duplicate DoC millenium with dd
dwmw2 at infradead.org
Tue Sep 11 18:00:24 EDT 2001
niko at isl.net.mx said:
> yes, this is the problem... right now I'm leaving 1 Meg for the
> linuxBIOS and kernel and right now there is left as little as 40 K
> bytes free space of that meg.
> If I update the software on the chip once a week (it's an automatic
> update via remote server), will it survive for 2 years without
> errors, for example ?
It doesn't degrade over time. Using it the first time may lose the
bad-block information which is put on it by the NAND flash chip
manufacturer (Toshiba or Samsung, not M-Systems). After that there's no
> Wow! that sounds cool! I have to try it, but would linuxBIOS conflict
> with it?
No, should be fine. You could have it appear as three MTD devices - one for
LinuxBIOS, one for the kernel, and one for cramfs.
Using cramfs directly on the NAND flash gives you no error correction and
no facility to work around bad blocks. I wouldn't wan to do it like that in
production, although in practice it'll work unless you have a chip with bad
More information about the linux-mtd