HAL91 -- minimalistic Linux distribution
This is a very small Linux distribution that fits on one floppy disk.
You need at least a 386 machine (fpu not necessary) with 8 mb ram to run HAL91.
The entire system runs in ram, so you can remove the floppy after booting. The kernel supports IDE hard disks and ATAPI cdrom drives. Supported filesystems are ext2, iso9660 and vfat, optional encryption using AES is possible.