Questions tagged [ubuntu-core]
Ubuntu Core is a minimal version of Ubuntu intended for large-scale deployments, bringing transactional updates through the "snappy" packaging system.
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Unable to change display resolution on ubuntu-frame with Raspberry Pi
I'm using a Raspberry Pi 4 that I've loaded with Ubuntu Core 22 32-bit using the Raspberry Pi Imager. This Pi will be used in a kiosk mode without external keyboard and mouse, as it's a touch display.
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Disable serial console on Ubuntu Snappy
I would like to know is there any method to disable serial console on Snappy? I am using raspberry pi build. I need this because I have to use /dev/ttyAMA0 to communicate with hardware module.
CommunityBot
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Snap Docker service does not auto start container on reboot
I have a pihole server that I installed through docker
And I've installed docker through the snap command
sudo snap install docker
And the service is enabled and auto starts on boot.
qqerqqqr@ubuntu:~...
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How to track core(pp0) power consumption using powercap framework (RAPL interface)
I'm trying to monitor the energy consumption of CPU core (pp0) using the powercap (RAPL) framework in Linux. I've tried on two machines, but I can only track the energy consumption for the package and ...
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Cannot locate base snap core20: No such file or directory
I have been trying to run firefox but everytime i try to run it through the terminal commands, it shows "cannot locate base snap core20: No such file or diretory". I tried removing and ...
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How turn off Ubuntu Core login prompt tty
Is there a way to disable the login prompt after Ubuntu Core boot? The tty1 login prompt. I am running Ubuntu Frame.
The login appears after boot, the ubuntu frame renders a few seconds after the ...
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Does Canonical provide rootfs tarballs for Ubuntu Core anymore?
We used to find recent builds at https://partner-images.canonical.com/core/ but that last build available there now is from June of 2023. Since then, I would have expected newer versions to have been ...
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Broken snap core module
All my snaps were deleted by mistake.
After that all my apps are not working any more. After investigation using snap list command, I found that all my snaps are broken
I fixed all snaps using
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Ubuntu Appliance RaspPi4b Firmware- Keyboard & Mouse Don't Work
I am trying to install the Adguard Home Ubuntu Appliance image on an SD card to boot on a raspberry pi 4b.
In the beginning it didn't boot up, so I fixed it by manually modifying both the start4.elf ...
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Where do I find my public SSH key?
I am trying to do an initial installation of Ubuntu & know almost nothing about making it happen. It asks for an SSH key. Where do I find a public SSH key?
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Issue installing Canonical Livepatch - Error Message
I am facing an issue while trying to install Canonical Livepatch on my Ubuntu system. The error message I am encountering is as follows:
$ sudo snap install canonical-livepatch
error: cannot perform ...
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Ubuntu frame does not detect screen changes
I have a problem.
Im trying to run my apps in ubuntu-core using ubuntu-frame. But in some cases I have problems with my screens.
My environment is:
A normal PC with ubuntu core 22 and a video card ...
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Ubuntu-core from PXE?
Problem in a few words...
I'm working with ubuntu-core22 and have to deploy a lot of computers with my custom OS. (ubuntu-core with my snaps).
I created my own PXE server. To make some test I install ...
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Fail to login with Ubuntu One to Ubuntu Core 22
I fail to connect from a WSL2 default Ubuntu installation to a RPi Ubuntu Core 22 20220610.2. Download Link (and also from any other ubuntu version). It keeps asking me for a password. What password ...
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wpe-webkit-mir-kiosk Network Disconnect Unrecoverable
I am using wpe-webkit-mir-kiosk on Ubuntu Core 22 on a raspberry pi 3b like the following:
snap set wpe-webkit-mir-kiosk url=https://www.mysite.com
My use case is a digital dashboard that loads a ...
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Ubuntu-Image fails to build image
I am using Ubuntu-Image to build an image for ubuntu with several snaps as outlined here:
https://ubuntu.com/core/docs/using-ubuntu-image
I have been able to build images without issue for a while now,...
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Build custom kernel snap for Ubuntu Core 22
The goal is to use Ubuntu Core 22 on IoT devices as a base. I need to include a custom proprietary driver as kernel module. I tried the following guide
Building a kernel snap but this seems to target ...
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What is devmode for snaps?
I have heard about the ability to use snaps in developer mode.
What is this mode and what can I use it for?
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Ubuntu Core 22 installation stuck on raspberry pi4 B
My Raspberry Pi 4 is stuck at this point while installing Ubuntu Core 22 as shown in the attached image.
I waited for about 2 hours, but cannot see any progress. I wrote the Ubuntu Core image using ...
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Unable to run ubuntu-frame in Hyper-V on Windows 10
I'm attempting to run ubuntu-frame through Windows virtualization as I have on physical hardware (NUC). However, for both Ubuntu Core-22 and Ubuntu 22.04 LTS (server), ubuntu-frame fails to start ...
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How to remove uninstalled snaps from cache?
When I install a snap with snap install <SNAPNAME> then it is being downloaded and mounted. When I remove it with snap remove <SNAPNAME> then 'everything' is being deleted like the snap, ...
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Installed ubuntu-frame with wpe-webkit-mir-kiosk and only get a gray screen
I followed the (relatively simple) instructions in official documentation to install a web kiosk on a ubuntu-core 22 raspberry pi4.
I only get a gray image and can't set the website to display. It ...
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Trouble SSHing into Raspberry Pi with Passwordless SSH Key on Ubuntu Core 20
I have successfully created a bootable Ubuntu Core 20 SD card using Raspberry Pi Imager. I generated an SSH key using PuTTY Key Generator without a password and added it to my Ubuntu account's SSH key ...
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cannot write a remotely mounted file
Before opening my nextcloud server to the internet i'm trying to harden its security by configuring its sshd_config file.
Its a ubuntu core server so i can edit files only through sshfs.
The thing is, ...
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Can't attach canonical-livepatch with my token
I just successfully installed and configured an Ubuntu Core 18 image for Intel Dawson Canyon and June Canyon NUC by following this official guide to run (mainly) my Nextcloud instance.
The choice of ...
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Snap binary override by binary placed in /snap/bin
I moved a geckodriver binary to the /snap/bin directory. Now, after a reboot, my snap binary isn't working, and it seems that the geckodriver override the binary.
Now with more details:
Basically I ...
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Learning how to use Snapcraft
I have started a project to create handy network sensor that can be deployed in locations where physical security may be lax/ non-existent. The goal is to design a device that uses Ubuntu Core for (...
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username/password for ubuntu cloud image in virtualbox
I have downloaded ubuntu cloud 22.04 ova image from below link and started the same in virtualbox 7
https://cloud-images.ubuntu.com/jammy/current/
On boot up it asks for username/password as shown ...
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Provide self-signed SSL certificate for first boot of Ubuntu Core 20 on KVM
I want to try out Ubuntu Core 20 on KVM, running on my Ubuntu 22.04.2 LTS Desktop. I am in my company network which means I need to use a self-signed SSL certificate in order to login with my app ...
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Ubuntu core - Difference between snap set and direct change in filesystem
Ubuntu core has some configuration options. I do not understand what is the difference when I configure system through this "snap set" or directly in /etc folder? (e.g. netplan can be ...
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Ubuntu-Core Desktop/Raspberry Pi
I have "snapped" Core22-desktop to an RPI but how is is executed?
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Ubuntu-Core Password
So, I believe I had done everything correctly as outlined in the following:
ssh-keygen to create private and public keys in ~/user/.ssh, id-rsa and id_rsa.pub files created. Password was created for ...
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Ubuntu-Core Profile Screen
Complete profile screen:
I have partially installed Ubuntu Core and have registered my email with Ubuntu. But now I am at a screen to complete the profile. Searching for a solution has been ...
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Lost SSH access to ubuntu snappy core
I have ubuntu snappy core installed on my dragonboard.
I set it up using SSO.
It worked fine to ssh to the dragonboard from the desktop computer with ssh keys and no password.
Suddenly after years, ...
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Is an Ubuntu One account necessary for Ubuntu Core?
I have been installing both Ubuntu Server 22 and Ubuntu Core 22 over the last two months in order to learn more details about it.
One of the main difference I see is that when I install Ubuntu Core it ...
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Can I use Nvidia GPU on ubuntu-core-22 and use ubuntu-frame for display?
I have a computer with an Nvidia GT 1030 graphics card, and I'm trying to use ubuntu-frame to display a simple website. Initially, the prompt is displayed without any issues. However, when I attempt ...
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Does Ubuntu Core support LVM?
My initial try at Ubuntu Core got me surprised by the lack of LVM (Logical Volume Manager) commands. The Snap store doesn't seem to have anything either.
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Ubuntu Core 20 won't boot on amd64 machine
I'm trying to install Ubuntu Core 20 (custom model) on a Dell Wyse 3030LT box, but I'm having trouble booting it. I can boot Ubuntu Desktop fine to write the image to the machine's internal storage, ...
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Web server on Ubuntu core 22
I started development for ubuntu core. I want to host my php web app on the ubuntu core. The problem is that it is snap based OS an I can't install apache2 and other packages what i need to host my ...
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Ubuntu Core 22 64 bit - Raspberry Pi 4 - SSD boot loop (full Ubuntu boots fine)
I'm using Raspberry Pi imager to write the provided images to SDCard/HD/SSD
Raspberry Pi 4 eeprom is upgraded to the latest version, and no sdcard is present during the issue.
Booting Ubnt Core 22 ...
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Difference between Ubuntu Base, Core, Minimal
Is there a simple explanation of the differences or use cases of the three versions mentioned?
I need a secure digital system whith python support, internet access which only shows a browser. It ...
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Aborted Ubuntu installation
I have aborted an Ubuntu installation.
Now the label and icon of one of my disk drive is changed to
Install Ubuntu (C:)
I tried to rename it manually but i failed.
Can it be fixed ?
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Unable to ssh into ubuntu core on NUC
I have installed Ubuntu Core (ubuntu-core-22-amd64.img.xz) on a NUC. Using these instructions: https://ubuntu.com/core/docs/install-nuc.
When I get the screen, which is similar to when I have ...
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Error finding matching public key for signature with ubuntu-image device
I am following the tutorial for creating a Ubuntu Core image on the Ubuntu website and getting an error. Here is the link to the instructions:
https://ubuntu.com/core/docs/create-model-assertion
The ...
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How do I copy firmware to /lib/firmware in Ubuntu Core 22 LTS?
My problem is with Ubuntu Core 22 LTS. It's running on my rasp3b+ with tvheadend. My terratec h7 needs a firmware file that I have on hand. My problem is that I can't copy the firmware file to `/lib/...
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How to build Snap including multiple directories and files in Snapcraft.yaml
Is there a example in https://github.com/snapcrafters that would show how to add multiple directories and files as part of the snapcraft build?
I have an entire directory tree that would need to be ...
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How to perform unattended install of Ubuntu Core from USB flash drive
There is a way to setup Ubuntu Server unattended install by creating a custom ISO file with instructions in preseed and programming this on a USB flash drive to install Ubuntu Server on a industrial ...
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How to install Ubuntu Core (2 versions) into separated hard drives
I want to install 2 Ubuntu core distributions to 2 separated hard drives in one PC.
I tried but there is only one distribution shown in the boot sequence menu.
How can we change the file /boot/grub/...
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Error using pciutils.lspci on Ubuntu Core
I have installed Ubuntu Core on a IoT device and I am going through a number of steps to figure out why a cellular modem is not being detected on it with modem manager.
I want to run the lspci command,...
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'snap refresh' reports pkgs are updated while newer pkgs are available in upstream
Question
I think I should be able to install a newer version. What am I missing?
Issue
Release-notes of a package home-assistant-snap shows the latest ver is 2022.5 and yet on my Ubuntu Core on RPi3 ...
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