Hm... why not ask on -kernel or at least on -devel?

> I have a machine where to reproduce this bug, or a similar one. It's a 
> 286. Strangely enough, FreeDOS will boot from floppy and see C:, but 
> will refuse to boot from there (locks at InitDisk I think, I haven't 
> investigated into this).

IF it locks in InitDisk then you will see the InitDisk string on the
screen. If you do not, then you can try FDISK /MBR to replace the MBR
program code by a fresh copy, and/or try a newer SYS version to
install a newer bootsector on C:... If the MBR works right, then
you should see at least the "FreeDOS" string displayed by the boot
sector. If the boot sector works right, you should see, depending
on how far you get, "123" or "InitDisk" or the drive list or the
banner message, etc.!

> I seem to recall that Arkady has a tool to inspect the MBR and 
> find possible problems, right?

Arkady has BOOTFIX to analyze bootsectors. To analyze the MBR, use
FDISK /SMBR [drive number, e.g. 1] to save the MBR to a boot.mbr file.
You can also try MIRROR /PARTN ... or a debug script or other methods.

Eric


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