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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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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No Apt found after installing 64-bit Ubuntu core 18.04 on Raspberry Pi 3B+
I tried to install the 64 bits Ubuntu core onto my Raspberry Pi 3B+ this morning using Raspberry Pi Imager to burn the image to the microSD card. However, after booting and all the first time ...
CommunityBot
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Snap from .jar file
I am new to snapcraft. When I create a snap from a .jar file it shows Error: Unable to access jarfile. I searched a lot, but it didn’t work. Someone gives an example for creating a snapcraft.yaml file....
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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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Ubuntu Core container runtime
I would like to use Ubuntu Core with CSPs (Cloud Service Providers)
See Canonical's announcement:
https://ubuntu.com/blog/snappy-ubuntu-core-now-on-aws
As many organizations would be using it with ...
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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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Ubuntu Core adding a cifs share
I'm very new to Ubuntu Core and would like to mount a network share to my pi3. Before I would just edit etc/fstab using cifs but when I try to use cifs it gives me an error mount error: cifs ...
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Getting Memorry Error while running python script
The script i run is doing a concatenation from GLDAS Netcdf file from 2002 to 2017. but i got error like bellow.
File "/usr/local/lib/python3.6/dist-packages/xarray/core/indexing.py", line ...
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Core18: Configure /etc/issue and /etc/motd in custom image
I'd like to give users instructions to log into a web interface via /etc/issue when installing my image, however, the root directory is read only in Ubuntu Core. Is there a clever way this can be done ...
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Installing Ubuntu Core on KVM - problem whith SSH
I tried to install Ubuntu Core on KVM, but after installing Ubuntu Core I have no user that I can use to run commands.
And when I want to ssh it shows this:
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Dual boot error
so I installed Ubuntu 20.04 LTS and it dual boots with Windows 10 Pro on my laptop. Everything is fine until the point when I switch between the two systems by restarting the computer. The time ...
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Ubuntu Core on Raspberry Pi: Hide cursor on boot
I'm making a web kiosk using Ubuntu core on a Raspberry Pi, but I want to permanently hide the cursor. I tried using unclutter but was unable to install it with snap. For displaying the web page I ...
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Core 18: NetworkManager definitions do not support name globbbing
I'm trying to install core18 with kernel 5.4. Everything boots fine, but when I get into the initial configuration screen and try to set up my networking, I am presented with this error:
Network ...
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Ubuntu Core 18: [email protected] keeps timing out, delaying initial boot
I have a custom ARM device that I am trying to enable Core 18 on. [email protected] gets into a failure loop (whereupon it times out starting the service for 90 seconds, then tries to start ...
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Can't remove core18 snap
I am cleaning up my fresh Ubuntu 20.04 install and I can't seem to remove core18 snap.
$ snap list
Name Version Rev Tracking Publisher Notes
core18 20200427 1754 latest/stable ...
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How do you compare Ubuntu Server to Snappy Ubuntu Core?
How do you compare Ubuntu Server to Snappy Ubuntu Core for a single-board computer (SBC)? From what I've read I understand that the package managing system is different in Snappy. But, in general ...
CommunityBot
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What will happen if we put the ubuntu installed disk from lenovo into dell?
I installed ubuntu 20.04 on my samsung ssd which was in lenovo thinkpad yoga 4th gen.
Now I've changed my laptop and I remove ssd from Lenovo and pit it into dell latitude e5470 6th gen. Laptop.
Now,...
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Connect to Raspberry Pi 4 with Ubuntu Core 18 via serial cable
I am trying to install Ubuntu Core 18 on my Raspberry Pi 4 by following this guide. I don't have an extra keyboard or a USB-C connector to a screen. The guide says:
Attach the monitor and keyboard ...
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Ubuntu Core - Server + Nextcloud?
I have a question about Ubuntu Core. Somehow I managed to install Ubuntu Core 16 with Raspberry Pi 2 and install my own Nextcloud instance connected to the internet with a private Domain at home. I am ...
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where does snap store user data for apps that have been removed
I've uninstalled a snap app using "ubuntu softwares" and it removed all my relevant user data from /home/$USER/snap/appname as I've heard snap makes a snapshot of this data before removing it. Since ...
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How can I install Cinnamon on a minimal CLI installation?
I've come across similar, already answered questions on this website; however none of them deals with starting from the scratch - the Ubuntu core.
The normal release of 12.04 was not responding well ...
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Ubuntu Core SSH Through Ubuntu on Windows Requires Password
I successfully was able to SSH into my RPi running Ubuntu Core 18.04 installed on a desktop running Ubuntu 16.04. When I attempt to do the same thing on a machine using Ubuntu for Windows 10 after ...
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using ubuntu core on a raspberry pi as a systems integrator
Our company is planning to use embedded raspberry pi boards with Ubuntu core in a product integration. After going through initial setup of the raspberry pi unit, I'm very concerned that this setup ...
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Delete users on Ubuntu Core
I created a user on my Ubuntu Core distribution with ssh key and without password. But a few days later, Ubuntu ask me a password to connect (even if I didn't specify a password before). So to ...
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Livepatch enable not found?
machine is running Xenial, updated from Wily using do-dist-upgrade
Trying to set up live patching as an experiment before apply to my seedbox (a different machine)
Following these instructions
...
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Neither able to boot ubuntu 20.04, nor able to reinstall from live usb
I am new to linux. I just baught Dell Vostro 15 3580 and I had windows 10 installed on it. I installed ubuntu 20.04 from usb. But now whenever I start my laptop , in first attempt the Dell logo doesn'...
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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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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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Start another application and access ioio ports from a snap application with strict confinement
I built two applications using snapcraft(say snap1 and snap2) with confinement as devmode.
snap1 is a simple daemon application which starts snap2(not a daemon) and both work normally.
I’m ...
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18.04 Core: RaspberryPi 4 install requires SSH key to add to SSO
Noob here to the ssh world. I'm trying to install Ubuntu Core 18.04 LTS on a new Raspberry Pi 4; I flashed a copy of the image from raspberry pi's site.
Instructions say I need a SSH key , but I can'...
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Is Snappy Core available for Raspberry Pi 3/4?
If it's available, I can't seem to find it on the site. If it's not, can someone please link me to as much information as possible so that I can track progress on developments? Thanks.
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Ubuntu Core on Pi 4
I'm doing a project with a Pi for an IoT solution. I'd really like to go for the Pi4, but when will Core be released for Raspberry Pi 4?
I know about the unofficial build, but as this is a commercial ...
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How to factory reset Ubuntu Core 18
I am looking to use Ubuntu Core 18 as the OS for a Raspberry Pi IoT device.
Looking to have a factory reset function in case the thing does screwy.
What would be the best way to accomplish this?
Is ...
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How to print from a kiosk app on Ubuntu Core 18 to an attached usb printer?
I am new to Ubuntu Core and Snaps so please bare with me.
I believe I am missing a body of knowledge in understanding how snaps work and interact with one another. Have read up on snap Interfaces/...
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Ubuntu Core - Network Tools
I need to know which network tool i can use to grasp network informations, such as interface configured, open ports, TCP/UDP traffic in Ubuntu Core! I can't use netstat, ifconfig, lsof and so on .... ...
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Ubuntu Core and printer access
Testing Kiosk installations/configurations on Ubuntu Core.
Can a snap gain access to an attached printer on Ubuntu Core installation directly or via any means?
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jenkins slave agent on ubuntu core
My Jenkins Master is hosted on a non windows machine and I want to run my Jenkins slave/agent on Ubuntu core 16, but to run a slave/agent on Ubuntu core we need java to be installed in ubuntu core.
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How to install .NET Core 3 application on pure Ubuntu Core Snappy
I have a pure Ubuntu Core Snappy build running on a Raspberry Pi 3. My new requirement is a to add a C# application based on .NET Core 3.
I can't find an existing Snap supporting .NET Core 3 and a ...
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Is it possible to run Windows on Ubuntu Core?
I want to run diverse Windows Softwares on a PC which runs Ubuntu Core. After that I want to access the API of the Software
My thoughts to make this happen are:
Install Windows with the necessary ...
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No SSH access after accidentally denied ssh in ufw/iptables on Snappy Ubuntu Core
I´m running Snappy Ubuntu Core 18.04 on Intel Nuc, located on other location then where I live permanently.
Now I have accidentally denied SSH in iptables with use of ufw and SSH connection is not ...
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Ubuntu Core 18 on NUC6CAYH
I’m new on ubuntu core. I read the manual to install ubuntu core 18 on NUC
But in the manual, there is no certifeid for NUC6CAYH. Does that mean ubuntu core is not compatible with NUC6CAYH? or what ...
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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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Ubuntu Core 16 on <no ip address> (tty1) after reboot
I'm experimenting this error when Ubuntu Core automatically reboot after a couple of minutes after being activated for the first time, both with DHCP or Static IPv4 configuration DONE:
Ubuntu Core ...
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How to setup TPM in Dell Edge Gateway 3003 with Ubuntu Core 16?
Currently I am try to configure TPM in Dell Edge Gateway 3003 with Ubuntu Core 16. I have facing some problem gpg key Id generating time.
I try to generate key ID for using this command: gpg --no-...
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Ubuntu Core as Hyper-V virtual machine image
As Ubuntu Core can be installed on an Intel® NUC, is there any possbility to make it run as Hyper-V virtual machine to play around with it?
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Ubuntu Core 18 - How install snapcraft?
I'm looking for the right method to install snapcraft on Ubuntu Core 18.
I've tried it with the command:
sudo snap install snapcraft
but I get the error:
error: snap "snapcraft" requires classic ...
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18.04: Can't install docker in offline mode using snap
How do I install docker using snap without an internet connection.
I have installed Ubuntu using Multipass. My OS details:
root@docker:/home/ubuntu/microk8s# hostnamectl
Static hostname: docker
...
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Ubuntu Snappy OVA image cannot login
I'm trying the OVA image with VMWare workstation, I've made the user-data & meta-data:
user-data:
cat >> user-data << EOF
#cloud-config
snappy:
ssh_enabled: true
password: ...
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Where can Ubuntu snaps write data?
Applications packaged as snaps in Ubuntu are installed (mounted) under the /snap/$SNAPPNAME location. Everything under /snap is mounted as a read-only file system, thus applications cannot write to ...
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Ubuntu Can't turn on, only flashed the logo
I have problems with my Ubuntu for sometime, but everytime I managed to fix it through recovery mode, this time it is different, because it is stuck on the flashing logo with some fails that show up. ...
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