Questions tagged [linux]

Linux is a high-profile computer operating system. The Raspberry Pi can run one of a number of Linux distributions, the most pupular being Raspbian (Debian-based) and Arch Linux.

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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 set up and working. I came to install MySQL and ran sudo apt-get install mysql-server. ...
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0answers
296 views

Raspberry PI infrared remote

I have been trying for the past week to make a simple system to switch my air conditioning ON/OFF based on raspberry pi. I have my IR VS1838B infrared receiver, and a small circuit build out of a ...
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1answer
464 views

Raspberry Pi Compute Module 3 and IO Board does not detect USB device if it's plugged in before booting

I have a Raspberry Pi Compute Module 3 mounted on an IO board, connected to a (powered AFAIK) USB hub full of devices, and running Ubuntu MATE 16.04.2, with the X server disabled. I've noticed that ...
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0answers
1k views

ERROR:sandbox_linux.cc(344)] InitializeSandbox() called with multiple threads in process gpu-process [closed]

I am using a Raspberry Pi: pi@raspberrypi:~ $ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.3 (stretch) Release: 9.3 Codename: ...
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1answer
1k views

How to see debug logs from Raspberry Pi 3 during boot process?

I am currently trying to debug a "black screen" on a Raspberry Pi. The Pi is plugged to an in-house PCB using connector of the Pi and the LCD screen is connected on this in-house board. The Linux ...
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1answer
2k views

Trying to run plex media server on Raspberry Pi

Hi I'm trying to run Plex on my Raspberry Pi 1st gen rev B, but it does not seem to be starting. I have followed this guide and looked at others that look the same and can't see what the issue is. It ...
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2answers
1k views

Read-only SD card and file system in RAM

There are number of articles about mounting SD card read-only, but I only found info, that if needed to write something, first of all you have to remount file system as readwrite. My question is there ...
2
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1answer
286 views

Ideas on why my app won't run on Yocto RPi system?

I've built a custom 32-bit non-GUI Raspberry Pi image using Yocto (Morty), built the corresponding SDK, and used the SDK's toolchain to build an app. When I run the app on the RPi, from a command ...
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0answers
955 views

Raspberry Pi 3, chromium_browser, and Mobaxterm…Not happy!

I have a Raspberry Pi 3 setup running raspbien (usual os, jesie). I use mobaxterm to connect to the box and start up a gui. I can run several apps fine..such as gimp for instance. When I try and ...
2
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1answer
1k views

Cross compiling Qt on windows for raspberry pi, missing xcb dependencies

I am trying to start with Qt for Raspberry Pi on a Windows Dev System. To begin with to setup the environment, I followed the below as per the official wiki page. From starting at various stages, I ...
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0answers
905 views

RaspberryPi access point on wlan1 stopped working

I have a Raspberry Pi 3 with an external WiFi antenna wlan1 set up as an independent IoT access point without Internet connection following this tutorial, using hostap and isc-dhcp server. I omitted ...
2
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1answer
1k views

How to change default apache folder to Flash drive on Raspbian?

I have apache 2.4 on my raspberry pi and need to change DocumentRoot to flash drive folder. But I have 403 Forbidden. In apache logs: AH01630: client denied by server configuration: /media/pi/www/...
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0answers
4k views

Raspberry/Linux doesn't recognize USB device

I'm using Raspberry Pi model B+ V1.2 to which I want to connect TP-LINK TL-WN823N Wireless N USB Adapter. I have connected device and this is what happened: pi@raspberrypi:~ $ lsusb -t /: Bus 01....
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0answers
370 views

Docker image to cross compile node modules for RPI?

I am wondering if anyone knows a way(preferably docker container) to use a Linux Machine, to cross compile a nodejs application, with native modules, such as serialport and run it on a RPI? Thanks
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1answer
3k views

How to save files from RPi 2 to USB stick ( vfat )?

My application need to save some files from /home/pi/dir to /media/usb which is my USB stick 32 GB vfat formatted. When I try: mv /home/pi/dir/* /media/usb/dir/ it gives me this error : cp: cannot ...
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0answers
285 views

BLE alternatives to Beacon transmitter - Pi2

I'm working with a Raspberry Pi 2 Model B. Currently my Raspy sends a Beacon signal. No problem to receive it with an Android App. The problem is that iOS can find beacon devices only if i already ...
2
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0answers
131 views

Problems with Kali on raspberry pi, plus some mac issues

Just yesterday I was able to boot Kali on my raspberry pi without much of a problem. The following day, however I tried booting it as usual. It showed the boot screen and everything with the four ...
2
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0answers
229 views

xpra server error (error accepting new connection)

I'm having trouble connecting to my xpra server. I've installed Xpra version v0.14.10, on my raspberry pi 2 which running on Raspbian Jessie Distro. I connect to my RPi through putty with X11 ...
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0answers
670 views

Specify interrupt in devicetree overlay

I have created a devicetree overlay to add an MRF24J40 transceiver to Raspberry Pi. The interface of the transceiver is SPI and an interrupt request. After some trouble the device finally appears in ...
2
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0answers
426 views

Using kernel debug symbols on Raspberry pi

I see that I can install packages that contain the kernel debug symbols in Ubuntu as shown here. Is it possible to do the same for Raspberry pi? I'd really like to have kernel symbols for the raspbian ...
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0answers
66 views

what is the use of this patch 'ASOC: dapm: add code to configure dai link parameters from “rpi-3.12.y” '?

Recently i am working on the raspberry pi kernel rpi-3.12.y When i am using the latest image and modules of it, i am getting an error while rebooting or halting. The error message is like unable ...
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0answers
1k views

Python having trouble accessing usb microphone via Gstreamer to perform speech recognition with Pocketsphinx on a Raspberry Pi [closed]

So python is acting like acting like it can't hear ANYTHING from my microphone at all. Here's the problem. I have a Python ( 2.7 ) script that is suppose to be using Gstreamer to access my microphone ...
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0answers
292 views

samba server (smbd) causes “mount: / is busy” [closed]

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 ...
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0answers
2k views

raspberry pi booting failed on custom kernel [closed]

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
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1answer
44 views

Investigation - pi's password is lost in every reboot issue

I'm investigating this issue: pi's password is lost in every reboot. Issue summary: Change pi's password by passwd command -> reboot -> the changed password always will be changed to another which we ...
2
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3answers
192 views

Special OS for a special device

Why does the RPi need a 'special' kind of Linux ? Why can't it run any distribution ?
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1answer
101 views

chrome won't install because of architecture?

I am trying to install Chrome on a 64 bit, see all info below. I also tried this on Ubuntu and get the same thing. Chrome won't install because of the architecture. I am some what knowledgeable with ...
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1answer
770 views

Mono on Raspberry Pi

I've seen a lot of talk about running Mono/.NET code on the Raspberry Pi. Has there been any succceses in actually running any Mono code on the Raspberri Pi? On their site, they list several Linux ...
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3answers
180 views

Are there any `armv6j_hardfp` binary repositories for Gentoo?

Since the Raspberry Pi hardware is non-ambiguous, the point of compiling optimized to the individual machine is pretty moot, while I'd still like to use Gentoo on my Raspberry Pi due to uts excellent ...
1
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1answer
718 views

Why won't my systemd execute?

I get this error message when I try to run systemd: Failed to create /user.slice/user-1000.slice/session-c2.scope/init.scope control group: Permission denied Failed to allocate manager object: ...
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3answers
1k views

how to enable super user to modify config.txt file to enable codex

I am trying to edit the config.txt file so that I can add the licence codec key codes. I have noobs and Raspbian installed on the Pi. When I use the text editor that comes with Raspbian to try and ...
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2answers
3k views

How can I install Lantern on Raspbian?

Purpose I bought a Raspberry Pi 2 B , and I want to build a Lantern network at home. So I want to use the Raspberry Pi as a router. What I know I know the Lantern for Linux version is based on ...
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2answers
965 views

Faster Way To Transfer Video FIle

I have a Raspberry Pi with Raspbian installed in it, and I would like to receive video files on My Ubuntu machine from Raspberry through a switch via Ethernet(CAT5). Note: I can connect both devices ...
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1answer
1k views

Raspberry Pi Executables and Redirection

I have an executable that I am running on the Raspberry Pi. When the program is run, output is displayed on the terminal, but when I use the redirect operator >, I get nothing in the text file. ./...
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2answers
14k views

How can I install numpy and pandapower?

How can I install numpy and pandapower on the RASPBIAN JESSIE LITE Minimal image based on Debian Jessie? the one without the GUI. And how can I install Pip and miniconda on it as well?
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1answer
149 views

How to run pry on Debian Linux for ARM

I installed rvm and Ruby 1.9.3p194 on a Raspberry Pi using Debian Linux. When I installed pry using gem install pry, everything installed perfectly but typing pry in a terminal didn't work: pi@...
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3answers
1k views

Does the “Raspberry Pi Touch Display” work with regular kernel?

Firstly, please excuse if this question seems bit noobish, I just started thinking about getting Raspberry PI, I don't have any experience neither with it nor with ARM platform (well, my phone, but ...
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2answers
20k views

How do I unzip a file? [closed]

I am new to the Raspberry Pi and I have a Pi 3. I cannot figure out how to unzip a file. I tried using Archiver, but I get an error message.
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1answer
9k views

Cannot save changes to config file in /etc/kbd/config

I am attempting to disable text and screen blanking in my Raspberry Pi but I cannot save the changes as it says "Can't open file to write". How can I fix this?
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2answers
354 views

Energy profiling tools for linux

I was wondering if you can give me any tools for energy profiling in linux. I'm going to use it to compare between two algorithms that are going to be used on a Raspberry Pi, and if possible, I need ...
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1answer
4k views

using os.path.expanduser(“~”) I am getting /root instead of /home/pi

While logged in as "standard" pi user, I am expecting the path to the user directory to be /home/pi – which is the case when I open File Manager, for example. However, when I run this script I get /...
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1answer
759 views

all commands in raspbian terminal stop working

I run Raspbian. Everything worked fine until now, when it seems I can't use any command on my Raspberry Pi. I tried to reboot. And now it doesn't connect to wifi. @raspberrypi: sudo su -bash: ...
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2answers
5k views

Captive Portal using DNSMasq

I'm trying to setup a captive portal (catch-all HTTP server) on a Pi. I have configured the Edimax USB adapter with DHCPD and hostapd and that works perfectly. Client devices can connect and access ...
1
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1answer
3k views

Cloning SD card causes “interface eth0 does not exist”

I have cloned my raspberry pi SD card after customising the OS. However, when I try to boot it on a different pi, everything appears fine, but eth0 doesn't show up in ifconfig. When I try 'ifup eth0', ...
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2answers
1k views

Install tightvnc in arch linux raspberry pi

How do I install the tightvnc in the Arch Linux os on Raspberry Pi? Are the procedures and commands different?
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1answer
25 views

Fresh new slackware arm install, unable to log into my raspberry pie 3

I have been trying to install slackware arm (slackware arm current 4.19.81-7+) on my Raspberry pi 3. After i have installed it successfully (following this guide), i was unable to login due to the ...
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2answers
32 views

Start smartcard service at startup in a raspberry pi

I have a raspberry pi connected to smart card reader (OMNIKEY 3121). I installed all driver and libraries needed. In order to use the card reader it is necessary to activate its service: sudo ...
1
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1answer
50 views

Can't return any values from ttyUSB0

I'm using a SICK S300 scanner connected via Diagnostic cable to my Raspberry Pi, and it shows the connection as /dev/ttyUSB0 however I can't retrieve any data from it whatsoever. Here is a simple ...
1
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1answer
170 views

Arecord: “main:828: device or resource busy” when run via systemd service, but works fine from CLI

I have a python script which, when a GPIO button is pressed, launches an arecord process. This records audio from a USB microphone (plughw:CARD=GS3,DEV=0) and pipes it to another program for ...
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1answer
129 views

How to control the Bit Rate (mbps) of a Raspberry Pi Access Point

I have two "Raspberry Pi 3 B+" boards which are required to be connected. One Raspberry Pi is configured as Access Point (AP) and the other one is just a Client. When both are connected, I write the ...