[Help] Unable to connect to PVE due to wrong setting up of NIC

[SeanChen]

Hi all PVE gurus,

I accidentally set up wrong NIC for SR-IOV. Now, i cannot get connect to my PVE anymore. I have 4 NICs in total, and NIC1 has been setup for PVE, NIC2 has been passthrough to VM, NIC3 and NIC 4 are unused. I tried to enable NIC1 as SR-IOV for all VMs and set up NIC 3 or NIC 4 for PVE rather than NIC 1 anymore. However, after i completed the setting up of NIC1, I forgot to set up NIC 3 or NIC 4 to PVE. After I reboot the server, I realized the disaster happened, I forgot to set up NIC 3 and NIC 4, and the web UI unable to be visited anymore.

The current situation is the screen is black and no display due to i passed through GPU to VM, and cannot connect to PVE. Please advise how to enable me to connect PVE back under current situation. Much Appreciate.

 

[dcsapak]

one possiblitiy is to boot the host in "single user mode" (similar to https://pve.proxmox.com/wiki/Root_Password_Reset but without the password reset)

this should give a root shell where you can reconfigure your network config