Gecko [ 122.154.134.11 ]

Name	Size	Permission
MAKEDEV	28.14 KB	-rwxr-xr-x
accton	10.45 KB	-rwxr-xr-x
addpart	8.26 KB	-rwxr-xr-x
agetty	26.09 KB	-rwxr-xr-x
alsactl	101.37 KB	-rwxr-xr-x
arp	61.37 KB	-rwxr-xr-x
arping	17.48 KB	-rwxr-xr-x
audispd	38.02 KB	-rwxr-x---
auditctl	38.03 KB	-rwxr-x---
augenrules	3.48 KB	-rwxr-x---
aureport	95.78 KB	-rwxr-xr-x
ausearch	93.02 KB	-rwxr-xr-x
autrace	16.13 KB	-rwxr-x---
badblocks	29.05 KB	-rwxr-xr-x
biosdevname	37.26 KB	-rwxr-xr-x
blkdeactivate	13.25 KB	-rwxr-xr-x
blkdiscard	18.73 KB	-rwxr-xr-x
blkid	27.17 KB	-rwxr-xr-x
blockdev	17.21 KB	-rwxr-xr-x
bridge	53.63 KB	-rwxr-xr-x
busybox	1021.48 KB	-rwxr-xr-x
cache_check	1.54 MB	-rwxr-xr-x
cache_dump	1.54 MB	-rwxr-xr-x
cache_metadata_size	1.54 MB	-rwxr-xr-x
cache_repair	1.54 MB	-rwxr-xr-x
cache_restore	1.54 MB	-rwxr-xr-x
cbq	32.77 KB	-rwxr-xr-x
cfdisk	68.41 KB	-rwxr-xr-x
chcpu	29.11 KB	-rwxr-xr-x
chkconfig	36.07 KB	-rwxr-xr-x
clock	47.52 KB	-rwxr-xr-x
consoletype	7.71 KB	-rwxr-xr-x
cryptsetup	43.6 KB	-rwxr-xr-x
ctrlaltdel	8.39 KB	-rwxr-xr-x
debugfs	94.08 KB	-rwxr-xr-x
delpart	8.22 KB	-rwxr-xr-x
depmod	133.05 KB	-rwxr-xr-x
dm_dso_reg_tool	13.6 KB	-rwxr-xr-x
dmevent_tool	13.6 KB	-rwxr-xr-x
dmeventd	42.18 KB	-r-xr-xr-x
dmraid	26.27 KB	-rwxr-xr-x
dmraid.static	26.27 KB	-rwxr-xr-x
dmsetup	142.03 KB	-rwxr-xr-x
dmstats	142.03 KB	-rwxr-xr-x
dosfsck	54.05 KB	-rwxr-xr-x
dosfslabel	51.06 KB	-rwxr-xr-x
dracut	11.86 KB	-rwxr-xr-x
dumpe2fs	22.74 KB	-rwxr-xr-x
e2fsck	192.73 KB	-rwxr-xr-x
e2image	28.74 KB	-rwxr-xr-x
e2label	41.73 KB	-rwxr-xr-x
e2undo	14.25 KB	-rwxr-xr-x
era_check	1.54 MB	-rwxr-xr-x
era_dump	1.54 MB	-rwxr-xr-x
era_invalidate	1.54 MB	-rwxr-xr-x
era_restore	1.54 MB	-rwxr-xr-x
ether-wake	14.37 KB	-rwxr-xr-x
ethtool	233.75 KB	-rwxr-xr-x
faillock	14.57 KB	-rwxr-xr-x
fdisk	112.05 KB	-rwxr-xr-x
findfs	9.38 KB	-rwxr-xr-x
fixfiles	7.75 KB	-rwxr-xr-x
fsadm	14.88 KB	-r-xr-xr-x
fsck	33.87 KB	-rwxr-xr-x
fsck.cramfs	15.82 KB	-rwxr-xr-x
fsck.ext2	192.73 KB	-rwxr-xr-x
fsck.ext3	192.73 KB	-rwxr-xr-x
fsck.ext4	192.73 KB	-rwxr-xr-x
fsck.ext4dev	192.73 KB	-rwxr-xr-x
fsck.msdos	54.05 KB	-rwxr-xr-x
fsck.vfat	54.05 KB	-rwxr-xr-x
fsfreeze	10.27 KB	-rwxr-xr-x
fstab-decode	8.14 KB	-rwxr-xr-x
fstrim	17.95 KB	-rwxr-xr-x
fuser	28.48 KB	-rwxr-xr-x
genhostid	7.91 KB	-rwxr-xr-x
getkey	11.71 KB	-rwxr-xr-x
grub	740.84 KB	-rwxr-xr-x
grub-crypt	2.41 KB	-rwxr-xr-x
grub-install	18 KB	-rwxr-xr-x
grub-md5-crypt	2.24 KB	-rwxr-xr-x
grub-terminfo	2.42 KB	-rwxr-xr-x
grubby	50.31 KB	-rwxr-xr-x
halt	14.48 KB	-rwxr-xr-x
hdparm	108.85 KB	-rwxr-xr-x
hwclock	47.52 KB	-rwxr-xr-x
ifcfg	2.98 KB	-rwxr-xr-x
ifconfig	72.23 KB	-rwxr-xr-x
ifdown	1.47 KB	-rwxr-xr-x
ifenslave	21.65 KB	-rwxr-xr-x
ifrename	31.43 KB	-rwxr-xr-x
ifup	4.58 KB	-rwxr-xr-x
initctl	135.53 KB	-rwxr-xr-x
insmod	13.79 KB	-rwxr-xr-x
insmod.static	784.58 KB	-rwxr-xr-x
install-info	42.56 KB	-rwxr-xr-x
installkernel	2.61 KB	-rwxr-xr-x
ip	241.45 KB	-rwxr-xr-x
ip6tables	49.64 KB	-rwxr-xr-x
ip6tables-1.4.7	49.64 KB	-rwxr-xr-x
ip6tables-multi	49.64 KB	-rwxr-xr-x
ip6tables-multi-1.4.7	49.64 KB	-rwxr-xr-x
ip6tables-restore	49.64 KB	-rwxr-xr-x
ip6tables-restore-1.4.7	49.64 KB	-rwxr-xr-x
ip6tables-save	49.64 KB	-rwxr-xr-x
ip6tables-save-1.4.7	49.64 KB	-rwxr-xr-x
ipmaddr	18.92 KB	-rwxr-xr-x
iptables	58.45 KB	-rwxr-xr-x
iptables-1.4.7	58.45 KB	-rwxr-xr-x
iptables-multi	58.45 KB	-rwxr-xr-x
iptables-multi-1.4.7	58.45 KB	-rwxr-xr-x
iptables-restore	58.45 KB	-rwxr-xr-x
iptables-restore-1.4.7	58.45 KB	-rwxr-xr-x
iptables-save	58.45 KB	-rwxr-xr-x
iptables-save-1.4.7	58.45 KB	-rwxr-xr-x
iptunnel	22.75 KB	-rwxr-xr-x
iw	160.43 KB	-rwxr-xr-x
iwconfig	29.58 KB	-rwxr-xr-x
iwevent	18.23 KB	-rwxr-xr-x
iwgetid	14.06 KB	-rwxr-xr-x
iwlist	35.68 KB	-rwxr-xr-x
iwpriv	14.87 KB	-rwxr-xr-x
iwspy	13.94 KB	-rwxr-xr-x
kdump	10.83 KB	-rwxr-xr-x
kexec	176.1 KB	-rwxr-xr-x
killall5	19.98 KB	-rwxr-xr-x
kpartx	38.43 KB	-rwxr-xr-x
ldconfig	878.12 KB	-rwxr-xr-x
load_policy	10.21 KB	-rwxr-xr-x
logsave	12.8 KB	-rwxr-xr-x
losetup	31.2 KB	-rwxr-xr-x
lsinitrd	3.93 KB	-rwxr-xr-x
lsmod	8.88 KB	-rwxr-xr-x
lspci	70.12 KB	-rwxr-xr-x
lspcmcia	35.33 KB	-rwxr-xr-x
lvchange	1.46 MB	-r-xr-xr-x
lvconvert	1.46 MB	-r-xr-xr-x
lvcreate	1.46 MB	-r-xr-xr-x
lvdisplay	1.46 MB	-r-xr-xr-x
lvextend	1.46 MB	-r-xr-xr-x
lvm	1.46 MB	-r-xr-xr-x
lvmchange	1.46 MB	-r-xr-xr-x
lvmconf	12.39 KB	-r-xr-xr-x
lvmconfig	1.46 MB	-r-xr-xr-x
lvmdiskscan	1.46 MB	-r-xr-xr-x
lvmdump	9.43 KB	-r-xr-xr-x
lvmetad	66.09 KB	-r-xr-xr-x
lvmsadc	1.46 MB	-r-xr-xr-x
lvmsar	1.46 MB	-r-xr-xr-x
lvreduce	1.46 MB	-r-xr-xr-x
lvremove	1.46 MB	-r-xr-xr-x
lvrename	1.46 MB	-r-xr-xr-x
lvresize	1.46 MB	-r-xr-xr-x
lvs	1.46 MB	-r-xr-xr-x
lvscan	1.46 MB	-r-xr-xr-x
matchpathcon	12.01 KB	-rwxr-xr-x
mdmon	229.84 KB	-rwxr-xr-x
microcode_ctl	11.61 KB	-rwxr-xr-x
mii-diag	21.25 KB	-rwxr-xr-x
mii-tool	17.8 KB	-rwxr-xr-x
mingetty	18.7 KB	-rwxr-xr-x
mkdosfs	29.88 KB	-rwxr-xr-x
mkdumprd	120.65 KB	-rwxr-xr-x
mke2fs	67.34 KB	-rwxr-xr-x
mkfs	10.09 KB	-rwxr-xr-x
mkfs.cramfs	26.26 KB	-rwxr-xr-x
mkfs.ext2	67.34 KB	-rwxr-xr-x
mkfs.ext3	67.34 KB	-rwxr-xr-x
mkfs.ext4	67.34 KB	-rwxr-xr-x
mkfs.ext4dev	67.34 KB	-rwxr-xr-x
mkfs.msdos	29.88 KB	-rwxr-xr-x
mkfs.vfat	29.88 KB	-rwxr-xr-x
mkhomedir_helper	22.01 KB	-rwxr-xr-x
mkinitrd	3.33 KB	-rwxr-xr-x
mkswap	30.78 KB	-rwxr-xr-x
modinfo	95.34 KB	-rwxr-xr-x
modprobe	121.42 KB	-rwxr-xr-x
mount.cifs	39.59 KB	-rwxr-xr-x
mount.nfs	122.47 KB	-rwsr-xr-x
mount.nfs4	122.47 KB	-rwsr-xr-x
mount.tmpfs	1.31 KB	-rwxr-xr-x
nameif	15.26 KB	-rwxr-xr-x
netreport	8.59 KB	-rwxr-sr-x
new-kernel-pkg	13.57 KB	-rwxr-xr-x
nfs_cache_getent	460 B	-rwxr-xr-x
nologin	7.63 KB	-rwxr-xr-x
pam_console_apply	41.13 KB	-rwxr-xr-x
pam_tally2	16.87 KB	-rwxr-xr-x
parted	85.11 KB	-rwxr-xr-x
partprobe	14.98 KB	-rwxr-xr-x
partx	24.9 KB	-rwxr-xr-x
pccardctl	35.33 KB	-rwxr-xr-x
pdata_tools	1.54 MB	-rwxr-xr-x
pidof	19.98 KB	-rwxr-xr-x
pivot_root	7.61 KB	-rwxr-xr-x
plipconfig	10.52 KB	-rwxr-xr-x
poweroff	14.48 KB	-rwxr-xr-x
ppp-watch	29.08 KB	-rwxr-xr-x
pvchange	1.46 MB	-r-xr-xr-x
pvck	1.46 MB	-r-xr-xr-x
pvcreate	1.46 MB	-r-xr-xr-x
pvdisplay	1.46 MB	-r-xr-xr-x
pvmove	1.46 MB	-r-xr-xr-x
pvremove	1.46 MB	-r-xr-xr-x
pvresize	1.46 MB	-r-xr-xr-x
pvs	1.46 MB	-r-xr-xr-x
pvscan	1.46 MB	-r-xr-xr-x
quotacheck	103.01 KB	-rwxr-xr-x
quotaoff	72.5 KB	-rwxr-xr-x
quotaon	72.5 KB	-rwxr-xr-x
readahead	25.51 KB	-rwxr-xr-x
readahead-collector	27.76 KB	-rwxr-xr-x
reboot	14.48 KB	-rwxr-xr-x
reload	135.53 KB	-rwxr-xr-x
request-key	20.91 KB	-rwxr-xr-x
resize2fs	41.49 KB	-rwxr-xr-x
restart	135.53 KB	-rwxr-xr-x
restorecon	26.63 KB	-rwxr-xr-x
rfkill	12.13 KB	-rwxr-xr-x
rmmod	16.28 KB	-rwxr-xr-x
rngd	23.47 KB	-rwxr-xr-x
route	58.38 KB	-rwxr-xr-x
rtmon	37.7 KB	-rwxr-xr-x
runlevel	14.02 KB	-rwxr-xr-x
runuser	32.7 KB	-rwxr-xr-x
scsi_id	34.55 KB	-rwxr-xr-x
securetty	10.7 KB	-rwxr-xr-x
service	1.65 KB	-rwxr-xr-x
setfiles	26.63 KB	-rwxr-xr-x
setpci	23.37 KB	-rwxr-xr-x
setsysfont	850 B	-rwxr-xr-x
sfdisk	71.53 KB	-rwxr-xr-x
sgpio	16.36 KB	-rwxr-xr-x
shutdown	62.98 KB	-rwxr-xr-x
slattach	37.35 KB	-rwxr-xr-x
sln	676.6 KB	-rwxr-xr-x
start	135.53 KB	-rwxr-xr-x
status	135.53 KB	-rwxr-xr-x
stop	135.53 KB	-rwxr-xr-x
sulogin	16.6 KB	-rwxr-xr-x
sushell	67 B	-rwxr-xr-x
swapoff	29.69 KB	-rwxr-xr-x
swapon	29.69 KB	-rwxr-xr-x
switch_root	11.95 KB	-rwxr-xr-x
sysctl	18.92 KB	-rwxr-xr-x
tc	253.53 KB	-rwxr-xr-x
telinit	50.33 KB	-rwxr-xr-x
thin_check	1.54 MB	-rwxr-xr-x
thin_delta	1.54 MB	-rwxr-xr-x
thin_dump	1.54 MB	-rwxr-xr-x
thin_ls	1.54 MB	-rwxr-xr-x
thin_metadata_size	1.54 MB	-rwxr-xr-x
thin_repair	1.54 MB	-rwxr-xr-x
thin_restore	1.54 MB	-rwxr-xr-x
thin_rmap	1.54 MB	-rwxr-xr-x
thin_trim	1.54 MB	-rwxr-xr-x
tune2fs	41.73 KB	-rwxr-xr-x
umount.hal	11.94 KB	-rwxr-xr-x
umount.nfs	122.47 KB	-rwsr-xr-x
umount.nfs4	122.47 KB	-rwsr-xr-x
unix_chkpwd	34.02 KB	-rwsr-xr-x
vconfig	13.16 KB	-rwxr-xr-x
vgcfgbackup	1.46 MB	-r-xr-xr-x
vgcfgrestore	1.46 MB	-r-xr-xr-x
vgchange	1.46 MB	-r-xr-xr-x
vgck	1.46 MB	-r-xr-xr-x
vgconvert	1.46 MB	-r-xr-xr-x
vgcreate	1.46 MB	-r-xr-xr-x
vgdisplay	1.46 MB	-r-xr-xr-x
vgexport	1.46 MB	-r-xr-xr-x
vgextend	1.46 MB	-r-xr-xr-x
vgimport	1.46 MB	-r-xr-xr-x
vgimportclone	9.4 KB	-r-xr-xr-x
vgmerge	1.46 MB	-r-xr-xr-x
vgmknodes	1.46 MB	-r-xr-xr-x
vgreduce	1.46 MB	-r-xr-xr-x
vgremove	1.46 MB	-r-xr-xr-x
vgrename	1.46 MB	-r-xr-xr-x
vgs	1.46 MB	-r-xr-xr-x
vgscan	1.46 MB	-r-xr-xr-x
vgsplit	1.46 MB	-r-xr-xr-x
vmcore-dmesg	16.99 KB	-rwxr-xr-x
weak-modules	15.83 KB	-rwxr-xr-x
wipefs	16.19 KB	-rwxr-xr-x

Code Editor : blkdeactivate

#!/bin/bash
#
# Copyright (C) 2012-2015 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: Peter Rajnoha <prajnoha at redhat.com>
#
# Script for deactivating block devices
#
# Requires:
#   bash >= 4.0 (associative array support)
#   util-linux {
#       lsblk >= 2.22 (lsblk -s support)
#       umount
#   }
#   dmsetup >= 1.02.68 (--retry option support)
#   lvm >= 2.2.89 (activation/retry_deactivation config support)
#

#set -x
shopt -s dotglob nullglob

TOOL=blkdeactivate

DEV_DIR='/dev'
SYS_BLK_DIR='/sys/block'

UMOUNT="/bin/umount"
DMSETUP="/sbin/dmsetup"
LVM="/sbin/lvm"
MDADM="/sbin/mdadm"
MPATHD="/sbin/multipathd"

if $UMOUNT --help | grep -- "--all-targets" >$DEV_DIR/null; then
	UMOUNT_OPTS="--all-targets "
else
	UMOUNT_OPTS=""
	FINDMNT="/bin/findmnt -r --noheadings -u -o TARGET"
	FINDMNT_READ="read -r mnt"
fi
DMSETUP_OPTS=""
LVM_OPTS=""
MDADM_OPTS=""
MPATHD_OPTS=""

LSBLK="/bin/lsblk -r --noheadings -o TYPE,KNAME,NAME,MOUNTPOINT"
LSBLK_VARS="local devtype local kname local name local mnt"
LSBLK_READ="read -r devtype kname name mnt"
SORT_MNT="/bin/sort -r -u -k 4"

# Do not show tool errors by default (only done/skipping summary
# message provided by this script) and no verbose mode by default.
ERRORS=0
VERBOSE=0

# Do not unmount mounted devices by default.
DO_UMOUNT=0

# Deactivate each LV separately by default (not the whole VG).
LVM_DO_WHOLE_VG=0
# Do not retry LV deactivation by default.
LVM_CONFIG="activation{retry_deactivation=0}"

# Do not disable queueing if set on multipath devices.
MPATHD_DO_DISABLEQUEUEING=0

#
# List of device names and/or VGs to be skipped.
# Device name is the KNAME from lsblk output.
#
# If deactivation of any device fails, it's automatically
# added to the SKIP_DEVICE_LIST (also a particular VG
# added to the SKIP_VG_LIST for a device that is an LV).
#
# These lists provide device tree pruning to skip
# particular device/VG deactivation that failed already.
# (lists are associative arrays!)
#
declare -A SKIP_DEVICE_LIST=()
declare -A SKIP_VG_LIST=()

#
# List of mountpoints to be skipped. Any device that is mounted on the mountpoint
# listed here will be added to SKIP_DEVICE_LIST (and SKIP_VG_LIST) automatically.
# (list is an associative array!)
#
declare -A SKIP_UMOUNT_LIST=(["/"]=1 ["/boot"]=1 \
                             ["/lib"]=1 ["/lib64"]=1 \
                             ["/bin"]=1 ["/sbin"]=1 \
                             ["/var"]=1 ["/var/log"]=1 \
                             ["/usr"]=1 \
                             ["/usr/lib"]=1 ["/usr/lib64"]=1 \
                             ["/usr/sbin"]=1 ["/usr/bin"]=1)
# Bash can't properly handle '[' and ']' used as a subscript
# within the '()'initialization - it needs to be done separately!
SKIP_UMOUNT_LIST["[SWAP]"]=1

usage() {
	echo "${TOOL}: Utility to deactivate block devices"
	echo
	echo "  ${TOOL} [options] [device...]"
	echo "    - Deactivate block device tree."
	echo "      If devices are specified, deactivate only supplied devices and their holders."
	echo
	echo "  Options:"
	echo "    -e | --errors                    Show errors reported from tools"
	echo "    -h | --help                      Show this help message"
	echo "    -d | --dmoption    DM_OPTIONS    Comma separated DM specific options"
	echo "    -l | --lvmoption   LVM_OPTIONS   Comma separated LVM specific options"
	echo "    -m | --mpathoption MPATH_OPTIONS Comma separated DM-multipath specific options"
	echo "    -u | --umount                    Unmount the device if mounted"
	echo "    -v | --verbose                   Verbose mode (also implies -e)"
	echo
	echo "  Device specific options:"
	echo "    DM_OPTIONS:"
	echo "      retry           retry removal several times in case of failure"
	echo "      force           force device removal"
	echo "    LVM_OPTIONS:"
	echo "      retry           retry removal several times in case of failure"
	echo "      wholevg         deactivate the whole VG when processing an LV"
	echo "    MPATH_OPTIONS:"
	echo "      disablequeueing disable queueing on all DM-multipath devices first"

exit
}

add_device_to_skip_list() {
	SKIP_DEVICE_LIST+=(["$kname"]=1)
	return 1
}

add_vg_to_skip_list() {
	SKIP_VG_LIST+=(["$DM_VG_NAME"]=1)
	return 1
}

is_top_level_device() {
	# top level devices do not have any holders, that is
	# the SYS_BLK_DIR/<device_name>/holders dir is empty
	files="`echo $SYS_BLK_DIR/$kname/holders/*`"
	test -z "$files"
}

device_umount_one() {
	test -z "$mnt" && return 0

if test -z "${SKIP_UMOUNT_LIST["$mnt"]}" -a "$DO_UMOUNT" -eq "1"; then
		echo -n "  [UMOUNT]: unmounting $name ($kname) mounted on $mnt... "
		if eval $UMOUNT $UMOUNT_OPTS "$(printf $mnt)" $OUT $ERR; then
			echo "done"
		else
			echo "skipping"
			add_device_to_skip_list
		fi
	else
		echo "  [SKIP]: unmount of $name ($kname) mounted on $mnt"
		add_device_to_skip_list
	fi
}

device_umount() {
	test "$devtype" != "lvm" && test "${kname:0:3}" != "dm-" && return 0

# FINDMNT is defined only if umount --all-targets is not available.
	# In that case, read the list of multiple mount points of one device
	# using FINDMNT and unmount it one by one manually.
	if test -z "$FINDMNT"; then
		device_umount_one
	else
		while $FINDMNT_READ; do
			device_umount_one || return 1
		done <<< "`$FINDMNT $DEV_DIR/$kname`"
	fi

}

deactivate_holders () {
	local skip=1; $LSBLK_VARS

# Get holders for the device - either a mount or another device.
	# First line on the lsblk output is the device itself - skip it for
	# the deactivate call as this device is already being deactivated.
	while $LSBLK_READ; do
		test -e $SYS_BLK_DIR/$kname || continue
		# check if the device not on the skip list already
		test -z ${SKIP_DEVICE_LIST["$kname"]} || return 1

# try to deactivate the holder
		test $skip -eq 1 && skip=0 && continue
		deactivate || return 1
	done <<< "`$LSBLK $1`"
}

deactivate_dm () {
	local name=$(printf $name)
	test -b "$DEV_DIR/mapper/$name" || return 0
	test -z ${SKIP_DEVICE_LIST["$kname"]} || return 1

deactivate_holders "$DEV_DIR/mapper/$name" || return 1

echo -n "  [DM]: deactivating $devtype device $name ($kname)... "
	if eval $DMSETUP $DMSETUP_OPTS remove "$name" $OUT $ERR; then
		echo "done"
	else
		echo "skipping"
		add_device_to_skip_list
	fi
}

deactivate_lvm () {
	local DM_VG_NAME; local DM_LV_NAME; local DM_LV_LAYER

eval $(eval $DMSETUP splitname --nameprefixes --noheadings --rows "$name" LVM $ERR)
	test -b "$DEV_DIR/$DM_VG_NAME/$DM_LV_NAME" || return 0
	test -z ${SKIP_VG_LIST["$DM_VG_NAME"]} || return 1

if test $LVM_DO_WHOLE_VG -eq 0; then
		# Skip LVM device deactivation if LVM tools missing.
		test $LVM_AVAILABLE -eq 0 && {
			add_device_to_skip_list
			return 1
		}
		# Deactivating only the LV specified
		deactivate_holders "$DEV_DIR/$DM_VG_NAME/$DM_LV_NAME" || {
			add_device_to_skip_list
			return 1
		}

echo -n "  [LVM]: deactivating Logical Volume $DM_VG_NAME/$DM_LV_NAME... "
		if eval $LVM lvchange $LVM_OPTS --config \'log{prefix=\"\"} $LVM_CONFIG\' -aln $DM_VG_NAME/$DM_LV_NAME $OUT $ERR; then
			echo "done"
		else
			echo "skipping"
			add_device_to_skip_list
		fi

else
		# Skip LVM VG deactivation if LVM tools missing.
		test $LVM_AVAILABLE -eq 0 && {
			add_vg_to_skip_list
			return 1
		}
		# Deactivating the whole VG the LV is part of
		lv_list=$(eval $LVM vgs --config "$LVM_CONFIG" --noheadings --rows -o lv_name $DM_VG_NAME $ERR)
		for lv in $lv_list; do
			test -b "$DEV_DIR/$DM_VG_NAME/$lv" || continue
			deactivate_holders "$DEV_DIR/$DM_VG_NAME/$lv" || {
				add_vg_to_skip_list
				return 1
			}
		done

echo -n "  [LVM]: deactivating Volume Group $DM_VG_NAME... "
		if eval $LVM vgchange $LVM_OPTS --config \'log{prefix=\"    \"} $LVM_CONFIG\' -aln $DM_VG_NAME $OUT $ERR; then
			echo "done"
		else
			echo "skipping"
			add_vg_to_skip_list
		fi
	fi
}

deactivate_md () {
	local name=$(printf $name)
	test -b "$DEV_DIR/$name" || return 0
	test -z ${SKIP_DEVICE_LIST["$kname"]} || return 1

# Skip MD device deactivation if MD tools missing.
	test $MDADM_AVAILABLE -eq 0 && {
		add_device_to_skip_list
		return 1
	}

deactivate_holders "$DEV_DIR/$name" || return 1

echo -n "  [MD]: deactivating $devtype device $kname... "
	if eval $MDADM $MDADM_OPTS -S "$name" $OUT $ERR; then
		echo "done"
	else
		echo "skipping"
		add_device_to_skip_list
	fi
}

deactivate () {
	######################################################################
	# DEACTIVATION HOOKS FOR NEW DEVICE TYPES GO HERE!                   #
	#                                                                    #
	# Identify a new device type either by inspecting the TYPE provided  #
	# by lsblk directly ($devtype) or by any other mean that is suitable #
	# e.g. the KNAME provided by lsblk ($kname). See $LSBLK_VARS for     #
	# complete list of variables that may be used. Then call a           #
	# device-specific deactivation function that handles the exact type. #
	#                                                                    #
        # This device-specific function will certainly need to call          #
	# deactivate_holders first to recursively deactivate any existing    #
	# holders it might have before deactivating the device it processes. #
	######################################################################
	if test "$devtype" = "lvm"; then
		deactivate_lvm
	elif test "${kname:0:3}" = "dm-"; then
		deactivate_dm
	elif test "${kname:0:2}" = "md"; then
		deactivate_md
	fi
}

deactivate_all() {
	$LSBLK_VARS
	skip=0

echo "Deactivating block devices:"

test $MPATHD_RUNNING -eq 1 && {
		echo -n "  [DM]: disabling queueing on all multipath devices... "
		eval $MPATHD $MPATHD_OPTS disablequeueing maps $ERR | grep '^ok$' >$DEV_DIR/null && echo "done" || echo "failed"
	}

if test $# -eq 0; then
		#######################
		# Process all devices #
		#######################

# Unmount all relevant mountpoints first
		while $LSBLK_READ; do
			device_umount
		done <<< "`$LSBLK | $SORT_MNT`"

# Do deactivate
		while $LSBLK_READ; do
			# 'disk' is at the bottom already and it's a real device
			test "$devtype" = "disk" && continue

# if deactivation of any device fails, skip processing
			# any subsequent devices within its subtree as the
			# top-level device could not be deactivated anyway
			test $skip -eq 1 && {
				# reset 'skip' on top level device
				is_top_level_device && skip=0 || continue
			}

# check if the device is not on the skip list already
			test -z ${SKIP_DEVICE_LIST["$kname"]} || continue

# try to deactivate top-level device, set 'skip=1'
			# if it fails to do so - this will cause all the
			# device's subtree to be skipped when processing
			# devices further in this loop
			deactivate || skip=1
		done <<< "`$LSBLK -s`"
	else
		##################################
		# Process only specified devices #
		##################################

while test $# -ne 0; do
			# Unmount all relevant mountpoints first
			while $LSBLK_READ; do
				device_umount
			done <<< "`$LSBLK $1 | $SORT_MNT`"

# Do deactivate
			# Single dm device tree deactivation.
			if test -b "$1"; then
				$LSBLK_READ <<< "`$LSBLK --nodeps $1`"

# check if the device is not on the skip list already
				test -z ${SKIP_DEVICE_LIST["$kname"]} || {
					shift
					continue
				}

deactivate
			else
				echo "$1: device not found"
				return 1
			fi
			shift
		done;
	fi
}

get_dmopts() {
	ORIG_IFS=$IFS; IFS=','

for opt in $1; do
		case $opt in
			"") ;;
			"retry") DMSETUP_OPTS+="--retry " ;;
			"force") DMSETUP_OPTS+="--force " ;;
			*) echo "$opt: unknown DM option"
		esac
	done

IFS=$ORIG_IFS
}

get_lvmopts() {
	ORIG_IFS=$IFS; IFS=','

for opt in $1; do
		case "$opt" in
			"") ;;
			"retry") LVM_CONFIG="activation{retry_deactivation=1}" ;;
			"wholevg") LVM_DO_WHOLE_VG=1 ;;
			*) echo "$opt: unknown LVM option"
		esac
	done

IFS=$ORIG_IFS
}

get_mpathopts() {
	ORIG_IFS=$IFS; IFS=','

for opt in $1; do
		case "$opt" in
			"") ;;
			"disablequeueing") MPATHD_DO_DISABLEQUEUEING=1 ;;
			*) echo "$opt: unknown DM-multipath option"
		esac
	done

IFS=$ORIG_IFS
}

set_env() {
	if test "$ERRORS" -eq "1"; then
		unset ERR
	else
		ERR="2>$DEV_DIR/null"
	fi

if test "$VERBOSE" -eq "1"; then
		unset OUT
		UMOUNT_OPTS+="-v"
		DMSETUP_OPTS+="-vvvv"
		LVM_OPTS+="-vvvv"
		MDADM_OPTS+="-vv"
		MPATHD_OPTS+="-v 3"
	else
		OUT="1>$DEV_DIR/null"
	fi

if test -f $LVM; then
		LVM_AVAILABLE=1
	else
		LVM_AVAILABLE=0
	fi

if test -f $MDADM; then
		MDADM_AVAILABLE=1
	else
		MDADM_AVAILABLE=0
	fi

MPATHD_RUNNING=0
	test $MPATHD_DO_DISABLEQUEUEING -eq 1 && {
		if test -f $MPATHD; then
			if eval $MPATHD show daemon $ERR | grep "running" >$DEV_DIR/null; then
				MPATHD_RUNNING=1
			fi
		fi
	}
}

while test $# -ne 0; do
	case "$1" in
		"") ;;
		"-e"|"--errors") ERRORS=1 ;;
		"-h"|"--help") usage ;;
		"-d"|"--dmoption ") get_dmopts "$2" ; shift ;;
		"-l"|"--lvmoption ") get_lvmopts "$2" ; shift ;;
		"-m"|"--mpathoption ") get_mpathopts "$2" ; shift ;;
		"-u"|"--umount") DO_UMOUNT=1 ;;
		"-v"|"--verbose") VERBOSE=1 ; ERRORS=1 ;;
		"-vv") VERBOSE=1 ; ERRORS=1 ; set -x ;;
		*) break ;;
	esac
	shift
done

set_env
deactivate_all "$@"

${this.title}

Code Editor : blkdeactivate