Locked myself out of networking following upgrade from 7->8, do I have options other than reimaging?


Feb 10, 2020
I had an install of proxmox 7 that heavily utilized open-vswitch. Upon upgrade to proxmox 8, I lost networking in the middle of the install as I believe openvswitch was being upgraded. I was able to get in via the idrac console, and the system is up and survives a reboot, but my networking is offline.

I have 4 LACP bonded nics, but since openvswitch is offline, they're not properly bonded, so my intent is to just revert back to the original raw /etc/network/interfaces config. In theory the PVID of the bond on the switch is the correct VLAN so I should be able to set a single static IP on the default bridge and be off and running, but proxmox is showing all my interfaces as down:


/etc/network/interfaces (screenshot as I have no clipboard in idrac):


My switch, on the other hand, shows all those ports as up...it should be ports 1/3/5/7 on the switch (I have removed them from the bond for now but it didn't matter):


The problem is, if I mess with those ports to bring them up, I get told "permission Denied" for using ifup. This is an R710 with Broadcom Nics, I've seen issues with Proxmox 8 with Realtek nics, but that shouldn't impact me:


I'm stumped. I could just wipe it and start over (all vm's are on the other node) but I wonder do I have a way out at this point?


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