Questions tagged [raspbian]

Raspbian renamed Raspberry Pi OS (32-bit) is a family of GNU/Linux operating systems derived from Debian. Version numbering follows that of Debian and the current stable is 11 (Bullseye). Raspbian is the most widely used Pi based distro and the one recommended by the Foundation, who distribute their own customised images.

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How to save screen configuration?

I have a RPi 4 with 2 monitors running the latest version of Rasbian. For a few months, upon startup, the monitors have been mirrored where I would like them to act as one larger combined screen. I ...
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260 views

Cannot Pair Xbox Series X Controller via Bluetooth

I'm trying to pair an Xbox Series X controller to my Raspberry Pi 4B, but I've had no luck despite following all online instructions. I've disabled ERTM by running echo 'options bluetooth disable_ertm=...
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Raspberry pi 4 with two webcams

I am trying to run two webcams on raspberry pi 4 with raspbian OS. It works rarely with very low FPS. Most of the time i am getting this error: [ WARN:0] global /tmp/pip-wheel-qd18ncao/opencv-python/...
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How do I change a system environment variable [closed]

I would like to the change the color of the directory listings in my SSH sessions on my Raspberry Pi. The blue color is very difficult to see on my 4K display. It appears I need to change the ...
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Will these command sufficiently to connect 2 raspberry pi together?

I do not own raspberry pi so tested these commands in virtual machine. I clone 2 raspberry pi and and using the command sudo ifconfig eth0 192.168.1.1 for Pi1 and sudo ifconfig eth0 192.168.1.2 for ...
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392 views

Previously working Pi doesn't restart: ERROR 00000004

I am using my RaspberryPi 4 that's running Raspbian mainly for OpenMediaVault 5. There are various tutorials online that describe how I have done it. I don't know if I used this one at the time, but ...
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67 views

Rotary Encoder usig SPI Protocol for RPM Measurement

Raspberry pi : Master Rotary Encoder: Slave (14 Bit of Transmission ,3 wire communication (MISO,CLK,CE)) After each cycle of communication it is compulsory to toggle CS pin from high to low. when ...
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61 views

Access Multiple I2C Ports on Raspberry Pi CM4

I am working on the Raspberry Pi Compute Module 4. I would like to implement the 2 I2C ports for the 2 different types of sensors. (must be accessed within a single application) I am using the I2C ...
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How to stream web camera video with no static ip

My raspberry uses mobile data, hence it does not have static IP. I would like to stream video only to 1 client. How can I do that, without knowing the IP of the raspberry, but having a static IP on ...
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30 views

Looking for a guide to USB ports - and how to trouble-shoot when things stop working

Having recently had problems when connecting different devices to my Pi over USB I am looking for a guide (link to) that explains in more detail what goes on in the OS when devices are plugged in to a ...
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Custom keyboard gets "usb: connect-debounce failure" errors

I'm using the Raspberry Pi OS 64-bit version, updated to current, on a 4B with 8 GB RAM and a 512 GB SSD via USB3. I'm trying to use it with an IBM 122-key Model M keyboard with a custom STM32F411 ...
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52 views

Cross compile Raspbian kernel from Linux Mint to ARM

I want to cross-compile a Raspbian kernel that I downloaded from www.github.com/raspberrypi/linux on my host machine (Linux Mint Cinnamon 64bit). I was executing the following steps: Create folders ...
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63 views

raspi-config won't let me expand my filesystem

I used the included SD card to install my raspbian (Buster, I think) on a 32GB card. For some reason the card filled up (that will be a question for another day), so I copied an image of the card to a ...
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56 views

Linaro cross toolchain 32 bit or 64 bit?

I am developing a kernel on my PC (running Linux Mint 64 bit) and want to transfer that code later onto a Raspberry Pi 3B+ running Raspbian 32 bit. Now I am confused. Do I need my IDE to pick my gcc-...
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BlueZ 5.58 Connection Fail

I am working on the BlueZ 5.58 library using the Raspberry Pi 4. So far, I am able to install an updated version of the BlueZ 5.58 & making sample test cases. (refrance BLE GATT Server) While ...
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198 views

Raspberry Pi Secure Boot Configurations with Authentication IC

I am working on the Raspberry Pi Compute Module 4 with raspbian buster (command line only) os. I want to secure my Raspberry Pi, I have read some solutions on that. As I see there some manufacturers ...
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23 views

BlueZ 5.58 Authentication using Public & Private key

I am working on the BlueZ 5.58 library using the Raspberry Pi 4 module on Raspbian OS. I have found that the agent.py application has implemented the public-private key & fixed key authentication. ...
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How to prevent reading data off the emmc of the compute module

I want to protect the contents of my eMMC flash so that it cannot simply be cloned by a third party. Is there a way prevent the PI from letting anyone read the contents of its on-board storage?
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121 views

Raspberry Pi Pre-Installed BlueZ

I am working on the Raspberry Pi 4 board with the Raspbian Buster OS. I have found that the BlueZ library Pre-Installed on the Raspbian Buster OS. pi@raspberrypi:~ $ bluetoothd -v 5.50 pi@raspberrypi:~...
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66 views

Raspberry Pi Compute Module 4 - USB

I am using the Raspberry Pi Compute Module 4 & referring to the Raspberry Pi DataSheet. Here I found that the Compute module has only one USB port. I would like to use multiple USB ports & I ...
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104 views

RPI cups server slow on pdf

I got my RPI acting as a print/scan server and is done by following the guide from [Print/scan server][1] [1]: https://samhobbs.co.uk/2014/07/raspberry-pi-print-scanner-server I am running latest ...
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72 views

Raspbian default route issues at startup

I have a RPi running Raspbian 10 (Buster) that cannot reach the internet after reboot. This unit provides all DNS services for the internal network, and had been working before the ISP router (which ...
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32 views

"Bad message" when trying to access a directory on external hard drive

I'm running a media server using a Raspberry Pi 4 with an external hard drive connected via USB 3.0. One issue I've been seeing for a while is "Bad message" returned when I try to ls or stat ...
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15 views

Raspberry 3bw with arpi 600 and tds sensor

I am a totally beginner with raspberry py. I am a blind guy and running orca. I just recieved the Raspberry 3bw with a arpi 600 HAT. Connected to the HAT is a tds sensor on pin 15. What I need to ...
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477 views

Using a USB Bluetooth dongle on Pi 4

I recently purchased the Techkey Bluetooth dongle since I know the Pi system is unable to connect to multiple Bluetooth devices simultaneously. Unfortunately, I haven't had any luck doing so. I got ...
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24 views

Interface Contact Image seneor with Raspberry pi

How can we connect Contact Image sensor (hp/canon) With Raspberry pi Directly. Actually I want to make a scanner only by using Raspberry pi and Contact image sensor. Do i need to use extra modules to ...
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50 views

How to to change the cursor theme using terminal/cli?

I am still working with different Os's, i am currently working with raspberry pi-os and i want to know how to change the mouse cursor using the terminal?
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70 views

Raspberry Security Update

I would like to have some insight on how to keep a Kiosk system built with Raspbian automatically update with security fixes. I configured unattended-upgrades, but with the default configuration, it ...
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18 views

how to write data on the emmc of the Compute module 3+ in read only mode

I am working on the Compute Module 3+ with 32GB emmc.i want to write data on emmc in read only mode so my data will be safe incase of any power failure etc.
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Why does updating Raspberry Pi OS keep breaking my system?

For some weird reason, updating Raspberry Pi OS keeps breaking my system. For the second time since setting up my Raspberry Pi 4 (8GB RAM), my microSD card has been corrupted and cannot run the OS. ...
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22 views

Error in autorun script, RASP 3

I need to run a script in lxterminal in boot. The unit is headless, just have a digital button to start the process in the code. I already have a automatic pi user loggin and a .desktop created in ...
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30 views

Raspberry PI wireless access point poor range

I have configured my Raspberry PI 4 as wiresless access point for my hobby project. I have used this tutorial: https://www.raspberrypi.org/documentation/configuration/wireless/access-point-routed.md I ...
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2answers
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Do not see raspberry PI in network after install with Raspberry PI imager

I've installed Raspberry Pi OS Lite on flash drive with Raspberry Pi Imager. After that I've added SSH and wpa_supplicant.conf (I've taken this example to create the config). And after that I've ...
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57 views

MITMProxy in RaspAp

I have installed raspap in my raspberrypi and added captive portal to it. I wonder if it is possible to intercept https requests and modify them? When I was searching, I've found that MITMProxy is an ...
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1answer
25 views

Can only initiate ssh ethernet connection to Pi when PC is off WiFi

I can seemingly only connect to my Pi via an ethernet cable if I have temporarily disconnected from WiFi. Once I login, I can reconnect to Wifi, and I can talk to both my Pi and use the internet. ...
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46 views

Cannot install Docker-Compose - Docker is installed

I recently bought a Raspberry Pi 4 Model B with two 32GB SD cards. I installed Raspbian on the first card and I have played with it for a few weeks. I installed Docker; Docker-Compose and created a ...
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23 views

How to take out the noises of the servo motor?

I am using the 3b+ raspberry, while the accelerometer is acquiring data the servo is creating some noises which may give false readings. Does anyone have any idea how to get rid of these noises? I am ...
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34 views

ad hoc on raspbian buster pi 3

I have read a few other questions about this topic in this network and other places. The problem is they are all different and none of them have worked on Buster. Here are my questions: 1- With ad-hoc,...
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87 views

DietPi does not detect Wifi. Raspbian does detect WiFI

I recently bought a Raspberry Pi 4 Model B with two 32GB SD cards. I installed Raspbian on the first card and I have played with it for a few weeks. Yesterday I installed Diet Pi on the other SD card ...
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1answer
25 views

Crontab not running python file to MySQL

I have a python script that takes sensor data from a DHT11 and inputs the data into MySQL. This file when ran in the terminal on my Raspberry Pi returns the right results: python3 ./Data In which will ...
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1answer
70 views

Can we read the emmc flash of the compute module 3+

As we can read the data from the sd card.but in compute module 3 plus there is choice between sd card and emmc. if we flash the raspbian os on the emmc and make changes on it then do we read that ...
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Driver corrupts OS

I've been working on a PI project, I am using Waveshare 7" touchscreen, now I need to download driver to enable touchscreen, I tried downloading it from their website: https://www.waveshare.com/...
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73 views

Raspbia, after a reboot, wifi is only working if a ethernet cable is attached

my problem is that my wifi is only getting an IP address if ethernet cable is also plugged in. I have checked many sides, but the solution below is not working. (funny thing, I have reinstalled this ...
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27 views

How can I get my pi3 to consistently display to the monitor?

I have a pi that will not stay awake and display to the monitor consistently. After 10 minutes it will blank. Here are the methods I have tried so far: Adding xscreensaver, and editing it in the menu ...
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1answer
45 views

Raspbian ad hoc networking issue with wlan0 set to type ibss

I am following the instruction given by How to setup an unprotected Ad Hoc (IBSS) Network and if possible with WPA encryption? but the probelm occurs when I get to the line iw wlan0 set type ibss An ...
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36 views

Kernel BUG at drivers/mmc/host/bcm2835-sdhost.c:1093!

I'm trying to emulate the raspi3 on my jetson nano and at the same time I want to enable this network interface : --netdev user,id=net0,hostfwd=tcp::5022-:22 -device usb-net,netdev=net0 \ but to do ...
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1answer
26 views

Booting: Error messages and flashing screen after installing Retropie

My Raspberry Pi 4 has an issue when booting. I installed Retropie (not as dual-boot or boot) on it a few days ago. After i rebooted the issue started appearing. The screen goes from rainbow-phase to ...
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SIM not detected ! Raspberry Pi connected via a 4g huawei e3370 USB modem using a SIM card

[Updated] I have a 4g huawei e3370 with a rpi 3. I am trying to configure my modeme e3370 but I am getting an error: SIM not inserted. Do you have any idea? Here is my /etc/wvdial.conf : [Dialer ...
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24 views

how to create new network interface at boot on the Pi-Zero-W, without killing the wlan0

Working on Rasbian on the Pi-Zero-W(Pi0W), I've managed to follow a guide to get Aircrack-ng to work as a wifi probe sniffer (https://medium.com/swlh/scanning-for-mobile-devices-through-wi-fi-using-pi-...
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1answer
1k views

Raspberry Pi not booting "recover4.elf is not compatible"

I've bought x3 Raspberry Pi 4 4GB Model sets a while ago and was very happy with it. I've been working on the one and cloning the same SD-Card onto other 2, so I could have the same system state on ...