core/mdadm/mdadm_hook

#!/usr/bin/ash

run_hook() {
    local i= mdconfig=/etc/mdadm.conf

    # for partitionable raid, we need to load md_mod first!
    modprobe md_mod 2>/dev/null

    if [ -n "$md" ]; then
        echo 'DEVICE partitions' >"$mdconfig"
        for i in $(cat /proc/cmdline); do
            case $i in
                # raid
                md=[0-9]*,/*)
                    device=${i%%,*}
                    device=${device/=/}
                    array=${i#*,}
                    echo "ARRAY /dev/$device devices=$array"
                    ;;
                # partitionable raid
                md=d[0-9]*,/*)
                    device=${i%%,*}
                    device=${device/=/_}
                    array=${i#*,}
                    echo "ARRAY /dev/$device devices=$array"
                    ;;
                # raid UUID
                md=[0-9]*,[0-9,a-fA-F]*)
                    device=${i%%,*}
                    device=${device/=/}
                    array=${i#*,}
                    echo "ARRAY /dev/$device UUID=$array"
                    ;;
                # partitionable raid UUID
                md=d[0-9]*,[0-9,a-fA-F]*)
                    device=${i%%,*}
                    device=${device/=/_}
                    array=${i#*,}
                    echo "ARRAY /dev/$device UUID=$array"
                    ;;
            esac
        done >>"$mdconfig"
    fi

    # assemble everything
    [ -s "$mdconfig" ] && /usr/sbin/mdassemble
}

# vim: set ft=sh ts=4 sw=4 et: