Boot parameters for SCO6 on HP Gen8 servers (officially unsupported)

Install an extra P400 controller and connect the drives cage to it. Do not disable the on-board i400!
Install an extra E1000 dual NIC, as the onboard BCMs are not recognized by the kernel.

In BIOS, switch the sata controller to ahci and boot.

The following parameters allow you to boot and install OSR6 on Gen8:
 USE_XAPIC=Y ACPI=Y MULTICORE=N ENABLE_4GB_MEM=N

After the installation is done ( see sco-sysv-on-hp-server-install-notes ), only USE_XAPIC=Y have to be added to /etc/default/boot.