/usr/lib/dracut/modules.d/90multipath-hostonly/module-setup.sh is in dracut-core 047-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #!/bin/bash
# called by dracut
check() {
return 255
}
# called by dracut
depends() {
echo multipath
return 0
}
# called by dracut
install() {
local _f _allow
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
}
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"
}
}
[[ $hostonly ]] && {
for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
[ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf
}
}
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