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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Configure Ubuntu Core on Raspberry Pi without Monitor/Keyboard
I'm trying to install Ubuntu Core for the first time on a Raspberry Pi3. I'm following the directions here: https://developer.ubuntu.com/core/get-started/raspberry-pi-2-3
The directions explain that ...
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How to produce Ubuntu Core 16 image with no SSO requirement?
I have to build Ubuntu Core 16 image for Raspberry Pi3 and it should work without any network, so without any Ubuntu SSO account. How can I add user/password account at image build time to login to ...
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Ubuntu on nxp i.mx7d board
Google is recommending nxp i.mx7d board as a good choice for android things. Since I would like to run NodeRed on this device I need to install system that will support NodeRed.
Is it possible to ...
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Allowing Firefox installed through Snap to associate links with non snap programs
I have just moved to Ubuntu 18.04 and am giving snaps a try, and so have set up Firefox as a snap package. Now I am trying to associate magnet links with my torrent client. I am however unable to let ...
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What is the support lifetime for Ubuntu Core?
None of the information I can find about Ubuntu Core mentions how long each release is supported for. The end of life page, and the releases wiki, make no mention of Ubuntu Core.
Does it follow the ...
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Ubuntu Core on Raspberry Pi 4 Install Configuration Too Fast
I'm trying to install Ubuntu Core 22 (and I tried 20 as well) on a Raspberry Pi 4, but am being faced with a super fast reset on the install configuration console. I have about 5 seconds after the ...
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dotnet Core 3 runtime snap not found in Ubuntu Core
I have a .Net Core 3 console app published for linux-x64.
I want to run it on Ubuntu Core 18.
I have installed the dotnet-runtime-30 Snap and aliased it like on this question.
When run the binary ...
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1
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Upgrading Ubuntu Core 16
We have about 100 Ubuntu Core 16 devices deployed at the moment. The most attractive thing about Core to our team is that updates are automatic and transactional.
It's unclear to me if there is or ...
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Ubuntu Core Pi Installation: x509 certificate has expired or is not yet valid
I am flashing Ubuntu core on a Raspberry PI 3. I followed the steps described in the website https://developer.ubuntu.com/core/get-started/raspberry-pi-2-3. When the configuration reaches the profile ...
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ubuntu core specifically for pi 3 B+
Please can someone build a working image for Raspberry pi 3 B+ ?
There are many answers dismissing this saying use the ubuntu-core-16-pi3.img.xz
This doesn't work for pi 3 B+ (the current version ...
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use systemd to mount sshfs
I am running Ubuntu Core on my Raspberry Pi and I would like to map a drive connected to a local server.
On other devices I use the sshfs to map this drive locally and it works.
However on Ubuntu ...
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Does Ubuntu Core support real-time?
Does Ubuntu Core's kernel support (hard) real-time?
If not, is it using a standard kernel, which can be patched with the CONFIG_PREEMPT_RT set?
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Ubuntu Core Proxy Settings at Boot Time
I installed 'Ubuntu Core 16' image on Raspberry Pi3. During the first boot, I am required to configure network and enter my Ubuntu SSO credentials. The problem is I am behind my work firewall and am ...
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How to mount NFS shares in Ubuntu Core?
I'm testing Ubuntu Core in a Raspberry Pi 3 and I would like to use NFS to connect to exports on my NAS.
In the "normal" servers that I have I just add a line in /etc/fstab for each mount, but in ...
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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 Core 20 Nano: Premission Denied
I have been trying to get nano to work, but I keep running into permission denied problems where vim (vi) works.
I have downloaded 2 versions of nano
sudo snap install nano-strict following this guide:...
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Find device Ubuntu Core 20 image to reinstall
I am using a device that is the Lenovo ThinkEdge SE30. It came with Ubuntu Core 20. I want to reinstall this image on the device.
When I check the properties of it I see the following:
The "...
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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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Using a third party scanner device with ubuntu core on a raspberry pi
I am developing an application that must allow 20-30 remote users from different offices to scan and submit specific documents to a server to be processed. I want to pair a panasonic kv-s1037x with a ...
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How can I use Python 3.8 in snaps?
As far as I know the only supported Python versions based on base: core18 are python2 and python3. However python3 means Python 3.6. How can I use Python 3.8 in snaps?
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Migrating from Raspbian to Ubuntu Core & Snaps
We are investigating moving an IoT device that currently runs on Raspbian on RaspberryPi over to Ubuntu Core and Snaps.
There are a number of devices already in the field in disparate locations and ...
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DNSMasq unknown interface wifi0 - failed to start
Introduction
I am trying to use my Ubuntu Core-RaspberryPi as a Wifi Access point. Therefore, I am using hostapd and dnsmasq. I followed this tutorial in order to setup everything.
I start them ...
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How to persist the routing table? Or disable eth0 as the default gateway?
I want a very simple task: to disable eth0 as the default gateway. (I have wlan0 configured for that purpose.) The command is trivial:
sudo route del default dev eth0
and it works, but some time ...
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I can't run mathpix-snipping-tool due to AppArmor policy
I installed mathpix using snap but when I tried to run it display this error message "An AppArmor policy prevents this sender from sending"
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Cant' install in Ubuntu core using snap
I get this message trying to install anything using snap:
~$ sudo snap install hello-world
error: too early for operation, device not yet seeded or device model not acknowledged
Can anyone please ...
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Ubuntu Core - Creating user failed
I have a https://login.ubuntu.com/ account (with the SSH Keys). But when I try to install ubuntu core I always get the error:
error: while creating user: cannot create user "my email".:...
No idea ...
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Ubuntu Core and third-party hardware and drivers
I'm doing tests to create a POS system in a very general stack (Ubuntu Core + Electron.js (snap) + mir-kiosk) and hardware (Raspberry PI 3 B+ + Display Touch + Printer Epson + Qr Code Scanner + Cam).
...
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Support for additional Filesystems on Ubuntu Core
I'm trying to mount an external Hard Drive formatted with exFAT on Ubuntu-core (Raspberry Pi edition with snap package manager) but there doesn't seem to be any way of installing the required packages ...
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Will Ubuntu Snappy Core work on the BeagleBone boards
I'm becoming increasingly interested in using Ubuntu Snappy Core, instead of Debian for the BeagleBone.
However, I can't seem to understand if this would work well on the BeagleBone development ...
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How can I enable TPM in Ubuntu Core 16?
I have a Dell Edge Gateway for IoT that runs Ubuntu Core 16.
How can I enable TPM on the device?
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Ubuntu Core 18 - RPI 3B+ Camera not detected
Did anybody tried to make the raspberry pi camera work with Ubuntu Core 18 ?
Is it supposed to work ?
Whatever I'm trying gives me an error saying the camera is not detected.
mmal: ...
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PermissionError: [Errno 13] Permission denied: on ubuntu core after running snap of web app
I have created a python based web server and made a snap of it and upload stable version on snap store. When i download and run that server on Ubuntu core machine, it throws the following error:
...
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Can I run a python package with snap on Ubuntu Core?
I wrote a python package on a Debian-machine that I am trying to port over to Ubuntu Core (it comes preloaded on the hardware I want to use). On Debian, I was able to simply pull my code from git and ...
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Setting up a DisplayLink display on Ubuntu Core running on a Pi3
I am trying to get a DisplayLink (USB monitor Lilliput UM70) running on a Pi3-B. Currently, it is running Ubuntu Core, but I can switch to something else if it makes more sense to run something like ...
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Ubuntu Core images for Artik 530 / 530s
Are there any plans on providing Ubuntu Core images for Artik 530 and Artik 530s?
The images listed in https://developer.ubuntu.com/core/get-started/artik-5-10 seem to be for Artik 520 and don't boot ...
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Booting Ubuntu Core without external network
I am unable to boot Ubuntu Core without having an external network.
It requires a network that assigns a IP address eventhough the network might not be connected to the internet.
What I have tried:
...
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Use Snappy Core without Ubuntu One account
Background
There has been a recent interest within the company for whom I work to improve security and remove all unnecessary parts of operating systems. This is a perfect use-case for the Ubuntu ...
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Dyndns with Ubuntu-Core
i want to connect my Nextcloud-Box with a DynDns Service, but my Router doesn't support ip updating for that service, so I have to do it with my raspberry, but I don't know how, since I can't install ...
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Unable to create simple console.log nodejs snap from github
Before I start creating a snap from my real application, I thought it be a good idea to start with a simple console.log app. However.....after two days I'm getting nowhere :(
I'm running Ubuntu Core (...
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How to use h264_mmal hardware decoder in RaspberryPi 3 in Snappy Ubuntu Core?
I have a program that makes use of the h264_mmal hardware accelerated decoder in Raspberry Pi 3. The same executable works fine on the same Raspberry Pi board if the OS is Ubuntu-Mate with gpu_men set ...
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How to compile Bluez btmgmt on Ubuntu Core?
I'm moving a script from Ubuntu 16.04 to Ubuntu Core 16. In the process I am also moving from Bluez 5.37 to the version provided with the Bluez snap, 5.44-2.
In the Bluez snap, the btmgmt tool is not ...
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Mount writable NTFS disk in Ubuntu Core
I have recently installed Ubuntu Core on a Raspberry Pi 3 using the official images provided by Canonical. I have a USB hard drive connected to the Raspberry Pi. This drive is formatted as NTFS. In ...
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How can I unpack an Ubuntu image?
We usually create/pack Ubuntu images with:
ubuntu-image -c beta --extra-snaps XXXXX --extra-snaps XXXX -o XXX.model
Now how can we unpack the generated Ubuntu image? Is there any tool to do that?
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Ubuntu Core on Raspberry Pi 3 SPI driver isn't available
I have Golang program for Raspberry Pi 3 that reads data using SPI.
I use this library to do that: https://github.com/kidoman/embd. And it works ok on Raspbian OS.
I tried to port it to Ubuntu Core.
...
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Can I access network-manager.nmcli from another snap?
I need to be able to access network-manager.nmcli command from my snap. I have not found a way to accomplish this with the current core or network-manager interfaces. Is the only solution that a slot ...
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ubuntu-core --- change snaps repository
I would like to run Ubuntu-Core to a board not supported officially by the distribution. In this way, I would like to change the snaps repository from the Ubuntu Store to a Private Store in order to ...
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Ubuntu core 16, Raspberry Pi 3, bluetooth vs. apparmor
I am having trouble seeing any Bluetooth controllers on my Rasberry Pi 3 running Core 16.
Installed snaps:
Name Version Rev Developer Notes
bluez 5.37-2 12 ...
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Python rpi.GPIO with Snapcraft / snap?
I'm having great trouble trying to build a snap for a simple python code for Rpi2.
Code I would like to put into a Snap is:
# External module imports
import RPi.GPIO as GPIO
import time
print("...
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How do you netboot or network install ubuntu core?
Target: Intel NUC. Guides only show how to install from USB key. If I need to install a lot of NUCs (which I do), need to have a procedure to PXE boot / install. Is there such a guide?
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OS upgrade from Ubuntu Core 15.04 to Ubuntu Core 16.04 support
Is OS upgrade from Ubuntu Core 15.04 to Ubuntu Core 16.04 supported? Will an 15.04 application snap work on 16.04 ubuntu core .
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