Technical
LVM thin in the same VG as virtual machines: yes, you can mix them
You can mix LVM-thin and regular LVM volumes in the same Proxmox volume group. Here's the storage.cfg setup and the thin pool exhaustion caveat.
Technical
Proxmox exclude disk from snapshot: move it to a storage that doesn’t support snapshots
Proxmox has no per-disk snapshot toggle. To exclude a disk from a VM snapshot, move it to a storage that doesn't support snapshots, like a directory or NFS
Technical
vzdump Backup Retention Off-Site Transfer: Prune Copies After They Leave
Retention for vzdump backups after off-site transfer means pruning both local and remote copies. Here's the script I'd run and when PBS is worth it.
Technical
Proxmox Hookscript Not Running: Trace the Invocation Path and Fix It
Proxmox hookscript not running? Check the executable bit, storage enablement, and task log output.
Technical
Disable server shutdown/restart from the web interface with a custom Proxmox role
Disable server shutdown/restart from the web interface by creating a role without Sys.PowerMgmt and assigning it to users.
Technical
Ceph OSDs not being able to be configured in fully routed Environment: fix the network first
Ceph OSDs not being able to be configured in a fully routed environment usually means the public and cluster networks aren't reachable. Here's the fix.
Technical
Unable to Start VM with Hookscript Proxmox: Trace the Invocation Path and Fix It
Unable to start VM with hookscript Proxmox? It's usually the executable bit, a bad exit code, or the script not where qm expects it. Here's the full path.
Technical
Proxmox VM Fingerprint: What the Guest Can See and Which Identifiers You Can Change
A stock Proxmox VM leaks SMBIOS UUID, serial, MAC OUI, and the hypervisor CPUID bit. Here's exactly which ones qm set can change and which you can't touch.
Technical
Metasploitable2 Proxmox: Import the VMDK with qm importdisk
Metasploitable2 runs fine on Proxmox if you import the VMDK with qm importdisk and set the network to NAT. Here's the exact procedure.
Technical
Proxmox VM Unreachable After New Install: Narrow It Down With ip and bridge Commands
Proxmox VM unreachable after new install? Use ip and bridge commands to isolate host, bridge, or guest layer. Here's the sequence that finds it.