MultiBootUSBcan assemblemultiple liveLinuxdistributionson an USB disk.It presents aboot menu, andworksnon-destructivelyon flash disks,can evenuninstalldistributionsagain. Itfurthermoreworkscross-platform,and can createLinux USB bootdisks fromWindows.
rEFInd is anEFI bootmanager (forkedfrom rEFIt),thatautodiscoversinstalled bootloaders, andpresents astartup GUI. It supports EFI1.x and 2.x, PCand MACsystems, has atext fallback,can control theboot order andsearchingschemes,handles SecureBoot, or startavailable EFI(BIOS)utilities, andunderstandsmost BSD/Linuxpartitiontypes.