Current File : //lib/dracut/modules.d/80lvmmerge/lvmmerge.sh
#!/bin/bash
type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
do_merge() {
sed -i -e 's/\(^[[:space:]]*\)locking_type[[:space:]]*=[[:space:]]*[[:digit:]]/\1locking_type = 1/' \
/etc/lvm/lvm.conf
systemctl --no-block stop sysroot.mount
swapoff -a
umount -R /sysroot
for tag in $(getargs rd.lvm.mergetags); do
lvm vgs --noheadings -o vg_name | \
while read -r vg || [[ -n $vg ]]; do
unset LVS
declare -a LVS
lvs=$(lvm lvs --noheadings -o lv_name "$vg")
for lv in $lvs; do
lvm lvchange -an "$vg/$lv"
tags=$(trim "$(lvm lvs --noheadings -o lv_tags "$vg/$lv")")
strstr ",${tags}," ",${tag}," || continue
if ! lvm lvs --noheadings -o lv_name "${vg}/${lv}_dracutsnap" &>/dev/null; then
info "Creating backup ${lv}_dracutsnap of ${vg}/${lv}"
lvm lvcreate -pr -s "${vg}/${lv}" --name "${lv}_dracutsnap"
fi
lvm lvchange --addtag "$tag" "${vg}/${lv}_dracutsnap"
info "Merging back ${vg}/${lv} to the original LV"
lvm lvconvert --merge "${vg}/${lv}"
LVS+=($lv)
done
systemctl --no-block stop sysroot.mount
udevadm settle
for ((i=0; i < 100; i++)); do
lvm vgchange -an "$vg" && break
sleep 0.5
done
udevadm settle
lvm vgchange -ay "$vg"
udevadm settle
for lv in "${LVS[@]}"; do
info "Renaming ${lv}_dracutsnap backup to ${vg}/${lv}"
lvm lvrename "$vg" "${lv}_dracutsnap" "${lv}"
done
udevadm settle
done
done
systemctl --no-block reset-failed systemd-fsck-root
systemctl --no-block start systemd-fsck-root
systemctl --no-block reset-failed sysroot.mount
systemctl --no-block start sysroot.mount
for ((i=0; i < 100; i++)); do
[[ -d /sysroot/dev ]] && break
sleep 0.5
systemctl --no-block start sysroot.mount
done
if [[ -d /sysroot/restoredev ]]; then
(
if cd /sysroot/restoredev; then
# restore devices and partitions
for i in *; do
target=$(systemd-escape -pu "$i")
if ! [[ -b $target ]]; then
warn "Not restoring $target, as the device does not exist"
continue
fi
# Just in case
umount "$target" &> /dev/null
info "Restoring $target"
dd if="$i" of="$target" |& vinfo
done
fi
)
mount -o remount,rw /sysroot
rm -fr /sysroot/restoredev
fi
info "Rebooting"
reboot
}
if getarg rd.lvm.mergetags; then
do_merge
fi
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