I'm an Arduino (mainly) hobbyist and have programs scattered over 3 64 bit PCs, have an old 120 Gb portable HD and would like to put a bootable, minimal install of Deb 8 on it and do Arduino work so I don't have to keep the 3 boxes synced (PIA). Is there a way to install without GRUB adding OSs like Win 10, Deb 8 (and others) on the installing box to the boot menu? Is there a way to boot as if the HD were a USB stick with sysLinux or something? Also, is there a minimal dist of Deb 8 without all the packages that I will never use?