debootstrap

Create a basic Debian system. More information: https://wiki.debian.org/Debootstrap.

• Create a Debian stable release system inside the debian-root directory:

sudo debootstrap stable path/to/debian-root/ http://deb.debian.org/debian

• Create a minimal system including only required packages:

sudo debootstrap --variant=minbase stable path/to/debian-root/

• Create an Ubuntu 20.04 system inside the focal-root directory with a local mirror:

sudo debootstrap focal path/to/focal-root/ file:///path/to/mirror/

• Switch to a bootstrapped system:

sudo chroot path/to/root

• List available releases:

ls /usr/share/debootstrap/scripts/