1 ˆÁÀ ƒh¹¿¾0 #ˆl–Ãa¾”ªe¶¥6 ¸®2ʘ´oÁ „N_À¿?÷#!/usr/bin/bash # # Copyright (C) 2007-2020 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 # # Author: Zdenek Kabelac # # Script for resizing devices (usable for LVM resize) # # Needed utilities: # mount, umount, grep, readlink, blockdev, blkid, fsck, xfs_check, cryptsetup # # ext2/ext3/ext4: resize2fs, tune2fs # reiserfs: resize_reiserfs, reiserfstune # xfs: xfs_growfs, xfs_info # # Return values: # 0 success # 1 error # 2 break detected # 3 unsupported online filesystem check for given mounted fs set -euE -o pipefail TOOL="fsadm" _SAVEPATH=$PATH PATH="/sbin:/usr/sbin:/bin:/usr/sbin:$PATH" # utilities TUNE_EXT="tune2fs" RESIZE_EXT="resize2fs" TUNE_REISER="reiserfstune" RESIZE_REISER="resize_reiserfs" TUNE_XFS="xfs_info" RESIZE_XFS="xfs_growfs" MOUNT="mount" UMOUNT="umount" MKDIR="mkdir" RMDIR="rmdir" BLOCKDEV="blockdev" BLKID="blkid" DATE="date" GREP="grep" READLINK="readlink" READLINK_E="-e" FSCK="fsck" XFS_CHECK="xfs_check" # XFS_REPAIR -n is used when XFS_CHECK is not found XFS_REPAIR="xfs_repair" CRYPTSETUP="cryptsetup" # user may override lvm location by setting LVM_BINARY LVM=${LVM_BINARY:-lvm} YES="${_FSADM_YES-}" DRY=0 VERB= FORCE= EXTOFF=${_FSADM_EXTOFF:-0} DO_LVRESIZE=0 FSTYPE="unknown" VOLUME="unknown" TEMPDIR="${TMPDIR:-/tmp}/${TOOL}_${RANDOM}$$/m" DM_DEV_DIR="${DM_DEV_DIR:-/dev}" BLOCKSIZE= BLOCKCOUNT= MOUNTPOINT= MOUNTED= REMOUNT= PROCDIR="/proc" PROCMOUNTS="$PROCDIR/mounts" PROCSELFMOUNTINFO="$PROCDIR/self/mountinfo" NULL="$DM_DEV_DIR/null" IFS_OLD=$IFS # without bash $'\n' NL=' ' tool_usage() { echo "${TOOL}: Utility to resize or check the filesystem on a device" echo echo " ${TOOL} [options] check " echo " - Check the filesystem on device using fsck" echo echo " ${TOOL} [options] resize [[BKMGTPE]]" echo " - Change the size of the filesystem on device to new_size" echo echo " Options:" echo " -h | --help Show this help message" echo " -v | --verbose Be verbose" echo " -e | --ext-offline unmount filesystem before ext2/ext3/ext4 resize" echo " -f | --force Bypass sanity checks" echo " -n | --dry-run Print commands without running them" echo " -l | --lvresize Resize given device (if it is LVM device)" echo " -c | --cryptresize Resize given crypt device" echo " -y | --yes Answer \"yes\" at any prompts" echo echo " new_size - Absolute number of filesystem blocks to be in the filesystem," echo " or an absolute size using a suffix (in powers of 1024)." echo " If new_size is not supplied, the whole device is used." exit } verbose() { test -z "$VERB" || echo "$TOOL:" "$@" } # Support multi-line error messages error() { for i in "$@" ; do echo "$TOOL: $i" >&2 done cleanup 1 } dry() { if [ "$DRY" -ne 0 ]; then verbose "Dry execution" "$@" return 0 fi verbose "Executing" "$@" $@ } # Accept as success also return code 1 with fsck accept_0_1() { $@ local ret="$?" test "$ret" -eq 1 || return "$ret" # Filesystem was corrected } cleanup() { trap '' 2 # reset MOUNTPOINT - avoid recursion test "$MOUNTPOINT" = "$TEMPDIR" && MOUNTPOINT="" temp_umount if [ -n "$REMOUNT" ]; then verbose "Remounting unmounted filesystem back" dry "$MOUNT" "$VOLUME" "$MOUNTED" fi IFS=$IFS_OLD trap 2 test "$1" -eq 2 && verbose "Break detected" if [ "$DO_LVRESIZE" -eq 2 ]; then # start LVRESIZE with the filesystem modification flag # and allow recursive call of fsadm _FSADM_YES=$YES _FSADM_EXTOFF=$EXTOFF export _FSADM