Add ProLiant notes

config/hardware/hp-proliant.md

@@ -23,5 +23,11 @@ breadcrumbs:
 ## Storage
 
 - Gen8 requires genuine HP drives and caddies for Gen8 to work properly. When using unsupported drives, the server will be super noisy. HP drives generally are both more expensive and have less performance than the alternatives, making it a a potentially unattractive option for homelabs. This may be somewhat true for previous gens as well (I don't know, I don't have any), but Gen8 is especially restrictive.
+- A CD-ROM to 2.5" SATA drive adapter can be used to boot any SATA drives from the internal SATA controller. This avoids the problems with drive compatibility for the RAID/HBA controller mentioned above.
+
+## Booting
+
+- Gen8 and lower generally does not support UEFI.
+- To allow booting from USB drives, enable it in the setup utility under "System Options", "USB Options".
 
 {% include footer.md %}