I am trying to dual boot Windows VIsta and ubuntu. I have four hard drives hooked up to an EVGA motherboard with 9 SATA ports distributed between 3 controllers. 2 of the hard drives are hooked up to one controller (referred to from here on as my primary) , where my bootable CD drive is also connected, and 2 others are hooked up to another one and configured in RAID using JMicron's RAID utility. I'm trying to install ubuntu to one of the hard drives hooked up to my primary, and windows to the other one. The one I'm trying to install ubuntu on is reused- I had it in another computer, and during installation completely reformatted it. Nevertheless, after installation of ubuntu on this computer, the motherboard will simply not boot from the hard disk. Note that if I install ubuntu on the other drive, a brand new VelociRaptor, it works perfectly. Also, note that when I started installing windows, a message came up when it was time to select partition/hard disk to install to. Under the option to select the re-used drive, it warned that the disk "did not appear to bootable", or something to that effect, and to configure the mobo/bios so that it would be. However, both hard drives are enabled in the boot order on my bios, with the old one coming first in order. Any help would be much appreciated.

I am kind of confused. Did you install xp then linux? When you boot to ubuntu cd can you view contents of odd drive? "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

I've built a brand new computer. I first installed ubuntu on a brand new velociRaptor drive, and it worked perfectly. Then I realized the ubuntu on that drive was rather wasted. So, I reformatted that drive, and installed ubuntu on the other drive. I haven't checked if I can see the contents when I use the live CD- I have simply installed ubuntu to the old drive straight up, and it seems to go off without a hitch From this, ubuntu could not boot. In the process of reformatting the velociraptor drive after I mistakingly installed ubuntu, I used a Vista installation dvd, which gave me the warning about not installing to the old drive. When I did finally install ubuntu to this drive, it wouldn't boot.

The only reason I can think of is your grub is on some drive and not pointing to the new install correctly. "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10