You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
176 lines
4.6 KiB
176 lines
4.6 KiB
#!/bin/sh |
|
|
|
# run lvm scan if udev has settled |
|
|
|
extraargs="$*" |
|
type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh |
|
|
|
VGS=$(getargs rd.lvm.vg -d rd_LVM_VG=) |
|
LVS=$(getargs rd.lvm.lv -d rd_LVM_LV=) |
|
|
|
# shellcheck disable=SC2174 |
|
[ -d /etc/lvm ] || mkdir -m 0755 -p /etc/lvm |
|
[ -d /run/lvm ] || mkdir -m 0755 -p /run/lvm |
|
# build a list of devices to scan |
|
lvmdevs=$( |
|
for f in /tmp/.lvm_scan-*; do |
|
[ -e "$f" ] || continue |
|
printf '%s' "${f##/tmp/.lvm_scan-} " |
|
done |
|
) |
|
|
|
check_lvm_ver() { |
|
maj=$1 |
|
min=$2 |
|
ver=$3 |
|
# --poll is supported since 2.2.57 |
|
[ "$4" -lt "$maj" ] && return 1 |
|
[ "$4" -gt "$maj" ] && return 0 |
|
[ "$5" -lt "$min" ] && return 1 |
|
[ "$5" -gt "$min" ] && return 0 |
|
[ "$6" -ge "$ver" ] && return 0 |
|
return 1 |
|
} |
|
|
|
no_lvm_conf_filter() { |
|
if [ ! -e /etc/lvm/lvm.conf ]; then |
|
return 0 |
|
fi |
|
|
|
if [ -e /run/lvm/initrd_no_filter ]; then |
|
return 0 |
|
fi |
|
|
|
if [ -e /run/lvm/initrd_filter ]; then |
|
return 1 |
|
fi |
|
|
|
if [ -e /run/lvm/initrd_global_filter ]; then |
|
return 1 |
|
fi |
|
|
|
# Save lvm config results in /run to avoid running |
|
# lvm config commands for every PV that's scanned. |
|
|
|
filter=$(lvm config devices/filter | grep "$filter=") |
|
if [ -n "$filter" ]; then |
|
printf '%s\n' "$filter" > /run/lvm/initrd_filter |
|
return 1 |
|
fi |
|
|
|
global_filter=$(lvm config devices/global_filter | grep "$global_filter=") |
|
if [ -n "$global_filter" ]; then |
|
printf '%s\n' "$global_filter" > /run/lvm/initrd_global_filter |
|
return 1 |
|
fi |
|
|
|
# /etc/lvm/lvm.conf exists with no filter setting |
|
true > /run/lvm/initrd_no_filter |
|
return 0 |
|
} |
|
|
|
# If no lvm.conf exists, create a basic one with a global section. |
|
if [ ! -e /etc/lvm/lvm.conf ]; then |
|
{ |
|
echo 'global {' |
|
echo '}' |
|
} > /etc/lvm/lvm.conf |
|
lvmwritten=1 |
|
fi |
|
|
|
# Save the original lvm.conf before appending a filter setting. |
|
if [ ! -e /etc/lvm/lvm.conf.orig ]; then |
|
cp /etc/lvm/lvm.conf /etc/lvm/lvm.conf.orig |
|
fi |
|
|
|
# If the original lvm.conf does not contain a filter setting, |
|
# then generate a filter and append it to the original lvm.conf. |
|
# The filter is generated from the list PVs that have been seen |
|
# so far (each has been processed by the lvm udev rule.) |
|
if no_lvm_conf_filter; then |
|
{ |
|
echo 'devices {' |
|
printf ' filter = [ ' |
|
for dev in $lvmdevs; do |
|
printf '"a|^/dev/%s$|", ' "$dev" |
|
done |
|
echo '"r/.*/" ]' |
|
echo '}' |
|
} > /etc/lvm/lvm.conf.filter |
|
lvmfilter=1 |
|
cat /etc/lvm/lvm.conf.orig /etc/lvm/lvm.conf.filter > /etc/lvm/lvm.conf |
|
fi |
|
|
|
# hopefully this output format will never change, e.g.: |
|
# LVM version: 2.02.53(1) (2009-09-25) |
|
OLDIFS=$IFS |
|
IFS=. |
|
# shellcheck disable=SC2046 |
|
set -- $(lvm version 2> /dev/null) |
|
IFS=$OLDIFS |
|
maj=${1##*:} |
|
min=$2 |
|
sub=${3%% *} |
|
sub=${sub%%\(*} |
|
|
|
# For lvchange and vgchange use --sysinit which: |
|
# disables polling (--poll n) |
|
# ignores monitoring (--ignoremonitoring) |
|
# ignores locking failures (--ignorelockingfailure) |
|
# disables hints (--nohints) |
|
# |
|
# For lvs and vgscan: |
|
# disable locking (--nolocking) |
|
# disable hints (--nohints) |
|
|
|
activate_args="--sysinit $extraargs" |
|
unset extraargs |
|
|
|
export LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES=1 |
|
|
|
scan_args="--nolocking" |
|
|
|
check_lvm_ver 2 3 14 "$maj" "$min" "$sub" \ |
|
&& scan_args="$scan_args --nohints" |
|
|
|
if [ -n "$LVS" ]; then |
|
info "Scanning devices $lvmdevs for LVM logical volumes $LVS" |
|
# shellcheck disable=SC2086 |
|
LVSLIST=$(lvm lvs $scan_args --noheading -o lv_full_name,segtype $LVS) |
|
info "$LVSLIST" |
|
|
|
# Only attempt to activate an LV if it appears in the lvs output. |
|
for LV in $LVS; do |
|
if strstr "$LVSLIST" "$LV"; then |
|
# This lvchange is expected to fail if all PVs used by |
|
# the LV are not yet present. Premature/failed lvchange |
|
# could be avoided by reporting if an LV is complete |
|
# from the lvs command above and skipping this lvchange |
|
# if the LV is not lised as complete. |
|
# shellcheck disable=SC2086 |
|
lvm lvchange --yes -K -ay $activate_args "$LV" 2>&1 | vinfo |
|
fi |
|
done |
|
fi |
|
|
|
if [ -z "$LVS" ] || [ -n "$VGS" ]; then |
|
info "Scanning devices $lvmdevs for LVM volume groups $VGS" |
|
# shellcheck disable=SC2086 |
|
lvm vgscan $scan_args 2>&1 | vinfo |
|
# shellcheck disable=SC2086 |
|
lvm vgchange -ay $activate_args $VGS 2>&1 | vinfo |
|
fi |
|
|
|
if [ "$lvmwritten" ]; then |
|
rm -f -- /etc/lvm/lvm.conf |
|
elif [ "$lvmfilter" ]; then |
|
# revert filter that was appended to existing lvm.conf |
|
cp /etc/lvm/lvm.conf.orig /etc/lvm/lvm.conf |
|
rm -f -- /etc/lvm/lvm.conf.filter |
|
fi |
|
unset lvmwritten |
|
unset lvmfilter |
|
|
|
udevadm settle |
|
|
|
need_shutdown
|
|
|