Red Hat Summit Red Hat SummitSuporteConsoleDesenvolvedoresComeçar um testeContato

Este conteúdo não está disponível no idioma selecionado.

6.6. Updating Virtual Machine Guest Agents and Drivers

The Red Hat Virtualization guest agents, tools, and drivers provide additional functionality for virtual machines, such as gracefully shutting down or rebooting virtual machines from the VM Portal and Administration Portal. The tools and agents also provide information for virtual machines, including:

  • Resource usage
  • IP addresses
  • Installed applications

The guest tools are distributed as an ISO file that you can attach to virtual machines. This ISO file is packaged as an RPM file that you can install and update from the Manager machine.

6.6.1. Updating the Guest Agents and Drivers on Red Hat Enterprise Linux
Copiar o link

Update the guest agents and drivers on your Red Hat Enterprise Linux virtual machines to use the latest version.

Updating the Guest Agents and Drivers on Red Hat Enterprise Linux

  1. Log in to the Red Hat Enterprise Linux virtual machine.

  2. Update the ovirt-guest-agent-common package: 

    # yum update ovirt-guest-agent-common
    Copy to Clipboard Toggle word wrap

  3. Restart the service:

    • For Red Hat Enterprise Linux 6 

      # service ovirt-guest-agent restart
      Copy to Clipboard Toggle word wrap

    • For Red Hat Enterprise Linux 7 

      # systemctl restart ovirt-guest-agent.service
      Copy to Clipboard Toggle word wrap

6.6.2. Updating Windows drivers with Windows Update
Copiar o link

When you need to update the drivers for a Windows virtual machine, the simplest method is to use Windows Update.

Procedure

  1. Log in to the virtual machine.
  2. Ensure that Windows Update is enabled so you can get updates.
  3. Check Windows Update for updates from Red Hat, Inc.
  4. Manually install any updates that have not been automatically installed.

Additional resources

6.6.3. Updating Windows guest agents and drivers using the command prompt
Copiar o link

When you do not have access to Windows Update to update Windows drivers, or when you need to update the oVirt guest agents, you can do so from the virtio-win package by using the virtual machine’s command prompt. During this procedure, you must remove and reinstall the drivers, which can lead to network disruption. This procedure restores your settings after reinstalling the drivers.

Procedure

  1. If you are updating the drivers, on the Windows virtual machine, use the netsh utility to save TCP settings before uninstalling the netkvm driver: 

    C:\WINDOWS\system32>netsh dump > filename.txt
    Copy to Clipboard Toggle word wrap

  2. On the Manager machine, update the virtio-win package to the latest version: 

    # dnf upgrade -y virtio-win
    Copy to Clipboard Toggle word wrap

    The virtio-win_version.iso file is located in /usr/share/virtio-win/ on the Manager machine.

  3. Upload the ISO file to a data domain. For more information, see Uploading Images to a Data Storage Domain in the Administration Guide.
  4. In the Administration or VM Portal, if the virtual machine is running, use the Change CD drop-down list to attach the virtio-win_version.iso file to each of your virtual machines. If the virtual machine is powered off, click the Run Once button and attach the ISO as a CD.
  5. Log in to the virtual machine.
  6. Select the CD Drive (D:\ for this example) containing the virtio-win_version.iso file.

  7. Reinstall the guest agents or drivers:

    • To reinstall only the guest agents, use qemu-ga-x86_64.msi: 

      C:\WINDOWS\system32>msiexec.exe /i D:\guest-agent\qemu-ga-x86_64.msi /passive /norestart
      Copy to Clipboard Toggle word wrap

    • To reinstall the drivers, use virtio-win-gt-x64.msi: 

      C:\WINDOWS\system32>msiexec.exe /i D:\virtio-win-gt-x64.msi /passive /norestart
      Copy to Clipboard Toggle word wrap

  8. If you are updating the drivers, restore the settings you saved using netsh: 

    C:\WINDOWS\system32>netsh -f filename.txt
    Copy to Clipboard Toggle word wrap
Voltar ao topo
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2025 Red Hat