MultiBootUSB is a cross platform* software/utility to create multi boot live Linux on a removable USB disk. It is similar to UNetbootin but many distros can be installed, provided you have enough space on the disk. MultiBootUSB also provides an option to uninstall distro(s) at any time, if you wish.
scripts and minimal binary packs to migrate from one distro to another
Assume you have a linux box with an outdated linux.
You would like to perform an upgrade, but you would like to avoid burning a CD or even making a bootable USB flash. The machine may even be somewhere where you do not even have physical access.
You already have a running kernel and a working network connection. Why not use them to get your new linux running directly?
Many distributions already provide a network install but getting the installer to run on your old linux proves...