dracut/modules.d/90lvm/module-setup.sh

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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() {
local _rootdev
# No point trying to support lvm if the binaries are missing
type -P lvm >/dev/null || return 1
. $dracutfunctions
[[ $debug ]] && set -x
check_lvm() {
unset DM_VG_NAME
unset DM_LV_NAME
eval $(udevadm info --query=property --name=$1|egrep '(DM_VG_NAME|DM_LV_NAME)=')
[[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return
echo " rd.lvm.lv=${DM_VG_NAME}/${DM_LV_NAME} " >> "${initdir}/etc/cmdline.d/90lvm.conf"
}
[[ $hostonly ]] || [[ $mount_needs ]] && {
for_each_host_dev_fs check_lvm
[ -f "${initdir}/etc/cmdline.d/90lvm.conf" ] || return 1
}
return 0
}
depends() {
# We depend on dm_mod being loaded
echo rootfs-block dm
return 0
}
install() {
local _i
inst lvm
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/' ${initdir}/etc/lvm/lvm.conf
fi
fi
inst_rules 11-dm-lvm.rules
# Gentoo ebuild for LVM2 prior to 2.02.63-r1 doesn't install above rules
# files, but provides the one below:
inst_rules 64-device-mapper.rules
inst "$moddir/lvm_scan.sh" /sbin/lvm_scan
inst_hook cmdline 30 "$moddir/parse-lvm.sh"
for _i in {"$libdir","$usrlibdir"}/libdevmapper-event-lvm*.so; do
[ -e "$_i" ] && dracut_install "$_i"
done
}