[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Sparc bootblock

From: Andrei Warkentin
Subject: Re: Sparc bootblock
Date: Mon, 17 Oct 2005 08:38:07 -0500

IANA mac guru, but the OF in Old Worlds (OF 1.0.5) has support for reading from block devices, parsing *some* filesystems (this but is pretty crippled - for example, no fragmentation can occur on a FAT floppy, because it just loads data linearly). It can boot from a partition 0 boot block (example: first stage QUIK boot block for Linux), or from an XCOFF file (example: ofwboot.xcf from NetBSD/ OpenBSD). The NetBSD ofwboot page goes into a lot of gory details of what the problems are with Old World OF =) - apparently the biggest one are rather inconvenient load-base and real-base. It certainly understands iso9660 and FAT (somewhat).

On Oct 17, 2005, at 3:20 AM, Marco Gerards wrote:

Bart Grantham <address@hidden> writes:

- 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

On the Open Firmware implementations on the PPC machines I worked with
you can load an ELF file directly.  Open Firmware has support for
reading from block devices, parsing partition maps and it has support
for some filesystems.

So at least of the New World Mac, the Pegasos, etc. this is not
required.  Perhaps we need such bootblock for the old world mac...


Grub-devel mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]