the multi-nic issue...

[Xavier Logerais]

Hi,

I observed the same issue (situation 1) with servers with two nics connected to the same lan.
After reading the script /scripts/live-premount/select_eth_device from initrd I tried to set live-netdev=eth0 on kernel cmdline and this does the trick for me.

Hope this will help.

Regards,

-- 
Xavier Logerais
  Ingénierie Système NC Numericâble
  Tel : 01-70-01-44-69

Le mercredi 06 avril 2011 à 16:25:55 (+0200), Alexander Swen a écrit:
> hi,
> 
> I saw that some blokes in this group have had similar problems while trying to
> startup the fai setup when booting a server with more that one nic connected,
> resulting in a nic infinitely waiting for a dhcp offer. (hang at ip-config)
> I've got the same. however, while most had the problem with nics connected to
> different (v-)lans I've got it with all of them connected to the same lan. (at
> a later stage they are bonded).
> 
> weird thing is that te machine every now and then (1 out of 5, sometimes 6
> times) continues. the difference seems to be if the second interface is also
> sending out a dhcp discovery, then the first accepts the offer he's receiving
> while there will be no response from the 1st nic after a offer when the 2nd
> hasn't sent out the dhcp discovery message.
> 
> (tcpdump on dhcp server learns me:)
> 
> so resume:
> situation 1 (not successful)
> server boots
> ipconfig starts and eth0 sends dhcp discovery.
> dhcp server sends offer
> nothing happens... (hang)
> 
> situation 2 (successful)
> server boots
> ipconfig starts and eth0 sends dhcp discovery.
> eth1 sends dhcp discovery as well
> dhcp server sends offer
> eth0 sends dhcpd req to dhcpserver
> get ack, boot continues
> nothing happens...
> 
> now, it could be that the switch config has something to do with this (i mean,
> while I am tcpdumping on a remote machine I only hear what comes in on the
> interface, what not necessarily means that nothing more has been sent out)
> 
> thanks for any help
> Alex
> 
> 
> Met vriendelijke groet,
> Alexander Swen
>