Messages in this thread | | | Date | Wed, 01 Aug 2007 08:41:38 -0400 | From | "H. Peter Anvin" <> | Subject | Re: 2.6.23-rc1: no setup signature found... |
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Borislav Petkov wrote: > > if i do delete here, it loads the second stage of grub and continues to load the > kernel. Is there another way to land at the jmp instruction instead of poking > blindly, maybe disassemble something parts of the initial code. \me reading > grub-docs... >
Oh lovely. The purpose of this was to intercept the running of the kernel setup code. If grub doesn't load it at a 64K boundary, it is hard to guess what it would do.
I'll do some experiments with qemu here and see if I can figure out a way to get it to trap at the right point.
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