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From: "Eggert, Lars" <lars@netapp.com>
To: Andre Oppermann <andre@freebsd.org>
Subject: Re: mounting root from NFS via ROOTDEVNAME
Thread-Topic: mounting root from NFS via ROOTDEVNAME
Thread-Index: AQHN/WoQ3bLz4fhIpUOOqbDPPwYM3JhhN1MAgADtYYCAAMxdgIAA5iiAgAAHMgCAAASQAA==
Date: Thu, 31 Jan 2013 12:09:40 +0000
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Cc: Craig Rodrigues <rodrigc@crodrigues.org>,
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On Jan 31, 2013, at 12:53, Andre Oppermann <andre@freebsd.org>
 wrote:
> The interface doesn't have a name during loader stage.  The kernel
> finds the interface to use based on the MAC address.  You should
> set boot.netif.hwaddr as well in the kernel environment.

Done, no change. Here is what's in my loader environment:

boot.netif.netmask   255.255.255.0
boot.netif.gateway   10.11.12.13
boot.nfsroot.server  10.11.12.13
boot.nfsroot.path    /usr/home/elars/dst
boot.netif.ip        10.11.12.15
boot.netif.name      em4
boot.netif.hwaddr    xx:xx:xx:xx:xx:xx
vfs.root.mountfrom   nfs:10.11.12.13:/usr/home/elars/dst

And here is what I see during boot:

Trying to mount root from nfs:10.11.12.13:/usr/home/elars/dst []...
mountroot: waiting for device 10.11.12.13:/usr/home/elars/dst ...
Mounting from nfs:10.11.12.13:/usr/home/elars/dst failed with error 19.

Lars