OpenBSD/amd64 won't boot on my acer aspire 1500. I found that someone
had the same problem[1] but I didn't find a solution. The laptop
configuration is : 
Athlon 64 3200+(2 GHz) ; 512 Mo DDR SDRAM 333 ; HD 60 Go ; screen 15"
SXGA + ; 802.11g, FireWire, 4USB, 1PC-Card, 1 DVD-RW.

As said, this seems to be the same problem that with the acer aspire
1524wlmi[1], here is what I've got when I boot :

Loading /4.2/AMD64/CDBOOT
probing: pc0 com0 mem[638k 509M a20=on] 
disk: fd0 hd0+* cd0
>> OpenBSD/amd64 CDBOOT 2.00
booting cd0a:/4.2/amd64/bsd.rd: 2225136+464495+2742160+0+331408 [80
entry point at 0x1001e0 [7205c766, 34000004, 24448612, b2c0a304]

So, according to the FAQ[2], I succesfully load MBR and PBR. The problem
occurs when /boot try to load /bsd. You'll notice that unlike what say
the FAQ, the boot process doesn't begin with "Loading..." or
"Loading;..". I suppose that is simply because this is not the i386
version (I didn't find the same documentation for amd64).

I tryed to boot with 3 CD burned from : 
      * CD42.iso from /pub/OpenBSD/4.2/amd64
      * install42.iso from /pub/OpenBSD/4.2/amd64
      * install42.iso from /pub/OpenBSD/snapshots/amd64

I also tried to boot with -d, -s and -c. I thought at least -c would
work, since what I understood was that it enables to change things to
load with the kernel. Maybe I just typed something wrong... I wrote
"boot -c", at the boot prompt, is it right?

Well, finaly, it all results in the same freeze.   

I tryed to contact the guy who had the (probably) same problem, but it
seems the email his no-longer valid, so I can't ask him if he found a

So if anyone have any clue of where I should lead my investigations to
find what the problem his, and hopefuly resolve it, that's would be very
kind to help me.

Best regards. 

[1] http://archives.neohapsis.com/archives/openbsd/2005-04/1988.html
[2] http://openbsd.org/faq/faq14.html#Boot386

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