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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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33 views

Using cgroup module in iptables cause “no chain by that name” error message

Trying to use cgroup module in iptables rule cause "No chain/target/match by that name" message. I'm using: Linux raspberrypi 4.19.42-v7+ #1219 SMP Tue May 14 21:20:58 BST 2019 armv7l GNU/Linux ...
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0answers
11 views

Touchscreen xinput calibration not working

I want to calibrate a touchscreen named "eGalax Inc. USB TouchController" on my Raspberry Pi. I think X and Y axes of the touchscreen are inverted. I used xinput_calibrator for this purpose. When I ...
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1answer
155 views

Connecting a 1TB USB 2.0 WD Elements drive

I've just purchased a Raspberry Pi 3 and I've installed OpenELEC onto the Pi so I can run the Kodi. After this step - after this first step - I've succesfully set it all up and I've managed to get ...
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1answer
247 views

SSH on Raspberypi hang or frozen

I have direct connection with Raspberry pi via ethernet cable on linux machine. if i run ssh pi@10.42.0.22 i could establish secure connection. the problem i encountered is raspberry hang or frozen ...
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0answers
19 views

How do I change my Pi's bluetooth profile for it to show up as a bluetooth device not an audio device?

I want to give the pi a profile such that I can send and receive messages from it. However, in the list of bluetooth devices, it is showing up as an media device.
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4answers
55k views

How can I mount a Raspberry Pi Linux distro image?

Normal filesystem images can be easily mounted: mount system.img /mnt Examined, and modified. But when I try this with a Raspberry Pi system image (e.g. raspbian), I get: mount: unknown filesystem ...
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1answer
19 views

Boot's cmdline.txt and config.txt files changed after install new package in rasbian at pi zero (USB OTG Connection)

I am using raspberry zero with USB OTG to my linux LMDE based this instruction , so when i install something like lcd 5inch driver, the files which changed in the boot's SD card folder. and the files ...
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1answer
42 views

Store a data in a file using raspberry pi [closed]

Currently i am developing O2 Analyser project's code in raspberry pi 3 using C skill.Here, some details will print on display(20x4 lcd) & this all details i want to store in my raspberry pi's (...
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2answers
5k views

Xlib: extension “RANDR” missing on display “:1.0”

I'm trying to run openvibe-designer on my raspberry pie over vnc. Currently I am using Xvnc version TightVNC-1.3.9. All other applications that I've launched over vnc have worked. I only get this ...
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2answers
57 views

Can't see home folder in drive but can see from terminal

I'm trying to open my home folder on my raspbian lite sd card. I have the rasbian os plugged into a sd card reader to my ubuntu laptop. I can't see it in when I open the directory in GUI but I can ...
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0answers
85 views

Cannot Use SPI frequency above 500 kHz

I am running Arch Linux ARM on a Raspberry Pi 2 Model B, and I am attempting to communicate with a TFT display. I am writing a kernel module to interface with the display using SPI, and it works, but ...
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1answer
32 views

IP address randomly changed wlan0

I had an issue related to IP change. Is it typical for a Raspberry Pi to randomly change the IP? When I ran the command ifconfig, I noticed that under wlan0 inet, my IP address changed. I was made ...
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0answers
16 views

How do you set up Squid Proxy behind DHCP router?

I installed Squid on my RPi-3 for use behind a DHCP router. However, the pi will not route traffic back and forth between my computer because my router's DHCP settings. I don't want to give my router ...
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1answer
35 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
110 views

Cannot install PureAdmin on my Raspberry Pi

I try to build my own FTP server. I already installed pure-ftpd and created a user for the FTP connection. It works well, but now I would like to have virtual users, for which I need install PureAdmin ...
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1answer
106 views

Issue with owncloud and apache

I installed apache and No-IP DUC on my Raspberry Pi. Then, I could reach my simple html web page over the internet or on local network(using static IP of raspberry PI). Then I installed owncloud and ...
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1answer
18 views

How can I restore the default toolbar or add apps from the command line?

So I was messing around with the toolbar and ended up deleting the whole panel. When I rebooted my Pi, the panel came back, but it was empty, so I opened the toolbar editor, and was able to add an ...
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1answer
155 views

Exclude kernel modules from plain Buildroot 2016.05 image

Buildroot is a great tool for creating a custom embedded linux system. If one builds a plain system without any changes from the default configuration using the current 2016.05 version one ends up ...
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0answers
9 views

Install openCV in raspbian using another Linux distro [duplicate]

Good morning I was trying to compile openCV using raspberry 3 and It took me a long time also I had a lot of problems like "Structure need cleaning" (on an installed NOOBS) I just wonder if I can ...
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1answer
157 views

When I plug a USB camera in I get strange characters displaying on the screen

I have a raspberry pi B+ running the latest Jessie image (Linux raspberrypi 4.9.22+ ). I have a monitor, usb keyboard and usb mouse plugged into it. I also have a wired ethernet plugged in. No other ...
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1answer
212 views

Display a pygame window on builroot custom linux

I'm using Buildroot 2018.02 to create a custom Linux to run my raspberry pi 3. I'm trying to display a pygame window on the external hdmi screen from command line. So far, I've been able to boot the ...
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1answer
203 views

How to set a default inet addr to ethernet card like wlan have?

First of all, i am sorry i don't know much about networking and i am beginner in linux networking. Please help me with my problem. I have a Rpi3 and i am configured it as ethernet router from eth0 ...
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1answer
125 views

Run a python script when start up and SSH not log in

I am new to programming and doing a simple academic project with Raspberry Pi, I have a script which will monitor the changes of database and output the change with 2 different color LED. I want it ...
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1answer
154 views

Recovery of SRM save game file from Retropie corrupt SD card

I've been googling at this all night and have found multiple conflicting methods of recovering/formatting/saving corrupt SD cards but i'm a complete n00b with both Raspberry Pi and Linux. Basically ...
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1answer
237 views

Kernel Development with Raspberry Pi

I want to start working and playing with linux kernel. Instead of trying on my own system, I want to do the same on raspberry pi. I want to compile my own kernel and start working on my first kernel ...
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3answers
2k views

Raspbian Jessie apt-get update fails ERROR: Hash Sum mismatch

Please find the attached snip, for the complete error message. This is the second time I've faced this issue, last time it happened I tried couple of different things updating source list file or apt-...
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1answer
51 views

Can't login to my Raspberry Pi anymore

I installed this package on my Raspberry Pi: sudo apt-get install libssh2-1-dev libssh2-php And when I rebooted and was going to login with Winscp I got the error message: Disconnected: No ...
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8answers
30k views

Can't get a CIFS network drive to mount on boot

I have added a share in fstab to access a network drive with all my files on... fstab looks like: proc /proc proc defaults 0 0 /dev/mmcblk0p1 /boot vfat defaults 0 2 /dev/mmcblk0p2 / ext4 defaults,...
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2answers
22 views

No /etc-Folder in .img-File

I made an IMG-File of my LibreELEC and now i want to edit it on my Windows machine. I need to make changes in the /etc-Folder and I can't do that live on the system since LibreELEC is read-only FS. ...
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1answer
264 views

“No wireless interfaces found”

I accidentally ran the code on my terminal: sudo airmon-ng check kill Now when I try to connect to a wi-fi it says "No wireless interfaces found" I tried to edit /etc/network/interfaces but ...
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1answer
40 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 ...
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1answer
284 views

Tkinter application window in front of Chromium in Kiosk mode

On my Raspberry Pi I have created a tkinter application with one button and configured Chromium to start in kiosk mode. In my python application I set the following: root.lift() root.wm_attributes("...
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2answers
24 views

How to enable an addtional font in Libreoffice on the Raspberry Pi?

My goal is to use the font "Courier 10 Pitch" in Libreoffice on Raspbian Stretch on the Raspberry Pi 3B. At the raspi terminal, there is currently the following input and output: pi@raspberrypi:~ $ ...
2
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1answer
243 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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1answer
33 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 ...
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1answer
386 views

Raspberry Pi 3 Model B- 3M Touch Systems

I connected yesterday a Raspberry Pi 3 Model B at a 3M touch Systems touchscreen. For installing I followed this tutorial that I found here: Inverted GPIO Touchscreen (Using 99-calibration.conf) What ...
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1answer
248 views

Can't get past rainbow screen with Kali install process

I am new (to all of this, Pis, Linux, etc). This is my first real attempt at working directly with hardware as well. I needed a new project so I got a Canakit started set which came with a Raspi 3B+,...
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1answer
263 views

Install Emotiv Xavier Control Panel on Raspberry Pi3 / Raspbian Stretch

I want to install Emotive Xavier Control Panel on a Raspberry Pi3, running Raspbian Sretch. A version exists for Ubuntu Linux. Can I install this on my Pi?
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1answer
31 views

Earliest place in boot for output to I2C LCD (not HDMI)

We're using an embedded Raspberry Pi that uses a (I2C) 4x20 LCD (character) instead of HDMI. Since the boot process can take some time I'd like to get something on the LCD as soon as possible to say ...
4
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3answers
14k views

Installing Raspberry Pi Cross-Compiler

I am attempting to get cross-compiling for Raspberry Pi working on my Ubuntu machine. During my initial attempts I was using the arm-linux-gnueabi compiler, which is available in the Ubuntu repo. I ...
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1answer
298 views

Unable to connect wifi in Raspberry Pi 3 and os design for navio

The link below shows the images of the output error, i`ve been working this for hours I follow instructions from here but still doesnt work . Hoping that someone would help me figure out the problem , ...
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1answer
413 views

eth0 prioritize over wlan0, although it has no internet access

My pi is connected to my home router using wlan0, and have access to internet successfully When I plug my pi with an Ethernet cable, connected to other router, not connected to internet, I cant ping ...
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1answer
305 views

Change FIFO pipe buffer size in Debian?

I'm on the latest Raspbian Jessie. I'd like to increase the size of an open FIFO pipe buffer. I've already upped the max size via sudo sysctl fs.pipe-max-size=4194304 Then I'm attempting the ...
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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
35 views

Help with RPI ZERO W Kali Linux A.L.O.A

I have a raspberry Pi ZERO W and installed kali linux on to it.To be specific it's the Kali linux A.L.O.A and i have a wifi adapter that i want to setup but i don't know how and when if type ifconfig ...
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1answer
838 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 ...
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1answer
1k 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 ...
2
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1answer
38 views

Unable to open files with multiple lines in ssh session

I am having an issue where I cannot view/edit the contents of a file that is larger than a few lines of text/code. When I use nano to open a file the system hangs after displaying: "[Read N lines]" ...
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1answer
245 views

HDD spin down too fast

I have external HDD connected to raspberry PI. I wont to set the spindown time to 5 minutes. When I use sudo hdparm -S 60 /dev/sda it works fine. Of course, I set up APM before to 127 by sudo hdparm -...
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1answer
2k views

FS80H USB Fingerprint Scanner in Pi 3

I have a Futronic (model FS80H) USB fingerprint scanner. I am currently trying to get it to work with a Raspberry Pi. On their website they mention that on Linux it doesn't use any kernel mode ...