Supermicro MBD-A1SAi-2550F

Max Herrgard herrgard at
Sun Jun 22 01:48:36 PDT 2014

I don't think FreeBSD uses boot0 on their memstick image. At least I didn't
get the F-key menu last time...

You could try making a dragonfly image without boot0. Either by commenting
out the boot0cfg -B -o nopacket line in nrelease/Makefile or by mounting it
as a vn device and running fdisk -IB on it. I'm not 100% sure the second
way will work.


On Sun, Jun 22, 2014 at 10:10 AM, karu.pruun <karu.pruun at> wrote:

> Correct me if Im wrong but I understand you don't even see kernel
> booting? If true, then seems not related to the new usb stack since
> this kicks in much later in the booting process. The hang is
> immediately after the boot prompt; I've seen this since 4 yrs ago on
> my laptop (macbookpro) and believe it could be due to (U)EFI that I
> see your machine also has. Also, might be more related to boot (ie
> boot1 + boot2) rather than boot0 since I have a situation where DFly
> and FBSD both live in the MBR partitions and DFly's boot0 is able to
> boot FBSD, but not itself! Exactly the same phenomenon: I get the boot
> prompt (where actually the partitions are F1 = DFly, F3 = FBSD)
> and then hitting F3 boots FBSD, but F1 hangs. I can still boot DFly
> with an ISO image (get the prompt, set currdev etc and boot), but it's
> cumbersome.
> I don't know what the fix is; would like to hear if anyone has a solution.
> In the future (when I'll have some more time), I'd be interested in
> working towards integrating UEFI booting into DFly.
> Btw, when you'll get your machine to boot, can you tell if it works
> with the new usb?
> Peeter
> --
> > On Sat, Jun 21, 2014 at 2:23 PM, Roman Neuhauser <neuhauser at>
> wrote:
> >> having just bought a Supermicro MBD-A1SAi-2550F motherboard[1]
> >> i proceeded and failed to boot 3.8.1 and 3.8.0 from several
> >> different USB sticks.  FreeBSD-10.0-RELEASE-amd64-memstick.img
> >> boots normally.
> >>
> >> the system hangs on exit from the F1/F5 menu (boot0 i believe?).
> >>
> >> PXE should work but i still prefer having a means of booting
> >> from a USB stick.  what can i do to help fix this?
> >>
> >>
> >>
> >> --
> >> roman
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