On Thu, 6 Nov 2014, TJ wrote:
> On Wed, Nov 05, 2014 at 11:33:21PM -0500, Ted Unangst wrote:
> > On Wed, Nov 05, 2014 at 23:04, John Merriam wrote:
> > > Hello. I am trying to create a 'headless' setup using a softraid
> > > crypto root with serial console on OpenBSD 5.6-release amd64.
> > >
> > > I have everything installed and working just fine, except I'm having a
> > > problem getting the 'headless' part going.
> > >
> > > I followed the instructions in section 7.6 of the FAQ at
> > > http://www.openbsd.org/faq/faq7.html#SerCon I edited /etc/ttys to
> > > enable the getty for tty00. I added 'set tty com0' to /etc/boot.conf
> > >
> > > It doesn't seem to work though. The Passphrase: prompt is still output
> > > to pc0, not com0.
> > >
> > > If I enter a bogus password at the Passphrase: prompt on pc0 to get to
> > > a boot> prompt, I can enter 'set tty com0' after which I get a
> > > Passphrase: prompt on com0 and everything works fine.
> > >
> > > It seems like for some reason /etc/boot.conf is not being seen/used? I
> > > would guess it might have something to do with the softraid crypto root
> > > setup but I don't know.
> >
> > Right. boot.conf is encrypted, so of course it can't be read until
> > after the passphrase has been read.
> >
> > > Is there a bit that needs flipping somewhere to get the serial console
> > > to work with crypto root? Any info or pointers on this would be
> > > greatly appreciated. Thanks.
> >
> > If you look in sys/arch/amd64/stand/libsa/bioscons.c you'll see two
> > functions, pc_probe and com_probe, which set cn->cn_pri. You'll need
> > to swap MIDPRI and LOWPRI and rebuild, then rerun installboot.
> >
> > That either makes sense or is a bunch of gibberish. I haven't actually
> > worked this out, so I can't give you a precise recipe.
>
> Alternatively, you could make a small unencrypted "a" partition on the
> disk with just an /etc/boot.conf file that contains the following:
>
> set tty com0
> boot sr0a:/bsd
>
> Then do the crypto softraid install to another partition and it should
> boot like you'd expect.
>
> See: http://permalink.gmane.org/gmane.os.openbsd.misc/206003
For now this is what I would recommend...
--
"Action without study is fatal. Study without action is futile."
-- Mary Ritter Beard
