Linux is a high-profile computer operating system. The Raspberry Pi can run one of a number of Linux distributions, the most pupular being Debian and Arch Linux.
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votes
2answers
41 views
recover files from broken sd card (no boot)
Is there any chance to recover some files that are on a SD card which doesn't boot anymore? Seems the last power-cut affected some files on the card and the Raspberry Pi is not able to boot anymore.
1
vote
2answers
62 views
Creating boot script for webcam
I seem to be having trouble getting this to work, I'm trying to run mjpg-streamer when the Raspberry boots, but it doesn't using the script below. I have mjpg-streamer installed in: ...
-1
votes
1answer
22 views
crosstool-nc install failure [closed]
I am trying to install crosstool-nc on ubuntu and it fails. I successfully ran configure, but when I run make it appears that m4 fails when bison is trying to create zconf.tab.c.
$ make
SED ...
0
votes
0answers
23 views
samba server (smbd) causes “mount: / is busy”
I am developing an application on Raspberry Pi. I am using samba to share my RAMDISK over network. Here below you can see my fstab:
proc /proc proc defaults 0 0
...
1
vote
0answers
50 views
Where can I find example C source for using non-graphics related parts of the Mailbox interface?
I would like to extract information about the Raspberry Pi like Serial Number, Board Model, Board Revision, CPU Clock Rate, Temperature in a C program. It looks like I have a couple of options:
Use ...
3
votes
0answers
102 views
Audio/Video out of sync with PCM2704 USB key. How should I proceed?
I recently bought a PCM2704 USB sound card, which is purported to work out-of-the-box with raspbmc. I've enabled the experimental audio drivers, but now I get pretty bad A/V sync issues. Of course, ...
8
votes
2answers
776 views
Pi powerd OBD-II Computer
I recently built an OBDuino32k with my Arduino Uno. Unfortunately, I built the wrong interface, so I can't use it with my car. I built an interface for ISO instead of ELM.
I bought a Raspberry Pi ...
0
votes
1answer
44 views
How to make cross compile development enviroment that can use shared libraries from Pi?
I was able to install toolchain and compile programs that use basic c libs. But that is not really useful when compiling big programs.
I've learned that, when cross compiling, compiler will look for ...
-1
votes
1answer
78 views
How to set up the Raspberry Pi [closed]
I have just gotten my Raspberry Pi. I am a beginner in Linux.
Can someone please explain how I should go about starting up my computer?
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votes
1answer
154 views
How to unzip Minecraft PI edition through terminal
I recently got the Raspberry Pi Model B, and have been tinkering with it for hours on end. I recently discovered that one of my favorite games, Minecraft is now available. I downloaded the program and ...
1
vote
0answers
41 views
How can I read and write data to a Character Device File in Linux with PHP?
I'm trying to read and write to modules on the I2C bus on a Raspberry Pi using PHP. I'm using fopen() and fskeek().
Below is the code I've been trying to use to read data coming in from the physical ...
0
votes
1answer
184 views
Performance difference Raspbian versus Gentoo
Is there a measurable difference in CPU performance between Gentoo and Raspbian?
With Gentoo you use different compiler flags and with the USE flags compile only what you need. In Raspbian all ...
0
votes
1answer
649 views
Getting “No rule to make target 'modules'. Stop.” error when running makefile. What does it mean?
I'm trying to get a webcam working with my Raspberry Pi
How do I install webcam firmware on the Raspberry Pi?
I found a possible way of doing this with gspca.
So I downloaded the file and unzipped ...
0
votes
3answers
102 views
What application (and options) should I use to get terminal access to my Pi over a USB/serial cable on Linux?
I've got a Raspberry Pi with a Raspbian SD card, connected to my Debian laptop via a USB TTY cable. The cable is supplying power to the board; my user is in the dialout group, and can see ...
2
votes
0answers
248 views
Raspberry Pi Air Display
recently I've discovered air display for various configurations (mac+pc, pc+pc, etc.). I've been thinking about doing the same with raspberry pi connected to my tv. Although air display isn't ...
2
votes
1answer
92 views
Schedule periodical processes
I have a project that I´ll be using RaspBerry Pi to make a controller for process control.
To do that I need to schedule processes periodically. Does anyone know how I could do that? So I have to ...
2
votes
2answers
77 views
Install Linux Kernel
How can I compile a basic linux kernel on Rpi, or is it possible in a any way?
I want a very basic linux with nothing on it but just Linux.
Let me know if there are any alternatives or suggestions.
1
vote
3answers
145 views
Special OS for a special device
Why does the RPi need a 'special' kind of Linux ? Why can't it run any distribution ?
4
votes
1answer
460 views
Building a minimal Linux for Raspberry Pi
Now I got my Raspberry Pi. I am an experienced application software developer, but I've never done hardware stuff or low-level programming before. I want to build a minimal Linux, including drivers ...
2
votes
3answers
4k views
SSH “connection refused” on Raspberry pi - cannot find why
I have the following problem SSH "connection refused". It would work fine, but while I am working on the SSH, I would get "connection refused" and would have to re-connect (which does not occur for ...
2
votes
1answer
308 views
How can you update “Incredible PBX” for the Raspberry Pi without using the non-free, $20/year updater?
I have been a fan of Asterisk, and in particular the project The Incredible PBX.
However, they charge $20 per year to update (for the raspberry pi). This updater installs security updates, among ...
0
votes
0answers
152 views
svn: E200030: sqlite: database disk image is malformed @ checkout
The .svn folder doesn't exists yet. I tried deleting it after it was created, but I get the same issue again.
@:/var/www/htdocs$ svn checkout https://host/svn/trunk/ .
svn: E200030: sqlite: database ...
3
votes
3answers
436 views
IRC/XMPP web-based chat client or BNC?
Is there any webchat client with a daemon for Rasbian/Raspberry Pi? Something like webpidginz or an alternative for it. I found it hard to use with Raspberry Pi/Rasbian (because it doesn't provide an ...
0
votes
0answers
52 views
crosstool-ng build fails in ubuntu
When i am trying to build ct-ng build iam getting the below error. can anyone please help me to resolve this issue. Thanks in advance.
[DEBUG] Testing '! ( HOST = HOST )'
***[ERROR] Missing: ...
1
vote
1answer
148 views
XBMC and unclean shutdown
So, I have my Pi, and based on some posts here, am installing Raspbmc.
I have a nice powerstrip that senses current through the "main" outlet (my TV), and will switch off some of the outlet if there ...
0
votes
2answers
114 views
What are the kinds of (useful) things could I do on a raspberry PI?
I'm probably going to buy one, but I'm not sure what I will do with it. I have a lot of linux experience but not a lot of hardware experience.
So what things can I do on it that would be useful and ...
0
votes
2answers
515 views
Failed MySql install (raspbian)
I finally got a Raspberry Pi for Christmas and decided to set it up as a home web server. I have nginx with php setup and working. I came to install mysql and ran sudo apt-get install mysql-server. ...
5
votes
2answers
337 views
Raspberry Pi One Touch Audiobook *Updated*
I am looking for anyone to help me out. I am trying to build this for my blind grandmother for Christmas. http://blogs.fsfe.org/clemens/2012/10/30/the-one-button-audiobook-player/
**Update, since I ...
2
votes
0answers
437 views
raspberry pi booting failed on custom kernel
hello I have compiled my custom kernel and pack initramfs into it. I have created two partition fat32 and ext3. fat32 contains bootloaders and kernel and ext3 contains rootfs. I have made a raw disk ...
2
votes
1answer
799 views
How to use Pi for standalone automation?
I want to use the Pi for standalone home automation.
As such, the Pi must boot up automatically and run a Java program.
I am running Debian Wheezy hardfloat.
I have little Linux experience, what ...
7
votes
2answers
2k views
building kernel image (.img) including ramdisk
I have build my Linux kernel (3.0.1) for my raspberry pi with those following steps.
1. Downloading kernel source
2. tar xvf source.tar.bz2
3. downloading arm cross compilation tool.
4. tar xvf ...
4
votes
1answer
225 views
Periodic task in kernel module
I currently developing a gpio based kernel module for a custom protocol.
as per requirements of protocol, i have to send data, clock and enable signal to output device throgh gpio.
this data is ...
3
votes
0answers
209 views
Any CANopen adapters supported on the PI?
Does anyone know if there are any CANopen protocol converters supported on the Pi, or if ones that work under Linux could be ported to it?
7
votes
1answer
236 views
SSH not landing default user directory
I have recently installed Raspbian onto a Raspberry Pi. As part of the installation process I changed the user name and group from the default (pi) to my own (let's call it user) using usermod and ...
6
votes
2answers
1k views
How to use Java to read/write data to/from the header pins?
I just got Java running on my Raspberry Pi which took a lot more screwing around than i had hoped. I want to be able to read/write data to/from the header pins from Java. How can I do this? Do I need ...
5
votes
3answers
304 views
Playing around with servers
I want to get some hands on knowledge with linux servers (sine the last internship I applied for, required some experience with linux servers, but I had none), and I'm wondering if the RPi would give ...
4
votes
2answers
255 views
Is there a Linux image wich was compiled with -mfloat-abi=softfp
I'm trying to find an OS that was compiled with -mfloat-abi=softfp to be able to use my precompiled arm binaries on my Raspberry. Although I understand the reason why Raspbian and Arch are compiled ...
19
votes
5answers
8k views
Is it possible to run real time software?
I know it runs Linux and there are real time patches available for Linux. Would those patches work?
Has anybody tried another real-time-os on the Raspberry Pi?
The idea is to use the board for ...
8
votes
1answer
2k views
Can anyone recommend a simple image viewer?
My boss asked me to find a cheap mediaplayer for some stuff at work.
That inspired me to build something on my own, using a Raspberry Pi.
My plan is to use udev-rules, to detect usb/sdcard and then ...
11
votes
2answers
5k views
How do I disable suspend mode?
Whenever I leave my Raspberry Pi on overnight, it always seems to have entered some kind of suspended state. The red power light is still on but the light on the USB WiFi device is off and I can't ...
5
votes
1answer
2k views
ALSA volume ignored when beginning playback
I ran into an interesting problem today.
I noticed I don't have a "Master" channel in amixer. I only have PCM. And changing the volume on PCM is really finicky. It seems only 85%+ is actually ...
15
votes
3answers
12k views
How do I determine the current MHz?
I've been trying to get an accurate reading of my Raspberry Pi's MHz, since I overclocked it in /boot/config.txt
My /boot/config.txt is as following:
pi@raspbmc:~$ cat /boot/config.txt
arm_freq=900
...
11
votes
2answers
1k views
What is Raspbian?
Being new to Linux, maybe this is a stupid question! I don't quite understand how this distro thing all works, is Raspbian just compiled packages with source code taken from the individual ...
20
votes
2answers
4k views
Emulation on a Linux PC
How can I connect an SD card containing a Raspberry Pi OS to my Linux PC, and boot the OS in an emulator?
Why won't VMWare work?
What are the limitations of this method?
Related: Emulation on a ...
