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Sparc bootblock [Was: SFS breaks PPC build ]

From: Bart Grantham
Subject: Sparc bootblock [Was: SFS breaks PPC build ]
Date: Mon, 17 Oct 2005 03:30:13 -0400
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511

Marco Gerards wrote:

> As GRUB 2 is ported to the ultra sparc64 it might be wise for us (GRUB
> and solaris developers) to talk about multiboot.  Of course other
> parties might be interested as well (the Hurd uses multiboot, for
> example).
> Anyway, what is important for you is that we are thinking about a
> portable multiboot and that there is also a sparc port in the making.

Speaking of which, after refreshing my forth skills, I've started work on the sparc bootloader. I have it reading data from disk into mem, but I'm not sure if I want to share it quite yet. Before sharing it I'd like to:

- have it verify that the file at the configured sector(s) is an ELF file
- follow through and make sure it properly boots an ELF image (right now it only gets it into memory)
- clean up the code a bunch

I'll hand it over once I get those done. After that, the features I'd like to work on are:

- support of a sector-sized lookup table indicating the layout of the grub image on disk, allowing for more flexible configuration - support of a sector-sized lookup table indicating additional forth bytecode, providing for extensibility just in case. - verify that the code works on PPC, and if not, try to make it work so that there's a unified bootblock [not sure if this is reasonable as I'm not as familiar with how PPC OF boots... how similiar is it to Sparc?]
- same for sparc32


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