# install some prerequisities for kvm
sudo apt -y install bridge-utils cpu-checker libvirt-clients libvirt-daemon qemu qemu-kvm
# create LVM and filesystem
lvcreate -L 500G -n vms ubuntu-vg
mkfs.ext4 /dev/mapper/ubuntu--vg-vms
# mount it in fstab
# /dev/mapper/ubuntu--vg-vms /srv/vms ext4 defaults 0 0
# install vagrant
apt install vagrant