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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Mounting a drive Ubuntu Snappy

Seeing as the Snappy Ubuntu filesystem is so locked down I was wondering whether one can mount and access an external drive in Ubuntu Snappy?
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Console login on ubuntu-core-16.04-core-armhf.tar.gz

I'm running ubuntu-core-15.10-core-armhf.tar.gz on a arm evaluation board. Without any change the board boots up ad ask login on ttyPS0 (Started Serial Getty on ttyPS0.). If I try to use ...
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33 views

Applications can't connect the X server to launch

I can install and run CLI snap applications without issues, but when trying to run graphical apps it seems they can't connect to the X server, what am I doing wrong? keepassx: cannot connect to X ...
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2answers
60 views

How to get information on specific .snap

While beginning to experiment with Snappy Ubuntu Core I find it very difficult to gather information (this might be a general problem, there doesn't seem to be a lot of documentation on the platform ...
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4answers
143 views

Can't install snap after removing it

I'm pretty new to snaps, so I didn't know if it was a bug or if I was missing something. I installed a Snap via "sudo snap install ubuntu-clock-app" then I removed it via "sudo snap remove ...
8
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1answer
656 views

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 ...
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1answer
71 views

Why are there no new Ubuntu (core) Snappy releases?

I'm looking at the image channel guide for developers of Ubuntu Snappy Core. The only release available is 15.04. To me this seems odd; on the desktop and server side there has been a 15.10 and a ...
4
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1answer
35 views

How to package a browser plugin and a gui app in a snap package

My app is a gui app (qt) and a browser plugin. The plugin is used only for firefox. When the user clicks a button I want to open my gui-app. I would like to use a snap package to do this, but I can ...
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1answer
47 views

Where can I find Ubuntu 14.04 core images?

All the internet points me to here (including the release notes) but the link is broken. Anyone knows where to find it?
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26 views

How to flash Ubuntu-core Snappy on Artik-5 (v 0.5)?

Artik 5 already have an OS fedora 22. I followed the link to boot from SD card, and got success: https://developer.ubuntu.com/en/snappy/start/samsung-artik-iot-modules/ But I cannot flash Ubuntu-core ...
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1answer
215 views

How to Upgrade Ubuntu core snappy from 15.04 to 16.04

I have Ubuntu core running on a Raspberry Pi 2 stuck on Linux Porzellangardine 4.2.0-1024-raspi2 #31-Ubuntu SMP Tue Feb 9 11:44:25 UTC 2016 armv7l armv7l armv7l GNU/Linux No LSB modules are available. ...
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67 views

How to use dnsmasq on Ubuntu core snappy

On the snappy store I found dnsmasq which would be useful to access webservers running on lxd. When I installed it, it didin't do any change on the system. When I entered the /apps/dnsmasq-arm.howy ...
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0answers
31 views

Install Unity8 apps on Ubuntu 16.04

Is there a way to install Unity8 apps like terminal and file explorer as snappy packages on Ubuntu 16.04LTS? I am not looking for a PPA with precompiled binaries, but for the actual snappy packages. ...
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0answers
10 views

Is it possible to run and show the app on a device with snappy core?

The question is as simple as show the app writen for snappy/ubuntu core on a device running snappy/ubuntu core. Like the Raspberry Pi 2. Is this possible or am I better off running Ubuntu Mate on the ...
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1answer
406 views

Self hosted Snappy Store

Just like a self-hosted deb repository, is it possible to self-host a Snappy Store for private snapps? I have found that debs can be converted to snapps and that snapps can be submitted to the Ubuntu ...
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1answer
58 views

ubuntu 16.04 snappy core and opening pdf files

Is it possible to have all pdf files open in a snappy core project / application to prevent infection of the main machine OS? If so how? PDf files are increasingly being infected with some type of ...
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2answers
31 views

Creating own snap images

I see some similarities between Snap and Docker. I cant find on internet any guide how to create snap image, like image in Docker. How to create it? I want to build snap with some old libs and old app ...
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1answer
49 views

installed package with snap - command not available

I saw that tmux is available with snap find and apt-cache. I decided to install with snap. Howto use now tmux? I am normal desktop user, not cloud computing. # snap error: Please specify one ...
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2answers
498 views

What is the difference between a Snappy apps and Charms (and click)

I have heard that the system in use to package and install apps in sandboxes on ubuntu is the click package on the desktopNext and phone/tablet. If I have understood well, a snappy ubuntu core apps, ...
6
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1answer
57 views

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 ...
4
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1answer
289 views

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 ...
2
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1answer
68 views

Where are the Ubuntu Core Snappy images?

So the final release announcement has been made by Canonical but the Ubuntu Snappy Core images are nowhere to be found. Previously they could be found under 15.04 at releases.ubuntu.com now that is ...
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2answers
124 views

How to update all Snap packages

I know that I can update a snap package using sudo snap refresh <package> But there is a way to update all snaps, like sudo apt dist-upgrade
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1answer
53 views

RTLinux on Ubuntu 14.10 - AMD x64 machine

Can I install a full PREEMPT kernel on Ubuntu 14.10? I've found a lot of tutorials on the web, but none worked for me, 'cause I think they are out of date.
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1answer
118 views

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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2answers
206 views

How to run a command in 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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55 views

Snappy Ubuntu Core: snap installation doesn't copy files

I created a Docker base image running Snappy Ubuntu Core 15.04 amd64 using the instructions here: http://askubuntu.com/a/577248/495667 (you can get my image from Dockerhub: ...
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1answer
39 views

Will the new snap package make `Ubuntu Make` obsolete?

Ubuntu Make is a tool to install some latest versions of popular developers tools. At least more recent versions then the repository is offering. It is invaluable for e.g. Arduino IDE. If I ...
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1k views

What is Snapcraft for Ubuntu?

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 ...
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2answers
177 views

How to sideload my own/snapcraft example app?

Just trying snappy for the first time, wanting to develop an app but would obviously want to test it before pushing it to the app store. I've been through the snapcraft tutorial but once you've ...
4
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2answers
67 views

How to build multi-arch snaps

I've got a snap that I'd like to build for multiple architectures. Right now, in the snapcraft.yaml file I define a wrapper as the binary to execute, which sets up environment variables required for ...
13
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3answers
6k views

Why is Ubuntu moving to Snappy packages?

Why Ubuntu dumping .deb packages and moving to .snappy packages? (At least for now they are keeping .deb package for normal distributions). .deb is already the most popular packaging out there. ...
2
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1answer
262 views

OpenGL error in Snaps Ubuntu 16.04

Snap packages are failing to launch the UI complaining of libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast Unrecognized OpenGL version Unrecognized ...
2
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1answer
108 views

Will a sideloaded snap get upgraded to a newer version in the store?

I grabbed youtube-dl from the snappy-desktop-examples. I then built a snap with snapcraft and installed it: If/when youtube-dl is uploaded to the store, what happens, do I need to explicitly upgrade ...
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1answer
93 views

How to install a self-created snap on an Ubuntu Core machine?

I don't understand how the "Snappy workflow" is supposed to work and I feel like I am missing some very basic link. To simplify: Using snapcraft I have created a snap ...
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1answer
46 views

Docker on Ubuntu Core - docker.service not found

I am trying to get docker working on Ubuntu core using snappy to install. I am following this guide. My VM is behind a proxy but using http_proxy env settings and sudo -E I seem to be able to get ...
3
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1answer
99 views

Is Snappy Core available for Raspberry Pi 3?

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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1answer
64 views

Let's encrypt on Ubuntu Snappy

Just got my first Ubuntu Snappy running on a Raspberry Pi 2 and would very much like to enjoy Let's encrypt on it. I got it working on my other web server, but feel that this might not apply on Snappy ...
4
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1answer
31 views

Do the ubuntu core/snappy images have checksums/hashes?

It's not at all clear from the site. How are you supposed to reason about security if the base OS images aren't authenticated?
2
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1answer
41 views

How do I set up a cron job on Snappy?

If I run sudo crontab -e I can edit the crontab, but it's read-only so nothing gets saved.
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80 views

Disable serial console on Ubuntu Snappy

I would like to know is there any method to disable serial console on Snappy? I am using raspberry pi build. I need this because I have to use /dev/ttyAMA0 to communicate with hardware module.
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1answer
63 views

Migrate owncloud data+db to Ubuntu Snappy?

I'm about to get my hands on a Pioneer Raspberry Pi drive running Owncloud 9 on Ubuntu Snappy 16.04. I want to move my old owncloud instance to this new device, I just don't know how. Currently I'm ...
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43 views

How to stop my from Server crashing: mpm_prefork:error and coredumps (used gbd)

I have a WP website on an Amazon AWS Ubuntu server and the website keeps crashing, I think it happens when having a lot of traffic. This is what I get the most of in /var/log/syslog file: Apr 5 ...
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0answers
151 views

PHP Warning:fread(): SSL: Connection reset by peer in /var/www/html/wp-includes/class-wp-http-streams.php line 269

I have a WP website on an Amazon AWS Ubuntu server and the website keeps crashing, I think it happens when having a lot of traffic. This is the error I get as an output: ` [Mon Apr 04 ...
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1answer
90 views

Building LXC, LXD Image

Is it possible when using LXC,LXD images and containers that I can build my OWN image for a specific Ubuntu distro? then I use it as a container. thanks
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1answer
266 views

how to load Ubuntu Core “Snappy” as custom image on MaaS?

I'd like to upload on my MaaS server (ppa stable) the image of Ubuntu Core ("Snappy") to try it and provision new nodes using that custom image. I tested Snappy in a KVM environment and now I'd like ...
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0answers
45 views

Raspberry Pi 2 no boot with Snappy Ubuntu

I have a Raspberry Pi 2 B. I downloaded Snappy Ubuntu Core (ubuntu-15.04-snappy-armhf-raspi2.img.xz) from the official site, extracted the archive, and then wrote the image to an 8GB SDHC card using ...
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1answer
50 views

Ubuntu core 14.04 image

Is there anywhere Ubuntu Core 14.04 armhf image for BeagleBone Black to download. I found many tar.gz files but that are filesystems only. I am looking for img file. I have many problems with Snappy ...
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60 views

Oracle JDk 8 in Snapcraft App with Maven

I have a maven project which has source and target versions as JDK 1.8. And I wanted to build a snap app for the same project. As per the doc it looks like snapcraft "will pull a relocatable OpenJDK ...
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1answer
46 views

How to install snapcraft in a BBB running snappy 15.04?

When I try to install snapcraft is that occurs: (BeagleBoneBlack)ubuntu@localhost:~$ sudo snappy install snapcraft Installing snapcraft snapcraft failed to install: snappy package not found