Have you ever wanted to backup your Ubuntu 18.04 machines to PBS? ...no? Well, you can do that now!
Proxmox Backup Client has a mandatory dependency on FUSE 3, which allows you to mount a remote backup locally - you can browse and work with it without downloading the whole archive. Unfortunately, Ubuntu 18.04 and older have FUSE 1/2 in their repositories, and making FUSE 3 work on these is not trivial. But if you don't need this capability, you can try this fork to backup your 18.04 boxes: https://github.com/DragoonAethis/proxmox-backup-defused (binaries in Releases, there's also a GHA workflow to build them from the repo).
All FUSE usage was somewhat crudely patched out (most importantly, the base deps from proxmox.git were not pinned), along with some extra nudging to drop system-provided OpenSSL and zstd libraries. It's not quite statically linked, but the final binaries depend only on libacl1 libuuid1 libattr1 on top of the standard Ubuntu base. This means you can take and run them on pretty much anything from 18.04 to 24.04 without much trouble (or other glibc-based distros, the same binaries run just fine on up-to-date Arch as well).
I'm using this to lift-and-shift some ancient boxes into VMs with safer upgrades and what not. Perhaps you'll find it useful too!
Proxmox Backup Client has a mandatory dependency on FUSE 3, which allows you to mount a remote backup locally - you can browse and work with it without downloading the whole archive. Unfortunately, Ubuntu 18.04 and older have FUSE 1/2 in their repositories, and making FUSE 3 work on these is not trivial. But if you don't need this capability, you can try this fork to backup your 18.04 boxes: https://github.com/DragoonAethis/proxmox-backup-defused (binaries in Releases, there's also a GHA workflow to build them from the repo).
All FUSE usage was somewhat crudely patched out (most importantly, the base deps from proxmox.git were not pinned), along with some extra nudging to drop system-provided OpenSSL and zstd libraries. It's not quite statically linked, but the final binaries depend only on libacl1 libuuid1 libattr1 on top of the standard Ubuntu base. This means you can take and run them on pretty much anything from 18.04 to 24.04 without much trouble (or other glibc-based distros, the same binaries run just fine on up-to-date Arch as well).
I'm using this to lift-and-shift some ancient boxes into VMs with safer upgrades and what not. Perhaps you'll find it useful too!
