dracut/modules.d/90mdraid/parse-md.sh

#!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
if ! getargbool 1 rd.md -n rd_NO_MD; then
    info "rd.md=0: removing MD RAID activation"
    udevproperty rd_NO_MD=1
else
    MD_UUID=$(getargs rd.md.uuid rd_MD_UUID=)

    # rewrite the md rules to only process the specified raid array
    if [ -n "$MD_UUID" ]; then
        for f in /etc/udev/rules.d/65-md-incremental*.rules; do
            [ -e "$f" ] || continue
            while read line; do
                if [ "${line%%UUID CHECK}" != "$line" ]; then
                    for uuid in $MD_UUID; do
                        printf 'ENV{MD_UUID}=="%s", GOTO="do_md_inc"\n' $uuid
                    done;
                    printf 'GOTO="md_inc_end"\n';
                else
                    echo $line;
                fi
            done < "${f}" > "${f}.new"
            mv "${f}.new" "$f"
        done
    fi
fi


if [ -e /etc/mdadm.conf ] && getargbool 1 rd.md.conf -n rd_NO_MDADMCONF; then
    udevproperty rd_MDADMCONF=1
    rm -f $hookdir/pre-pivot/*mdraid-cleanup.sh
fi

if ! getargbool 1 rd.md.conf -n rd_NO_MDADMCONF; then
    rm -f /etc/mdadm/mdadm.conf /etc/mdadm.conf
    ln -s $(command -v mdraid-cleanup) $hookdir/pre-pivot/31-mdraid-cleanup.sh 2>/dev/null
fi

# noiswmd nodmraid for anaconda / rc.sysinit compatibility
# note nodmraid really means nobiosraid, so we don't want MDIMSM then either
if ! getargbool 1 rd.md.imsm -n rd_NO_MDIMSM || getarg noiswmd || getarg nodmraid; then
    info "no MD RAID for imsm/isw raids"
    udevproperty rd_NO_MDIMSM=1
fi

# same thing with ddf containers
if ! getargbool 1 rd.md.ddf -n rd_NO_MDDDF || getarg noddfmd || getarg nodmraid; then
    info "no MD RAID for SNIA ddf raids"
    udevproperty rd_NO_MDDDF=1
fi