Fwiw, I'm not running an add-on card or anything like it - no raid - nothing except a 7042 chip as the the front-end to 2-4 harddrives in my box) - in this case - I am not having a problem... I write this as perhaps a hint to the 'right' direction to go looking for the trouble... all the best~! -----Original Message----- From: Mark Lord [mailto:liml@xxxxxx] Sent: Monday, December 03, 2007 1:32 PM To: Jeff Garzik Cc: hp@xxxxxxxxxxxx; Morrison, Tom; IDE/ATA development list; Tejun Heo; Alan Cox Subject: Re: [PATCH] sata_mv: Fix broken Marvell 7042 support. Jeff Garzik wrote: > Mark Lord wrote: >> The BIOS on the Highpoint RR 2300 *corrupts* the GRUB image, >> so GRUB won't boot for me there. I actually have to re-install >> GRUB after each attempt so that the drive is usable again >> with the onboard Intel (ahci) ports. >> >> So one then wonders exactly what the Highpoint BIOS is overwriting, > > RAID metadata, one would assume from the 'RR'... > > I've no idea if the standard solution is applicable to HPT RR: going > through BIOS setup and turning off RAID completely, or if not possible, > putting it into JBOD mode. .. It's an add-on PCIe board, with it's own onboard "RAID management" BIOS. The onboard BIOS has the drive labelled as "Legacy", but it still seems to insist upon writing it's meta data at every startup. So to boot from it, we may need to find a way to keep our bootloader away from those same sector(s). Cheers - 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