Re: [Xen-users] Networking not coming up on dom)

[Jim <jim@xxxxxxxxxxxxxxxxxx>]

Jim wrote:
> I have two systems that are running identical distros as far as I can 
> tell.  One works just fine, the other doesn't bring up any network 
> devices other than the lo ,eth0 and eth1.  Both are using dhcp.  The 
> files in /etc/networking are identical on both systems as are the 
> files in /etc/xen/scripts.  I'm using the Ubuntu edgy xen kernel in 
> both cases.  Nothing in any log file that I can see that looks 
> suspicious, syslog or xen logs or dmesg.  The working hardware is an 
> Intel 6300 the other, AMD Athlon(TM) XP 2200+.  I can boot a FC5 xen 
> system that  works as it should.  A debian guest boots fine, however 
> with no bridge it has no internet connectivity.  I tried to add a line 
> in the interfaces file to bring up the xenbr0 device but that failed 
> with a message  "no such device".
> Where is this magic supposed to happen?
>
> Thanks,
> Jim.
>
> So the question is, how do I go about determining what step is failing?
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I've been digging through the network scripts and have found the 
answer.  I have two ethernet ports in this system and in the 
network-bridge script is this line:
vifnum=${vifnum:-$(ip route list | awk '/^default / { print $NF }' | sed 
's/^[^0-9]*//')}
vifnum will contain a zero and a one separated by a newline.  This 
causes the script to fail sort of siliently.  I hardcoded vifnum to 1 
and all is working fine.
I find this a bit surprising since I know there are people running 
multiple ethernet ports successfully. 

So this is a bug?  If so, is it a ubuntu  or xen bug?

Thanks,
Jim.

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