tomsrtbt is the most Linux on one floppy disk for rescue recovery panic and emergencies, contains tools to keep in your shirt pockets, is useful whenever you can't use a hard drive and contains about 100 rescue tools.

Tom's Root Boot) is a very small Linux distribution—Mini Linux. It is short for "Tom's floppy which has a root filesystem and is also bootable (bootfloppy)." The author touts it as "The most GNU/Linux on one floppy disk", containing many common bash commands useful for system recovery (Linux and other operating systems) and for creating Linux machines without a hard disk.