Solaris 10 11/07: Changes have been made to the GRUB bootloader that enable the direct loading and booting of the unix kernel. The GRUB multiboot module is no longer used. If the multiboot module from the previous GRUB implementation is loaded by GRUB, the console displays an error message upon system boot. For more information about what to do if this error message is displayed when the system boots, see x86: What to Do if the Multiboot Module From Previous GRUB Implementation Is Loaded at Boot Time.
For more information about what's new in booting and changes to GRUB in this Solaris release, see Chapter 9, Booting a System (Overview), in System Administration Guide: Basic Administration.