How to install Windows Home Server Vail with unsigned SATA/RAID drivers, or The Abit UL8.

1. Boot off of install media, as usual.
2. Hit Shift-F10 to open a command prompt.
3. It should open in X:\\sources, CD into X:\\sources\\recovery.
4. run RecEnv.exe
5. Hit next on the Select your keyboard layout window, then click load drivers.
6. Browse for and load your unsupported SATA drivers.
7. Leave the recovery window open, and continue with installation, your unsupported hard drives should now appear.

EDIT: This should also work for Windows 7 and possibly 8 (Haven’t tried). You may need to boot with signature checking disabled.