[multiboot] abstractmbi, modules

["Grégoire Sutre" <gregoire.sutre@gmail.com>]

Hi,

I made some tests with the people/phcoder/abstractmbi branch, but I'm a 
bit late reporting them...  Better late than never I guess :-)

I compiled the branch and installed GRUB from Linux on a USB stick, and 
then booted my NetBSD box from the stick, with multiboot.  It worked 
like a charm. :-)

Regarding the question (on irc) whether it also works with modules, it 
turns out that NetBSD/i386 kernel multiboot code lacks module support 
(in -current).  Therefore, to test modules, I tried booting Xen 3.3 
(with NetBSD as DOM0), with:

grub> multiboot (...)/xen.gz console=vga
grub> module (...)/netbsd-XEN3PAE_DOM0 console=pc
grub> boot

and I got an error "Panic on CPU0" from Xen (before booting DOM0).  This 
is with the abstractmbi branch, I didn't try with GRUB trunk.  There are 
some reports in the archives of grub-devel regarding problems with Xen 
3.3, so maybe this is a known issue with GRUB.  Note that with NetBSD's 
boot loader, which is also able to multiboot with modules, doing:

load /netbsd-XEN3PAE_DOM0 console=pc
multiboot /xen.gz console=vga

works fine.

Grégoire