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I have a port of Alan Cox's Fuzix for the MSP430 where the entire bootable ROM image is 27kB. (That's actually quite big for a tiny-computer OS, although it's
by david-given 11y ago
I have a port of Alan Cox's Fuzix for the MSP430 where the entire bootable ROM image is 27kB.
(That's actually quite big for a tiny-computer OS, although it's the smallest Unix I know of.)
- DiabloD3 11y agoFor those who don't know who Alan Cox is, he was the Linux 2.2 branch maintainer, is still heavily involved in Linux, and also does lots of other neat shit.
- cbsmith 11y agoI seem to recall the QNX kernel is pretty slim as well.
- pjc50 11y agoI used to have a 1.44Mb floppy that booted QNX to a desktop environment. Of course, that's not so unusual historically: both Amiga and GEM had single-floppy desktop enviroments (or did the Amiga require two to get to Workbench?)
- david-given 11y agoThat's just the microkernel, though --- it didn't contain any functionality other than sending messages (and a few other things, microkernels very). Fuzix' 27kB contains the scheduler, drivers, tty, file system and Posix subsystem!
- cbsmith 11y agoFuzix definitely was end to end. On the other hand, the QNX kernel is a more capable foundation to build on.