Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
21 views

Raspberry Pi - Remote / Attached Access - Plug and Play

OK I wont go into the reasoning apart from the fact that I need to find or research and create an EASY Plug and Play solution to enable Raspberry Pis to be used in a classroom environment. Criteria ...
5
votes
1answer
274 views

Installing Linux on Raspberry pi 3 b+

I am currently going through tutorials explaining how to install linux kernel on the raspberry pi, most of the tutorial (an example) recommend the use of an SD card and to install the kernel on it. so ...
0
votes
3answers
55 views

Apache permissions on local network [closed]

I'm playing around with some automation for my home and have setup Apache and MySQL on my Pi along with a basic web page to control some pins on the Pi. I am wanting to set permissions on the whole /...
0
votes
0answers
21 views

Raspberry Pi 3 Model B As Dedicated Media Device?

Just ordered a Raspberry Pi 3 Model B From Amazon. I only want to use it to play MP4 videos from external sources, via a USB port obviously, since they only have limited (SD) storage on-board. I've ...
0
votes
0answers
71 views

PPS ioctl failure in GPS

I am using U-Blox AG GPS in my Raspberry pi 3. My GPS had a fix and displayed all the data in a right way. After an hour of working, it is not getting a fix. So I checked the gpsd status. It displayed ...
0
votes
1answer
412 views

Reading Multiple bytes in Raspberry Pi over I2C using Wiring Pi library [closed]

0 down vote favorite I am trying to build one sensor interface using Raspberry Pi over I2C. I have installed WiringPi. I am seeing limitations of wiringPi library, that supports only 1 or 2 bytes I2C ...
1
vote
3answers
317 views

GPS on Raspberry Pi 3

I am using Raspberry Pi 3 with U-blox AG USB GPS. I am not getting a fix in it. To check the data coming out of GPS I used the following command: sudo cat /dev/ttyACM0 It did not show any data. My ...
1
vote
0answers
69 views

ftrace + addr2line

I want to get kernel source code file name and line number of a kernel function from the function address that ftrace outputted on Raspberry Pi 3. I tried addr2line -e /boot/kernel8.img [function ...
1
vote
0answers
47 views

LIRC Doesn't detect remotes

I've got some data that I want to send through IR, and I've got one remote working, with this config file. However, this is the only config file that LIRC recognizes. I've been putting all files into /...
6
votes
2answers
3k views

What is the vcgencmd command?

I know what it does, but what does the name mean? Is it a acronym? In one sentence, how would you explain vcgencmd to someone new to Linux?
0
votes
0answers
159 views

Linux obexd server utility OPUSH file receive

Using sdptool, I have added the OPUSH and FTP profiles against my bluetooth stack on Linux (yocto Linux to be precise). Given below are my profiles: Service Name: OBEX Object Push Service RecHandle: ...
0
votes
2answers
119 views

How to read a specific register using spi_xfer from PIGPIO

I am building a single channel LoRa gateway using the RFM95W module. I am using this github repo; single_chan_pkt_fwd, as a guide. However I am not yet using a PCB, even though it is very difficult, ...
0
votes
0answers
7 views

How do I block USB & LAN Card in raspberry pi [duplicate]

The Problem block USB & LAN Card in raspberry pi What I Have Tried I added blacklist usb_storage or storage-usb in /etc/modprobe.d/raspi-blacklist.conf to block USB in raspberry pi but did not ...
0
votes
1answer
133 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 ...
1
vote
0answers
158 views

CentOS 7 network setup

I am setting up a Pi3 B+ as a homeserver. Intended uses are running a Pi-Hole, using it as NFS share and to automate stuff like backups. I decided to use CentOS for its reputation of running smooth ...
1
vote
0answers
49 views

What does Ctrl-A do in Raspbian terminal?

In macOS terminal, I'm used to pressing Ctrl-A to move the cursor to the beginning of the line, for example when I forgot to type sudo. I tried this in Raspbian stretch lite, and it froze the system, ...
0
votes
0answers
16 views

Use tmpfs for delta changes

I would like to run my Linux os (Raspbian) from an read only usb stick. However it should be possible to update the operating system. The changes should be stored in Ram (get lost after reboot). Is ...
4
votes
1answer
148 views

What OS version is installed

Users often seem confused about what Pi model they have and what OS version is installed or how to find details. Where is this located?
0
votes
2answers
79 views

wget - options to save all new files

I am attempting to use wget to download all new versions of a single file from a server. The file is updated once an hour at an unspecified and variable time. I am running a cron script that runs ...
1
vote
0answers
33 views

Unwanted calls of program with GPIO

I configured a Raspberry Pi 2 with a button. I have a script in python, which will call a command, if someone press the button. The command doing a sip phone call to a phone server (cisco ...
0
votes
0answers
33 views

Help recovering files on Raspbian from a former WD MyBook World Edition II (Linux file system)

With my Mac I used to backup .jpg and .NEF (Nikon raw files) on a WD MyBook World Edition II network drive. After a few months I was not using it, I discovered it was not working anymore. On the WD ...
2
votes
1answer
210 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 ...
0
votes
0answers
235 views

Error starting apache web server on raspberry pi

I am attempting setting up my raspberry pi to be a web server. I have just installed the program today, so it is on latest configuration. I have gone with apache2. I have read that if entering my ...
0
votes
1answer
78 views

Which Distro provides Timely Security Updates and have the longest support cycle for Raspberry Pi 1,2 & 3? [closed]

I am looking for a Linux Distro that provides timely security updates for all Raspberry Pi variants. Please indicate if the update life-cycle is released based (preferred) or rolling/continuous. ...
0
votes
1answer
81 views

How to apply error correction.and detection On raspberry pi [closed]

I want to send data from rs232 to raspberry pi and I want to know if we can achieve error correction and detection on raspberry pi
-2
votes
1answer
86 views

How to write a script which execute multiple commands on multiple terminal windows

I am trying to make a script on the following basis: Open a terminal window (keep it open) and run cd ~/dir/dir/dir ./exec Open a second terminal window (keep it open) and run /usr/bin/xterm -font/...
3
votes
1answer
731 views

Cross compile kernel module

My goal is it to cross-compile a kernel module for my raspberry pi. But I have some compatibility issues with my kernel sources on my pc and the version on my raspberry pi. My Pi uses this version: ...
4
votes
1answer
89 views

Are there any downsides to using “apt” on the raspberry pi?

I normally use apt-get on the raspberry pi to update/install/etc., but I like just plain apt better because of the better interface and text coloring, etc. I can't seem to find anything on google that ...
0
votes
1answer
60 views

how to exit read only filesystem to get write permission to download a driver form github?

I am trying to set up a 5inch LCD on my rpi3. It runs Kali Linux, I'm on a no GUI boot and (automatically) logged in as root. When running the command (to download the drivers): git clone https://...
0
votes
1answer
51 views

Failed to ping eth0 from a LAN connection when I enabled the WiFi hot spot in Rpi 3

I have set up a WiFi hotspot in a Rpi3 board using this article https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md. I can ping the eth0 IP before I start hostapd and ...
0
votes
0answers
46 views

Automatic deployment in Raspberry pi?

I am using Rpi as the client machine in my project. Here I develope and edit my codes in PC and update it to the VCS. once I update code to the master from branch in GIT, the changes must be ...
0
votes
2answers
659 views

SSH not working on Raspbian

I can't get SSH to work on my newly setup Raspberry Pi 3. Installed a fresh image of Raspbian Stretch Lite. I am unable to access the machine in the LAN using SSH: pi@domoticz_pi:~ $ ssh 192.168.178....
1
vote
1answer
1k views

Edit system files on windows or linux [duplicate]

i've messed up the /etc/profile file and now i can't login to the rpi. Is there a way to edit this file on windows or linux ?
2
votes
1answer
111 views

Error with Packages, cannot update/install, cannot remove package

I keep having an error installing / updating / basically doing anything that concerns packages. I am trying to get an I2C library going and I can't get sudo-apt-get install i2c-tools to work from a ...
0
votes
0answers
25 views

Raspi Python thread, animation and waiting for mic

I'm trying to develop a robot... This robot has: a gui interface (that has some images, text,fonts etc) ; a gtts voice that keeps listen to my mic, and after that , send the text to google, and it ...
0
votes
1answer
753 views

Linux modules mismatch version

I have a very unusual condition, perhaps a partial update or unknown condition. #>uname -a Linux sip02 4.14.30-v7+ #1102 SMP Mon Mar 26 16:45:49 BST 2018 armv7l GNU/Linux #>uname -r 4.14.30-v7+...
1
vote
1answer
260 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 ...
1
vote
1answer
908 views

Connect external hdd ExFat

I'm trying to connect my external hdd which is in ExFat, but it won't mount it. I've got "fuse:device not found", but if i do fdisk -l, I can see it. Can someone know how to fit it ? Or if you have ...
0
votes
1answer
202 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 ...
0
votes
0answers
265 views

RPi3 with BlueZ sometimes cannot disconnect from connected BLE peripheral

Using a 2015 Raspberry Pi 3 Model B, though I believe this also occurs on the 2018 Model B+ (I have done minimal testing on the new pi but will update this post as I test it more). BlueZ 5.49 (latest ...
0
votes
1answer
206 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+,...
1
vote
3answers
616 views

Trying to Connect to Raspberry Pi through Ethernet

I'm trying to connect to a Raspberry Pi using the command ssh pi@raspberrypi.local (using Raspbian Stretch Lite) over Ethernet so I can configure Wifi on the Pi. However I keep on running into this ...
0
votes
2answers
485 views

No command line interface on HDMI but kernel logs printed

I'm currently trying to build my own custom Linux OS for my Raspberry Pi 3 and am experiencing some trouble. I'm using buildroot v2018_2. I configured the system using make raspberrypi3_defconfig ...
-1
votes
1answer
60 views

1 Gigabyte Image with GUI and Firefox

I'm looking for a super small image for my Pi < 1 gigabyte. I need it to fit within the memory of the Pi. I only have 4 requirements: long term availability, a Gui, Firefox, and ethernet drivers. ...
-1
votes
1answer
256 views

How could I use Wit.ai to get speech to text on my webpage running python script

I want the speech to be recorded by raspberry, send it to wit.ai and then get the response on my page(wich is actually the .py script and according to which I could run my conditions). Actually its ...
0
votes
0answers
19 views

Create Code that Directly Interfaces with X

I am building a program for media centers - think like EmulationStation but with more than emulators, such as Kodi and Firefox support. It’s meant to launch various programs, not play the media itself....
0
votes
0answers
41 views

Can't find xstartup

I follow instruction that I expect will allow me to copy/paste to Raspberry Pi 3 VNC session. I did sudo apt-get install autocutsel and trying to find /home/pi/.vnc/xstartup in order to add needed ...
0
votes
0answers
73 views

Disable command line terminal of HDMI

I want to disable command line terminal of hdmi screen at both boot and runtime so that on runtime or poweroff it should not appear. sudo sh -c "TERM=linux setterm -foreground black -clear all >/...
0
votes
2answers
1k 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-...
0
votes
1answer
618 views

Electron app just shows blank white screen on a Raspberry Pi

I am trying to load a program on an ARM machine which I was running on a Linux on an x86 machine. The program loads but just with a white screen. The program was developed using electron and when I ...