Home Assistant OS in Proxmox VM: Emergency Shell, Missing Docker Containers, Disk Issues

Hello everyone,

My Home Assistant OS installation in a Proxmox VM is not starting anymore. Instead, I end up in the Emergency Shell. I found out that all Docker containers are missing, as the command docker ps -a shows an empty list, but the images are still there. The Supervisor service also seems to not start, and the Docker service is not starting either.

Recently, I tried to shrink the VM disk that I had previously enlarged using gdisk, sgdisk, and zfs set volsize, as well as gparted, but it seems that this attempt failed. I can still access the partition from the Proxmox host, which might be relevant. Additionally, I have access to the log files.

I have backups available, but they are unusable due to the wrong backup key.

I would appreciate any help to get this VM running again or to export the existing data. Thank you!