A small update: I now have tried switching to IDE mode instead of AHCI in the 
BIOS and also have tried two different disk devices (250 GB SATA HD, 4 GB SATA 
DOM) on different ports but still the same results. No drives available.



On Thursday, September 18, 2014 7:33 PM, Nick Holland 
<n...@holland-consulting.net> wrote:
On 09/18/14 12:27, ML mail wrote:



> Hi,
>
> I'm trying to install OpenBSD 5.5 (amd64) to use as a firewall on a
> SATA flash drive of 8 GB. Unfortuantely the drive does not get
> detected by OpenBSD at the installation so I am unable to install
> OpenBSD.
>
> The relevant output of the dmesg would be the following:

If you know what the "relevant" output is, you could probably
fix the problem.
don't snip your dmesg.
...
But ... sounds like sucky hw.

I'd start by swapping out the SATA cables (I think I've had some issues
with that).  Try a real SATA disk.  If the real disk works, your flash 
drive or its adapter is bad (or ahci-uncooperative)

If it seems OpenBSD just doesn't work with that SATA port (with a real 
disk), try -current and see if that works better.  If not, post a full 
dmesg so we can figure out what we are dealing with.

To get running today, I'd see if you can degrade the port to non-AHCI 
mode -- it will be slower, but for a firewall?  Who cares.  Won't notice 
with most flash devices anyway.  Or use a USB flash drive instead of a SATA.

Nick.

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