Thanks Arnoud. I could get this working - but I was trying to get the Mathematica  kernel running from command line. I downloaded the Remote Development Kit ( from here: http://www.wolfram.com/raspberry-pi/) - which according to the description should allow remote execution of Mathematica code on a kernel running in the Pi (if my understanding is correct). When I try to run the provided Rasberry Pi example - I get an error message to the effect that it is not able to connect to a remote kernel on the Pi. It got me thinking that maybe I need to have an instance of the Mathematica kernel running on the Pi before I attempted to run any Mathematica code remotely. 
Please let me know if you have any pointers.

Arvind

Hi Arnoud,

I'm having a similar problem as Arvind's when trying to run test code from the RDK.

The kernel is setup by the RDK automatically:

And in-explicably - it started working :-) Thanks for all the help.

Arvind

I'm not able to get the remote connection to work either.  I am running Mathematica 9.0.1.0 on a Windows 7 laptop, and have Mathematica also working on my Raspberry Pi (on Raspbian).  I can ssh to the RPi from my laptop and run the "wolfram" command without problems.  When I am directly using the RPi, I can invoke the Mathematica front end and get commands like Plot[ ] to work just as they do on my laptop.

I have installed the Remote Development Control Panel on my laptop's Mathematica, and configured the connection to my RPi over the LAN.

When on my laptop I run:
I get this output:
But when I try to create a "New Pi Notebook", I get this error:
Should I change "AutoStartOnLaunch" to True?

Hi David,

Have you tried ps wuax | grep WolframKernel on your RPi right after you run your remote Pi Notebook? What does it say? Idon't think you should change the "AutoStartOnLaunch" to True.

I'm recreating most of this almost a month later, and I can't reconcile the results I'm getting with the advice posted here.

To summarize:

1.) I have what I think is a functional installation on RPi. From the RPi command line, I can run ~$ wolfram and a Front Ended Mathematica from the RPi GUI ( ~$ startx).
2.) from a command line on the RPi, ~$ ifconfig reports an IP Address for the RPi of 10.0.1.18
3.) From a terminal window on a Mac on the network with the RPi
, I can log on and run wolfram.

Confusion came when I downloaded Remote Development Kit and installed it on my Mac (running Mma 9.0.1, but other releases don't behave differently). Starting with the RPi booted to login, if I bring down the Remote Development Control Panel palette and click 'Configure Pi Connection,' I get a dialog that requests 'Network machine of Pi:' I'm guessing that this is the IP address of the RPi - the same one I used in the ssh above. The 'Login on Pi:" I suppose is my user name on the Pi, which has been left the default. When I click 'OK,' nothing obvious happens. I'll get to the things that evidently really happen later, but next I clicked on the 'Pi Test & Example Notebook' on the RDK Control Panel. The nb opens, and I run the $MachineName line. This opens a dialog box named 'Password For RemoteDevelopmentKitdial...' I don't have a clue what's expected here, but I've tried using the RPi's login password. The Mma line evidently executes, but there's no output.

About here, I looked at quitting the Mac kernel and starting over. What's hard to figure is that the Evaluation->Kernel->Quit Kernel yields a list with 'Local' and by now ten or so (grayed out) 'Raspberry Pi's (by now I had attempted the RDK setup process a couple of times.) The same list appears in the 'Notebook's Kernel,' here all black and all the RPi kernels checked. The list appearing under 'Default Kernel' is all black with 'Local' checked. 

So now I've unplugged the power to the RPi, closed Mma, reopened Mma and checked the kernel list. All there. Executing [font='courier new', courier, monospace]Options[$FrontEnd, EvaluatorNames] on a fresh copy of Mma on the laptop lists them all with forms like

I ran
, the RDK disappeared from the Palette menu, but all the Kernels remain.

So I'm left without a clue how I got here, how to get rid of the spare kernels and how to connect remotely to Mathematica running on the Raspberry Pi.

TIA for any advice on any of this.

Fred Klingener

I gave up on the RDK about three weeks ago, took another run at it with the arrival of my RPi camera, and I have some progress to report.

My last post in this thread outlined the failure to establish a notebook on Mma running on a Macbook but with the kernel running on the networked RPi. The symptom was a simple refusal to accept a login, (and that led to what I thought were particularly nasty loops that were hard to escape from.)

The crux problem, I've decided is the behavior of the Remote Development Control Panel (the dropdown palette). If I fail to replace the "Login on Pi" and expect the apparent default "pi" to be selected, subsequent attempts to use the kernel in a notebook fail.


The plausible reason can be seen by looking at Kernel>Evaluation>Kernel Configuration Options..., selecting the Raspberry Pi kernel I just created and choose to Edit it. At this stage,  that kernel configuration looks like


(The Remote host is the IP address I got from running ifconfig from the terminal on the Raspberry Pi) The entry under "Remote user:" looks suspiciously like a Module variable name, and if used at login would seemingly guarantee failure.

If I edit that entry explicitly to "pi", I can successfully log in.

 

Hth,

Fred Klingener

I guess the method described in the last message (using the computer name to specify location of the Remote Host on the network) only works on even days or for some other inscrutable reason. The connection failed this morning, so I'm back to the numerical IP address and will stay there.

Hth,
Fred Klingener

The remote kernal setup is very particular. If you don't get it just right the local kernal reports the following error:  SSH could not find the machine on which to launch the kernel 'Raspberry Pi'.

Under Basic Option:
Machine Name: raspberrypi
Remote Login: pi
Kernel Program: /usr/bin/wolfram

raspberrypi is the name of the machine and I added an entry in my windows host file with the ip address. For the Remote Login: I included the password as pi@raspberry and this caused the error message so it should be just pi. The RDK will ask you to confirm the connection and ask for a password.

Hello Arnoud, I installed Mathematica yesterday and wanted to connect it to my Raspberry Pi. I also have the same problem as described in the above posts:

From my Mac I can ssh to my RasPi and launch there Wolfram, and make it add 1+1. But I can't figure out how to get a connection to the RasPi from Mathematica on my Mac using the RDK.

In the setup mask of the RDK (Configure Pi Connection) I entered

Network machine of Pi: IP address of the WLAN connection of my RasPi (as said, this one works for connecting via ssh)

Login of Pi: pi

I my point of view there is not much that the user can do there wrong, it should work out of the box.

When I try to connect to my RasP and evaluate the Pi Test & Example notebook I am asked to enter my password for my pi login, I have to wait then quite a while, then I get the following two errors:

The child process 594 reports: sh: Private: command not found

The kernel Raspberry Pi failed to connect to the front end. (Error = MLECONNECT). You should try running the kernel connection outside the front end.

When I enter Options[$FrontEnd, EvaluatorNames] on my local desktop I get

In[2]:= Options[$FrontEnd, EvaluatorNames]

Out[2]= {EvaluatorNames -> {"Local" -> {"AutoStartOnLaunch" -> True}, "Raspberry Pi" -> {"RemoteMachine" -> True, "TranslateReturns" -> True, "AutoStartOnLaunch" -> False, "Executable" -> "/usr/bin/wolfram", "HostName" -> "192.168.178.22", "RemoteLogin" -> "pi"}}}

I googled the problem but couldn't find anything that would solve my connection problem. I would be very happy if you could help me with this issue.

Kind Regards Björn

Taking yet another run at this a year or so later.

Raspberry Pi 2 Fresh NOOBS 1.4.0 (2015-02-18) SD card Macbook Pro (Retina late 2012) OSX 10.10.2 Mathematica 10.0.2.0 Network ethernet cable

Purpose - Run Mma on the RPi kernel from a front end running on the Mac

This was a new RPi, and the network had been reshuffled, so the first problem was getting a functional ssh from Mac Terminal to RPi. Resolution (after a day and a half of googling) was to find the .ssh/knownhosts from the Mac file system. I tried several edits suggested in the forums but could make none work. Removal of the knownhosts file was the only thing that fixed it. That file was a half-encrypted text file that included recognizable host ip addresses from past configurations, but why the simple persistence of old data causes fatal termination with such alarming security warnings, I have no idea.

Now, I evidently have a resysthesized known_hosts file, a functioning ssh from the Mac Terminal, and a functioning wolfram program on the PRi.

Next I tried hooking the Mac to the RPi using the Mac's Mma RDK. First, I verified that I only had the single (Local) kernel installed in Evaluation>Kernel Configuration Options, then I clicked on the Configure Pi Connection on the Remote Development Control Panel, filling in the RPi's ip address (from running ifconfig on the RPi after I first set it up). I used the palette to open a Pi Test & Example Notebook. Executing $MachineName got me nothing. Options[$FrontEnd,EvaluatorNames] gets me nothing. As a matter of fact, 2+2 gets me nothing. Evaluation>Notebook's Kernel shows Raspberry Pi checked.

I clicked on the Raspberry Pi in the Evaluation>Kernel Configuration Options panel and found an entry in the Basic Options > Remote Host: e$738, and that looked suspiciously like a Module variable that somehow didn't get resolved, so I edited it to the RPi's ip address, opened a fresh Pi test notebook. $MachineName gets me a Message "The child process 2095 reports:" and "The kernel Raspberry Pi failed to connect to the front end. (Error = MLECONNECT). You should try running the kernel connection outside the front end."

I need a hint.

This worked for me:

(Using Mac OS X Yosemite)

SSHing into the Raspberry Pi threw an RSA key error.

So I went to the Mac Terminal and Typed: open /Users/yourusernamehere/.ssh. I navigated to the "knownhosts" file and I found the key associated with my Pi's IP address and deleted it.

I tried to login into the Pi again and it asked my to verify the key.

After I logged into the Pi I went to Wolfram(local machine not pi) and changed my notebook type to from (Local) to (Raspberry Pi). I then typed $MachineName and the Output was "raspberrypi".

For me at least I am guessing that the RSA key was the issue.

I just thought I would post this in case anyone else had the same Problem.

I have a related question and wonder whether any of you could help me.

Using a Linux machine, I logged with a remote desktop service (rdp protocol) onto a Raspberry Pi 2. Everytime I try to start Mathematica with the User Interface the connection crashes. Has anybody experience on how to get that to work, or is that not supported?

The terminal option using Wolfram works well.