Proxmox Prep & Notes

Install Updates

nano /etc/apt/sources.list

Comment out enterprise subscription (pve-enterprise), unless you have a subscription:

nano /etc/apt/sources.list.d/pve-enterprise.list

apt-get update && apt dist-upgrade

Restart the systems after update:

shutdown -r now

Enable PCIe Passthrough (IOMMU)

This sub-section may be outdated. With the release of the latest Proxmox, IOMMU may be enabled by default.

Verify IOMMU is enabled by running the following:

dmesg | grep -e DMAR -e IOMMU

There should be a printout with DMAR: IOMMU eanbled.

Comment out and/or modify GRUB_CMDLINE_LINUX_DEFAULT:

nano /etc/default/grub

For Intel-based systems, add:

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on"

update-grub

nano /etc/modules

Add the following lines:

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

Reboot:

shtudown -r now

Enable VLAN

nano /etc/network/interfaces

Add:

bridge-vlan-aware yes

Or, in GUI: Network > Bridge > check VLAN Aware

To restrict Proxmox to specific VLAN:

nano /etc/network/interfaces

Add:

bridge-vids 10 # where 10 is the VLAN you want to use

NIC Teaming

nano /etc/network/interfaces

Disable existing bridge vmbr0, if exists.

iface bond0 inet manual
    bond-slaves eno1 eno2
    bond-miimon 100
    bond-mode 802.3ad
    bond-xmit-hash-policy layer2+3

auto vmbr0
iface vmbr0 inet static
    address x.x.x.x/24 #change IP
    gateway x.x.x.x #change gateway IP
    bridge-ports bond0
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094

Template Cloning

When using template, use full clone. Also, change hostname, host file, and machine ID.

In guest machine, change hostname:

sudo nano /etc/hostname

sudo nano /etc/hosts

Change machine ID:

sudo rm -f /etc/machine-id

sudo dbus-uuidgen --ensure=/etc/machine-id

sudo rm /var/lib/dbus/machine-id

sudo dbus-uuidgen --ensure

Verify machine ID matches:

cat /etc/machine-id

cat /var/lib/dbus/machine-id

Restart processes:

sudo nano /etc/network/interfaces

sudo service networking restart

Additional Resources

VirtIO Drivers

For Internal Use: \Machine Notes\2022 Proxmox Notes & Prep