Moved Proxmox Drives from Dead Server to New - now no Network.

[OzzNixon]

I have spent the last two days googling, everything is about the VM... but, my problem is the Host.

What file(s) do I need to change to make Proxmox (I think v2.3) work with new NICs?

My configuration from the old server, the interfaces file is very basic, like:

...vmbr0
...address info
...bridge eth0
...etc

I found, I needed to edit a file that stated which MAC address was eth0, etc. I changed eth0 and what was then eth2 and eth2 to eth0... now ifconfig shows the physical hardware of eth0 and vmbr0 shows same HWADDR and IP is showing again.

I do 'route' and everything is right - but, cannot ping 10.1.0.1, 8.8.8.8, etc. I edited 151.conf in hopes to just get the VM working (changed it's HWADDR for eth0 to eth0 - no luck)... so, now I bow my head down and ask - HELP.

Thanks for any assistance on getting this server back online!
Ozz

 

[udo]

I have spent the last two days googling, everything is about the VM... but, my problem is the Host.

What file(s) do I need to change to make Proxmox (I think v2.3) work with new NICs?

My configuration from the old server, the interfaces file is very basic, like:

...vmbr0
...address info
...bridge eth0
...etc

I found, I needed to edit a file that stated which MAC address was eth0, etc. I changed eth0 and what was then eth2 and eth2 to eth0... now ifconfig shows the physical hardware of eth0 and vmbr0 shows same HWADDR and IP is showing again.

I do 'route' and everything is right - but, cannot ping 10.1.0.1, 8.8.8.8, etc. I edited 151.conf in hopes to just get the VM working (changed it's HWADDR for eth0 to eth0 - no luck)... so, now I bow my head down and ask - HELP.

Thanks for any assistance on getting this server back online!
Ozz

Hi,
perhaps an old arp-cache in your gateway?
Can you ping your gateway?
is "ip route" right?

If you look with tcpdump (like tcpdump -i eth0 -n) during an ping 8.8.8.8 you see the right things?

looks traceroute 8.8.8.8 right?

Udo

 

[baggar11]

It's probably the udev rules. Try removing all the rules in your /etc/udev/rules.d/70-persistent-net.rules file and restart. An old rule referring to an old NIC will hold on to eth0 and start assigning eth numbers after that.