# vim:set ft=sh:
run_hook ()
{
    modprobe -q dm-mod >/dev/null 2>&1

    if [[ ! -e /sys/class/misc/device-mapper ]]; then
        return
    fi

    if [[ ! -e /dev/mapper/control ]]; then
        IFS=':' read maj min < /sys/class/misc/device-mapper/dev
        mknod "/dev/mapper/control" c $maj $min
    fi

    # If the lvmwait= parameter has been specified on the command line
    # wait for the device(s) before trying to activate the volume group(s)
    for pvdev in ${lvmwait//,/ }; do
        poll_device $pvdev $rootdelay
    done

    [[ "$quiet" = y ]] && LVMQUIET=">/dev/null"

    msg "Activating logical volumes..."
    if grep -q 'crypt_iterate_devices ' /proc/kallsyms; then
        eval /sbin/lvm vgscan --ignorelockingfailure $LVMQUIET
    fi
    eval lvm vgchange --sysinit -a y $LVMQUIET
}