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

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4
votes
2answers
3k 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
2k 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 ...
3
votes
4answers
2k views

Execute a program at login

I'm running Arch-Linux ARM on a Raspberry Pi. My project goal is to have a barcode scanner attached to the Pi that forwards the scanned messages to a server in a LAN. To harden the system against ...
3
votes
3answers
6k views

Is it possible to repair Linux system files? Or is reinstall the only option?

I've got a question about something that always bothered me about Linux. On Windows, if any of the system files become damaged, you can just reinstall the system files, without having to re-format ...
0
votes
1answer
176 views

Alternative to ffplay for Raw Video Playback without X Windows

I am successfully capturing frames from a small USB IR camera on the small Raspberry Pi Linux board. I am using the 'libseek' code to do this: https://github.com/zougloub/libseek I can see alot of ...
0
votes
1answer
892 views

Cannot resolve hostname

I'm using a Debian on a RaspberryPi and the problem that I'm having is that I can't connect to the Internet. Every time I try I see a message that says "cannot resolve hostname". From the terminal, I ...
7
votes
1answer
3k views

Emulate RaspberryPi using QEMU

I would like to run a RaspberryPi system on my MacOSX using QEMU. I tried the following, using this tutorial: ./qemu-system-arm -M versatilepb -cpu arm1176 -m 256 -hda ArchLinuxARM-2014.06-rpi.img ...
7
votes
0answers
148 views

Trying to understand Auto reconnect WIFI method

I found this method of reconnecting the WIFI dongle from this post. But, I want to be clear on how it works, before I try and implement it. Go to /etc/ifplugd/action.d/ and rename the ifupdown ...
7
votes
1answer
6k views

How to get my bluetooth keyboard to be recognized before log in?

Because I need to use my keyboard to log in, I would like my keyboard pair automatically, pre-log in. I am using Debian squeeze, and am new to linux. All tutorials I have found seem to require the ...
6
votes
3answers
3k views

Mounting and modifying a loopback file without sudo/root, is it possible?

I'm trying to adapt a tutorial into an easy to use script http://qt-project.org/wiki/RaspberryPi_Beginners_guide. I'm trying to reduce the need for sudo/root as much as possible (preferably, only ...
5
votes
1answer
532 views

Reset running process when certain ammount of memory is consumed

I'm running a Hydra on Rasppberry PI. There were some problems with the program, but aside from these, there is a hidden memory leak in the program. The source is pretty big and really can't find the ...
2
votes
3answers
12k 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 ...
7
votes
1answer
2k views

Problems running python script from motion

I'm trying to set up the raspberry pi with my webcam as a motion detecting cctv that uploads the videos to google drive using Jeremy Blythe's script I have motion working correctly and the python ...
5
votes
1answer
2k views

How can I most simply transparently bridge traffic between wlan0 and eth0?

I am looking to do this on a Raspberry Pi, but I don't mind which operating system I have to install, so the easiest most out-of-the-box solution for Pidora (Fedora 20 Remix), Raspbian (Debian) or ...
5
votes
1answer
276 views

Arch Linux RPI: How accurate is the time on the RPi in Linux?

Currently I'm working on a application on my RPi which will be monitoring a set of GPIOs in real-time where the exact time when the GPIO turns HIGH is crucial for my application. And I need to know ...
5
votes
2answers
1k views

How can I launch applications from 2 ttys on launch?

I've currently got 2 ttys logging in automatically, but I need to launch a node script from one and a C program from another as soon as the device loads. The device is a Raspberry Pi running ...
3
votes
1answer
162 views

how to write a startup dependency on Internet availability?

Some of the services on my Raspberry Pi (~ Debian) depend on the availability of Internet (especially ntpd, for cryptic reasons). Specifically, the availability of a network device or a link being up ...
3
votes
2answers
2k 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.
1
vote
1answer
115 views

auto mount encrypted USB

I've actually just started dabbling in the raspeberry pi but no stranger to hacking around these controllers. Having said that, my knowledge is lacking in a few areas. A little about what I want to ...
1
vote
1answer
96 views

cross-platform audio streaming

I am helping a friend to set up his banana pi (raspberry pi clone) for use as a home server/NAS. At the moment we are trying to set it up to receive and play the audio of any other computer on the ...
0
votes
0answers
27 views

automount usb drive [duplicate]

I have a RaspberryPi with Raspbian (no GUI, only terminal). I want to use it as a music player (I will install a music daemon with web interface). Currently, when want to mount an external usb drive, ...