ttylinux

http://www.minimalinux.org/ttylinux/
a small GNU/Linux system available for several CPU architectures. This small system has an 8 MB file system and runs on i486 computers within 24 MB of RAM, but provides a complete command line environment and is ready for Internet access.

The goal this project is to make one of the smallest up-to-date Linux systems that is similar to a larger distribution.

End users may want to use ttylinux on old computers for accessing the Internet, or bootable on a USB disk for a portable system. Developers may want to use ttylinux for their embedded systems.