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Date:      Wed, 01 Nov 2000 19:29:49 -0500
From:      Neil Ludban <nludban@pokey.salientsystems.com>
To:        freebsd-small@freebsd.org
Subject:   problems booting with serial console
Message-ID:  <3A00B57D.8A3E90F9@salientsystems.com>

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hello,

I'm trying to get FreeBSD (4.1.1R) to boot on an embedded PC.  It's a 386ex
with 8M RAM, 2 serial ports, and no video.  It first boots to embedded DOS
on a flash RAM drive (A:), and then runs a small program that loads the first
sector off the DiskOnChip drive (C:) and executes it:

Loading MBR
Relocating
00000000
00007c00

F1   FreeBSD

Default: F1 


At this point, it beeps after every key press, but never progresses.  I gave
up and installed the simple "mbr" (using a DiskOnChip evaluation board on a
different PC) and tried again.  This time the line spins a few times to show
it's loading, and then the cursor starts running about the screen.  From the
hexdump'd output (appended at end of message), it looks like it's just sending
escape sequences.

The output pauses periodically, just like normal device probing messages.
Eventually it hangs, which isn't a big surprise since the disk doesn't have
much more than a kernel and some /dev entries.

This is especially baffling since the same setup starts booting normally on
the test PC.  Can anyone tell me what's going on here, or have suggestions to
try?

	--Neil


00000940  4d 42 52 0d 0a 52 65 6c  6f 63 61 74 69 6e 67 0d  |MBR..Relocating.|
00000950  0a 30 30 30 30 30 30 30  30 0d 0a 30 30 30 30 37  |.00000000..00007|
00000960  63 30 30 0d 0a 2d 08 5c  08 7c 08 2f 08 2d 08 5c  |c00..-.\.|./.-.\|
00000970  08 7c 08 2f 08 2d 08 5c  08 7c 08 2f 08 2d 08 5c  |.|./.-.\.|./.-.\|
*
000009c0  08 7c 08 2f 08 2d 08 1b  5b 32 35 3b 30 31 48 1b  |.|./.-..[25;01H.|
000009d0  5b 32 35 3b 30 32 48 1b  5b 32 35 3b 30 33 48 1b  |[25;02H.[25;03H.|
000009e0  5b 32 35 3b 30 34 48 1b  5b 32 35 3b 30 35 48 1b  |[25;04H.[25;05H.|
000009f0  5b 32 35 3b 30 36 48 1b  5b 32 35 3b 30 37 48 1b  |[25;06H.[25;07H.|
00000a00  5b 32 35 3b 30 38 48 1b  5b 32 35 3b 30 39 48 1b  |[25;08H.[25;09H.|
00000a10  5b 32 35 3b 31 30 48 1b  5b 32 35 3b 31 31 48 1b  |[25;10H.[25;11H.|
00000a20  5b 32 35 3b 31 32 48 1b  5b 32 35 3b 31 33 48 1b  |[25;12H.[25;13H.|
00000a30  5b 32 35 3b 31 34 48 1b  5b 32 35 3b 31 35 48 1b  |[25;14H.[25;15H.|
00000a40  5b 32 35 3b 31 36 48 1b  5b 32 35 3b 31 37 48 1b  |[25;16H.[25;17H.|
00000a50  5b 32 35 3b 31 38 48 1b  5b 32 35 3b 31 39 48 1b  |[25;18H.[25;19H.|
00000a60  5b 32 35 3b 32 30 48 1b  5b 32 35 3b 32 31 48 1b  |[25;20H.[25;21H.|
00000a70  5b 32 35 3b 32 32 48 1b  5b 32 35 3b 32 33 48 1b  |[25;22H.[25;23H.|
00000a80  5b 32 35 3b 32 34 48 1b  5b 32 35 3b 32 35 48 1b  |[25;24H.[25;25H.|
00000a90  5b 32 35 3b 32 36 48 1b  5b 32 35 3b 32 37 48 1b  |[25;26H.[25;27H.|
00000aa0  5b 32 35 3b 32 38 48 1b  5b 32 35 3b 32 39 48 1b  |[25;28H.[25;29H.|
00000ab0  5b 32 35 3b 33 30 48 1b  5b 32 35 3b 33 31 48 1b  |[25;30H.[25;31H.|
00000ac0  5b 32 35 3b 33 32 48 1b  5b 32 35 3b 33 33 48 1b  |[25;32H.[25;33H.|
00000ad0  5b 32 35 3b 30 31 48 1b  5b 32 35 3b 30 32 48 1b  |[25;01H.[25;02H.|
00000ae0  5b 32 35 3b 30 33 48 1b  5b 32 35 3b 30 34 48 1b  |[25;03H.[25;04H.|

...and 5 more pages of similar patterns.  If anyone would like to see them,
please let me know.


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