amd64/123889: Intel Gigabit Interfaces lost by Update 7.0-> STABLE

Michael Fuckner michael at
Thu May 22 10:10:01 UTC 2008

>Number:         123889
>Category:       amd64
>Synopsis:       Intel Gigabit Interfaces lost by Update 7.0-> STABLE
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-amd64
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu May 22 10:10:00 UTC 2008
>Originator:     Michael Fuckner
>Release:        FreeBSD 7.0-STABLE amd64
System: FreeBSD test31.cluster.local 7.0-STABLE FreeBSD 7.0-STABLE #2: Thu May 22 08:56:52 CEST 2008 root at test31.cluster.local:/usr/obj/usr/src/sys/GENERIC amd64


7.0-RELEASE supports Intels 82575-based Gigabit Chips with em driver. 7.0-STABLE should use igb driver, but this is not activated in GENERIC. So after updating you lose you network interfaces.

install FreeBSD-7-RELEASE, update to STABLE, reboot, have no network nterfaces anymore
insert following line into GENERIC:
device          igb             # Intel 82575-based Gigabit Ethernet


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