[Rack] minotaur is down

Jonathan Lassoff jof at thejof.com
Sat Jul 6 00:06:07 UTC 2013


So, so, so, so awesome!

Thanks for all your help and gear this afternoon, Ben. I had a fun time.


I think making the keypads run on Ethernet Arduinos is the best way to
do this. We have two Etherten boards (Jake has one I was poking at,
and it sounds like Ben has another).
We're stretching the maximum lengths for RS232 (though it seems to
just work just fine at low bauds), but we're at a good distance for
10/100 Ethernet.
Ethernet/IP also has the advantage of being really easy to address
from software.

It's also going to be increasingly easier to scrounge Ethernet gear
than Serial stuff.

On Fri, Jul 5, 2013 at 4:48 PM, Ben Kochie <ben at nerp.net> wrote:
> Yea, I just got the new box up with base OS install.  I'm starting the file
> copy from the old machine's drive now.
>
> The old box is still up on the wall and will stay there until you or gravity
> win.
>
> As soo as I finish copy files and buttoning up the box, I'll put it up in
> the rack by the wall o tubes.
>
> Please be careful, the serail ports are barely secured.  I plan to fix this
> later this weekend.
>
>
> -ben
>
> On Fri, 5 Jul 2013, Jake wrote:
>
>> that's great that minotaur will be back up soon!
>>
>> what will happen to the old motherboard?  i want it.
>>
>> it is not necessary to get a PCI card for serial ports.  I have plenty of
>> USB to RS232 adaptors for the various routers, and if the system has two
>> native ports that's enough for the two keypads so we should be good.
>>
>> There is a USB to RS232 adaptor present which goes to a cat5 cable which
>> goes to the RFID reader by the door.  Please plug it into the new computer
>> so we can continue to try to get the RFID reader to work properly. Someone
>> is actually working on it this week!
>>
>> if we get RFID to work, we can put a tag on every tool at noisebridge!
>>
>> On Fri, 5 Jul 2013, Ben Kochie wrote:
>>
>>> Ok, I will try and get the base system up and running as it was.
>>>
>>> The new system will have a minimized root filesystem on SSD.  Home and
>>> data storage will be provided by a new 750G drive.  This is stuff I picked
>>> up for another project that never got done.
>>>
>>> One thing we could do is order one of these:
>>> http://www.newegg.com/Product/Product.aspx?Item=N82E16815158166
>>>
>>> -ben
>>>
>>> On Fri, 5 Jul 2013, Jake wrote:
>>>
>>>> well, the payphone is one physical serial port, and the upstairs keypad
>>>> is another.  These are important because they are actual RS232 lines running
>>>> long distances (like in the 1970's) and they are pretty mission-critical
>>>> (literally in the mission) and the extra USB-serial layer would suck for
>>>> that.  so i'm glad we don't need to do that.
>>>>
>>>> it used to be that there were serial ports out to each net appliance,
>>>> for remote management.  I think that can be done over USB serial adaptor
>>>> just fine, and if we need more i know where they are hiding.
>>>>
>>>> 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.
>>>>
>>>> i hope that the minotaur downtime doesn't get confused with the new door
>>>> access policy.
>>>>
>>>> -jake
>>>>
>>>> On Fri, 5 Jul 2013, Ben Kochie wrote:
>>>>
>>>>> It has 3 physical serial ports, and USB.  Is that enough?
>>>>>
>>>>> -ben
>>>>>
>>>>> On Fri, 5 Jul 2013, Jake wrote:
>>>>>
>>>>>> ahhh fuck.  i don't suppose it has physical serial ports?
>>>>>>
>>>>>> On Fri, 5 Jul 2013, Ben Kochie wrote:
>>>>>>
>>>>>>> Yes, something is fucked up with the mainboard.  We tried two new
>>>>>>> hard drives, they would not boot.
>>>>>>>
>>>>>>> We have a new box that we're bootstrapping now.
>>>>>>>
>>>>>>> -ben
>>>>>>>
>>>>>>> On Fri, 5 Jul 2013, Jake wrote:
>>>>>>>
>>>>>>>> this computer runs the payphone keypad, upstairs keypad, and opens
>>>>>>>> the door for people.  it also does DNS at noisebridge.  is it being
>>>>>>>> repaired?
>>>>>>>>
>>>>>>>> jake at pony:~$ ping minotaur.noise
>>>>>>>> PING minotaur.noise (172.30.0.4) 56(84) bytes of data.
>>>>>>>>>
>>>>>>>>> From pony (172.30.0.30) icmp_seq=1 Destination Host Unreachable
>>>>>>>>> From pony (172.30.0.30) icmp_seq=2 Destination Host Unreachable
>>>>>>>>> From pony (172.30.0.30) icmp_seq=3 Destination Host Unreachable
>>>>>>>>
>>>>>>>> ^C
>>>>>>>> --- minotaur.noise ping statistics ---
>>>>>>>> 5 packets transmitted, 0 received, +3 errors, 100% packet loss, time
>>>>>>>> 4168ms pipe 3
>>>>>>>> _______________________________________________
>>>>>>>> Rack mailing list
>>>>>>>> Rack at lists.noisebridge.net
>>>>>>>> https://www.noisebridge.net/mailman/listinfo/rack
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
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