Proxmox

Virtualized pfSense with VirtIO: no traffic until hardware checksum offload is disabled

With vtnet, FreeBSD drops packets whose checksum was never computed. Tick Disable hardware checksum offload and reboot the VM even though the GUI does not ask; until then no traffic flows.

Windows: convert a running machine to VHDX with Disk2vhd (live P2V)

disk2vhd.exe as administrator, Use Vhdx + Use Volume Shadow Copy, every volume on the system disk, destination on another disk. Then Hyper-V or qm disk import on Proxmox; first boot on SATA and virtio afterwards.

Installing ssacli on Proxmox (HPE Smart Storage) when the guide fails

The HPE repo no longer talks HTTP, the GPG key in every guide is the old one, and the ‘repo removed’ warning is false. Here is the sources.list with HTTPS and the correct GPG-KEY2-mcp.

Export a ZFS ZVOL to a RAW image

A ZVOL is a block device. dd (or qemu-img convert) to .raw. Snapshot first if the VM is up.

Proxmox templates from Linux cloud images (qm + cloud-init)

Five steps: download the cloud image, qm create, import the disk, qm template, clone.