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/