确保内核模板被加载

[shell]代码库

MODPROBE="/sbin/modprobe"
PROC_DRBD="/proc/drbd"
ADD_MOD_PARAM=""

assure_module_is_loaded()
{
    [ -e "$PROC_DRBD" ] && return

    $MODPROBE -s drbd $ADD_MOD_PARAM || {
        echo "Can not load the drbd module."$'\n'
        exit 5 # LSB for "not installed"
    }
}