Proxmox

Links¶

In VirtualBox: see the guide
Remove Subscription notice with pve-nag-buster
- wget https://raw.githubusercontent.com/foundObjects/pve-nag-buster/master/install.sh && chmod +x install.sh && ./install.sh
- Then disable the entreprise repository
Trove of scripts
- Change CPU Scaling Governor to powersave to save some previous Watts
SSH port shouldn't be changed as it is used for cluster things
- Setup Cloudflare DNS with Proxmox: Guide

See this Wiki page and this documentation page
Add intel_iommu=on or amd_iommu=on to the GRUB or systemd-boot (in UEFI)
- IOMMU Passthrough can also be added if supported with iommu=pt
Edit /etc/modules and add vfio vfio_iommu_type1 vfio_pci vfio_virqfd
update-initramfs -u -k all
Reboot
Check if active with PCI Express
Check IOMMU groups with PCI Express

Disk copy
- Copy the raw file from TrueNAS to Proxmox - ZFS with dd
- Import the raw file with qm importdisk <VMID> /path/to/file.raw local --format qcow2
- Attach the disk to the VM with VirtIO
Other settings from TrueNAS
- Boot loader: UEFI
- Display: SPICE

Set up permissions
- New role with VM.Console, VM.Audit
- New group
- New permission for the group with the role and the necessary path
- New user in the PVE realm assigned to the group
Set up token
- Create API Token, with Privilege Separation
- In each VM, assign the API token to the Role created
Choose a script option
- cv4pve-pepper
- Linux only script: PVE Spice Connect

System
- QEMU Agent: enabled
  - Need to be installed with qemu-guest-agent or Fedora VirtIO drivers
- Machine type: q35 + BIOS: OVMF for PCI Passthrough, otherwise default is fine
CPU
- Type:
  - x86-64-v3 works fine
  - host will match the Host CPU, but will impact migration to to other systems
Memory
- Ballooning: enabled
- Minimum memory: don't use on Windows
- 1 GB must be made available for the host
Network
- Type: VirtIO
Display
- Type: std or qxl for SPICE
Firmware
- SeaBIOS by default
- OVMF for Windows 11 and PCI Express
  - pre-enroll-key for Windows keys + Secure Boot on
  - Virtual screen resolution is set in the VM BIOS
Storage
- Controller: VirtIO SCSI (source) single with IO Thread enabled
- Image Format: raw disk image by default if you use LVM or ZFS
- Cache: none (source)
- Discard: enabled + SSD emulation: enabled, to let the OS TRIM
- IO Thread: enabled
For Windows
- Disable tablet device (source)
- Use raw disk (source)
- Don't use VirtIO

Make sure that things are zeroed
- Make sure that Discard is on
- Resize a partition
Change the size (source)
- If LV: lvreduce -L 5G /dev/pve/disk-name (reduce to 5G) or lvreduce -L -5G /dev/pve/disk-name (reduce by 5G)
- If qcow2: qemu-img resize --shrink <vmfile.qcow2> [+-] or size
- If ZFS: zfs set volsize=<new size>G rpool/data/vm-<vm id>-disk-<disk number>
  - Find the ZFS path with zfs list
Update Proxmox: qm rescan
If you use GUID Partition Table