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# vim:set ft=sh:
run_hook ()
{
    /sbin/modprobe -q dm-mod >/dev/null 2>&1
    if [ -e "/sys/class/misc/device-mapper" ]; then
        if [ ! -e "/dev/mapper/control" ]; then
            local major minor
            IFS=: read major minor < /sys/class/misc/device-mapper/dev
            mkdir /dev/mapper
            mknod "/dev/mapper/control" c ${major} ${minor}
        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..."
        [ -d /etc/lvm ] && /sbin/lvm vgscan
        eval /sbin/lvm vgchange --sysinit -a y $LVMQUIET
    fi
}