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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Ubuntu Core 22 - seeding network config in custom image

Can anyone point me in the right direction for seeding a network config into a custom image? Documentation seems rather limited on this topic with Ubuntu Core. I found the system.network.netplan ...
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Ubuntu core 22 recovery mode

I'm trying to get into recovery mode by keeping the '1' pressed on my keyboard while booting. Also tried to keep hitting '1' key while the system is booting up. Nothing works. Tried with 2 different ...
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How to reinstall snap command line on Ubunto core without using apt

Attempted to fix an issue I had with connecting to snapcraft. I ended up disabling snapd, which then seems to have removed the snap path/directory completely. Now I can't use the snap command anymore ...
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ubuntu frame installation fails on ubuntu core 18

I'm new on ubuntu core and just installed ubuntu core 18 on UP2 board with a Lilliput USB Screen (not the exact model) but when i try to install ubuntu-frame it fails image installation error Anyone ...
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Rapid 7 scan documentation or report for Ubuntu

Is there any Rapid 7 scan documentation or report for Ubuntu? There are few things like Partition Mounting Weakness, ICMP redirection enabled, No password for Grub, UPnP SSDP Traffic Amplification ...
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Installing Ubuntu Core on Intel NUC

I'm trying to install Ubuntu Core on my new Intel NUC i7. I am following this guide and have made it step 7 - First boot setup. I get to the display where the prompt "Press enter to configure&...
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Hardware information in Ubuntu Core

Does anyone have any information on how I can list the hardware details within Ubuntu core? I am specifically looking for details of the WiFi adapter. So far I realise that none of the tools such as ...
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Ubuntu 22.04 Dell E7440 boot error message not found on log files

I recently installed Ubuntu 22.04 on my Dell E7440. A red-colored "FAILED" message appears on booting, and is quickly overwritten. I cannot read the message: the screen quickly changes. I ...
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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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Will Ubuntu Core on Raspberry Pi ever have USB boot support?

I've looked all over and have yet to find anything of use regarding USB booting on Ubuntu Core for the Raspberry Pi. Using the SD card on the Raspberry Pi 4 platform is way too slow for the ...
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Ubuntu Core 20 not powering off or restarting

When powering off my installation of Ubuntu Core 20, the device hangs on the line kvm: exiting hardware virtualization Here is the dmesg output that it hangs on
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Libreoffice snap, symbolic links to zfs not accesable

I have a mirrored zfs drive, for archive data and working documents. I have linked my ~/Documents to /zpool/user/Documents, and also ~/Pictures, etc. When I install LibreOffice using snap I can not ...
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Ubuntu Core 20 arm64 Raspberry Pi 4 4Gb "start4.elf not compatible"

I have installed Ubuntu Core on my SD card and run it on a RPi 4 4GB of my school when I didn't have mine and I could run the installation procedure and boot the os with no issue. But when I have ...
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Ubuntu Core20 corporate network settings (proxy and ca-certificate)

I've been trying to evaluate Ubuntu Core at work, and I've run into some issues getting started... Following instructions from https://ubuntu.com/download/kvm, I can get the image (ubuntu-core-20-...
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Creating Ubuntu ssh keys in Windows 10

I am trying to install Core 20 on RPi4 and cannot get past the email address for my account. If I go to the Ubuntu page to define the ssh keys, it says to use the keys already defined. It does not say ...
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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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On first successful connection, the prompt asks for password on Ubuntu Core

What password do I have to enter? I didn't setup any password. I tried several different core versions and several core appliances such as https://ubuntu.com/appliance/adguardI have also tried and ...
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Ubuntu Core 20 cannot start after install due to needing a recovery key

I'm trying to install UC20 on an Optiplex 7040 Micro. It's set up in UEFI Secure Boot mode, the disk is completely clean, the TPM is clear. I'm able to get as far as applying the image to my disk, ...
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How to run a Python script on Ubuntu Core 20

I would like to run a Python script on Ubuntu Core 20 without making a snap. How can I do it - is it possible?
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Is there any way to get Microk8s snap working in Raspberry Pi Ubuntu Core 20

I have Raspberry Pi 4 with 4GB menory and 64GB memory card. I followed this tutorial to install microk8s. In ubuntu core install part the tutorial says: "we recommend you select the latest ...
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What's the cleanest way to get git onto ubuntu core?

there's plenty of reasons to use git on ubuntu core, e.g. with python3 or to run things like docker-compose (core comes with python3 and docker is available as a snap). However, there is no git ...
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Ubutu Core on Rasberry Pi 4 8Gb: trying to SSH into it, and I am being denied? (using PuTTY)

The SSH key was created using PuTTY Key Gen is 4028 RSA.It is saved on my SSO on login.ubuntu.com. When I set up the Ubuntu Core it says that my device is registered to my email and that my ...
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Raspberry Pi-Tools in Ubuntu Core?

Linux Distributions for the Raspberry Pi like Ubuntu oder Raspberry Pi OS (formerly Raspbian) usually come with the rpi-* and raspi-config to configure/enable the hardware and update the EEPROM and ...
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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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Ubuntu Core SSH login

I've flashed Ubuntu Core 64-bit image on RPi and have completed Ubuntu Account with SSH key. The RPi on the other hand has acknowledge the SSH key and display it's current IP address (ssh username@192....
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Is there really no iscsi support in Ubuntu Core 20?

I am trying to use ubuntu core 20 as a iscsi initiator. iscsiadm is not available. Documentation at ubuntu has no information about iscsi. Is there really no iscsi support in ubuntu core 20?
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KIOSK - Running Firefox Snap on Ubuntu Core 20 inside Ubuntu-Frame

Appreciate any help in answering if it is possible to run snap version of Firefox on Ubuntu Core 32-bit IoT within Ubuntu-Frame? I'm currently using Raspberry Pi 4 (4GB), but planning to move the SD ...
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Moving from Snaps to Apt (home desktop situation) [duplicate]

While I understand that developers maintaining versions appreciate snap functionality, home users probably won't. People install Ubuntu for home use, as a replacement of other OSs, one of the reasons ...
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Disable the Build in DNS Service in Ubuntu-Core

I have using Ubuntu-Core as for my Raspberry Pi 4 for running Docker on it. Now I plan to use the Pi-Hole Container on it for AdBlocking. This container acts as a DNS Server in my network. But on ...
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Ubuntu Core and Docker

The default install of Ubuntu Core on my RPI doesn’t appear to have docker installed. Does anyone know how I can get docker and docker-compose up and running?
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Trouble completing snapcraft tutorial on Ubuntu 20.04, Raspberry Pi 4

I am trying to package my first snap with the ultimate goal of deploying an app on Ubuntu Core 20. I am new to snapcraft and multipass, so I'm following the "Create Your First Snap" tutorial ...
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Ubuntu Core 20.4 can't ping Opto22 Snap Pac Brain

I'm working on a Raspberry Py 4 with the lastest Ubuntu Core 20.4 64bits. I need to be able to reach and use a device, the Opto22 Snap Pac Brain Model SNAP-PAC-EB2. This device is linked to the ...
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How to attach USB Storage to the Plex RPi Appliance

I recently saw Ubuntu had release an official Plex Appliance for Raspberry Pi, so figured I'd take a look. After install, I've connected up some USB drives with media for Plex, and realise that USB ...
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How to use 5G module as an interface?

I am using Ubuntu core 20 and 5G module called Simcom SIM8202G-M2 (it connects via M2 connector but eventually uses USB protocol). After plugging it in, I can see from the dmesg that drivers were ...
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Unable to load the kernel image of imx8 device

I have created Ubuntu core image using Kernel snap and gadget snap using snap craft , after flashing the generated image in sd card and connecting the sd card into the iMX8MP-EVK board the board is ...
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Why are some commands like "apt" missing on Raspberry Pi 3 Model B with Ubuntu Core 20?

I have Ubuntu Core 20 installed on a Raspberry Pi 3 Model B, but the commands that I am trying keep failing. Commands that I have tried: locate, apt, apt-get, dpkg, lsb_release, and more, but they all ...
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ubuntu core - best practice for backup public/private keys

we are testing to use Ubuntu Core for our IoT sensor/control devices I was trying to emulate a situation, where if a key is compromised, what is the best practice for the ssh key pair. In all the ...
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How do I add and mount a new hard drive in an Ubuntu Appliance running on a NUC?

Background: I initially read through the How to use the Nextcloud Ubuntu Appliance tutorial and have successfully deployed Nextcloud on an Intel NUC. It's already configured and working through ...
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Automating installing Ubuntu Core, without serial port and without signing into account

I am currently busy with a project for standardizing the processes surrounding an embedded device we export as a product. On this device we wish to use Ubuntu Core (UC). However, part of this ...
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How can Ubuntu Core be installed to lxd?

As described by http://ubuntu.com/blog/ubuntu-core-in-lxd-containers, Ubuntu Core can be installed via http://snapcraft.io/lxd by executing lxc launch images:ubuntu-core/16 ubuntu-core. The tutorial ...
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What's the official support period for Ubuntu Core releases?

There recently was talks on Meta about the support period of LTS and non-LTS releases on this site. In addition, I saw the mention of Ubuntu Core in a comment, and this got me wondering what the ...
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Ubuntu Core not booting in Raspberry pi 4

I've been running Ubuntu Core (I guess 18) in a Rpi 4 4Gb like charm for a while. The only use was a nextcloud server. About a week ago the system stopped running and now it doesn't boot. I only get ...
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Ubuntu Core 20: "Out of resources" before installer starts

I'm trying to install Ubuntu Core 20 onto a pretty grunty Dell R420 Server with 192GB RAM and 4 x 2TB storage. I believe that it meets the requirements of having 384MB RAM (512MB with UEFI Secure Boot ...
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Use both wifi and ethernet with internet connection

I'm looking for help to configure network on ubuntu core, I changed the netplan config and I manage to connect to both wifi and ethernet at the same time but there's an internet connection only on ...
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Ubuntu core: snapd has no slot named "audio-playback"

I am trying to play a video from YouTube using the mir-kiosk and wpe-webkit-mir-kiosk, but there is no sound while the video plays. I tried playing a local video file with mpv kiosk but ran into the ...
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Python snap package: setup.py -> install_requires vs snap package yaml file -> pacakges

Following this tutorial on how to make a snap package out of python code, it says one must have a setup.py. setup.py has a install_requires field which list all the package it requires. Now the snap ...
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Custom Ubuntu Core images purpose or benefit?

I followed this tutorial on how to make a custom image: https://snapcraft.io/tutorials/create-your-own-core-20-image#1-overview Is the purpose of making a custom image just to include custom snaps? Is ...
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NextCloud Home Ubuntu appliance on Raspberry Pi booting from an SSD disk

With the proper updated boot loader a Raspbery Pi 4 model B can boot from an SSD drive connected to the USB3 port typically with an SATA - USB converter. This is well known and works well with both ...
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Wifi-Ap snap, Simultaneous Client and Access Point now working

I've tried running "Simultaneous STA / AP Mode" using wifi-ap snap as described here: https://discourse.ubuntu.com/t/simultaneous-sta-ap-mode/19964 Tested on Ubuntu Server 20 and Ubuntu Core ...
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Ubuntu Core 20 on an old machine

I am trying to install UC20 on an old Dell machine. The machine has no UEFI capability. CPU is Intel 2160@1.80 GHz with 2GB RAM. I installed UC20 using dd on this machine. However, before grub I get a ...
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