Questions tagged [ubuntu]

Ubuntu is a Linux operating system derived from the Debian distribution.

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36 views

Fan won't turn off on shutdown

I am trying to make sure my fan turns off when I power off my raspberry pi (without having to unplug it). My fan is connected to the 3.3V pin. I didn't connect it to the 5V pin because I deemed the 3....
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0answers
12 views

How to extract aarch64 vmlinuz gzip image?

I am trying to PXE boot Ubuntu 20.04 aarch64 on the pi 4b but I am stuck at the point where I need to extract the kernel image vmlinuz-5.4.0-1028-raspi. I tried to zcat and pipe it out but I ended up ...
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1answer
24 views

Raspberrypi4B: Unable to establish a BLE connection between RPi4B and Ubuntu Laptop

I am unable to establish an ble connection between my Raspberrypi4B and Laptop. Configuration is as below: Laptop: Ubuntu-20.04.2 LTS, bluez version: 5.53 Raspberrypi4B: Ubuntu-21.04 bluez version: 5....
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22 views

Raspberry pi 4 gives vertical color lines on bootup

I am using a Raspberry pi 4 model B 4GB with ubuntu 20.04 installed on a 32GB memory card and when I booted, I got a display with vertical color lines. I tried using multiples displays and all results ...
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14 views

uart2-5 Raspberry Pi 4

I am using an Raspberry Pi 4 os-ubutun-mate 20.04(focal) I am trying to to enable uart2 and uart3 on my Raspberry Pi 4. However, I'm not sure how to do this? I've read several articles and posts ...
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17 views

Mount SMB share while being able to change owners

It's pretty hard for me to explain what I'm actually looking for. So I'll describe what I'm trying to achieve: I'm running Ubuntu 64 bit, docker with Traefik 1.7 and Portainer on my RPI 4 Now I'm ...
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2answers
22 views

User getting removed from group after reboot

I am running Ubuntu Server 20.04.02 LTS in my RPi 4b. I ran into the problem that I couldn't access the GPIO without sudo/root with my python scripts so I changed the /dev/gpiomem group ownership to ...
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0answers
22 views

Picamera on Ubuntu 18.04 64-bit

Is there any way to get picamera to work on Ubuntu 18.04 64-bit. I have tried: Compiling a non-official version of userland for 64-bit and it compiled, but the camera does not work I have tried using ...
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0answers
22 views

Running Ubuntu ARM64 on RPI is unstable

I installed Ubuntu 20.10 on usb SSD drive for RPI4. Dragging the terminal from one side of the screen to the other I noticed it started to glitch. I loaded Firefox to search for the issue online and ...
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41 views

Playing Netflix on Ubuntu 20.10 Raspberry Pi4 8GB

Is there an easy way to get Netflix working on Raspberry 4 running Ubuntu 20.10 64bit? I have tried numerous ways including: https://github.com/monkaBlyat/docker-chromium-armhf But it fails on step: &...
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14 views

Rpi Camera in ubuntu server 20.04 raspistill working, but python picamera and c++ raspicam not

I have been able to get the rpi camera v2 working on ubuntu server 20.04 (64bit) by using raspistill. However I am having trouble getting it to work with the python package picamera and the c++ ...
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19 views

SSH running, can connect but no authentication working

I just installed Ubuntu server 20.04.02 onto a new SD card, the rpi unit (rpi3) has ethernet. I can connect from my ubuntu laptop, but all authentication is failing (as show with sudo systemctl status ...
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18 views

Not able to mount D-Link DMW-156 on ubuntu system

D-Link DMW-156 is a 3g USB dongle, when I plugin to the usb it shows green light for few seconds and then red light.Have tried the following commands on the terminal. sudo mount /dev/sr1/mnt mount: /...
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14 views

RPi.GPIO on ubuntu 14.04 running ros. Python 3.6.3

I'm trying to controll the GPIO pins while running ROS on ubuntu 14.04. First i got the error that went something like "can only run on a raspberry pi!" So I upgraded my python to 3.6.3, now ...
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0answers
11 views

Camera in raspberry pi shows no input on screen

I am new to using raspberry pi I have rsp 4 model b, I need it for a college project I am doing, I bought a camera module for it. and it doesn't show output on screen using "cheese" I am ...
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1answer
25 views

Do I install Ubuntu Mate via a USB or do I make the SD card HD a bootable image? [closed]

I have a RP 4. 8gb. My SD card got erased. So I reinstalled the original boot using Raspberry Pi Imager. Now I want to use Ubuntu Mate as my OS. Do I leave the SD card in the RP4 and then have a ...
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1answer
41 views

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Raspberry Pi 4 8GB Ubuntu 20.04.2 LTS Before this happened, I was able to run a bunch of Docker containers without an issue. However, my Pi suddenly stopped working (wasn't able to SSH into it, wasn'...
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19 views

Display colour (ICC) profile on Raspberry Pi 400 running Ubuntu 20.10

I have a display, which really requires applying proper correction in order to deliver good, readable output. It's never been a problem on x86/amd64 Ubuntu. Now I have it connected to a Pi 400 running ...
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1answer
47 views

Wrong password creating on first boot (cloud-init) (Ubuntu 20.04 server, RPI 4)

I try create preinstalled user for Ubuntu 20.04. For this i add some entries in accordance with official docs, to /etc/cloud/cloud.cfg (config for cloud-init ) Old: users: - default My: users: ...
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1answer
44 views

How can I enter Ubuntu desktop recovery mode?

I removed gdm and install lightdm, after that I am stuck at infinite loading. Pressed Ctrl + Alt + F2, unable to use TTY... And I cannot enter recovery mode by press shift... What can I do for it?
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1answer
27 views

Ubuntu server is not booting using the custom image option

I want to install ubuntu server on my Raspberry Pi 4. I used the Raspberry Pi imager with the image Other general purpose OS > Ubuntu > Ubuntu Server 20.04.2 LTS. But it turns out that this ...
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1answer
42 views

Is ubuntu 20.04 compatible with raspberry pi 400?

I use a usb 3.0 for mass storage (with boot). But my OS (ubuntu 20.04) is very slow. What can I do to make it faster ? (I'm on raspberry pi 400)
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1answer
52 views

Install Ubuntu 20.04 on Pi 4B

I have a Pi 4B (4GB) on which I want to install Ubuntu 20.04.2 Desktop. The Raspberry Pi Imager gives me the opportunity to only install Ubuntu 20.10 Desktop or 20.04 Server. Older versions of the ...
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1answer
29 views

Pi 4 Ubuntu 18.04 Desktop Flash

I want to flash the Ubuntu 18.04 LTS Desktop image(x64) onto my Raspberry Pi 4B 4GB RAM(I have my reasons). I am looking online at tutorials. It doesn't look like many people have done this. I'm ...
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1answer
147 views

Disable USB 3 (use ehci instead of xhci) on Raspberry pi 4

I'm trying to disable USB3 entirely on my raspberry pi 4 running Ubuntu server but I can't find a way to do it. Some things that I've tried are: Blacklisting xhci - doesn't work because it's a ...
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1answer
46 views

Distorted Images from Raspberry Pi Camera Ubuntu 20.04

Hardware: Raspberry Pi 4 Model B Ubuntu 20.04 64-bit Raspberry Pi Camera V2.1 I'm using OpenCV's VideoCapture to capture images using the Raspberry Pi camera module, as the picamera module isn't ...
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1answer
77 views

How to build initramfs for custom kernel from cross-compile machine

I'm trying to start my Raspberry Pi with a custom 5.10.y cross-compiled Kernel for https://cdimage.ubuntu.com/releases/20.04.2/release/ubuntu-20.04.2-preinstalled-server-arm64+raspi.img.xz with ...
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0answers
55 views

Does WiFi sniffing work on the Pi 4? How?

Is there a trick to getting WiFi sniffing working on the Pi 4? I can get it to display its own traffic - either in tcpdump or Wireshark - but not traffic for other network nodes. I have tried ...
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0answers
24 views

Ubuntu 20.10 for pi4: There was an error creating a child procsess. fix

This is what happens when I launch the terminal Failed to open PTY: No such file or directory So I have been using the Ubuntu terminal on my raspberry pi 4 model b 8gb with Ubuntu for a couple moths ...
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1answer
41 views

Trying to make PI 4 into headless VPN, WiFi hotspot and provide VPN connection to a VOIP adapter [closed]

I’ve looked at this board and done quite a few Google searches and haven’t found what I’m looking for. I have read a few replies to posts that say the writer should include more information and be ...
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0answers
21 views

Idle Model 4B running > 115 C = damaged?

So today I noticed a 4B I was bringing up on Ubuntu 20.04 (server) was actually crashing due to heat. I managed to stop docker etc, and captured CPU measurements of ~115 C. I was purchased late last ...
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2answers
1k views

RealVNC Server on UBUNTU 20.10 (ARM64) on Raspberry Pi 4

RealVNC only provides a 32bit app for Raspberry Pi OS (32bit) and not a 64bit native application, at least for now. I'm using Ubuntu 20.10 on my Raspberry and need to use RealVNC to remotely access ...
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1answer
53 views

Ubuntu 20.10 aarch64 (Raspberry Pi CM4) how do I access 1-Wire devices?

Running Ubuntu 20.10 aarch64 (Raspberry Pi) on a Compute module 4 Am scratching my head on how do I access 1-Wire devices? I've tested by DS18B20 sensor using Raspberry Pi OS and it works by enabling ...
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0answers
15 views

official POE HAT with fan on ubuntu server for raspberry pi [duplicate]

How to setup fan on ubuntu server for raspberry pi4b with official POE HAT with fan? it seems the default behavior is spin and stop on an interval, or by default is temperature based behavior? OS: ...
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3answers
223 views

Install melonDS on a raspberry pi

I'm looking to install a great DS emulator on a raspberry pi4. It's called MelonDS and it is available for Linux. I attempted to install on the 64bit ubuntu image. This is what I tried. sudo snap ...
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1answer
138 views

Unable to detect NVMe M.2 ssd in raspberry pi 4 8gb

Is it possible to use an NVMe M.2 as external storage on a Pi4b 8GB? I have the following PCIe device: samsung NVMe PCIe 3.0 SSD 970 Evo plus, 500 gb + external hard drive enclosure with a C to A ...
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0answers
19 views

How to get a2dp on Ubuntu server

I have Ubuntu server installed because of 64 bit support. Most of the solutions out there rely on bluealsa, which is available on raspbian only. Is there an easy to use Ubuntu option?
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1answer
17 views

MATE desktop doesn't work correctly

So, I decided to install the KDE Plasma desktop and see how it would go. I installed it (all dependencies took up 1.3GB of storage) and tried it out, and didn't like it too much. It takes about ~100MB ...
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1answer
235 views

Raspberry Pi 4 8gig Ubuntu server 20.10 wifi power management and interface down

I am trying to get my Pi 4 setup with Ubuntu 20.10 server using WIFI. I have setup the WIFI correctly at the time of creating the image. I know this because I have a RBI 3B+ that I have done the same ...
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0answers
21 views

Black Login Screen

0 So on my Raspberry Pi 3B, I currently have Ubuntu MATE 20.04.1 installed. I wanted to try out different desktop environments, so I installed xubuntu-core and lubuntu-core with all the recommended ...
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0answers
89 views

Raspberry Pi freezing at boot during CloudInit after installing Lubuntu

Raspberry Pi Specs: Raspberry Pi 4 Model B (4GB RAM) 32GB SD card with Ubuntu Server as the OS Canakit case Canakit fan Three heat sinks The Problem I started with a freshly installed version of ...
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0answers
72 views

Spotifyd in docker on Pi4

Has anybody got spotifyd working in a docker on a Pi4? I tried https://hub.docker.com/r/ggoussard/spotifyd but it is not working. Running ubuntu server arch reports aarch64. But only the armhf version ...
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2answers
229 views

Good KDE distros for RP4?

I’m looking to work with a KDE distro on my RP4. I’m most familiar with the Ubuntu family but it doesn’t seem Kubuntu has an ARM image. Fedora has a KDE spin but not sure I want to go that route just ...
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2answers
68 views

How do I turn off a raspberry pi without use of desktop?

I basically softlocked my raspberry pi 4 8gb using ubuntu when I attempted to put a shell file on my taskbar. I used nano to put scrot in an .sh file for easy screenshots, and when I tried to put it ...
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0answers
33 views

Sensehat apt package on Manjaro ARM? Insights?

First post on here. I have a Raspberry pi 4b+ 8GB that I am super happy with. I've been messing around with different operating systems on this device and I find that the Manjaro ARM distro is really ...
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1answer
72 views

HDD with separate power supply randomly unmounts

I have a very strange issue with external HDD (4TB) attached to my rpi 4. External drive has it's own chassis with power supply. I chose this chassis especially for my rpi project in order to prevent ...
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0answers
20 views

Best way to get “Ubuntu”-like window shortcuts?

I am looking for a simple way to set/use the same window management shortcuts as in Ubuntu (e.g. Super+LeftArrow => fill LH screen). A more complete list can be found here: https://itsfoss.com/...
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0answers
15 views

Restoring missing Grub/Splash screen

On MATE Bionic, I remember there is the screen with the MATE logo and the five dots. I kinda liked that. I upgraded to 20.04 after flashing 18.04 and now it is missing. I don't have problems in ...
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1answer
39 views

ubuntu 18.04 server official release

Does anyone know where i can download the OFFICIAL release of Ubuntu 18.04 server for the pi4? All I can find on canonical's website is Ubuntu 20, which is incompatible with the software i need to run....
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0answers
56 views

IP Camera Ethernet Direct Connection

I've been struggling with this for the past 12 hours. I am trying to connect my IP Camera to my RPI running ubuntu that's on a cellular hotspot wifi for internet. I cant seem to get my camera to ...

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