When moving my desktop (which I had joined to my ProxMox cluster) to a new environment I found I couldn’t start any VMs because there was no quorum. I couldn’t even get it to run “pvecm expected 1” because corosync wouldn’t start. I would see these errors in the log:
Totem is unable to form a cluster because of an operating system or network fault. The most common cause of this message is that the local firewall is configured improperly.
I found on this forum post that you can tell proxmox to run in local mode (not trying to be in a quorum)
sudo systemctl stop pve-cluster sudo /usr/bin/pmxcfs -l
Success! This caused my node to run in local node, which let me run my Windows gaming VM in another location.
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