Proxmox - Guests (VMs and Containers) - Qemu-guest-agent - Install Qemu-guest-agent

sudo apt install qemu-guest-agent

sudo yum install qemu-guest-agent

Download the virtio-win driver iso (see Windows VirtIO Drivers).

• Install the virtio-serial driver:
  • Attach the ISO to your windows VM (virtio-*.iso)
  • Go to the Windows Device Manager.
  • Look for PCI Simple Communications Controller
  • Right Click → Update Driver and select on the mounted iso in DRIVE:\vioserial\<OSVERSION>\ where <OSVERSION> is your Windows Version (e.g. 2k12R2 for Windows 2012 R2).

After that, you have to install the qemu-guest-agent:

• Go to the mounted ISO in explorer.
• The guest agent installer is in the directory guest-agent.
• Execute the installer with double click (either qemu-ga-x86_64.msi (64-bit) or qemu-ga-i386.msi (32-bit).

After that the qemu-guest-agent should be up and running.

• Validate this in the list of Window Services, or in a PowerShell with:

PS C:\Users\Administrator> Get-Service QEMU-GA

returns:

Status   Name               DisplayName
------   ----               -----------
Running  QEMU-GA            QEMU Guest Agent

Depending on the distribution, the guest agent might not start automatically after the installation.

Start it either directly with

sudo systemctl start qemu-guest-agent

Then enable the service to autostart (permanently) if not auto started, with

sudo systemctl enable qemu-guest-agent

qm set VMID --agent 1

• Navigate to Options.
• Enable to Guest Agent.

The communication with the guest agent takes place over a unix socket located in /var/run/qemu-server/<my_vmid>.qga.

Test the communication qm agent:

qm agent <vmid> ping

https://pve.proxmox.com/wiki/Qemu-guest-agent