On my command line, I typed
man -k virtual, and found
dpkg -S vmbuilder shows it's in the
man vmbuilder says:
vmbuilder - builds virtual machines from the command line
vmbuilder <hypervisor> <distro> [OPTIONS]...
<hypervisor> Hypervisor image format. Valid options: xen kvm vmw6 vmserver
<distro> Distribution. Valid options: ubuntu
This manual page documents the vmbuilder command. vmbuilder is a program that builds virtual machines from the command
line, but can have other interfaces implemented through its plugin mechanism. You can pass command line options to add
extra packages, remove packages, choose which version of Ubuntu, which mirror etc. On recent hardware with plenty of
RAM, tmpdir in /dev/shm or using a tmpfs, and a local mirror (see apt-proxy or apt-mirror), you can bootstrap a vm in
less than a minute.
Note: I don't use this package, so YMMV.