On Mon, 2007-12-03 at 23:10 +0000, Alan Cox wrote: > On Mon, 03 Dec 2007 23:48:44 +0100 > Hein-Pieter van Braam <hp@xxxxxxxxxxxx> wrote: > > > > Man, what a quirky BIOS! > > > > Hum... I can pvcreate on the md device just fine, but after that, pvscan > > won't find it... > > > > I have a suspicion that there's a BIOS doing some sector hiding or > > replacement of sorts... > > > > *facepalm* > > That would make sense. However we have weapons to make it surrender. See > the "dmraid" tool - you should be able to use that as an example of how > to set up device mapper mapped linear mappings to "unshift" partitions. > > Alan I did some testing: First I zero'd the first 80 meg of the md device, then read it back and compared, still all zero's. Then I rebooted and compared again, still all zero's Then I got 8MB of stuff from /dev/urandom, wrote it to a file then wrote it to md device, read it back into a separate file, they still matched. I rebooted and read it back for a third time, and they still matched. I'm not sure if this means anything or not, but I was wondering if my assertion of BIOS muckery still made sense HP -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
