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|
#!/bin/bash
is_mpath() {
local _dev=$1
[ -e /sys/dev/block/$_dev/dm/uuid ] || return 1
[[ $(cat /sys/dev/block/$_dev/dm/uuid) =~ mpath- ]] && return 0
return 1
}
majmin_to_mpath_dev() {
local _dev
for i in /dev/mapper/*; do
[[ $i == /dev/mapper/control ]] && continue
_dev=$(get_maj_min $i)
if [ "$_dev" = "$1" ]; then
echo $i
return
fi
done
}
# called by dracut
check() {
local _rootdev
# if there's no multipath binary, no go.
require_binaries multipath || return 1
[[ $hostonly ]] || [[ $mount_needs ]] && {
for_each_host_dev_and_slaves is_mpath || return 255
}
return 0
}
# called by dracut
depends() {
echo rootfs-block
echo dm
return 0
}
# called by dracut
cmdline() {
for m in scsi_dh_alua scsi_dh_emc scsi_dh_rdac ; do
if grep -m 1 -q "$m" /proc/modules ; then
printf 'rd.driver.pre=%s ' "$m"
fi
done
}
# called by dracut
installkernel() {
local _ret
local _arch=$(uname -m)
local _funcs='scsi_register_device_handler|dm_dirty_log_type_register|dm_register_path_selector|dm_register_target'
local _s390
if [ "$_arch" = "s390" -o "$_arch" = "s390x" ]; then
_s390drivers="=drivers/s390/scsi"
fi
hostonly='' dracut_instmods -o -s "$_funcs" "=drivers/scsi" "=drivers/md" ${_s390drivers:+"$_s390drivers"}
}
# called by dracut
install() {
local _f _allow
add_hostonly_mpath_conf() {
is_mpath $1 && {
local _dev
_dev=$(majmin_to_mpath_dev $1)
[ -z "$_dev" ] && return
strstr "$_allow" "$_dev" && return
_allow="$_allow --allow $_dev"
}
}
inst_multiple -o \
dmsetup \
kpartx \
mpath_wait \
multipath \
multipathd \
mpathpersist \
xdrgetuid \
xdrgetprio \
/etc/xdrdevices.conf \
/etc/multipath.conf \
/etc/multipath/*
[[ $hostonly ]] && {
for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
[ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf
}
inst $(command -v partx) /sbin/partx
inst_libdir_file "libmultipath*" "multipath/*"
inst_libdir_file 'libgcc_s.so*' 'libaio.so*'
if [[ $hostonly_cmdline ]] ; then
local _conf=$(cmdline)
[[ $_conf ]] && echo "$_conf" >> "${initdir}/etc/cmdline.d/90multipath.conf"
fi
if dracut_module_included "systemd"; then
inst_simple "${moddir}/multipathd.service" "${systemdsystemunitdir}/multipathd.service"
mkdir -p "${initdir}${systemdsystemunitdir}/sysinit.target.wants"
ln -rfs "${initdir}${systemdsystemunitdir}/multipathd.service" "${initdir}${systemdsystemunitdir}/sysinit.target.wants/multipathd.service"
else
inst_hook pre-trigger 02 "$moddir/multipathd.sh"
inst_hook cleanup 02 "$moddir/multipathd-stop.sh"
fi
inst_hook cleanup 80 "$moddir/multipathd-needshutdown.sh"
inst_rules 40-multipath.rules 56-multipath.rules \
62-multipath.rules 65-multipath.rules \
66-kpartx.rules 67-kpartx-compat.rules \
11-dm-mpath.rules
}
|
