Re: Bits from the debian-cd team; more CD/DVDs being built regularly

[Thiemo Seufer <ths@networkno.de>]

Steve McIntyre wrote:
[snip]
> mips
> ====
> jealously scribbles all over the first 512 bytes

I figure that's a DVH "Disk Volume Header" as used on SGI machines.

> mipsel
> ======
> bytes 000-008 : 0-padding
>       008-011 : magic header
>       012-015 : boot mode
>       016-019 : load address
>       020-023 : exec address
>       024-027 : boot file length
>       028-031 : boot file location

Looks like an Ultrix boot record for a DECstation.
That's a list of boot file extents and their locations. For an ISO
we can assume contiguous files, so it makes no difference in that case.

> (otherwise blank - may contain other boot files, but we don't use it)

There's only a single boot file. As a sidenote, there are other
mips/mipsel system architectures with different firmware and disk
layout conventions. This makes even building a CD which boots on
all mips systems tricky.


Thiemo