Questions tagged [ubuntu]

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

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Monitor turns blank when installing ubuntu on RBP4

need advice! I am trying to install ubuntu20.04 64-bit server on RBP4 8G with 32G microSD. I followed installation instructions mentioned on the raspberry official website, i.e. Installed Raspberry ...
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2answers
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Spidev missing?

New member (Pete) here, and I have delayed seeking help from a forum for the first month of my efforts with Pi, figuring I might in some ways remember things better if I work through the learning ...
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1answer
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SSH to/from Raspberry PI to/from ubuntu machine

I have configured SSH on my Raspberry Pi 4 to only accept public-private key authentication. I am successfully able to SSH from a Window's 11 machine to the Pi. First thing that I did was create an ...
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How to install DTBs overlays on Ubuntu Сore 20?

How to enable PWM device? There is no /sys/class/pwm/ devices. I did not find dts compiler or overlay config. Point to documentation of enabling GPIO devices: hardware pwm, spi, i2c etc.
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How to make a raspberry pi a remote desktop controlled with normal pc running ubuntu?

I have a raspberry pi 4b and a normal full-size pc by dell. The big pc has ubuntu on it, and the pi has raspbery pi os bullseye. I want to make the raspberry pi be a remote desktop that can be ...
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how to edit /boot/config.txt from the .img.xz file?

i have installed ubuntu-21.10-preinstalled-desktop-arm64+raspi.img.xz. is it possible to edit /boot/config.txt from the file itself so that we need not boot into the pi and then edit the config.txt ...
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Ubuntu 21.10 upgrade/images fails to boot on Raspberry Pi 4 8GB

I have three different Raspberry PI 4 with 8GB. The oldest of them fails to boot the Ubuntu image. After displaying the text for the GROWROOT on either a 32GB or 64 GB created microSD card, the ...
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1answer
72 views

Ubuntu Core & Raspberry Pi Zero 2 W

I'm trying to run Ubuntu Core 20 on Raspberry Pi Zero 2 W. According to Install Ubuntu on RPi this should work without a problem when using the 32bit version. Or with 64bit version using following ...
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How do I run synchronet on Ubuntu 20.04 64-bit?

Can someone provide complete steps for running synchronet on Ubuntu Server 20.04 64-bit? I managed to successfully compile with SpiderMonkey 1.8.5, but then I run into a segfault when a GET request ...
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1answer
37 views

Ubuntu on Pi Zero 2W Wifi not listed

I can't figure how to setup a Wifi connection on my pi zero 2, running on Ubuntu server 21. I tried many different things and here the results: Raspbian lite: everything works fine Ubuntu server: can ...
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Properly chrooting and unmounting on external USB drive

I found multiple guides how to correctly chroot into an arm64 system. In my example I am working with the 21.10 Ubuntu arm image for raspbian pi. I am wondering what is the "best" and most ...
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Connection too slow using RPi 4 and Wireguard

I setup a local home VPN on a Raspberry Pi 4 Model B 2019 Quad Core (4GB of RAM) running Ubuntu 20.04 connected to my home router using ethernet. I used PiVPN with Pihole for the setup. I setup the ...
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Reboot on using Microsoft remote desktop

I have a raspberry Pi 4 running Ubuntu. Most of the times I connect to it using Microsoft remote desktop, it hangs and then reboots after some time. Has anybody seen this? How can I find out why the ...
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RPi, Ubuntu, dual monitors no longer working

Raspberry Pi 4B 8GB; Ubuntu 21.10, X11; two BenQ EL2870U monitors I had some system problems after upgrading Ubuntu from 20.something to 21.10. Decided to start fresh: new disk, installed fresh ...
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Raspberry Pi 4 crashing(?) after OS is installed

I am trying to boot up my raspberry pi 4, but the green light (next to power) keeps blinking and then shutting down! I was able to install Ubuntu Desktop on the 32GB microSD, but as soon as I tried to ...
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1answer
60 views

do i get more io from a cluster?

suppose i have a cluster of 2 pi 4s (8 gig model and 32gb sd cards). i will get 2 seperate computers together having 4 cores and 8gb ram (based on jeff geerling's blog https://www.jeffgeerling.com/...
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How to build custom ubuntu desktop image with required package

I need to build ubuntu desktop image with my required package, please suggest the steps required. Thanks & Regards.
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1answer
858 views

netplan apply fails with "Cannot find unique matching interface for eth0"

Using Ubuntu 21.10, if I try to set a static IP for my raspberry in /etc/netplan/50-cloud-init.yaml, I have an error when I run netplan apply, that reads: Cannot find unique matching interface for ...
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3answers
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Ubuntu Server 20.04.3 LTS won't open a login shell on Raspberry Pi 4 (screen turns off)

I tried to install Ubuntu Server using the official Imager (so without downloading the image myself) Ubuntu starts to boot, I see some command line output. Too fast to read it all, I see e.g. ...
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1answer
71 views

How to set up picamera on Raspberry Pi 3 B+ with an Ubuntu 20.04 OS

I have a TurtleBot3 Burger robot which has a Raspberry Pi 3B+ on it. And the RPI has to run Ubuntu 20.04 OS, otherwise I can't use ROS and eventually the robot functionalities. The RPI has a picamera ...
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Enabling uart0 (ttyAMA0) and uart1 (ttyS0) on CM3 with Ubuntu 20.04

I am trying to enable the onboard uarts with a CM3 running Ubuntu 20.04 Server. I had no problem changing /boot/config.txt on an older raspian image, but on this one it doesn't work. I would like ...
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Enable i2c kernel support on ubuntu mate 18.04

I am having issues trying to enable i2c support for the raspberry pi 3B + with ubuntu mate 18.04. I need to do this in order to drive a few servos. The problem is the prompt doesn't show up to enable ...
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1answer
386 views

How to configure wine and box64 emulator on pi 4b

I have a raspberry pi 4b 8gb running ubuntu 21.10 desktop that I use. I want ot expand the uses of my pi and I want to run some windows programs. I installed pi-apps, a program helps you install ...
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67 views

How to install internet explorer and/or x86 emulator on raspbery pi 4b

I have a rasbery pi 4b 8gb and I want to install internet explorer on it. I am running ubuntu 21.10. I tried installing internet explorer 8 with PlayOnLinux and the installing window says "...
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Displaying an image on startup

I'm making a custom sheikah slate model, and I thought a screen displaying the map would be a very cool addition. The model will have no way of interacting with the Pi outside of turning it on, so it ...
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2answers
155 views

How do I install an older version of ubuntu on raspberry pi 4?

I need to install an older version of Ubuntu (20.04) desktop version for compatibility reasons. The Raspberry Pi imager v1.6.2 on windows only shows Ubuntu desktop 21.10 as available. I tried to ...
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1answer
1k views

Ubuntu 21.10 desktop environments freezing on Pi 400

I have created SD card with Ubuntu Desktop 21.10 using Pi Imager on Raspbian. It boots fine but when I interact with desktop environment, e.g. re-arrange the icons on the sidebar, the desktop ...
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1answer
156 views

Ubuntu: upgraded kernel is not selected in the next boot

My Raspberry Pi 4 was originally loaded with Ubuntu 21.04, but after yesterday's release of 21.10, I upgraded using the do-release-upgrade command. Among the other upgraded packages, there was a new ...
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1answer
69 views

Ubuntu Desktop fails to boot on Raspberry Pi 400 with 32GB SD card

I have used Pi Imager to write Ubuntu Desktop to my SD card. When I try to boot from it in my Pi 400, I get the following error: [50B]: Failed to remount '/' read-only: Device or resource busy systemd-...
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2answers
42 views

Can I use Ubuntu 8.10 on a Raspberry Pi?

I am working on a project that requires: An open WiFi network On that network, a device that has a known exploit. My plan is to use a Raspberry Pi to create that open WiFi network, then use another ...
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1answer
68 views

RPi Connects To iPhone hotspot, but Termius cannot ssh into RPi (Ubuntu 20.04 64-bit Server)

I would like to be able to ssh into my RPi3B+ based robot (running Ubuntu 20.04 64-bit Server) when away from my home WiFi. I have configured the bot to recognize either my home network or my iPhone ...
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1answer
141 views

PoE+ HAT fan not working correctly on Ubuntu 21.04

So I bought a new Raspberry Pi 4 (4GB) and the official PoE+ HAT. It is running the 64-bit version of Ubuntu 21.04 Server, completely updated. Controlling the PoE+ HAT-fan should/could be done through ...
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1answer
54 views

How to use gpiozero on RPi4 with Ubuntu 21.04, errored out NotImplemented

I'm trying to drive the motors from my RPi4. On the RPi4 4GB RAM, I installed Ubuntu 21.04. Here is the code, it used to be working on RPi Buster OS # import os # os.environ['GPIOZERO_PIN_FACTORY'] = ...
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44 views

Ubuntu Mouse and Keyboard not working via screen sharing

I installed Ubuntu Desktop (https://ubuntu.com/download/raspberry-pi) on my raspberry pi 4. I plugged in a mouse and keyboard for the installation and the setup of screen sharing. I use VNC viewer to ...
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1answer
61 views

unable to gps data serially in raspi 4

I am trying to get ublox zed f9p module work with raspi 4. I am using this module I am running on ubuntu 20.04 desktop version on raspi 4 and i have connected the module serially(/dev/ttyS0) to my ...
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1answer
46 views

How to copy files onto a raspberry pi os using only the microSD it is on - no networking, bluetooth or usb?

I would like to copy a file to a raspberry pi using a Macbook. I have installed ubuntu on the 64GB microsd and booted it up no problem. I have turned off bluetooth and wifi/networking on the raspberry ...
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1answer
65 views

Why can't my Raspberry Pi find any WiFi networks?

There is a similar question to my question, but the answers were more specific to that situation. I am running Ubuntu 21.04 on a Raspberry Pi 4b. I do not see any WiFi networks in the GUI WiFi pane, ...
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0answers
193 views

Getting pi-fancontrol to work when running Ubuntu

I've got a fan connected to GPIO 14, but am having trouble getting pi-fancontrol to work on my Ubuntu 21.04 install on an RPi4. The official docs say to run snap connect pi-fancontrol:gpio pi:bcm-...
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1answer
46 views

ssh session always freezes when running npm or unzipping large numbers of files

I have an RPi4 (4GB) that I use as a local development server running ubuntu 20.04. I connect to it using SSH and use git to download source code from my projects and run npm install to install the ...
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1answer
75 views

Need to see the console boot messages, not the splash screen

I am running Ubuntu 21.04 on RPi 4. On boot up, I would like to see the console boot messages in real time (and not the splash screen). On Intel PCs, that's easily done by editing the grub2 config ...
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1answer
137 views

How can I display Ubuntu Server 21.04 on a Waveshare 3.5" LCD display?

I installed Ubuntu Server on my Raspberry Pi 4. I have a 3.5" Waveshare display for it. Waveshare provides instructions to clone a GitHub repository and then run a script called "./LCD35-...
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0answers
36 views

Why isn't Ubuntu server displaying to HDMI on Raspberry Pi 4?

I flashed Ubuntu 21 Server to an SD Card with the Mac Raspberry Pi flashing application and it appeared to be successful. I inserted the SD card into the Pi and connected it to a power source. I am ...
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0answers
123 views

Temporary failure resolving 'ports.ubuntu.com' on Ubuntu 20.04

I have spent a lot of time looking for a solution to my problem. Everything I've tried hasn't worked so far. From what I understand, this is an internet connection problem or a DNS issue. I followed ...
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1answer
943 views

How to Resolve Port 53 Conflict Between, systemd.resolved and pihole-dnscrypt docker

Problem: port 53 conflict between systemd.resolved and pihole in the pihole-dnscrypt docker Setup: pi 4, ubuntu 20.04.2 (clean install) Guides for install: (1) https://github.com/losuler/pihole-...
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1answer
78 views

Is there a substitute for ejecting a SD card on ubuntu

I am having issues ejecting an SD card from an ubuntu Rpi in my bash script. When I run the command to eject, the following error is displayed NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT ...
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44 views

How Install Ubuntu 21.04 (Desktop) on Raspberry Pi 4 using Serial Console? [duplicate]

Hello how can I install ubuntu desktop 21.04 on raspberry pi 4 using serial console? I want to use the Raspberry Pi 4 UART pins to communicate using TTL to USB convert device to my windows 10 OS using ...
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2answers
96 views

Can we install AMD64 programs via Ubuntu on Raspberry Pi 4?

I was planning to download some programs from snapcraft.io and to invest in a Raspberry Pi 4 8GB, and install Ubuntu on there, so I can run it. I was wondering if this was possible by any chance? Wasn'...
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1answer
77 views

File Recovery from thumb drive - Bad Superblock

So I have a 64GB SanDisk Cruzer Glide, and recently something happened to it. Whenever I would try to fsck it said the magic number for the superblock was corrupted, I didn't know what that meant, so ...
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0answers
58 views

iQaudio DAC-pro hat not recognized by ubuntu 20.04 on rPi4b

I've added a iQaudio DAC-pro to my raspberry pi 4b running ubuntu 20.04. I cannot find the dac in amixer $ sudo amixer Simple mixer control 'Headphone',0 Capabilities: pvolume pvolume-joined ...
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26 views

Access remote `/dev/input/` on local machine

My robot needs to read input commands from a USB joystick which is physically connected to a remote desktop (Ubuntu). On desktop, the joystick is available for local user with permissions: crw-rw-r--+ ...

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