At times, it is useful to have a deployed infrastructure of N machines to see how networking works, how the cluster shards on nodes, etc.
From time to time I remember how I did it last time. But this time I decided to just write this simple set of commands, so as not to remember, not to look.
Install the packages:
sudo aptitude install qemu-kvm libvirt-bin virtinst virt-viewer
if you use Ubuntu / Debian / Linux Mint and other Debian-based.
Create a folder that will contain images of virtualos.
mkdir ~/virt && cd ~/virt
Create an empty image.
fallocate -l 8192M guest1.img
Run the installation in the desired image, the desired iso file:
sudo virt-install -r 512 --accelerate -n deb1 -f guest1.img --
I needed Debian this time, but I can also install Windows if fate forces me to.
Now you can administrate it with: