[Noisebridge-discuss] [Rack] minotaur is down

Henner Zeller h.zeller at acm.org
Sun Jul 7 18:59:38 UTC 2013


On 6 July 2013 02:26, Jonathan Lassoff <jof at thejof.com> wrote:

> First, gateman needs to come up.
>
> I'm stuck interacting with the parallel port as a parallel port :(
>
> open("/dev/usb/lp0", O_RDWR)            = 3
> ioctl(3, PPCLAIM, 0x7fff85442ba8)       = -1 ENOTTY (Inappropriate
> ioctl for device)
>

It is one of these USB -> parallel port adaptors, so might not be 100%
compatible with a 'standard'  parallel port.
However, writing bytes to it should still work (if I understand correctly,
there is only one bit used to operate the buzzer ?)

-h


> On Fri, Jul 5, 2013 at 10:56 PM, Ben Kochie <ben at nerp.net> wrote:
> > Ok, Henner and me verified.
> > /dev/ttyS1 is upstairs keypad
> > /dev/ttyS2 is downstairs keypad
> >
> > baron is ready for startup.
> >
> > -ben
> >
> >
> > On Fri, 5 Jul 2013, Ben Kochie wrote:
> >
> >>> you will notice a four-way plug that has yellow and black wires, and
> goes
> >>> to the blue serial cables.  Those are 12v power for the payphone and
> >>> upstairs keypad.  On minotaur there was a jack on the motherboard that
> >>> happened to put out 12v like that, so that's what that is.  If you
> find a
> >>> way to power those from the new situation that would be great.
> >>
> >>
> >> Minotaur is back online, with a fresh Debian install.  I've copied the
> >> basics back into place, but there will be some work needed to get
> everything
> >> back in place.
> >>
> >> Henner is helping out soldering up a random 12v PSU to the two DB9-RJ45
> >> adapters to provide power to the keypads.
> >>
> >> We should have things rolling soon.  If you're looking for data from the
> >> old install, check out /var/backups/old-minotaur/
> >>
> >> Please be careful with disk space use.  The SSD that is providing the
> >> mission critical rootfs is only 2GB.
> >>
> >> There is a 750G drive setup with LVM to be used for other stuff.
> >> _______________________________________________
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> >> Rack at lists.noisebridge.net
> >> https://www.noisebridge.net/mailman/listinfo/rack
> >>
> > _______________________________________________
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