Current Dir: /snap/core22/2955/usr/sbin/
[FILE] aa-remove-unknown [ edit | delete | rename ]
[FILE] aa-status [ edit | delete | rename ]
[FILE] aa-teardown [ edit | delete | rename ]
[FILE] add-shell [ edit | delete | rename ]
[FILE] addgroup [ edit | delete | rename ]
[FILE] adduser [ edit | delete | rename ]
[FILE] agetty [ edit | delete | rename ]
[FILE] apparmor_parser [ edit | delete | rename ]
[FILE] apparmor_status [ edit | delete | rename ]
[FILE] arpd [ edit | delete | rename ]
[FILE] arptables [ edit | delete | rename ]
[FILE] arptables-nft [ edit | delete | rename ]
[FILE] arptables-nft-restore [ edit | delete | rename ]
[FILE] arptables-nft-save [ edit | delete | rename ]
[FILE] arptables-restore [ edit | delete | rename ]
[FILE] arptables-save [ edit | delete | rename ]
[FILE] badblocks [ edit | delete | rename ]
[FILE] blkdeactivate [ edit | delete | rename ]
[FILE] blkdiscard [ edit | delete | rename ]
[FILE] blkid [ edit | delete | rename ]
[FILE] blkzone [ edit | delete | rename ]
[FILE] blockdev [ edit | delete | rename ]
[FILE] bridge [ edit | delete | rename ]
[FILE] capsh [ edit | delete | rename ]
[FILE] cfdisk [ edit | delete | rename ]
[FILE] chcpu [ edit | delete | rename ]
[FILE] chgpasswd [ edit | delete | rename ]
[FILE] chmem [ edit | delete | rename ]
[FILE] chpasswd [ edit | delete | rename ]
[FILE] chroot [ edit | delete | rename ]
[FILE] cpgr [ edit | delete | rename ]
[FILE] cppw [ edit | delete | rename ]
[FILE] cryptdisks_start [ edit | delete | rename ]
[FILE] cryptdisks_stop [ edit | delete | rename ]
[FILE] cryptsetup [ edit | delete | rename ]
[FILE] cryptsetup-reencrypt [ edit | delete | rename ]
[FILE] cryptsetup-ssh [ edit | delete | rename ]
[FILE] ctrlaltdel [ edit | delete | rename ]
[FILE] dcb [ edit | delete | rename ]
[FILE] debugfs [ edit | delete | rename ]
[FILE] delgroup [ edit | delete | rename ]
[FILE] deluser [ edit | delete | rename ]
[FILE] depmod [ edit | delete | rename ]
[FILE] devlink [ edit | delete | rename ]
[FILE] dhclient [ edit | delete | rename ]
[FILE] dhclient-script [ edit | delete | rename ]
[FILE] dmsetup [ edit | delete | rename ]
[FILE] dmstats [ edit | delete | rename ]
[FILE] dosfsck [ edit | delete | rename ]
[FILE] dosfslabel [ edit | delete | rename ]
[FILE] dumpe2fs [ edit | delete | rename ]
[FILE] e2freefrag [ edit | delete | rename ]
[FILE] e2fsck [ edit | delete | rename ]
[FILE] e2image [ edit | delete | rename ]
[FILE] e2label [ edit | delete | rename ]
[FILE] e2mmpstatus [ edit | delete | rename ]
[FILE] e2scrub [ edit | delete | rename ]
[FILE] e2scrub_all [ edit | delete | rename ]
[FILE] e2undo [ edit | delete | rename ]
[FILE] e4crypt [ edit | delete | rename ]
[FILE] e4defrag [ edit | delete | rename ]
[FILE] ebtables [ edit | delete | rename ]
[FILE] ebtables-nft [ edit | delete | rename ]
[FILE] ebtables-nft-restore [ edit | delete | rename ]
[FILE] ebtables-nft-save [ edit | delete | rename ]
[FILE] ebtables-restore [ edit | delete | rename ]
[FILE] ebtables-save [ edit | delete | rename ]
[FILE] faillock [ edit | delete | rename ]
[FILE] fatlabel [ edit | delete | rename ]
[FILE] fdisk [ edit | delete | rename ]
[FILE] filefrag [ edit | delete | rename ]
[FILE] findfs [ edit | delete | rename ]
[FILE] fsck [ edit | delete | rename ]
[FILE] fsck.cramfs [ edit | delete | rename ]
[FILE] fsck.ext2 [ edit | delete | rename ]
[FILE] fsck.ext3 [ edit | delete | rename ]
[FILE] fsck.ext4 [ edit | delete | rename ]
[FILE] fsck.fat [ edit | delete | rename ]
[FILE] fsck.minix [ edit | delete | rename ]
[FILE] fsck.msdos [ edit | delete | rename ]
[FILE] fsck.vfat [ edit | delete | rename ]
[FILE] fsfreeze [ edit | delete | rename ]
[FILE] fstab-decode [ edit | delete | rename ]
[FILE] fstrim [ edit | delete | rename ]
[FILE] genl [ edit | delete | rename ]
[FILE] getcap [ edit | delete | rename ]
[FILE] getpcaps [ edit | delete | rename ]
[FILE] getty [ edit | delete | rename ]
[FILE] groupadd [ edit | delete | rename ]
[FILE] groupdel [ edit | delete | rename ]
[FILE] groupmems [ edit | delete | rename ]
[FILE] groupmod [ edit | delete | rename ]
[FILE] grpck [ edit | delete | rename ]
[FILE] grpconv [ edit | delete | rename ]
[FILE] grpunconv [ edit | delete | rename ]
[FILE] halt [ edit | delete | rename ]
[FILE] hwclock [ edit | delete | rename ]
[FILE] iconvconfig [ edit | delete | rename ]
[FILE] init [ edit | delete | rename ]
[FILE] insmod [ edit | delete | rename ]
[FILE] installkernel [ edit | delete | rename ]
[FILE] integritysetup [ edit | delete | rename ]
[FILE] invoke-rc.d [ edit | delete | rename ]
[FILE] ip [ edit | delete | rename ]
[FILE] ip6tables [ edit | delete | rename ]
[FILE] ip6tables-apply [ edit | delete | rename ]
[FILE] ip6tables-legacy [ edit | delete | rename ]
[FILE] ip6tables-legacy-restore [ edit | delete | rename ]
[FILE] ip6tables-legacy-save [ edit | delete | rename ]
[FILE] ip6tables-nft [ edit | delete | rename ]
[FILE] ip6tables-nft-restore [ edit | delete | rename ]
[FILE] ip6tables-nft-save [ edit | delete | rename ]
[FILE] ip6tables-restore [ edit | delete | rename ]
[FILE] ip6tables-restore-translate [ edit | delete | rename ]
[FILE] ip6tables-save [ edit | delete | rename ]
[FILE] ip6tables-translate [ edit | delete | rename ]
[FILE] iptables [ edit | delete | rename ]
[FILE] iptables-apply [ edit | delete | rename ]
[FILE] iptables-legacy [ edit | delete | rename ]
[FILE] iptables-legacy-restore [ edit | delete | rename ]
[FILE] iptables-legacy-save [ edit | delete | rename ]
[FILE] iptables-nft [ edit | delete | rename ]
[FILE] iptables-nft-restore [ edit | delete | rename ]
[FILE] iptables-nft-save [ edit | delete | rename ]
[FILE] iptables-restore [ edit | delete | rename ]
[FILE] iptables-restore-translate [ edit | delete | rename ]
[FILE] iptables-save [ edit | delete | rename ]
[FILE] iptables-translate [ edit | delete | rename ]
[FILE] isosize [ edit | delete | rename ]
[FILE] killall5 [ edit | delete | rename ]
[FILE] ldattach [ edit | delete | rename ]
[FILE] ldconfig [ edit | delete | rename ]
[FILE] ldconfig.real [ edit | delete | rename ]
[FILE] logsave [ edit | delete | rename ]
[FILE] losetup [ edit | delete | rename ]
[FILE] lsmod [ edit | delete | rename ]
[FILE] luksformat [ edit | delete | rename ]
[FILE] mkdosfs [ edit | delete | rename ]
[FILE] mke2fs [ edit | delete | rename ]
[FILE] mkfs [ edit | delete | rename ]
[FILE] mkfs.bfs [ edit | delete | rename ]
[FILE] mkfs.cramfs [ edit | delete | rename ]
[FILE] mkfs.ext2 [ edit | delete | rename ]
[FILE] mkfs.ext3 [ edit | delete | rename ]
[FILE] mkfs.ext4 [ edit | delete | rename ]
[FILE] mkfs.fat [ edit | delete | rename ]
[FILE] mkfs.minix [ edit | delete | rename ]
[FILE] mkfs.msdos [ edit | delete | rename ]
[FILE] mkfs.vfat [ edit | delete | rename ]
[FILE] mkhomedir_helper [ edit | delete | rename ]
[FILE] mklost+found [ edit | delete | rename ]
[FILE] mkswap [ edit | delete | rename ]
[FILE] modinfo [ edit | delete | rename ]
[FILE] modprobe [ edit | delete | rename ]
[FILE] netplan [ edit | delete | rename ]
[FILE] newusers [ edit | delete | rename ]
[FILE] nfnl_osf [ edit | delete | rename ]
[FILE] nologin [ edit | delete | rename ]
[FILE] pam-auth-update [ edit | delete | rename ]
[FILE] pam_extrausers_chkpwd [ edit | delete | rename ]
[FILE] pam_extrausers_update [ edit | delete | rename ]
[FILE] pam_getenv [ edit | delete | rename ]
[FILE] pam_timestamp_check [ edit | delete | rename ]
[FILE] pivot_root [ edit | delete | rename ]
[FILE] plymouthd [ edit | delete | rename ]
[FILE] poweroff [ edit | delete | rename ]
[FILE] pwck [ edit | delete | rename ]
[FILE] pwconv [ edit | delete | rename ]
[FILE] pwunconv [ edit | delete | rename ]
[FILE] readprofile [ edit | delete | rename ]
[FILE] reboot [ edit | delete | rename ]
[FILE] remove-shell [ edit | delete | rename ]
[FILE] resize2fs [ edit | delete | rename ]
[FILE] rfkill [ edit | delete | rename ]
[FILE] rmmod [ edit | delete | rename ]
[FILE] rmt [ edit | delete | rename ]
[FILE] rmt-tar [ edit | delete | rename ]
[FILE] rtacct [ edit | delete | rename ]
[FILE] rtcwake [ edit | delete | rename ]
[FILE] rtmon [ edit | delete | rename ]
[FILE] runlevel [ edit | delete | rename ]
[FILE] runuser [ edit | delete | rename ]
[FILE] service [ edit | delete | rename ]
[FILE] setcap [ edit | delete | rename ]
[FILE] sfdisk [ edit | delete | rename ]
[FILE] shadowconfig [ edit | delete | rename ]
[FILE] shutdown [ edit | delete | rename ]
[FILE] sshd [ edit | delete | rename ]
[FILE] start-stop-daemon [ edit | delete | rename ]
[FILE] sudo_logsrvd [ edit | delete | rename ]
[FILE] sudo_sendlog [ edit | delete | rename ]
[FILE] sulogin [ edit | delete | rename ]
[FILE] swaplabel [ edit | delete | rename ]
[FILE] swapoff [ edit | delete | rename ]
[FILE] swapon [ edit | delete | rename ]
[FILE] switch_root [ edit | delete | rename ]
[FILE] sysctl [ edit | delete | rename ]
[FILE] tarcat [ edit | delete | rename ]
[FILE] tc [ edit | delete | rename ]
[FILE] telinit [ edit | delete | rename ]
[FILE] tipc [ edit | delete | rename ]
[FILE] tune2fs [ edit | delete | rename ]
[FILE] tzconfig [ edit | delete | rename ]
[FILE] unix_chkpwd [ edit | delete | rename ]
[FILE] unix_update [ edit | delete | rename ]
[FILE] update-ca-certificates [ edit | delete | rename ]
[FILE] update-passwd [ edit | delete | rename ]
[FILE] update-rc.d [ edit | delete | rename ]
[FILE] update-shells [ edit | delete | rename ]
[FILE] useradd [ edit | delete | rename ]
[FILE] userdel [ edit | delete | rename ]
[FILE] usermod [ edit | delete | rename ]
[FILE] vdpa [ edit | delete | rename ]
[FILE] veritysetup [ edit | delete | rename ]
[FILE] vigr [ edit | delete | rename ]
[FILE] vipw [ edit | delete | rename ]
[FILE] visudo [ edit | delete | rename ]
[FILE] wipefs [ edit | delete | rename ]
[FILE] wpa_action [ edit | delete | rename ]
[FILE] wpa_cli [ edit | delete | rename ]
[FILE] wpa_supplicant [ edit | delete | rename ]
[FILE] xtables-legacy-multi [ edit | delete | rename ]
[FILE] xtables-monitor [ edit | delete | rename ]
[FILE] xtables-nft-multi [ edit | delete | rename ]
[FILE] zic [ edit | delete | rename ]
[FILE] zramctl [ edit | delete | rename ]
Viewing: /snap/core22/2955/usr/sbin/e2scrub
#!/bin/bash
# Copyright (C) 2018 Oracle. All Rights Reserved.
#
# Author: Darrick J. Wong <darrick.wong@oracle.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
# Automatically check an LVM-managed filesystem online.
# We use lvm snapshots to do this, which means that we can only
# check filesystems in VGs that have at least 256MB (or so) of
# free space.
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
if (( $EUID != 0 )); then
echo "e2scrub must be run as root"
exit 1
fi
snap_size_mb=256
fstrim=0
reap=0
e2fsck_opts=""
conffile="/etc/e2scrub.conf"
test -f "${conffile}" && . "${conffile}"
print_help() {
echo "Usage: $0 [OPTIONS] mountpoint | device"
echo
echo "mountpoint must be on an LVM-managed block device"
echo "-n: Show what commands e2scrub would execute."
echo "-r: Remove e2scrub snapshot and exit, do not check anything."
echo "-t: Run fstrim if successful."
echo "-V: Print version information and exit."
}
print_version() {
echo "e2scrub 1.46.5 (30-Dec-2021)"
}
exitcode() {
ret="$1"
# If we're being run as a service, the return code must fit the LSB
# init script action error guidelines, which is to say that we
# compress all errors to 1 ("generic or unspecified error", LSB 5.0
# section 22.2) and hope the admin will scan the log for what
# actually happened.
# We have to sleep 2 seconds here because journald uses the pid to
# connect our log messages to the systemd service. This is critical
# for capturing all the log messages if the scrub fails, because the
# fail service uses the service name to gather log messages for the
# error report.
if [ -n "${SERVICE_MODE}" -a "${ret}" -ne 0 ]; then
test "${ret}" -ne 0 && ret=1
sleep 2
fi
exit "${ret}"
}
while getopts "nrtV" opt; do
case "${opt}" in
"n") DBG="echo Would execute: " ;;
"r") reap=1;;
"t") fstrim=1;;
"V") print_version; exitcode 0;;
*) print_help; exitcode 2;;
esac
done
shift "$((OPTIND - 1))"
arg="$1"
if [ -z "${arg}" ]; then
print_help
exitcode 1
fi
if ! type lsblk >& /dev/null ; then
echo "e2scrub: can't find lsblk --- is util-linux installed?"
exitcode 1
fi
if ! type lvcreate >& /dev/null ; then
echo "e2scrub: can't find lvcreate --- is lvm2 installed?"
exitcode 1
fi
# close file descriptor 3 (from cron) since it causes lvm to kvetch
exec 3<&-
# Find the device for a given mountpoint
dev_from_mount() {
local mountpt="$(realpath "$1")"
lsblk -o NAME,FSTYPE,MOUNTPOINT -p -P -n 2> /dev/null | while read vars; do
eval "${vars}"
if [ "${mountpt}" != "${MOUNTPOINT}" ]; then
continue
fi
case "${FSTYPE}" in
ext[234])
echo "${NAME}"
return 0
;;
esac
done
return 1
}
# Check a device argument
dev_from_arg() {
local dev="$1"
local fstype="$(lsblk -o FSTYPE -n "${dev}" 2> /dev/null)"
case "${fstype}" in
ext[234])
echo "${dev}"
return 0
;;
esac
return 1
}
mnt_from_dev() {
local dev="$1"
if [ -n "${dev}" ]; then
lsblk -o MOUNTPOINT -n "${dev}"
fi
}
# Construct block device path and mountpoint from argument
if [ -b "${arg}" ]; then
dev="$(dev_from_arg "${arg}")"
mnt="$(mnt_from_dev "${dev}")"
else
dev="$(dev_from_mount "${arg}")"
mnt="${arg}"
fi
if [ ! -e "${dev}" ]; then
echo "${arg}: Not an ext[234] filesystem."
print_help
exitcode 16
fi
# Make sure this is an LVM device we can snapshot
lvm_vars="$(lvs --nameprefixes -o name,vgname,lv_role --noheadings "${dev}" 2> /dev/null)"
eval "${lvm_vars}"
if [ -z "${LVM2_VG_NAME}" ] || [ -z "${LVM2_LV_NAME}" ] ||
echo "${LVM2_LV_ROLE}" | grep -q "snapshot"; then
echo "${arg}: Not connnected to an LVM logical volume."
print_help
exitcode 16
fi
start_time="$(date +'%Y%m%d%H%M%S')"
snap="${LVM2_LV_NAME}.e2scrub"
snap_dev="/dev/${LVM2_VG_NAME}/${snap}"
teardown() {
# Remove and wait for removal to succeed.
${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ]; do
sleep 0.5
${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
done
}
check() {
# First we recover the journal, then we see if e2fsck tries any
# non-optimization repairs. If either of these two returns a
# non-zero status (errors fixed or remaining) then this fs is bad.
E2FSCK_FIXES_ONLY=1
export E2FSCK_FIXES_ONLY
${DBG} "/sbin/e2fsck" -E journal_only -p ${e2fsck_opts} "${snap_dev}" || return $?
${DBG} "/sbin/e2fsck" -f -y ${e2fsck_opts} "${snap_dev}"
}
mark_clean() {
${DBG} "/sbin/tune2fs" -C 0 -T "${start_time}" "${dev}"
}
mark_corrupt() {
${DBG} "/sbin/tune2fs" -E force_fsck "${dev}"
}
setup() {
# Try to remove snapshot for 30s, bail out if we can't remove it.
lvremove_deadline="$(( $(date "+%s") + 30))"
${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" 2>/dev/null
while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ] &&
[ "$(date "+%s")" -lt "${lvremove_deadline}" ]; do
sleep 0.5
${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
done
if [ -e "${snap_dev}" ]; then
echo "${arg}: e2scrub snapshot is in use, cannot check!"
return 1
fi
# Create the snapshot, wait for device to appear.
${DBG} lvcreate -s -L "${snap_size_mb}m" -n "${snap}" "${LVM2_VG_NAME}/${LVM2_LV_NAME}"
if [ $? -ne 0 ]; then
echo "${arg}: e2scrub snapshot FAILED, will not check!"
return 1
fi
${DBG} udevadm settle 2> /dev/null
return 0
}
if [ "${reap}" -gt 0 ]; then
if [ -e "${snap_dev}" ]; then
teardown 2> /dev/null
fi
exit 0
fi
if ! setup; then
exitcode 8
fi
trap "teardown; exit 1" EXIT INT QUIT TERM
# Check and react
check
case "$?" in
"0")
# Clean check!
echo "${arg}: Scrub succeeded."
mark_clean
teardown
trap '' EXIT
# Trim the free space, which requires the snapshot be deleted.
if [ "${fstrim}" -eq 1 ] && [ -d "${mnt}" ] && type fstrim > /dev/null 2>&1; then
echo "${arg}: Trimming free space."
fstrim -v "${mnt}"
fi
ret=0
;;
"8")
# Operational error, what now?
echo "${arg}: e2fsck operational error."
teardown
trap '' EXIT
ret=8
;;
*)
# fsck failed. Check if the snapshot is invalid; if so, make a
# note of that at the end of the log. This isn't necessarily a
# failure because the mounted fs could have overflowed the
# snapshot with regular disk writes /or/ our repair process
# could have done it by repairing too much.
#
# If it's really corrupt we ought to fsck at next boot.
is_invalid="$(lvs -o lv_snapshot_invalid --noheadings "${snap_dev}" | awk '{print $1}')"
if [ -n "${is_invalid}" ]; then
echo "${arg}: Scrub FAILED due to invalid snapshot."
ret=8
else
echo "${arg}: Scrub FAILED due to corruption! Unmount and run e2fsck -y."
mark_corrupt
ret=6
fi
teardown
trap '' EXIT
;;
esac
exitcode "${ret}"