Hi,

I had Vista installed on a Raid 0 array with an extra HD for storage. I decided to use this extra storage HD to install XP on so I could set up a dual boot system between two different HD setups, one raid with vista, and one single drive with XP.

I unplugged my raid HDs from the power and sata cables then proceeded to install XP on my single storage HD. After a few attempts due to sata driver issues I finally got a smooth clean install of XP on a single HD. I re-connected my raid drives that had Vista 64 installed on it. I rebooted and got an error message: DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER, which I did of course. Vista loaded and showed my partitioned Raid 0 array but no operating system is shown. It should show Vista 64. So I disabled my Raid option in Bios and XP booted up no problem. So now my question is...how do I get vista to boot back up on my Raid stripe?

RAID boots differently from single drives - I suspect that there's an issue between the RAID and the bootloader. Because of the errors that you're receiving, I wonder if there's a connection of some sort between your RAID boot and the other hard drive. I wonder if your RAID array is initializing/set to the point where it knows to boot from the array (rather than from a single disk)

Not knowing that much about RAID, I'd suggest removing the storage hard drive and repairing the RAID installation with the Vista Startup Repair.

What concerns me (and I don't have the knowledge to explain this) is that the RAID BIOS/array seems (at least on my system) to boot before the boot menu becomes available. So you have to manually turn over control to the RAID array in the BIOS each time. In other words, the system will POST, then you'll have to select the RAID array to boot into Vista - or opt out of the RAID array to boot into XP.

In short, I'd guess that this was a problem with the settings in the RAID BIOS/settings that may not be recognizing the bootability (?) of the array.

There's a similar thread here that may help: http://www.bleepingcomputer.com/forums/topic171184.html