[SOLVED] PVE 7: After installation no network and no console working

[alh]

Yesterday I tried to install a PVE 7 environment on a Hetzner AX51 server. During the installation I could ping its IP address while it was booted from the install iso just fine.

After the installation the machine reboots and there is no network anymore. Also the console is dead and I cannot even login to see what went wrong.

Today I installed PVE 6.4 and everything is just working fine.

 

[Moayad]

check this post

 

[alh]

Thanks a lot for your reply. But I don't have a console so how could I change this? During installation there is not much I can do or is there?

 

[Moayad]

maybe you can do that if hetzner has a Rescue mode or remote console

 

[alh]

The remote console won't work, tried that...

So your suggestion is to boot from rescue system, install zfs driver etc., mount the pool and then make the changes?

 

[alh]

I will try to upgrade vom 6.4 to 7.0 so that I can prepare beforehand. Do I understand correctly that I should add

hwaddress to enp7s0

NOT to vmbr0?

 

[Moayad]

No,

Just set rescue mode on your server then login with SSH to your server

When you connect just do the following command to start your server

qemu-system-x86_64 -enable-kvm -smp 4 -m 4096 -drive file=/dev/<BootDisk>,format=raw,media=disk  -vnc 127.0.0.1:1

replace the /dev/<BootDisk> to your bootable disk.

then switch the VNC port to your port 8888 local using ssh tunnel:

ssh -L 8888:127.0.0.1:5901 root@YourServerIP

finally, you can able to login to PVE and change the network config

 

[Moayad]

Do I understand correctly that I should add

hwaddress to enp7s0

NOT to vmbr0?

to the bridge [vmbr0]

 

[alh]

OK, will try as outlined here.

https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0#Known_upgrade_issues

 

[alh]

After adding hwaddress to vmbr0 I upgraded to v7 and the network was functioning.

 

[Moayad]

Glad that you solve your issue yourself

FYI: https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0#Check_Linux_Network_Bridge_MAC

 

[PeterRoux]

I deleted the MAC address for the VMs and Containters in the Proxmox GUI which then reset them to auto. After logging back in they worked fine, without needing to hard-code the MAC in the network file.