I have a Proliant ML310e Gen8 server which I plan to use as a fileserver with ZFS. For ZFS purposes the hot-swap cage is set to AHCI mode instead of RAID. My OS drive is installed on the spare motherboard SATA port (port 6).
The BIOS only offers a single "Boot from hard drive" option, which appears to always look for a drive by order of SATA ID. This means the server insists on attempting to boot from the drives in the hot-swap cage, which results in boot errors (there is no MBR on these drives, intentionally).
How do I reconfigure the BIOS to use the drive on SATA port 6 as the primary boot device?