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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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 ...
feder's user avatar
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Ubuntu Core - "EFI sub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path"

First of all, I'm new to Linux in general. I did try searching on here but was unable to find anything, but then again, I'm also relatively new to using SO other than stumbling across here via Google. ...
HHashi's user avatar
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Is this a LivePatch bug in Ubuntu 22.04

I've just tried the command line approach again. Here are the results: arno@arno-PC:~$ sudo pro detach [sudo] password for arno: Are you sure? (y/N) Y This machine is now detached. arno@arno-PC:~$ ...
ArnoVersfeld's user avatar
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Can we install .deb package on Ubuntu Core OS 16 version

Can we install .deb package on Ubuntu Core OS 16 version Is it supported and recommended.
Jayashree Madanala's user avatar
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3 answers
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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 ...
Sukrati Saxena's user avatar
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Install latest python on Core

I have a blank install of ubuntu core and am trying to install python. I have tried the following snap install python snap install python3 snap install --edge python I receive error: snap "...
Simon's user avatar
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snap mounted `core20` as media

When I logged in today there was an icon in the dock that looks like I had plugged in an external drive. After some investigation i found out that this is $ mount | grep media /var/lib/snapd/snaps/...
hiro protagonist's user avatar
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Boot from SSD with Ubuntu Core 22 on a RPi4

Ubuntu Core 22 comes with Piboot, which is «the one-stage bootloader on Raspberry Pi, offering user experience improvements like booting from external devices and better support for hats» Ref: ...
Joachim's user avatar
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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 ...
Four0Four's user avatar
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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 ...
user1912594's user avatar
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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&...
ubuntunuub's user avatar
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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 ...
Flavio Sartoretto's user avatar
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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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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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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 ...
Frank Gould's user avatar
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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 ...
Bostjan's user avatar
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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?
Lucan's user avatar
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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 ...
tikettun's user avatar
5 votes
1 answer
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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 ...
Matt Ridge's user avatar
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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 ...
Hadmut's user avatar
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2 answers
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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 ...
Roman Janiczek's user avatar
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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?
PKDO's user avatar
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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 ...
Envisage's user avatar
2 votes
2 answers
3k views

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?
Larry Toso's user avatar
2 votes
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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 ...
Pali Varga's user avatar
1 vote
1 answer
5k views

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?
WhiskerBiscuit's user avatar
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1 answer
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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 ...
rj_code's user avatar
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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 ...
AronGomu's user avatar
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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 ...
Steve Martin's user avatar
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1 answer
887 views

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 ...
ayush agarwal's user avatar
6 votes
1 answer
2k views

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 ...
Dylan Hatz's user avatar
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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 ...
KrisP's user avatar
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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 ...
tbjers's user avatar
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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 ...
Ezra's user avatar
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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 ...
RokeJulianLockhart's user avatar
22 votes
2 answers
799 views

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 ...
Artur Meinild's user avatar
1 vote
0 answers
472 views

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 ...
josh's user avatar
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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 ...
Louis Emard's user avatar
2 votes
0 answers
366 views

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 ...
Ahtasham Ahmad's user avatar
0 votes
0 answers
112 views

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 ...
run_the_race's user avatar
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226 views

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 ...
JensOtto's user avatar
1 vote
1 answer
569 views

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 ...
heol's user avatar
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0 answers
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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 [email protected] GHz with 2GB RAM. I installed UC20 using dd on this machine. However, before grub I get a ...
tinkertwain's user avatar
1 vote
0 answers
78 views

Upgrate Ubuntu Core 16 -> Ubuntu Core 20

I have a Rapberry Pi 2, with Ubuntu Core 16 running. Is there a way to upgrade to Ubuntu Core 20 without reinstalling the whole OS? Thank you.
Carlos 's user avatar
1 vote
1 answer
259 views

Do we have a Ubuntu Base image that we can use for creating a custom ISO?

Need to create a custom ISO using Ubuntu Base image but I am unable to find one for the same. Can someone please help me find the Ubuntu Base image and also CLI method of creating an ISO from it ?
Ipsit's user avatar
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1 vote
0 answers
120 views

chpasswd encrypted option failing in Ubuntu Core 20

I have an Ubuntu Core 20 VM. using the below script file adding a user and trying to change password with below lines of code. script file is executed with root access File.sh: user="test" ...
rajkan's user avatar
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7 votes
2 answers
12k views

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 ...
Findus's user avatar
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1 answer
90 views

Is Ubuntu Core for Raspberry Pi discontiued?

On Frontpage of Ubuntu for Raspberry Pi images Ubuntu Core is missing. But I am sure I used to get Ubuntu Core images from there. Is it discontinued?
Findus's user avatar
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