The CRK boots a complete mini Linux with networking with complete hardware support from the Linux kernel.

Emergency backup system for if one has only a Pilot and must do a full restore after a hard reset: one bootable 3.5" floppy disk with full OS, utilities, communication software for all kinds of Pilots (OS 1.x - 3.x), nice easy-to-use menu system.

Rescue and recovery packages on Sunsite

Boot/root rescue/emergency floppy image with more stuff than can fit. Bzip2, 1722Mb formatting, and tight compilation options helped jam a lot on. It is useful for "learn unix on a floppy" as it runs from ramdisk, includes the man-pages for everything, and behaves in a generally predictable way.