Good day, all:

OK, I decided to try "superfloppy" mode for booting a USB stick on
this Dell laptop.  As you may recall, a partitioned USB stick did boot
on this box but it booted to C:\ while the files showed up as a:\.

Anyway, I blew away the MBR on the stick, used Linux to create a DOS
file system, and used "wsys" to write a FreeDOS boot sector to it.

Upon boot, the development kernel reports:

C: HD2, Pri[ 3], CHS = 1919-0-1, start = 15053 MB, size = 478MB
WARNING: partition Ext:1 FS 0B is not LBA
Please run FDISK [...]
D: HD2, Ext[ 1], CSH = 1980-1-1, start=15531 MB, size = 22520MB

Bad or missing command interpreter

(I entered a:\command.com, hoping the stick was at a:)

This ran command.com from the above C: partition, a MS-DOS installation!

Current drive is not valid>  a:

A:\>

Now, a DIR A: shows the partition identified above as HD2, C:.
A DIR B: shows the partition identified above as HD2, D:!

DIR C: gives an error.

I can't add a floppy drive to this laptop (except for a USB
floppy drive which just adds too much confustion), but clearly
the problems booting this laptop don't depend on whether the
USB stick has an MBR!

Ugh!!!

Mark Bailey



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