Hi Kevin, After fixing the problem of usbrom int13 AH=08, Now the usbrom can return correct of CHS parameters. "error 21 "have been resolved, but now the problem is "error 2" which means it can not find the "/boot/grub/menu.lst" i am still debugging. Any suggestion will be welcome.
On Mon, Aug 17, 2009 at 12:26 AM, Kevin O'Connor <ke...@koconnor.net> wrote: > On Mon, Aug 17, 2009 at 12:06:04AM +0800, Jason Wang wrote: > > hi all, > > here is my usbrom latest progress. > > 1) usbrom can hook int13 > > 2) usbrom can support int13 lba mode which including int13,ah=02,42,41 > > 3) usbrom can be used to boot grub from usb disk. Grub can step into > > stage1.5 > > Great! > > > but there still some problems which should be considered > > 1) how to make usbrom only respond to requests which used for usb not > hard > > disk. ( in my eyes, diff these requests by drive number?) > > 2) how do assign the drive number for usb disk? just followed by 80? > anyone > > can give me an details about that? > > This is covered in the bios boot specification (bbs) document. > > -Kevin > > > -- > > Jason Wang > > Peking University > -- Jason Wang Peking University
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