Around line 71 in /sbin/ifup there is a line that reads: ifenslave $RFLAG "$DEVICE" "$MASTER" This is backwards, it should be: ifenslave $RFLAG "$MASTER" "$DEVICE" as per ifenslave usage Usage: ifenslave [-afrvV] <master-interface> <slave-interface> [metric <N>]
fixed in latest initscripts (3.98-2, or so)