dotfiles/devel/kvm.sh

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#!/bin/sh
set -e
DIR=$(dirname "$(readlink -f "$0")")
. "$DIR/../env.sh"
# tips
# 1. to relocate default pool
# ```
# virsh pool-destroy default
# virsh pool-edit default # modify the `update` node
# virsh pool-start default
# ```
# 2. create non-preallocated storage image file (slower performance but smaller size for copying)
# `qemu-img create -o preallocation=off -f qcow2 /path/to/img.qcow2 10G`
# 3. connecting to guest os prerequiste: use system session / guest nic source uses NAT
# install tools for kvm
case "$PM" in
apt)
#sudo apt install libvirt-daemon-system libvirt-clients virt-manager bridge-utils
# cli
case "$DISTRIB_CODENAME" in
xenial)
sudo apt install -y qemu-kvm libvirt-bin bridge-utils cpu-checker
;;
focal|bionic)
sudo apt install -y libvirt-daemon-system libvirt-clients cpu-checker
;;
*)
echo "unsupported os"
exit 1
;;
esac
kvm-ok
# gui
if [ -n "$DISPLAY" ] ;then
sudo apt install -y virt-manager
else
sudo apt install -y virtinst
fi
;;
pacman)
# TODO
sudo pacman -S --noconfirm --needed \
qemu libvirt virt-manager
;;
esac
# configuration
sudo usermod -aG libvirt "$USER"
echo install [spice-guest-tools] on guest os for auto resolution adjustment