?????????? ????????? - ??????????????? - /usr/libexec/lvresize_fs_helper
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#!/usr/bin/bash # # Copyright (C) 2022 Red Hat, Inc. All rights reserved. # # This file is part of LVM2. # # This copyrighted material is made available to anyone wishing to use, # modify, copy, or redistribute it subject to the terms and conditions # of the GNU General Public License v.2. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA errorexit() { echo "$1" >&2 exit 1 } logmsg() { echo "$1" logger "${SCRIPTNAME}: $1" } # Set to 1 while the fs is temporarily mounted on $TMPDIR TMP_MOUNT_DONE=0 # Set to 1 if the fs resize command fails RESIZEFS_FAILED=0 fsextend() { if [ "$DO_UNMOUNT" -eq 1 ]; then logmsg "unmount ${MOUNTDIR}" if umount "$MOUNTDIR"; then logmsg "unmount done" else logmsg "unmount failed" exit 1 fi fi if [ "$DO_FSCK" -eq 1 ]; then logmsg "e2fsck ${DEVPATH}" if e2fsck -f -p "$DEVPATH"; then logmsg "e2fsck done" else logmsg "e2fsck failed" exit 1 fi fi if [ "$DO_CRYPTRESIZE" -eq 1 ]; then logmsg "cryptsetup resize ${DEVPATH}" if cryptsetup resize "$DEVPATH"; then logmsg "cryptsetup done" else logmsg "cryptsetup failed" exit 1 fi fi if [ "$DO_MOUNT" -eq 1 ]; then logmsg "mount ${DEVPATH} ${TMPDIR}" if mount -t "$FSTYPE" "$DEVPATH" "$TMPDIR"; then logmsg "mount done" TMP_MOUNT_DONE=1 else logmsg "mount failed" exit 1 fi fi if [[ "$FSTYPE" == "ext"* ]]; then logmsg "resize2fs ${DEVPATH}" if resize2fs "$DEVPATH"; then logmsg "resize2fs done" else logmsg "resize2fs failed" RESIZEFS_FAILED=1 fi elif [[ "$FSTYPE" == "xfs" ]]; then logmsg "xfs_growfs ${DEVPATH}" if xfs_growfs "$DEVPATH"; then logmsg "xfs_growfs done" else logmsg "xfs_growfs failed" RESIZEFS_FAILED=1 fi fi # If the fs was temporarily mounted, now unmount it. if [ $TMP_MOUNT_DONE -eq 1 ]; then logmsg "cleanup unmount ${TMPDIR}" if umount "$TMPDIR"; then logmsg "cleanup unmount done" TMP_MOUNT_DONE=0 rmdir "$TMPDIR" else logmsg "cleanup unmount failed" exit 1 fi fi # If the fs was temporarily unmounted, now remount it. # Not considered a command failure if this fails. if [[ $DO_UNMOUNT -eq 1 && $REMOUNT -eq 1 ]]; then logmsg "remount ${DEVPATH} ${MOUNTDIR}" if mount -t "$FSTYPE" "$DEVPATH" "$MOUNTDIR"; then logmsg "remount done" else logmsg "remount failed" fi fi if [ $RESIZEFS_FAILED -eq 1 ]; then logmsg "File system extend failed." exit 1 fi exit 0 } fsreduce() { if [ "$DO_UNMOUNT" -eq 1 ]; then logmsg "unmount ${MOUNTDIR}" if umount "$MOUNTDIR"; then logmsg "unmount done" else logmsg "unmount failed" exit 1 fi fi if [ "$DO_FSCK" -eq 1 ]; then logmsg "e2fsck ${DEVPATH}" if e2fsck -f -p "$DEVPATH"; then logmsg "e2fsck done" else logmsg "e2fsck failed" exit 1 fi fi if [ "$DO_MOUNT" -eq 1 ]; then logmsg "mount ${DEVPATH} ${TMPDIR}" if mount -t "$FSTYPE" "$DEVPATH" "$TMPDIR"; then logmsg "mount done" TMP_MOUNT_DONE=1 else logmsg "mount failed" exit 1 fi fi if [[ "$FSTYPE" == "ext"* ]]; then NEWSIZEKB=$(( NEWSIZEBYTES / 1024 )) logmsg "resize2fs ${DEVPATH} ${NEWSIZEKB}k" if resize2fs "$DEVPATH" "$NEWSIZEKB"k; then logmsg "resize2fs done" else logmsg "resize2fs failed" # will exit after cleanup unmount RESIZEFS_FAILED=1 fi fi # If the fs was temporarily mounted, now unmount it. if [ $TMP_MOUNT_DONE -eq 1 ]; then logmsg "cleanup unmount ${TMPDIR}" if umount "$TMPDIR"; then logmsg "cleanup unmount done" TMP_MOUNT_DONE=0 rmdir "$TMPDIR" else logmsg "cleanup unmount failed" exit 1 fi fi if [ $RESIZEFS_FAILED -eq 1 ]; then logmsg "File system reduce failed." exit 1 fi if [ "$DO_CRYPTRESIZE" -eq 1 ]; then NEWSIZESECTORS=$(( NEWSIZEBYTES / 512 )) logmsg "cryptsetup resize ${NEWSIZESECTORS} sectors ${DEVPATH}" if cryptsetup resize --size "$NEWSIZESECTORS" "$DEVPATH"; then logmsg "cryptsetup done" else logmsg "cryptsetup failed" exit 1 fi fi # If the fs was temporarily unmounted, now remount it. # Not considered a command failure if this fails. if [[ $DO_UNMOUNT -eq 1 && $REMOUNT -eq 1 ]]; then logmsg "remount ${DEVPATH} ${MOUNTDIR}" if mount -t "$FSTYPE" "$DEVPATH" "$MOUNTDIR"; then logmsg "remount done" else logmsg "remount failed" fi fi exit 0 } cryptresize() { NEWSIZESECTORS=$(( NEWSIZEBYTES / 512 )) logmsg "cryptsetup resize ${NEWSIZESECTORS} sectors ${DEVPATH}" if cryptsetup resize --size "$NEWSIZESECTORS" "$DEVPATH"; then logmsg "cryptsetup done" else logmsg "cryptsetup failed" exit 1 fi exit 0 } usage() { echo "${SCRIPTNAME}: helper script called by lvresize to resize file systems." echo "" echo "${SCRIPTNAME} --fsextend --fstype name --lvpath path" echo " [ --mountdir path ]" echo " [ --mount ]" echo " [ --unmount ]" echo " [ --remount ]" echo " [ --fsck ]" echo " [ --cryptresize ]" echo " [ --cryptpath path ]" echo "" echo "${SCRIPTNAME} --fsreduce --fstype name --lvpath path" echo " [ --newsizebytes num ]" echo " [ --mountdir path ]" echo " [ --mount ]" echo " [ --unmount ]" echo " [ --remount ]" echo " [ --fsck ]" echo " [ --cryptresize ]" echo " [ --cryptpath path ]" echo "" echo "${SCRIPTNAME} --cryptresize --cryptpath path --newsizebytes num" echo "" echo "Options:" echo " --fsextend" echo " Extend the file system." echo " --fsreduce" echo " Reduce the file system." echo " --fstype name" echo " The type of file system (ext*, xfs)." echo " --lvpath path" echo " The path to the LV being resized." echo " --mountdir path" echo " The file system is currently mounted here." echo " --mount" echo " Mount the file system on a temporary directory before resizing." echo " --unmount" echo " Unmount the file system before resizing." echo " --remount" echo " Remount the file system after resizing if unmounted." echo " --fsck" echo " Run fsck on the file system before resizing (only with ext*)." echo " --newsizebytes num" echo " The new size of the file system." echo " --cryptresize" echo " Resize the crypt device between the LV and file system." echo " --cryptpath path" echo " The path to the crypt device." echo "" } # # BEGIN SCRIPT # PATH="/sbin:/usr/sbin:/bin:/usr/sbin:$PATH" SCRIPTNAME=$(basename "$0") # These are the only commands that this script will run. # Each is enabled (1) by the corresponding command options: # --fsextend, --fsreduce, --cryptresize, --mount, --unmount, --fsck DO_FSEXTEND=0 DO_FSREDUCE=0 DO_CRYPTRESIZE=0 DO_MOUNT=0 DO_UNMOUNT=0 DO_FSCK=0 # --remount: attempt to remount the fs if it was originally # mounted and the script unmounted it. REMOUNT=0 if [ "$UID" != 0 ] && [ "$EUID" != 0 ]; then errorexit "${SCRIPTNAME} must be run as root." fi GETOPT="getopt" OPTIONS=$("$GETOPT" -o h -l help,fsextend,fsreduce,cryptresize,mount,unmount,remount,fsck,fstype:,lvpath:,newsizebytes:,mountdir:,cryptpath: -n "${SCRIPTNAME}" -- "$@") eval set -- "$OPTIONS" while true do case $1 in --fsextend) DO_FSEXTEND=1 shift ;; --fsreduce) DO_FSREDUCE=1 shift ;; --cryptresize) DO_CRYPTRESIZE=1 shift ;; --mount) DO_MOUNT=1 shift ;; --unmount) DO_UNMOUNT=1 shift ;; --fsck) DO_FSCK=1 shift ;; --remount) REMOUNT=1 shift ;; --fstype) FSTYPE=$2; shift; shift ;; --lvpath) LVPATH=$2; shift; shift ;; --newsizebytes) NEWSIZEBYTES=$2; shift; shift ;; --mountdir) MOUNTDIR=$2; shift; shift ;; --cryptpath) CRYPTPATH=$2; shift; shift ;; -h|--help) usage shift exit 0 ;; --) shift break ;; *) errorexit "Unknown option \"$1\." exit 1 ;; esac done # # Input arg checking # # There are three top level commands: --fsextend, --fsreduce, --cryptresize. if [[ "$DO_FSEXTEND" -eq 0 && "$DO_FSREDUCE" -eq 0 && "$DO_CRYPTRESIZE" -eq 0 ]]; then errorexit "Missing --fsextend|--fsreduce|--cryptresize." fi if [[ "$DO_FSEXTEND" -eq 1 || "$DO_FSREDUCE" -eq 1 ]]; then case "$FSTYPE" in ext[234]) ;; "xfs") ;; *) errorexit "Cannot resize --fstype \"$FSTYPE\"." esac if [ -z "$LVPATH" ]; then errorexit "Missing required --lvpath." fi fi if [[ "$DO_CRYPTRESIZE" -eq 1 && -z "$CRYPTPATH" ]]; then errorexit "Missing required --cryptpath for --cryptresize." fi if [ "$DO_CRYPTRESIZE" -eq 1 ]; then DEVPATH=$CRYPTPATH else DEVPATH=$LVPATH fi if [ -z "$DEVPATH" ]; then errorexit "Missing path to device." fi if [ ! -e "$DEVPATH" ]; then errorexit "Device does not exist \"$DEVPATH\"." fi if [[ "$DO_UNMOUNT" -eq 1 && -z "$MOUNTDIR" ]]; then errorexit "Missing required --mountdir for --unmount." fi if [[ "$DO_FSREDUCE" -eq 1 && "$FSTYPE" == "xfs" ]]; then errorexit "Cannot reduce xfs." fi if [[ "$DO_FSCK" -eq 1 && "$FSTYPE" == "xfs" ]]; then errorexit "Cannot use --fsck with xfs." fi if [ "$DO_MOUNT" -eq 1 ]; then TMPDIR=$(mktemp --suffix _lvresize_$$ -d -p /tmp) if [ ! -e "$TMPDIR" ]; then errorexit "Failed to create temp dir." fi # In case the script terminates without doing cleanup function finish { if [ "$TMP_MOUNT_DONE" -eq 1 ]; then logmsg "exit unmount ${TMPDIR}" umount "$TMPDIR" rmdir "$TMPDIR" fi } trap finish EXIT fi # # Main program function: # - the two main functions are fsextend and fsreduce. # - one special case function is cryptresize. # if [ "$DO_FSEXTEND" -eq 1 ]; then fsextend elif [ "$DO_FSREDUCE" -eq 1 ]; then fsreduce elif [ "$DO_CRYPTRESIZE" -eq 1 ]; then cryptresize fi
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| PHP 8.2.30 | ??????????? ?????????: 0.08 |
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