While I was backing up a few containers in Proxmox today, one of them became unresponsive. I tried to cancel the backup but it just became locked. Restarting the server didn’t help, so after browsing the Proxmox support forms, I found the following solution detailed below.
First, we’ll list the status of the containers.
It will show a list of containers and their status.
VMID Status Lock Name 100 stopped Locked DNS Server 101 running Network Shares 102 running Linux
Next, we could try stopping and manually unlocking the container with the following commands below.
qm stop <VM ID> qm unlock <VM ID>
But, if that doesn’t work, try the following command.
pct unlock <VM ID>
And after running those commands, my container was back up and running.