error 1 lba 752976 while booting from USB key to install

[Mel]

On Thursday 10 July 2008 14:46:58 Matthias Apitz wrote:
> Hello,
>
> I've some server (a 2 years old HP NAT 1000s storage system) and
> I want to drop the installed W2k system and re-install it with
> FreeBSD 7.0R and later use it as a central backup-system with
> Bacula.
>
> The problem is that this server has no CD or DVD device, but can
> (theoretically) boot from external USB CD/DVD (which I don't have
> either);
>
> so I cam up with the idea to boot from that USB key I have used to
> install 7.0-REL on that eeePC, i.e. the USB key works fine in any
> laptop; on the HP NAT 1000s storage system it says:
>
> FreBSD/i386
> Default: 0:ad(0,a)/boot/kernel/kernel
> boot: error 1 lba 752976
> No /boot/kernel/kernel

Let me ask a stupid question: why is it trying to access an ATA/ATAPI disk, 
not an USB (scsi da(4)) disk. Can you boot via:
0:da(0,a)/boot/kernel/kernel

Or variants of those, see boot(8) for the syntax explanation.

-- 
Mel