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📄 64-lvm.rules # hacky rules to try to activate lvm when we get new block devs... # # Copyright 2008, Red Hat, Inc. # Jeremy Katz <katzj@redhat.com> SUBSYSTEM!="block", GOTO="lvm_end" ACTION!="add\|change", GOTO="lvm_end" # If the md device is active (indicated by array_state), then set the flag # LVM_MD_PV_ACTIVATED=1 indicating that the md device for the PV is ready # to be used. The lvm udev rule running in root will check that this flag # is set before it will process the md device (it wants to avoid # processing an md device that exists but is not yet ready to be used.) KERNEL=="md[0-9]", ACTION=="change", ENV{ID_FS_TYPE}=="LVM2_member", ENV{LVM_MD_PV_ACTIVATED}!="1", TEST=="md/array_state", ENV{LVM_MD_PV_ACTIVATED}="1" # Also don't process disks that are slated to be a multipath device ENV{DM_MULTIPATH_DEVICE_PATH}=="1", GOTO="lvm_end" KERNEL=="dm-[0-9]", ACTION=="add", GOTO="lvm_end" ENV{ID_FS_TYPE}!="LVM?_member", GOTO="lvm_end" PROGRAM=="/bin/sh -c 'for i in $sys/$devpath/holders/dm-[0-9]*; do [ -e $$i ] && exit 0; done; exit 1;' ", \ GOTO="lvm_end" RUN+="/sbin/initqueue --settled --onetime --unique /sbin/lvm_scan" RUN+="/sbin/initqueue --timeout --name 51-lvm_scan --onetime --unique /sbin/lvm_scan --activationmode degraded" RUN+="/bin/sh -c '>/tmp/.lvm_scan-%k;'" LABEL="lvm_end"	1.28 KB	2022-06-19 22:35
📄 lvm_scan.sh #!/usr/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=$(lvm config devices/filter 2> /dev/null \| grep "$filter=") if [ -n "$filter" ]; then printf '%s\n' "$filter" > /run/lvm/initrd_filter return 1 fi global_filter=$(lvm config devices/global_filter 2> /dev/null \| grep "$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	4.65 KB	2022-06-19 22:35
📄 module-setup.sh #!/usr/bin/bash # called by dracut check() { # No point trying to support lvm if the binaries are missing require_binaries lvm grep \|\| return 1 [[ $hostonly ]] \|\| [[ $mount_needs ]] && { for fs in "${host_fs_types[@]}"; do [[ $fs == LVM_member ]] && return 0 done return 255 } return 0 } # called by dracut depends() { # We depend on dm_mod being loaded echo rootfs-block dm return 0 } # called by dracut cmdline() { local _activated declare -A _activated for dev in "${!host_fs_types[@]}"; do [[ -e /sys/block/${dev#/dev/}/dm/name ]] \|\| continue [[ -e /sys/block/${dev#/dev/}/dm/uuid ]] \|\| continue uuid=$(< "/sys/block/${dev#/dev/}/dm/uuid") [[ ${uuid#LVM-} == "$uuid" ]] && continue dev=$(< "/sys/block/${dev#/dev/}/dm/name") eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$dev" 2> /dev/null)" [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] \|\| return 1 if ! [[ ${_activated[DM_VG_NAME / DM_LV_NAME]} ]]; then printf " rd.lvm.lv=%s " "${DM_VG_NAME}/${DM_LV_NAME} " _activated["${DM_VG_NAME}/${DM_LV_NAME}"]=1 fi done } installkernel() { hostonly='' instmods dm-snapshot } # called by dracut install() { inst_multiple lvm grep if [[ $hostonly_cmdline == "yes" ]]; then local _lvmconf _lvmconf=$(cmdline) [[ $_lvmconf ]] && printf "%s\n" "$_lvmconf" >> "${initdir}/etc/cmdline.d/90lvm.conf" fi inst_rules "$moddir/64-lvm.rules" if [[ $hostonly ]] \|\| [[ $lvmconf == "yes" ]]; then if [[ -f $dracutsysrootdir/etc/lvm/lvm.conf ]]; then inst_simple -H /etc/lvm/lvm.conf fi export LVM_SUPPRESS_FD_WARNINGS=1 # Also install any files needed for LVM system id support. if [[ -f $dracutsysrootdir/etc/lvm/lvmlocal.conf ]]; then inst_simple -H /etc/lvm/lvmlocal.conf fi eval "$(lvm dumpconfig global/system_id_source &> /dev/null)" if [ "$system_id_source" == "file" ]; then eval "$(lvm dumpconfig global/system_id_file)" if [ -f "$system_id_file" ]; then inst_simple -H "$system_id_file" fi fi unset LVM_SUPPRESS_FD_WARNINGS fi inst_rules 11-dm-lvm.rules # Gentoo ebuild for LVM2 prior to 2.02.63-r1 doesn't install above rules # files, but provides the one below: inst_rules 64-device-mapper.rules # debian udev rules inst_rules 56-lvm.rules 60-persistent-storage-lvm.rules inst_script "$moddir/lvm_scan.sh" /sbin/lvm_scan inst_hook cmdline 30 "$moddir/parse-lvm.sh" inst_libdir_file "libdevmapper-event-lvm.so" if [[ $hostonly ]] && find_binary lvs &> /dev/null; then for dev in "${!host_fs_types[@]}"; do [[ -e /sys/block/${dev#/dev/}/dm/name ]] \|\| continue dev=$(< "/sys/block/${dev#/dev/}/dm/name") eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$dev" 2> /dev/null)" # shellcheck disable=SC2015 [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] \|\| continue case "$(lvs --noheadings -o segtype "${DM_VG_NAME}" 2> /dev/null)" in thin \| cache \| era) inst_multiple -o thin_dump thin_restore thin_check thin_repair \ cache_dump cache_restore cache_check cache_repair \ era_check era_dump era_invalidate era_restore break ;; esac done fi if ! [[ $hostonly ]]; then inst_multiple -o thin_dump thin_restore thin_check thin_repair \ cache_dump cache_restore cache_check cache_repair \ era_check era_dump era_invalidate era_restore fi dracut_need_initqueue }	3.8 KB	2022-06-19 22:35
📄 parse-lvm.sh #!/usr/bin/sh if [ -e /etc/lvm/lvm.conf ] && ! getargbool 1 rd.lvm.conf -d -n rd_NO_LVMCONF; then rm -f -- /etc/lvm/lvm.conf fi LV_DEVS="$(getargs rd.lvm.vg -d rd_LVM_VG=) $(getargs rd.lvm.lv -d rd_LVM_LV=)" if ! getargbool 1 rd.lvm -d -n rd_NO_LVM \ \|\| { [ -z "$LV_DEVS" ] && ! getargbool 0 rd.auto; }; then info "rd.lvm=0: removing LVM activation" rm -f -- /etc/udev/rules.d/64-lvm*.rules else for dev in $LV_DEVS; do wait_for_dev -n "/dev/$dev" done fi	491 B	2022-06-19 22:35

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