The snapd team recently announced a new release of snapd supporting Ubuntu 14.04 LTS (Trusty) for servers and desktop (i386, amd64). The snapd service is what makes possible the installation and management of applications packaged as snaps.
In a nutshell, if you have systems using Ubuntu 14.04 LTS, welcome to a brand new world!
Installation on Ubuntu 14.04 is straightforward. Firstly, open a terminal, and type the following command to install snapd:
$ sudo apt install snapd
You can now download and run any application from the Ubuntu snap store, let’s start by installing a hello-world snap!
$ sudo snap install hello-world
The first time you install a snap, snapd also installs the “core” snap, which is the common platform for all other snaps. After the installation, you can use the “snap list” command to list installed snaps:
$ snap list Name Version Rev Developer Notes core 16-2 1441 canonical - hello-world 6.3 27 canonical -
Then, in order to run “hello-world”:
However, the first time you try to run a snap on 14.04, you might experience the error “The command cannot be found”. This is due to the fact that “/snap/bin” has not been added to the $PATH environment variable. To do so, a script called “apps-bin-path.sh” has been added to /etc/profile.d. It will automatically run after you reboot or re-login and add snaps launchers to your path. When this is done, snaps should launch as expected:
$ hello-world Hello World!
Hooray! The “hello-world” snap is running on your Ubuntu 14.04 machine. To further explore snaps, you can use the “snap find” command to search for more.
Without any arguments, it will show featured snaps:
Command output edited to fit the blog width.
$ snap find Name Version Developer Notes Summary docker 1.11.2-9 docker-inc - The docker app de... lxd 2.12 canonical - System container m... mongo32 3.2.7 niemeyer - MongoDB document-o... rocketchat-server 0.54.2 rocketchat - Group chat server...
It can also be used as a search engine for all stable snaps:
$ snap find 3d Name Version Developer Notes Summary blender-tpaw 2.78c tpaw - The free a... cloudcompare 2.8.1-1 cloudcompare - 3D point clo... mvs-texturing-mardy 20170215-1 mardy - MVS Textur... [...]
As you can see, the “snap” command is used to manage snaps the same way you use “apt” to manage debs. You can learn more about it by following this short tutorial (the first two steps are about installing snapd on various distros, you can skip them!). Of course, the built-in help is available through “snap –help”.
Krita : a free and open source digital painting application. Snaps allow Krita developers to release their software directly to users, at their own pace, regardless of OS release schedules.
$ sudo snap install krita
PostgreSQL 93, 94, 95 and 96: since snaps are confined, you can install multiple PostreSQL versions at the same time, which comes in handy for testing.
$ sudo snap install postgresql96
Nextcloud and Wekan: No need to present Nextcloud for file sharing, but maybe you don’t know about Wekan: a kanban boards server similar to Trello. By installing these snaps you can spin up instances of complex collaboration software in minutes.
$ sudo snap install nextcloud $ sudo snap install wekan-ondra
openHAB: turn any system into a home automation backend, in a minute.
$ sudo snap install openhab
Ubuntu Make: deploy and setup developer environments easily on Ubuntu (Android, Unity3D, Arduino, Swift, etc.). As this snap requires full access to your system, it’s only installable in “classic” mode, which more or less means “unconfined”.
$ sudo snap install --classic ubuntu-make
To get some insight on available or installed snaps, the “snap info” command will give you everything you need, such as commands provided by the snap:
$ snap info ubuntu-make name: ubuntu-make summary: "Setup your development environment on ubuntu easily" publisher: description: | Ubuntu Make provides a set of functionality to setup, maintain and personalize your developer environment easily. It will handle all dependencies, even those which aren't in Ubuntu itself, and install latest versions of the desired and recommended tools. . This is the latest master from ubuntu make, freshly built from https://github.com/ubuntu/ubuntu-make. It may contain even unreleased features! commands: - ubuntu-make.umake tracking: stable installed: master (x1) 13MB classic refreshed: 2017-03-29 10:47:09 +0200 CEST channels: stable: master (17) 17MB classic candidate: master (17) 17MB classic beta: master (17) 17MB classic edge: master (17) 17MB classic
To browse all the available stable snaps in the store, you can visit uappexplorer, use the “snap find” command or install the “snapweb” snap and visit https://localhost:4201 for a local store interface.
From home control to drones, robots and industrial systems, Ubuntu Core and Snaps provide robust security, app stores and reliable updates for all your IoT devices.
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