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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.

2
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4answers
52 views

How to retain the ability to use SSH across different wireless networks

I set up my Raspberry Pi to run on Linux, and I use it as a portable computer. I'm trying to find a way to maintain SSH across different networks while retaining the ability to manipulate it using SSH ...
0
votes
1answer
1k views

How to solve blank screen issue on Raspberry Pi GUI?

It's my third day with my Raspberry Pi. I do know Linux. I am all good with using SSH with my Raspberry Pi but I do need a GUI sometimes. I tried installing vncserver, tightvncserver and now xrdp but ...
0
votes
0answers
229 views

Can't open Kivy file on Raspberry Pi (KivyPie), no error message

Device: Raspberry Pi 1; Distribution: KiviPie 1.0 (based on Raspbian); Updated and upgraded packages; Tried python, python2, python3 Hey, I suddenly can't open kivy files on my Raspberry Pi (...
1
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0answers
1k views

How to connect to Raspberry Pi from linux PC with serial connection

I've bought a Raspberry Pi 3 model b and a new design of Berryclip which is supposed to include the USB to serial adapter as an additional microUSB port for the Raspberry. Now I've been told that the ...
0
votes
1answer
215 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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0answers
327 views

How to press enter during booting without keyboard on ubuntu?

I updated my raspberry pi 3. Now every time I boot it says: cannot open access to console root account is locked. Press enter to boot I am able to boot when I press enter using the keyboard. I ...
0
votes
1answer
77 views

Raspberry Pi3 is not working without internet connection

My Raspberry Pi3 won't boot unless I connect it with an Ethernet cable to my router or to my laptop. What if I wanted to use the raspberry Pi in a place that has no internet connection? Any suggestion ...
1
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0answers
133 views

What kernel file to use for piCore 9 on qemu?

Trying to load qemu with the good old "kernel-qemu" file results in a sync error. qemu-system-arm -M versatilepb -cpu arm1176 -hda piCore-9.0.3.img -kernel kernel-qemu -m 256 -append "root=/dev/sda2" ...
0
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1answer
150 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 ...
3
votes
1answer
1k views

Removed dbus from raspbian

I have accidentally removed my dbus file on my Raspberry Pi 3 Raspbian OS ( full Operating system version) (not raspbian lite). I used the command apt-get remove dbus to do this uninstall of dbus. ...
1
vote
1answer
693 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 ...
1
vote
1answer
2k views

How to: run .sh script with rc.local

I have the following: server pi and client pi both running latest update version Raspbian Stretch I have a .sh script on the client pi to update the time from my server pi. When I run this manually ...
1
vote
1answer
3k views

How to disable wireless AP on RaZberry

I'm trying to set up a home automation system using a Raspberry Pi 3 (with a RaZberry 2 Z-Wave controller) and the Z-Way Z-Wave Controller. I've set up my Pi with a complete SD card image, as ...
0
votes
2answers
4k views

Unable to run `@reboot` crontab at reboot

I am trying to run two Python programs at reboot with my Raspberry Pi 3. The problem is that crontab doesn't run at reboot. I tried to run the programs with crontab every 5 minutes and everything ...
-2
votes
1answer
885 views

unity game in raspberry pi

i create a game in unity Unity 5.4.1f1 using windows ,i build the game for the Linux devices with x86 bit and 64bit but when i launch the app in raspberry he can't now the type of file and tell me to ...
2
votes
1answer
278 views

Where does “printf”-output go if executable is autostarted?

I wrote a small C executable that uses "printf" statements for debugging, like printf("Starting up...\n"); When I run the executable in a Terminal window with ./myProgramme all the printf output ...
-2
votes
1answer
2k views

connect UHF RFID reader with raspberry pi 3 using rasberian [closed]

i have a UHF RFID i am using raspberian os . i connected the tx rx and gnd to raspberry pi . but i dont know how to read a tag. and there is no sdk available for linux platform . can anyone guide me ...
0
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2answers
3k views

There is no eth0 when I input ifconfig

I'm uing Raspberry Pi3 but I could not see ethp when I input ifconfig. I can only see enxb827eb844b0c : xxx lo: xxx
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0answers
160 views

Raspberry Pi 3 won't boot. Green led flashes once and then twice

For university, I am using a "custom" embedded Linux(kernel, root filesystem) and a cross-compilation toolchain. This is used for my Raspberry Pi 3, however as my question has stated it doesn't boot. ...
0
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2answers
165 views

I have Kali installed on a micro SD card for my raspberry pi zero 1.3

I can't get internet in the pi and I need to install a firmware for the internet dongle to work and also make isn't installed. So is there any way I can like boot into the SD card and install and make ...
0
votes
1answer
52 views

Control Pi from RedHat terminal

I have a Raspberry Pi 3 that I connected to a laptop and I am trying to control the Pi from my other laptop that has a Red Hat virtual machine installed. I have connected them using an ethernet cable ...
4
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1answer
3k views

libstdc++ Error: `GLIBCXX_3.4.22' not found

I was trying to cross-compile dlib for Raspberry Pi, using the arm-linux-gnueabihf compiler. After successful runs of cmake and make -j4, I ran python setup.py bdist_wheel --repackage, which created ...
0
votes
2answers
341 views

Rashberry Pi: No-ip - Cannot access ssh

I am setting up DDNS for my Rashberry Pi to access from anywhere, followed the instruction All seems good after setup, but I cannot access Rashberry Pi with ssh My command in terminal: ssh pi@xxxx....
2
votes
3answers
2k views

Configure Rpi 3 for ethernet router with jessie

I am configuring my Rpi 3 as ethernet router. I have used dnsmasq for configuring dns and dhcp server. The configuration files are given below. /etc/network/interfaces auto lo iface lo inet loopback ...
0
votes
0answers
833 views

Real time clock is not updating system time on Raspberry Pi on boot

I am new to Raspberry Pi and Ubuntu. I was provided a Pi (model 3 v1.2) running Ubuntu (Ubuntu 16.04 LTS) with a hardware clock (pcf8563) connected to the board. I followed this tutorial https://learn....
1
vote
0answers
183 views

Cannot start the Google Cloud SQL Proxy on RPi 3

I am trying to install Google Cloud SQL Proxy to my RPi 3, but it does not work after install the LINUX-64BIT proxy and the below command on this page Connecting mysql Client Using the Cloud SQL Proxy ...
3
votes
0answers
70 views

Implementing a system call for CPU hotplug on RPI3/ModelB

My goal is to implement a system call in linux kernel that enables/disables a CPU core. First, I implemented a system call that disbales CPU3 in a 4-core system. The system call code is as follows: ...
-5
votes
2answers
98 views

Why do you prefer raspberry pi? [closed]

I am looking for a computer to be placed inside a turnstile. Someone suggested to me that I can use raspberry pi. Yet, I don't have knowledge in it but it sounds interesting so I'd like to try. There ...
0
votes
0answers
121 views

Implementing a system call for CPU hotplug on RPI3

My goal is to implement a system call in linux kernel that enables/disables a CPU core. First, I implemented a system call that disbales CPU3 in a 4-core system. The system call code is as follows: ...
1
vote
2answers
9k 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?
0
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2answers
2k views

RPi3 running bash script on boot

I've tried several times with slightly different tutorials (including here) to run a bash script when my Pi boots, however still no luck. I have a simple script that uses screen which I installed so I ...
1
vote
1answer
47 views

why does my raspberrypi 3B not able to reboot each time power is shut down?

I installed raspberian in my raspberrypi. It worked for the first time. But when I shut it down, it didn't reboot again. So, I had to format the sdcard and reinstall the raspberian again. And ...
1
vote
1answer
993 views

glibconfig.h no such file or directory

I just installed glib in Raspbian(Debian version). I want to read a config file using glib. I am trying to write a C application in Codeblocks and I use the header #include <glib.h> But I ...
0
votes
1answer
217 views

Kernels running SCHED_FIFO and SCHED_RR scheduling policies respectively for Raspberry Pi 3

I want to create two kernels for the Raspberry Pi 3. One running all the processes with only the SCHED_FIFO policy, the second running the processes with only the SCHED_RR policy. Can somebody help ...
1
vote
2answers
1k views

RaspberryPi: Auto fix root-filesystem at boot-time

I have several RaspberryPi's running (~100). After a power breakdown some devices no longer started with the following error message: It seems that the root-partition is broken. After I have ...
1
vote
1answer
4k views

How to install fonts?

I very much like Adobe's Utopia fonts and already installed it in other Linux distris, but with Raspbian it doesn't work. I copied them first to /home/pi/.fonts and then also to /usr/local/share/...
6
votes
2answers
3k views

What does each of the default groups on the raspberry pi do?

I need to create a more limited user for the raspberry pi. I can guess what some of these groups do (cdrom, sudo, i2c, spi) but what do some of these other groups do (adm, dialout, pi)? Here is the ...
-1
votes
1answer
163 views

Proxy Setup Unsuccessful

I have done proxy setup (both /etc/environment and /etc/apt/apt.conf) still cannot connect to internet neither through WIFI nor Ethernet. Please help its urgent.
0
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1answer
4k views

Setting Custom Baud Rate in Minicom

I am trying to get a Raspberry Pi to communicate with a microcontroller via a USB - Serial adapter. The microconrtoller requires a baud rate of 1562500. This rate is not supported as one of minicom'...
1
vote
1answer
326 views

How do you use Gnash?

So. Looking over the internet to find some kind of substitute to adobe flash, I landed on the raspberry pi forum or something (Forgot the link). I saw somebody talking about Gnash from GNU, and after ...
0
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0answers
53 views

Ubuntu core 16 fstab new entry lost upon reboot on raspberry pi 3

I installed Ubuntu core 16 image on Raspberry pi 3. When I added new entry in /etc/fstab to mount windows share upon reboot, that entry is lost. I looked at df -h output as shown below and it appears ...
7
votes
4answers
1k views

Create a Raspberry pi backup without dd

I would like to backup the entire content of my Raspberry Pi SD Card on linux PC. I have found online many tutorials that suggest to use dd to perform the operation. However my SD Cards have a wide ...
0
votes
1answer
100 views

Adafruit IO Error [Errno5]

I'm an amateur Raspberry Pi user and I'm trying to run this program: https://github.com/caternuson/rpi-weather The files are all in Python 2.7. I believe I have wired everything up correctly, and ...
1
vote
1answer
88 views

GParted permission issues

On newly updated/upgraded Pi 3 B I can list (lsusb) the device - eternally connected/powered hard drive GParted will not detect the same device. I can access the device via File Manager parted ...
1
vote
1answer
319 views

Stuck on Rainbow Screen after kernel upgrade on CentOS7

I ran 'yum update' on my Raspberry Pi3 running Centos7, and now it will not boot. Both LED's are solid (no flashing) and it does not get past the 'Rainbow Screen'. The following packages were ...
1
vote
0answers
202 views

CUPS authentication issue when printing to thermal printer connected to Pi

I have this Adafruit Mini Thermal printer connected to a Pi running Raspbian Jesse. I have CUPS installed on the Pi and can print directly to the printer without any issues. But when I try to print ...
1
vote
0answers
233 views

How deep can a virtual machine like VirtualBox emulate Raspberry Pi?

Currently I have the firmware code for a device running on Raspberry Pi. I want to use a linux computer that I have to test the device out using a virtual machine like Virtual Box (To connect it to ...
4
votes
2answers
440 views

Thermostat for greenhouse

I want to prepare a homemade thermostat for my greenhouse project. I have enough knowledge about electronics and linux based embedded systems but I'm not skilled enough in programming, so let me ...
1
vote
0answers
124 views

Python Google drive upload not working continuously

I am trying to build an auto image Google drive up-loader with raspberry pi and a web-cam but the python script I wrote after executing once properly doesn't seem to work if I execute it again ...
3
votes
1answer
191 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 ...