On Thu, Dec 28, 2006 at 08:32:28PM +0000, Thiemo Seufer wrote: >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.
Yup, exactly. I borrowed the layout from your own genisovh program... :-) >> 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. Yeah... :-/ -- Steve McIntyre, Cambridge, UK. [EMAIL PROTECTED] "Every time you use Tcl, God kills a kitten." -- Malcolm Ray -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
