/usr/lib/dracut/modules.d/95lunmask/parse-lunmask.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 | #!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
create_udev_rule() {
local transport=$1
local tgtid=$2
local lun=$3
local _rule=/etc/udev/rules.d/51-${transport}-lunmask-${tgtid}.rules
local _cu_type _dev_type
[ -e ${_rule} ] && return 0
if [ ! -f "$_rule" ] ; then
if [ "$transport" = "fc" ] ; then
cat > $_rule <<EOF
ACTION=="add", SUBSYSTEM=="fc_remote_ports", ATTR{port_name}=="$tgtid", PROGRAM="fc_transport_scan_lun.sh $lun"
EOF
elif [ "$transport" = "sas" ] ; then
cat > $_rule <<EOF
ACTION=="add", SUBSYSTEM=="sas_device", ATTR{sas_address}=="$tgtid", PROGRAM="sas_transport_scan_lun.sh $lun"
EOF
fi
fi
}
for lunmask_arg in $(getargs rd.lunmask); do
(
local OLDIFS="$IFS"
local IFS=","
set $lunmask_arg
IFS="$OLDIFS"
if [ -d /sys/module/scsi_mod ] ; then
printf "manual" > /sys/module/scsi_mod/parameters/scan
elif [ ! -f /etc/modprobe.d/95lunmask.conf ] ; then
echo "options scsi_mod scan=manual" > /etc/modprobe.d/95lunmask.conf
fi
create_udev_rule $1 $2 $3
)
done
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