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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How can I update all Snap packages?
I know that I can update a snap package using
sudo snap refresh <package>
But is there a way to update all snaps, like
sudo apt dist-upgrade
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Why is Ubuntu moving to Snap packages?
Why Ubuntu dumping .deb packages and moving to .snap packages?
At least for now they are keeping .deb package for normal distributions. .deb is already the most popular packaging format out there.
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what's the main difference between Docker and Snap?
In recent c't (sadly paywalled) there is an article about Snap and Flatpak.
This sounds very similar to Docker, lots of concepts are the same. Now my question what's the difference between Snap and ...
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What is Snappy Ubuntu Core?
Before everyone rushes to mark this as a duplicate, I have indeed read the other threads here and here, googled this, and visited the snappy homepage here searching to clear my confusion, and I couldn'...
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How to remove uninstalled 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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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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How to start a snap package
I have read some tutorials about Snapcraft and snappy and I am really excited about it.
I am using 16.04 and used snap find to find and install the ubuntu-calculator-app snap. But I don't know how to ...
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How to unmount and possibly delete old Ubuntu Core snap
When I type:
$ mount|grep snap
/var/lib/snapd/snaps/ubuntu-core_352.snap on /snap/ubuntu-core/352 type squashfs (ro,relatime)
/var/lib/snapd/snaps/ubuntu-core_423.snap on /snap/ubuntu-core/423 type ...
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Old Ubuntu core snap versions are filling up disk space
I am running Ubuntu 16.10 with snapd and the basic core snap installed since it was released.
After some time I observed that the /snap/core directory fills up with multiple older versions.
To remove ...
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How does Snappy relate to Nix and Guix?
I searched for a comparison but found non and am not quite well informed enough to do it myself right now.
All of them provide transactional updates, but different levels of containment.
Snappy ...
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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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How do I change the hostname on an Ubuntu Core system?
I just installed Ubuntu Core on my Raspberry Pi 3 and I would like to use a name other than localhost.localdomain.
How would I do this? Are there special considerations to take into account?
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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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What commands are needed to install Ubuntu Core?
Ubuntu Core's wiki page page contains the instructions to install Ubuntu Core on a target media:
Uncompress (do not unpack) rootfs
Format target media: at least one partition should be ext2, ...
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How do I repackage a .deb for Ubuntu Snappy?
I want to convert some Ubuntu software in .deb, specifically guake, to packages for Ubuntu Snappy*.
According to the documentation on the Ubuntu dev tools,
All metadata lives in meta/package....
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What is Snapcraft?
I've been trying snappy Ubuntu core on a Raspberry Pi 2 device, and I've heard I can use Snapcraft to do development on it. Now I hear that snaps are available on the desktop and server for Ubuntu 16....
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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 ...
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How to install Snappy Ubuntu Core without a keyboard
I bought a raspberry pi 3 to use as a server, and only after getting part way through the Ubuntu Core installation instructions did I realise that I actually don't own a USB keyboard... (we're a ...
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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 I debug snaps?
I've successfully built a snap that I can install on my system.
However, it crashes upon start, and I'm not quite sure where to start debugging that crash.
What are the different approaches to ...
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Connecting to new Wifi network
I am using Ubuntu Core on the Intel Joule. I went through all of the setup and everything was fine. I connected to a wifi network and am able to SSH into the Joule. However, we just set up a new wifi ...
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What is devmode for snaps?
I have heard about the ability to use snaps in developer mode.
What is this mode and what can I use it for?
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How do system services work in snaps
When creating a snap, and according to the syntax of the snapcraft.yaml file, the daemon keyword can be added to specify that the app will be run as a system service. As an example of such declaration:...
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Install applications in Ubuntu core
I installed Ubuntu Core and found that it used Snap for application installation. I want to install many applications on this system such as firefox, chrome, and many more. How can I do it? And is it ...
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What is meant by 'Transactional Updates'
What is meant by 'transactionally updated' system and how does such an update process different from a 'normally' updated system? What are its advantages/disadvantages?
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Can I run Snappy Ubuntu Core as a guest inside Docker?
I'm aware that Snappy Ubuntu can host Docker containers. My question is whether it can also be run inside a container, as a Docker guest.
The reason I'm asking is that I can't find any Snappy VM ...
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How can I iterate more quickly when creating a snap?
I am working on a snap of a bigger piece of software and building the snap, removing the old one, installing the new one just takes a very long time.
I would like to iterate over creating the snap ...
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How can I run a Snappy / ubuntu-core image with LXD
I would like to run Ubuntu Snappy in an LXC container.
There isn't an existing snappy image at the default https://images.linuxcontainers.org repo, but I was wondering if this is something others ...
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How to connect wifi network from raspberry pi 2 (snappy)
I've set up new raspberry pi 2 with snappy core.
And I couldn't find how to connect wifi network from snappy terminal.
My wifi dongle working correctly but there is no iwconfig in snappy core.
Wlist ...
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Where can I find snapd update or refresh logs? How does snapd inform the user about updates?
I am wondering where I can find update (refresh) logs for snap packages.
Normally, apt updates can be found in /var/log/apt/ but where does snapd write its logfiles?
Thanks for your answer
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How do I install Ubuntu Core 16 on the Beaglebone Black?
I am trying to install Ubuntu Core 16 on the Beaglebone black, which is supposedly supported.
I can't seem to find the documentation on how to utilise the beagleblack gadget snap.
I also don't see ...
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Disable Ubuntu Core Autoupdate
Ubuntu Core automatically updates installed snaps, for example 'core' snap, and to return to previous version I need to run the command
snap revert
But I want to control this myself and update ...
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GUI to Control fanspeed in Ubuntu?
is there any GUI Software to control fanspeeds in Ubuntu 18.04?
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Prevent automatic reboot after Ubuntu Core update on 16.xx
As documented here, if there is a core update, the computer will automatically update, then reboot.
I wish to have automatic updates on, but do not wish to have the machine automatically reboot. Is ...
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How do I create an additional user on Ubuntu Core?
I installed Ubuntu Core on my Raspberry Pi 3. After configuring it, I have now SSH access to the Pi using my Ubuntu account and a private key.
Now, I want to create an additional user, to simplify the ...
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ubuntu-core-launcher was automatically installed and is no longer required
Got this after updating all packages in Ubuntu 16.04.
All packages are up to date.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade....
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How to install snappy Ubuntu 15.04 Core images on a PC
Can you please help with some instructions on how to install Snappy Ubuntu core on an AMD64 PC?
I can find the image at this URL.
But I've not been successful installing booting it of an USB and ...
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Packages for Ubuntu Core Snappy
How can I find out what packagges are available for Ubuntu Core? I've googled everything, but I can't seem to find a website like packages.ubuntu.com for Core.
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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 ...
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Broken snap core module
All my snaps were deleted by mistake.
After that all my apps are not working any more. After investigation using snap list command, I found that all my snaps are broken
I fixed all snaps using
...
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How are Ubuntu snaps updated and upgraded?
I know I can upgrade an individual snap with the sudo snap refresh $SNAPNAME command, but I'm wondering whether there is a single command to upgrade all snaps at once.
Or are they upgraded ...
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How to use snaps via the CLI and GUI?
So, I have upgraded from my 15.10 to 16.04.
I have managed to install some snaps, but now I am wondering, how do I launch them? Typing their name in CLI did not help.
I tried:
ubuntu-core-launcher ...
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Is there a way to add repo to Snappy ubuntu core?
I am trying to install more stuff and I am seeing very little in snappy's install.
Is there a way to use apt-get or add repositories to install?
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Can't login to Ubuntu Core 16 using a second ssh key
I just installed Ubuntu Core 16 on a Raspberry Pi 2. Before install, I uploaded my ssh key for one of my computers to my Ubuntu SSO account. After installation I had no problems connecting to the Pi ...
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Add custom AppArmor rules to snap?
I'm trying to get an application working with snapd and have run into some issues regarding AppArmor permisions. It seems that in order to have my app be fully functional, it needs some custom ...
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Difference between Snappy and Click
I don't understand the difference between Snappy and Click. Both allow for image based system updates. Both use AppArmor to confine apps. Soon Click will run on the desktop, phone and tablet and ...
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snappy ubuntu core install basic packages
How to install basic package on snappy Ubuntu core, like nano git wget etc.
I tried the dpkg -i ***.deb ,but there are also need some dependent packages
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Snappy Ubuntu Core, no Docker or Owncloud in 'store'
I downloaded the image of Snappy Ubuntu Core for the Beaglebone Black, Alpha 2. When I now try to install Docker or Owncloud it cannot be found. Nor are the apps/framework available through the WebDM '...
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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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What is Ubuntu Core? [duplicate]
What exactly is Ubuntu Core, and how does it relate to Ubuntu itself (i.e. the main desktop and server distribution)?
I've read the answer to this question, which says it's just a minimal install of ...
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