What goes wrong?
Well, the IDE code gets the BIOS information from setup.S,
and the code there gets hd0 and hd1 data via the INT 41 and INT 46
addresses. But who says that hd0 and hd1 are IDE disks?
This machine (Pentium with Award BIOS) has both IDE and SCSI
disks, and boots from SCSI. And indeed, /dev/sda has geometry
1020/200/62.
Thus, the IDE driver mistook "first disk" for "first IDE disk".
Clearly, we would like to know which disks the BIOS called
"first" and "second" disk. I guess that the first disk is
the one on which the BIOS starts the boot loader.
But the kernel no longer has this information.
Moreover, maybe it was booted by loadlin or so.
Is there something meaningful the kernel can do?
Or should the user just tell the kernel on the command line:
"first disk is sda"?
Andries
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