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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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'Refresh' Ubuntu Core ssh keys

I have already done the initial console-conf for a DragonBoard 410c using only one key in my Ubuntu SSO account. I would like to refresh those keys that are allowed on the board. I have tried just ...
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Ubuntu Core Raspberry Pi 3 Image not working on Raspberry Pi 3 B+ [duplicate]

Is there an Ubuntu Core image for the Ubuntu Core on Raspberry Pi 3 B+? When I use ubuntu-core-16-pi3.img.xz on my Raspberry Pi 3 B+, the red LED lights up solid, and I see the rainbow screen. I ...
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How do I switch back and forth between Ubuntu Classic and Core

To switch to Ubuntu Classic from core: sudo snap install classic --devmode --edge sudo classic But how do I switch back to core? I acknowledge that the purpose of Core is for IoT but Classic is ...
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Ubuntu Core image for IoT2020

I want to install ubuntu core on a IoT2020 device (by Siemens) [1]. I couldn't find any Ubuntu Core images or Gadget Snaps for this device, but after a quick web search it seems I can create my own ...
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SocketCAN device on Ubuntu Core

I'm currently trying to use a SocketCAN-enabled device (Kvaser USBcan Light 2xHS) on a Dell Edge Gateway 3002 running Ubuntu Core 16. This CAN interface has been tested on Ubuntu Desktop successfully....
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Power on Bluetooth in Ubuntu Core when boot

I want to "power on" the bluetooth interface when the Ubuntu Core boot up. I tried the https://wiki.archlinux.org/index.php/bluetooth "auto power-on after boot" tutorial but it not worked. What I ...
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29 views

Copy Ubuntu Server 18.04 to other Ubuntu Machine

Am having Ubuntu Server 18.04 core with LAMP and other supporting packages installed. I want to migrate all of its content files and installed packages to a other machine with the same Ubuntu Server ...
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Dell Gateway 5000 with Ubuntu Core 16 doesn't identify sim card inserted in the slot

I have Dell Gateway 5000 with Ubuntu Core 16 installed in it. I am inserting a sim card in the slot, but the Gateway doesn't identify it. The led indicating the mobile network is off. The sim card is ...
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Can i install ubuntu 18.04 on this specs Dell 3521 core i5 ram 8 hd 1 terabyte amd 2 gb ?! [duplicate]

I need to install ubuntu on my dell 3521 core i5 Ram 8 gb Hd 1 terabyte Vga amd 2 gb Windows 7 ultimate Can it working fine or should i get an older version
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Is it possible to make a graphical snap for Ubuntu Snappy on the RPi?

I would like to know how to make a snap with a GUI for the raspberry pi running Ubuntu Snappy Core. I have unfortunately not been able to find any good resources on this, if anyone knows any, it would ...
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Installing a web server on Ubuntu Snappy Core

I acknowledge that this question may have been asked before, although I am asking it again because no good answers were given and it has been a while since it has had any activity (about 2 years). I ...
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Can't make Dell Gateway 5000 with Ubuntu Core 16 as Access Point.

I am working on Dell Edge Gateway 5000 series and have installed Ubuntu Core 16. I am trying to make it as Access Point. I have inserted a sim card in it and have created a connection with the command ...
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123 views

a start job is running for wait unti snapd is fully seeded - 18.04 install

I am attempting to install 18.04 from a USB stick. The system sits timing with the following message:- "A start job is running for wait until snapd is fully seeded xxxmins / no limit" I am no Linux ...
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Unable to install ufw as a snap on Ubuntu Core 14

I unpacked the Ubuntu Core 16 AMD64 image in a virtual machine,1 completed the setup menus, then immediately tried to install ufw as a snap. After a couple of minutes, I get an error: root@localhost:...
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154 views

Remove old 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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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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1answer
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Does snappy core work on raspberry pi 3B+

I have got a raspberry pi 3B running canonical's snappy core on it. The new raspberry pi 3B+ is out. Before buying it(would like to use one of it's new features) I would like to know if anyone already ...
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1answer
167 views

Set static IP on Ubuntu Core

I'm new to Ubuntu Core. On first login I selected the option: Will use DHCP for IPv4 Now I'd like to change my machine to use a static IP to be easier to log in remotely. I ran sudo console-conf ...
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1answer
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Why is my Ubuntu Core 16 in an endless config loop?

Ubuntu CORE 16 on Orange Pi Zero (armf). Downloaded and registered. Found that on fresh image, with no snaps installed, eventually the device drops its IP address and cannot be sshed into. That ...
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1answer
781 views

How to install Resynthesizer Plugin in GIMP snap?

I've installed a Gimp 2.10.6 snap on the Ubuntu 18.04 from the Ubuntu Store and I want to add the Resynthesizer plugin to it. What I did is: Downloaded the zip file from this GitHub repo: https://...
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Installing Ubuntu core or desktop on Intel Edison

Ubuntu for IOT mentions several compatible boards but not Intel Edison. Can Ubuntu for IOT be installed on Intel Edison?
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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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Why would I not not be able to connect to Core device post update?

I built an Orange Pi Zero with Ubuntu Core. I snapped in Mosquitto and Node-Red. Node-Red does not come as a service so I started Node-Red with: sudo snap run node-red I then created a small ...
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1answer
252 views

Can't Install Ubuntu 18.04.1 - issues with snapd and snappy daemons

Installing Ubuntu 18.04.1 Desktop on a a Lenovo M58p Intel C2D machine. Boot process stalls with the following console messages (repeating, timing out, and then re-attempting): "Start job is running ...
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1answer
33 views

Why the ssh error trying to log into orange pi running ubuntu core?

After configuring an Orange Pi Zero with Ubuntu Core it fails on attempts to ssh into it with the error in image. I am using TerraTerm and pointed the private key file to the one created using for ...
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Looking for a method to have two users on Classic confinement devmode (Ubuntu Core)

I'm on a DragonBoard distro of Ubuntu-Core. I want to have a second member of my team (in addition to me) be able to collaborate on development of our project in Ubuntu Core, via Classic mode. Is ...
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Why classic mode in Ubuntu Core takes so long with no internet

When my device has internet access I go into classic mode (sudo classic) and the command is executed pretty quick, but when the device is offline, it takes around 20 seconds to go into classic mode. ...
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Unable to configure proxy settings in /etc/environment - file is read-only

I'm trying to get Ubuntu Core 16 to use a proxy to talk to the snap store. When attempting to edit /etc/environment, I'm unable to save my change, due to it being read-only. (The file permissions ...
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1answer
14 views

strace on Ubuntu Core

How do I get strace running on Ubuntu Core? I installed the strace-static snap (there is no strace snap), but it fails when attempting to run it: # strace-static ls /snap/strace-static/18/bin/strace:...
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60 views

Installation of c compiler on Ubuntu Linux [duplicate]

How do I install GCC 8 on Ubuntu LTS 16.04.3?
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73 views

Can't ssh to Ubuntu Core on Raspberry Pi 3 with public IP

When I try to ssh to my Ubuntu Core Raspberry Pi 3 using its private IP (i.e. 10.x.x.x) it is able to connect, but when I try remotely from its public IP or hostname, it says ssh: connect to host &...
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Ubuntu-core image for ONIE

I would like to install ubuntu core via ONIE on my s6000 switches. Wondering if there is someone who can chat with me about how we can construct/deconstruct an ubuntu core image to work with ONIE ...
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1answer
28 views

Not able to create snap with executable

I want to create a snap with snapcraft. I have no source code, just one ready to use executable (application/x-executable) and one shared library (.so). The user later on should simply type in "test1" ...
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Ubuntu core: snap core repeatedly mount and umount

When I boot up Ubuntu core OS on my board with arm64, snap core repeatedly mount and umount like below, I have no idea why it happens. Mounting Mount unit for core, revision 4915... [ OK ] ...
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105 views

Segmentation fault (core dumped)

When i tries to open Spider(python IDE), Every time i got this error Segmentation fault (core dumped) ,What should i do.I tried different methods but could not resolve. Should I reinstall it or what.
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installing ubuntu core on kvm problem whith ssh

I tried to install ubuntu core on kvm but after installation in ubuntu core i have no user that i can insert commands enter image description here and when i want to ssh it shows this. enter image ...
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Snapcraft - python assign local whl file to a part

I am working on a snap python application, I want to link a local whl package to the build packages in a part. This whl package has modules that I will run the app command. How can I add a whl ...
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2answers
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How to shutdown Ubuntu from chroot?

I installed an infrared receiver sensor and I plan to shutdown my Raspberry running Ubuntu Core using a remote control. The point is: Python and libraries like Rpi.GPIO are installed in an environment ...
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23 views

Ubuntu Core zfs tools to mount array?

I have installed Ubuntu Core bare metal. My intention is to host dockers on it. However I need to mount an existing ZFS array for data storage. Is there a way to get the ZFS tools in an Ubuntu Core ...
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1answer
113 views

Can I install Python 2.7 and pip on snappy Ubuntu Core 16.04?

This does not seems to answer the question: What is the recommended way to install pip on Snappy Ubuntu Core? It appears that Ubuntu Core 16.04 only has Python 3. How do I get Python 2 if there is no ...
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Ubuntu boot process hangs on starting snappy daemon [duplicate]

TL;DR: Ubuntu boot hangs on starting the snappy daemon, takes roughly 5min to boot, reinstall doesn't fix, issue is caused by an update. Backstory: I installed the vanilla-gnome-session and after ...
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0answers
15 views

Path in Ubuntu Core

I have a basic question: I'm running Ubuntu Core in a Raspberry, but I am unsure about the directory structure. In my understanding, Ubuntu Core uses environments (snaps) where programs are installed....
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1answer
98 views

How do I enter Setup and get into Ubuntu Core command line in a Raspberry Pi 3?

I successfully installed the Ubuntu Core in a Raspberry Pi 3. The system starts, I completed setup and now when I start the system, states firstly "No ethernet found", load all libraries and it goes ...
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Help me to decrease boot time for Ubuntu Core + LXDE-Openbox

I have this result of the commnad systemd-analyze critical-chain systemd-analyze critical-chain The time after the unit is active or started is printed after the "@" character. The time the unit ...
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0answers
53 views

Ubuntu core in Raspberry Pi3 without remote control mode ,Is it possible?

Can I release an application or snap in a Raspberry Pi3 with Ubuntu core and work with that through a monitor and keyboard directly without remote mode? is It possible? How can I do it?. In my low ...
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0answers
37 views

Automate/Configure Ubuntu Core First Boot Experience

I'm looking for any guidance on automating the first-boot process for a new Ubuntu Core image. I'm specifically looking for a way to automate the Ubuntu One login and initial network setup so ...
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1answer
99 views

How-to-install, lubuntu-core_0.94_amd64.deb

I want to make a small as possible Lubuntu. I have downloaded Desktop, Alt and Mini. What I have no idea about is, Core.... lubuntu-core_0.94_amd64.deb I don't know how to do a fresh install with a ....
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1answer
134 views

Ubuntu Core “Cannot open display:” [duplicate]

so I got Ubuntu Core up and running on a Raspi 3. Now I tried out a few snaps, but when it comes to snaps with a GUI I face a problem (I am connected via ssh). So I run gimp and it gives me the ...
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1answer
134 views

How do you manage journald log history on ubuntu core 16

I need to change the default configuration of journald on Ubuntu Core 16 so that I can see docker daemon logs from previous boots. However, /etc/systemd/journald.conf is on a read-only file system, ...
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1answer
47 views

Battery draining rapidly

I've recently switched From windows 10 to Linux. I am using Ubuntu 18 as primary OS on my Dell Inspiron 3542, battery drains so rapidly. I've used tlp and other battery optimization features. What ...