MultiBoot USB
This is a collection of GRUB scripts that allows to create a bootable pendrive (USB dongle, flash stick) supporting a number of different OS images. Simply copy ISO files under `/iso-imgs`. Both UEFI and Legacy BIOS boot modes can be enabled simultaneously.
Boot-Repair-Disk, the ‘must-have’ rescue CD! Here is THE Rescue Disk that you should keep close to your computer! runs automatically Boot-Repair rescue tool at start-up; also contains the OS-Uninstaller and Boot-Info tools; repairs recent (UEFI) computers as well as old PCs