We want to create some accounts that can do most basic things with bash, but in a chroot jail.
Install a rpm based Linux Distro in a chroot under debian
wie entkommt man einem chroot jail
Do whatever you like, install, change and remove files from the system, and no harm whatsoever. Your real system stays untouched. This may sound like magic, but is in reality just possible by combining some techniques from all those available for Linux.
install Ubuntu directly from Ubuntu using debootstrap