Given these settings on your x86-based server: 
You connected a console to the serial port (COM1) and you want to setup your server so that it
uses the console that you connected. Which describes how to make the system recognize the
console for bootup and not the VGA monitor and keyboard?
A.
Set the console property to ttya as follows: kernel /platform/i86pc/multiboot -B console=ttya
B.
The x86 platform does not support booting from a serial port.
C.
Select to boot from the Solaris Serial Console ttya in the GRUB menu.
D.
Change the PROM settings so that kbd-type=serial, ttya-mode matches the port settings for the
new console, and console=ttya
E.
No changes to the PROM are required. Shutdown the system and disconnect the VGA monitor
and keyboard before booting. The system console will default to the serial port.
Explanation: