On Sun, Aug 30, 2009 at 09:32:48AM -0700, H. Peter Anvin wrote:
On 08/30/2009 06:21 AM, Jonas Smedegaard wrote:Please read the following: http://advancemame.sourceforge.net/doc-makebootfat.html#7If you, after reading above, still feel that your questions are relevant (hint: I don't), then please elaborate on them.It's an interesting technique -- what he's doing is creating an MBR with a fake FAT superblock. What it does make me wonder is how many BIOSes end up doing something stupid (e.g. go to a floppy-only mode where INT 13h AH=08h doesn't work right) instead of something right.
Unfortunately I have not stats on the success rate of the technique - on the paper it sounds cool, and from the little experimentation I've done it acutally succeeded in a few cases to provide me a USB stick that was bootable on different BIOSes - which if using syslinux I could only make boot on one or the other.
I do not master the details of juggling with this (e.g. I only know that INT 13h is "something related to very early BIOS booting...").
So if I have now triggered your interest in this technique, Peter, then perhaps we will see interesting funky tricks in syslinux in the future?
;-) - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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