Ultra low-cost computer the size of a credit card. Also check the Raspberry Pi SE: http://raspberrypi.stackexchange.com/

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2
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2answers
33 views

What's the easiest way to create a pre-built “image” of a Debian/Rasbian host?

I'm playing around with my raspberry pi project and have made a number of customizations to my device OS (simple stuff... configuration files... installed packages... etc). I would like to make a ...
0
votes
0answers
304 views

How to set up smtp and send emails?

I'm new to raspberry pi. I installed the raspian OS on it. I want to send emails from it using my gmail account. I want to send from the command line interface and from php scripts. I followed this ...
0
votes
2answers
461 views

Can't connect to WLAN with netctl

I can't connect to a WiFi network. I tried various methods such as wpa_supplicant and wicd. At the moment I'm trying netctl. When I enter the command: systemctl --type=service I see the following ...
0
votes
2answers
282 views

Mainline kernel supported Raspberry Pi competitor? (no GPU needed)

The Raspberry Pi uses its own kernel fork. For a headless server (no GPU needed), is there a device with similar specs, performance-wise, that can use the vanilla mainline kernel from kernel.org?
2
votes
1answer
74 views

Chrony 506 Cannot talk to daemon

I'm having trouble configuring chrony to sync the time between my raspberry pi and a desktop computer in an isolated network. My raspberry pi's chrony.config file looks like this: server master ...
1
vote
1answer
376 views

“No such file or directory” when executing a cross-compiled program on a Raspberry Pi

I recently bought a Raspberry Pi. I already have configured it, and I install a cross compiler for arm on my desktop (amd64). I compiled a simple "hello world" program and then I copy it from my ...
1
vote
1answer
112 views

`cat /dev/ttyACM` loses data when piped through netcat

I'm reading data from /dev/ttyACM0 using cat /dev/ttyACM0 on a Raspberry Pi. The data comes from a device, which sends lines in the form 15.00 1316013 15 where the first number is a value, the ...
1
vote
1answer
371 views

Fail to install node.js on Debian

I'm running Raspbmc which is running a minimal Linux distribution based on Debian. And I would like to install node.js via package manager but I'm fail to install on my system. Which it come with this ...
1
vote
1answer
86 views

ACL defaults: files vs directories

Default ACLs on a directory are inherited by files and subdirectories created under that directory. It seems a common requirement that by default subdirectories should be executable (i.e. cd-able) ...
0
votes
2answers
331 views

Creating directory on an external hard drive via command line (SSH) on Linux

I have tried many approaches to create a directory on my external hard drive. Here is the details when I do fdisk -l What I get: pi@raspberrypi:~$ sudo fdisk -l Disk /dev/mmcblk0: 3965 MB, ...
1
vote
1answer
322 views

Capture raw image from V4L (webcam) device

I'm using a Raspberry pi to monitor a self-service fridge. When the door opens, a shell script is being executed to capture pictures until the door closes again. The problem, however, is the speed of ...
1
vote
1answer
60 views

What are the ramifications of recursively chown'ing the directories on an external drive that currently has 501:dialout or root:root permissions?

I have a Raspberry Pi that's running a Raspbmc distribution and I've noticed that a lot of the directories are either owned by the user 501 and the group dialout or both the user and group root. It's ...
2
votes
1answer
82 views

No default output device -9996: playing sound through Django

I'm facing a problem with my Raspberry Pi while playing a sound through a web page. The page is built in with Django and is quite simple: you push on a button and a sound is played (a Python script is ...
1
vote
2answers
240 views

How to write to SD card with dd command?

Having some trouble with writing to my SD card, burning NOOBS (New Out Of Box Software) software to my SD card for Raspberry Pi. Attempted to use the following command as root: # dd bs=1M ...
2
votes
1answer
220 views

Use the raspberry pi as a source of entropy for /dev/random

I'm trying to see if I can use my raspberry pi's hardware RNG as a source of entropy for /dev/random. Mostly to see if I can get it to work and find yet another use for this nifty little device. Of ...
3
votes
1answer
1k views

Using DNSMasq for Local Hostname Resolution

I'm working on setting up a home intranet for me and my roommates. My idea is that we'll be able to store things like past utility bills in a place that's more accessible than a drawer in the kitchen ...
1
vote
2answers
1k views

I always need to ifdown/ifup wlan0 after reboot

I'm trying to create an ad-hoc wifi made of 5 computers (one windows pc and 4 raspberry pi loaded with a raspbian) the raspberry pi will talk through mqtt, but tha'ts not the point. The problem I have ...
4
votes
2answers
530 views

How can I tell if my wifi dongle has access-point capabilities?

I have a Realtek 8191SU USB wifi dongle for use on my Raspberry Pi. I'm trying to set up a wifi access point using this tutorial. However, I'm running into a few errors, and I suspect it might be ...
3
votes
0answers
208 views

How can I connect to my RPi NFS server using version 4?

I've set my Raspberry Pi up as an NFS server, but I cannot connect to it with NFS version 4. However, version 3 works. From my Kubuntu 13.04 client: $ sudo mount -t nfs -o proto=tcp,port=2049,vers=4 ...
0
votes
2answers
794 views

What is wrong with my cron job?

I'm new to linux, and was told I could use a feature called cron job to run a python script I made execute every 10 minutes. Problem is the the python script isn't running. There doesn't seem to be a ...
1
vote
0answers
450 views

Bittorrent Sync Autostart as a Service

I'm running a raspberry pi with the latest raspbian (debian) on it. I've installed btsync. Now I want to run Bittorrent Sync, when the system boots, not only when somebody logs in. Do I have to run ...
1
vote
2answers
442 views

$PATH not modified inside LXDE on Raspbian

I have a bin directory in home/pi. This is added to my $PATH when I login (by .profile), but when I go into LXDE and use LXTerminal my bin directory is no longer added to $PATH.
0
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0answers
279 views

Permission Denied (PublicKey,keyboard-interactive) linux raspberry pi

I know there are a ton of questions on this. I have read almost all of them. I have also googled this problem to no avail I attempted to git clone git@git.assembla.com:myhubname.git and I get ...
1
vote
2answers
191 views

omxplayer on different screen

I'd like to have two instnces of omxplayer and switch between them. I'm using raspian on raspberry pi. I've tried opening one instance in one screen, and then press alt+ctrl+f2 to switch to the ...
3
votes
0answers
460 views

How do I reset a USB device using a script?

I have a USB GSM modem that does not always work property (Huawei E367u-2) Sometimes it gets reset (USB device disconnect/reconnect in logs) and when it comes back up, it has different ttyUSB numbers. ...
0
votes
2answers
60 views

getting a gui program to start on boot

I have a C program I wrote for debian on the raspberry pi that asks the user to enter a number, 1-4 which it then stores in a configuration file. This only happens if the configuration file is ...
1
vote
1answer
590 views

Pimp rsyslogd to have less i/o (cron, pam,…) and less logging

On my raspberry I really don't need crons and pam logging and I want to have less i/o to make the SD card life a little longer.. I have already removed cron with the second line cron.none, I'm ...
0
votes
1answer
374 views

LIRC does not start after reboot

If I compile LIRC with this patched lirc followed by install using make install it works fine and launches without any error. However, after a reboot the same command fails with following error : ...
2
votes
1answer
66 views

Controlling process priorities

I have recently started trying to control stepper motors with the Raspberry Pi. I have succeeded in getting motion. The problem I am having though is that it seems the stepper motor is missing steps ...
7
votes
2answers
775 views

Optimizing a `while` loop

I have created a mini script to reboot my Raspberry Pi upon the push of a button. The script simply uses wiringPi (gpio command) to set pin 0 (pin 17 in Raspberry Pi standard numbering order) to ...
2
votes
2answers
3k views

Run a sudo (or startup) python script from cron on a Raspberry Pi?

I'm helping out with an art project (http://stargateeggbeater.com/ for those interested) built on Raspberry Pi. The RPi controls an addressable LED strip through the GPIO, using the spidev device per ...
3
votes
2answers
123 views

Mount harddrive under different name?

When I plug a external HDD into my Rasberry Pi (running Raspbian) it automatically mounts as /media/2ad496774-3eb8-47bb-2bf5e-788f8eb89e54 where folder underneath it are then accessible by going ...
4
votes
1answer
141 views

How Can I Automate the Change between a Python Script and a Nohup Python Script?

I have a Raspberry Pi connected to a digital temperature probe, which measures my fermenting beer. A python script reads the temperature every second and prints it to the console, and stores it in a ...
3
votes
1answer
406 views

Streaming music to a raspberry pi

I have a laptop and a raspberry pi connected to a soundsystem via the jack output. I'd like to have the output of the soundcard of my laptop redirected to the raspberry through my local network. I ...
2
votes
1answer
60 views

Can connect from RPi to laptop, but not other way around

I'm developing a server-client application (command-line based) in Java. I want to run it on my Raspberry Pi (RPi), but it turns out I can't login to my server-part from my laptop. The problem is that ...
8
votes
1answer
248 views

RasPi - USB microphone locks up

On my RasPi board, Debian Linux, the USB microphone occasionally gets locked up such that nothing can use it. The microphone has a LED which is usually flashing, when it's locked, it turns off. The ...
0
votes
3answers
2k views

Trying to open a browser on startup on my Raspberry Pi

I have Raspbian running on my Raspberry Pi, and I want to have a browser appear when it starts up. I am able to open a Midori window to the right page on start up, but my problem is that I receive a ...
1
vote
1answer
1k views

Stream Video using Netcat and VLC

I'm trying to use netcat on Linux server to stream video to my windows client using VLC I started running netcat on Linux: cat /media/HD1/myMovie.mkv | nc -l 8668 In VLC Windows Client I tried ...
2
votes
0answers
134 views

npm issues with uglify-js

I'm trying to use node.js to run a project on my Raspberry Pi (following this guide: http://blog.donaldderek.com/2013/06/build-your-own-google-tv-using-raspberrypi-nodejs-and-socket-io/ ) and I've run ...
1
vote
0answers
197 views

Raspberry PI wifi network setup: switch adhoc mode if a wired/wifi network is unavailable

I'm using raspbian (debian) and I want the system would be able to always be reachable through the network, without the user needs to manually interact with the system. I'm looking for a solution that ...
0
votes
0answers
126 views

Why my raspberry pi can't connect to the wireless network?

I run the command wifi-menu in my archARM system ,and it already found the Wi-Fi hotspot, but the the connection failed. Here's a photo:      note: I use the EDUP EP-N8508GS USB ...
1
vote
1answer
203 views

No bluez device after pactl list sources short

I am using pulseaudio on a Raspberry Debian (Wheezy) but my bt-headset(Iqua BHS-611) does not show up in sources or sinks. What I did: I followed the Raspbian Wheezy Installation Guide at: ...
2
votes
1answer
68 views

How-to diff distributions?

I am using a Raspberry Pi. There seem to be all kinds of linux distributions, all in .img Format that I use Win32DiskImager for to burn to SD-card. How do I find out, which files were changed(some ...
2
votes
0answers
76 views

Debian based Raspberry – samba invisible unless I restart

I have a Raspberry Pi running Raspbian along with other computers on the same network. I installed, configured and started samba to share files from my home folder of the Raspberry Pi to my other ...
1
vote
1answer
330 views

Mounting external HFS+ device with truecrypt - read only file-system

I´m trying to mount my external HFS+ HDDs on my raspberry pi with raspbian "wheezy". The disks are encrypted with truecrypt so I mount them with the command truecrypt /dev/sda /media/usbdisk/disk1. ...
3
votes
1answer
673 views

How do I mount a Windows folder with cifs on Raspian

I'd like to access the music library from my desktop with my Raspberry Pi, and I'd like to do this via Samba/cifs. I did the following: Set the folder Q:\musik as a shared folder on my Windows ...
3
votes
1answer
468 views

How to distinguish input from different keyboards?

I want to write an application in Python that you can use with your default keyboard and a specially designed one for the application. I will design it simply by using a small numerical keyboard with ...
0
votes
1answer
198 views

USB Drive Software Disk Mirroring - Is this the right approach?

I have a 1TB NTFS USB Data Drive (no boot, etc...) that I would like to keep a mirror of as a backup in case of hardware failure. It is always connected to my raspberry pi running the raspbian ...
1
vote
1answer
93 views

Access X-window and sound on laptop on another Unix

I read up a lot about forwarding x-server onto remote machines, but I feel like I'm too dumb to get it to work. Let me first explain my goal: I have a Rasberry Pi running archarm hooked up to a TV. ...
1
vote
0answers
205 views

avconv/ffmpeg output through /dev/ttyAMA0

I tried to pipe streaming video from video4linux2 webcam connected to a Raspberry Pi through /dev/ttyAMA0 to a computer using an Arduino as a intermediary. First of all, is it possible? Because I was ...