Okay, I accept that there's probably no sensible way for LILO to deal
with RAID-[2345] right now. However, that doesn't mean we should design an
interface that can't support it in a sensible way. To me that means we
should have an index count passed to FIONDEV.
RAID 2,3,4,5 return the data block on the first call and set the
COPIES flag. Subsequent calls set the XOR flag to indicate that the
other blocks should be XORed together to recover the original block.
lilo is perfectly free to ignore this information, but maybe someday
we'll have a good way to use this information.
With RAID 1, lilo can install multiple copies of LILO, one on each disc,
each one told about the blocks which exist on its own disc.
-- Matthew Wilcox <willy@bofh.ai> "Windows and MacOS are products, contrived by engineers in the service of specific companies. Unix, by contrast, is not so much a product as it is a painstakingly compiled oral history of the hacker subculture." - N Stephenson- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/