Frank Sorenson wrote:
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Pascal Bellard wrote:
Hello,
Please find attached a patch to build i386/x86_64 kernel directly
bootable. It may be usefull for rescue floppies and installation
floppies.
Pascal,
In commit f8eeaaf4180334a8e5c3582fe62a5f8176a8c124, build.c has already
changed, and I don't believe it's very compatible with this change.
See
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f8eeaaf4180334a8e5c3582fe62a5f8176a8c124
Also, we'll need to see comments from H. Peter Anvin on this patch.
CC'ing him.
Geometry detection by looking for error returns is fundamentally broken.
Way too many non-traditional floppies (USB, IDE...) do not handle this
at all, they will return successfully, with the data being the data from
a sector from another track, and thus you end up with aliasing and a
corrupt boot. You can do it with fingerprinting, but that's complex and
error-prone.
In short, this made sense in 1991, but it hasn't made sense for a very
long time now. Resurrecting bootsect.S is *NOT* a good idea.
-hpa
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