This is a project that contains a collection of GRUB files and scripts that will allow you to create a pendrive capable of booting different ISO files.
Parabola GNU/Linux-libre is an unofficial “libre” variant of Arch Linux. It aims to provide a fully free (as in freedom) distribution based on the packages of the Arch Linux project, with packages optimised for i686 and x86_64 processors. The goal is to give the users complete control over their systems with 100% “libre” software. Parabola GNU/Linux-libre is listed by the Free Software Foundation (FSF) as a fully free software distribution. Besides a standard installation CD image, the project also provides a live/rescue DVD image with MATE as the default desktop environment.