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Cheat Sheet: virt-install

virt-install is used to build and install new VMs.

Installation

You have to install virt-install.

Debian/Ubuntu

sudo apt-get update && sudo apt-get install virt-install

Redhat/CentOS/Fedora

If you are using the good ol' yum.

sudo yum install virt-install

If you are using the new dnf.

sudo dnf install virt-install

OpenSuSE/SLES

sudo zypper ref && sudo zypper install virt-install

Arch Linux

sudo pacman -S virt-install

Creating VMs

Virt-install is a little bit more complicated. Therefore I will only provide a pattern for some typical use cases.

virt-install \
  --name <name> \
  --memory <RAM in MB> \
  --vcpus <CPU Cores> \
  --os-type <mostly linux> \
  --os-variant <variant name> \
  --disk size=<Disk Size in GB> \
  --network <name of network> \
  --location <location of ISO or Repository> \
  --extra-args="<additoonal kernal parameter for the installer>"

For the --extra-args you can use kickstart configurations for example. YOu can find additional information for kickstart in this repository.