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#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
check() {
# No point trying to support lvm if the binaries are missing
type -P lvm >/dev/null || return 1
[[ $hostonly ]] || [[ $mount_needs ]] && {
for fs in "${host_fs_types[@]}"; do
[[ $fs = LVM*_member ]] && return 0
done
return 255
}
return 0
}
depends() {
# We depend on dm_mod being loaded
echo rootfs-block dm
return 0
}
get_host_lvs() {
local _activated
declare -A _activated
for dev in "${!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}/${DM_LV_NAME}]} ]]; then
printf "%s\n" "${DM_VG_NAME}/${DM_LV_NAME} "
_activated["${DM_VG_NAME}/${DM_LV_NAME}"]=1
fi
done
}
cmdline() {
get_host_lvs | while read line; do
printf " rd.lvm.lv=$line"
done
}
install() {
local _i _needthin
inst lvm
get_host_lvs | while read line; do
printf "%s" " rd.lvm.lv=$line"
if ! [[ $_needthin ]]; then
[[ "$(lvs --noheadings -o segtype ${line%%/*} 2>/dev/null)" == *thin* ]] && _needthin=1
fi
done >> "${initdir}/etc/cmdline.d/90lvm.conf"
inst_rules "$moddir/64-lvm.rules"
if [[ $hostonly ]] || [[ $lvmconf = "yes" ]]; then
if [ -f /etc/lvm/lvm.conf ]; then
inst_simple /etc/lvm/lvm.conf
# FIXME: near-term hack to establish read-only locking;
# use command-line lvm.conf editor once it is available
sed -i -e 's/\(^[[:space:]]*\)locking_type[[:space:]]*=[[:space:]]*[[:digit:]]/\1locking_type = 4/' ${initdir}/etc/lvm/lvm.conf
sed -i -e 's/\(^[[:space:]]*\)use_lvmetad[[:space:]]*=[[:space:]]*[[:digit:]]/\1use_lvmetad = 0/' ${initdir}/etc/lvm/lvm.conf
fi
fi
if ! [[ -e ${initdir}/etc/lvm/lvm.conf ]]; then
mkdir -p "${initdir}/etc/lvm"
{
echo 'global {'
echo 'locking_type = 4'
echo 'use_lvmetad = 0'
echo '}'
} > "${initdir}/etc/lvm/lvm.conf"
fi
inst_rules 11-dm-lvm.rules
# Gentoo ebuild for LVM2 prior to 2.02.63-r1 doesn't install above rules
# files, but provides the one below:
inst_rules 64-device-mapper.rules
# debian udev rules
inst_rules 56-lvm.rules 60-persistent-storage-lvm.rules
inst_script "$moddir/lvm_scan.sh" /sbin/lvm_scan
inst_hook cmdline 30 "$moddir/parse-lvm.sh"
inst_libdir_file "libdevmapper-event-lvm*.so"
if [[ $_needthin ]]; then
inst_multiple -o thin_dump thin_restore thin_check thin_repair
fi
}
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