PicoBSD

PicoBSD was a single-floppy disk version of FreeBSD, one of the BSD operating system descendants. In its different variations, PicoBSD allows one to have secure dialup access, a small diskless router, or even a dial-in server, all on only one standard 1.44MB floppy. It runs on a minimum 386SX CPU with 8MB of RAM (no hard disk required).

PicoBSD is freely available under the BSD license. The main developer was Andrzej Bialecki, and the latest version is 0.42. Dinesh Nair had then backported the PicoBSD build scripts to FreeBSD 2.2.5, allowing the addition of a few more binaries in the dialup flavour due to FreeBSD 2.2.5's smaller binary executable format.

With flexibility that FreeBSD gives, along with the full source code being available, one can build a small installation performing various tasks, including (but not limited to):

*Diskless workstation
*Portable dial-up access solution
*Custom demo-disk
*Embedded controller (flash or EEPROM)
*Firewall
*Communication server
*Replacement for commercial router
*Diskless home automation system
*And many others

In FreeBSD 5, it has been superseded by the NanoBSD framework.

See also

* Comparison of BSD operating systems

Further reading

* PicoBSD is included in the FreeBSD source files. It can be built by looking in /usr/src/release/picobsd/