL}/ROOT/${2}'"
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exit 1
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fi
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fi
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# Disable mounting on all inactive datasets
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# disable automatic mount on all inactive datasets
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zfs list -H -o name -r ${POOL}/ROOT \
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| grep -v "${POOL}/ROOT/${2}" \
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| while read I
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do
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zfs set canmount=noauto ${I}
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done
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# Enable mounting for the active BE and promote it
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# enable automatic mount for active BE and promote it
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zfs list -H -o name,origin -t filesystem -r ${POOL}/ROOT/${2} \
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| while read I ORIGIN
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do
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zfs set canmount=on ${I} 2> /dev/null
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zfs set canmount=on ${I}
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if [ ${ORIGIN} != "-" ]
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then
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zfs promote ${I}
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@ -277,33 +280,51 @@ EOF
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;;
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(destroy) # -----------------------------------------------------------------
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if [ ${#} -ne 2 ]
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case ${#} in
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(2)
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echo "Are you sure you want to destroy '${2}'?"
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echo -n "This action cannot be undone (y/[n]): "
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read CHOICE
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DESTROY=${2}
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;;
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(3)
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if [ "${2}" != "-F" ]
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then
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__usage
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fi
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__be_exist ${POOL}/ROOT/${2}
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if [ "${BOOTFS}" = "${POOL}/ROOT/${2}" ]
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CHOICE=Y
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DESTROY=${3}
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;;
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(*)
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__usage
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;;
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esac
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__be_exist ${POOL}/ROOT/${DESTROY}
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if [ "${BOOTFS}" = "${POOL}/ROOT/${DESTROY}" ]
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then
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echo "ERROR: '${POOL}/ROOT/${2}' is current active boot environment"
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exit 1
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fi
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echo "Are you sure you want to destroy '${2}'?"
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echo -n "This action cannot be undone (y/[n]): "
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read CHOICE
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case ${CHOICE} in
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(Y|y|[Yy][Ee][Ss])
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if __be_snapshot ${POOL}/ROOT/${2}
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if __be_snapshot ${POOL}/ROOT/${DESTROY}
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then
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if ! zfs destroy -r ${POOL}/ROOT/${2} 1> /dev/null 2> /dev/null
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if ! zfs destroy -r ${POOL}/ROOT/${DESTROY} 1> /dev/null 2> /dev/null
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then
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echo "ERROR: Snapshot '${2}' is origin for other boot environment(s)"
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exit 1
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fi
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else
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ORIGINS=$( zfs list -r -H -o origin ${POOL}/ROOT/${2} )
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if ! zfs destroy ${POOL}/ROOT/${2} 1> /dev/null 2> /dev/null
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zfs list -r -H -o name ${POOL}/ROOT/${DESTROY} \
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| sort -n -r \
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| while read DATASET
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do
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zfs umount ${DATASET} 1> /dev/null 2> /dev/null || true
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done
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ORIGINS=$( zfs list -r -H -o origin ${POOL}/ROOT/${DESTROY} )
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if ! zfs destroy ${POOL}/ROOT/${DESTROY} 1> /dev/null 2> /dev/null
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then
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zfs destroy -r ${POOL}/ROOT/${2} 2>&1 \
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zfs destroy -r ${POOL}/ROOT/${DESTROY} 2>&1 \
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| grep "${POOL}/ROOT/" \
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| grep -v "@" \
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| while read I
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@ -323,7 +344,7 @@ EOF
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echo "Destroyed successfully"
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;;
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(*)
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echo "'${2}' has not been destroyed"
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echo "'${DESTROY}' has not been destroyed"
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;;
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esac
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;;
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