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Blog posts tagged "Snaps"

A technical introduction to the Snap Store Proxy

In the world of IoT, it is crucial to be fully in control of your devices. Over-the-air (OTA) updates are essential for a distributed set of devices. This must be carefully managed to ensure that an update is not pushed at a time where the device is active and operation should not be interrupted. To

How’s my snap faring on different distributions?

The life of an application can roughly be divided into two: everything that happens before it goes live – building, packaging, publication – and then, everything that happens after that milestone. Traditionally, on Linux, developers didn’t always have an easy way of deriving useful numbers on how their software was doing across the distro

Hey snap, where’s my data?

Snaps are self-contained applications, isolated from the underlying operating systems by several layers of confinement. This mechanism introduces security benefits, but it may also create confusion for people who are less familiar with how snaps work and behave, especially when it comes to filesystem access. Today, we’d like to clarify so

How to troubleshoot application issues and crashes with snapd gdbserver

Sometimes, applications may not run well, or they could even crash. When such issues occur, it is useful to have a consistent, reproducible method of triggering the problem, so that developers can have a reliable way and sufficient data to troubleshoot the issues and produce a fix. In the software world, the GNU Debugger (gdb)

The snap developer’s guide on how to migrate to new bases

A couple of weeks ago, we published an article about Ubuntu 16.04 entering Extended Security Maintenance (ESM), and the implications of this change for snap publishers. We talked about the different options available to developers and publishers who still may rely on the older bases in their build process – free Ubuntu Advantage (UA) toke

Better snap metadata handling coming your way soon

Open the Snap Store, click on any application you like – you will now see a page full of useful tidbits – screenshots and videos, application description, last update, license, contact data, and other information. The data shown here is often the first impression the user gets about the software, and can be a deciding

Should you ever reinstall your Linux box? If so, how?

Broadly speaking, the Linux community can be divided into two camps – those who upgrade their operating systems in-vivo, whenever there is an option to do so in their distro of choice, and those who install from scratch. As it happens, the former group also tends to rarely reinstall their system when problems occur, while

How to make your first snap

Snaps are a way to package your software so it is easy to install on Linux. If you’re a snap developer already or you’re a part of the Linux community, and you care about how software is deployed, and you’re well versed in how software is packaged, and are tuned into the discussions around packaging

What’s in a snap?

Snaps are several things, all at once. They are confined, standalone Linux applications that bundle all their necessary dependencies, which means they do not need to rely on the underlying system, and can run independently of it. Snaps are also packaged as compressed Squashfs filesystems, using the .snap extension. For most users, they ar

How does Ubuntu 16.04 entering Extended Security Maintenance (ESM) affect snap publishers?

At the end of April, Ubuntu 16.04 LTS will reach the end of its five years of mainstream support and enter the Extended Security Maintenance (ESM) phase. If you’re a snap developer, and you have built or based your snaps on Ubuntu 16.04 (Xenial) packages and libraries, you may want to know how this milestone

What is virtualisation? The basics

Virtualisation plays a huge role in almost all of today’s fastest-growing software-based industries. It is the foundation for most cloud computing, the go-to methodology for cross-platform development, and has made its way all the way to ‘the edge’; the eponymous IoT. This article is the first in a series where we explain what virtualisat

DFI and Canonical offer risk-free system updates and reduced software lead times for the IoT ecosystem

Feb. 25, 2021 – DFI and Canonical signed the Ubuntu IoT Hardware Certification Partner Program. DFI is the world’s first industrial computer manufacturer to join the program aimed at offering Ubuntu-certified IoT hardware ready for the over-the-air software update. The online update mechanism of and the authorized DFI online application s

Want to publish a snap? Here’s a list of dos and don’ts

Technology is a medium that enables us to achieve things in life, ideally in a pleasant way. In the software world, operating systems, programming languages and application frameworks are the tools of the trade. But you need the right tool for the right job. If you’re thinking about writing or porting your code to snaps,

Snaps and themes – on the path to seamless desktop integration

Alongside performance, theming is one of the primary concerns for desktop snap users. People expect applications bundled inside snaps to look and behave just like their counterparts shipped and packaged in the traditional way in their Linux distributions, and any discrepancy in this space can lead to a degraded user experience. Over the y

Snaps: How we got here

I’m celebrating nine years at Canonical, and coming up on 15 years since I started contributing to Ubuntu in the community. It’s been quite the ride, helping build, support and advocate for the most popular Linux desktop, and most used Linux distribution in the cloud. Over those years, we’ve strived to make it easy for

Popular snaps per distro (2020 edition)

Back in mid-2019, we wrote a blog post detailing and comparing the most popular snaps across multiple distributions – Arch Linux, CentOS, Debian, Fedora, Manjaro, and Ubuntu. This article gave us a fascinating insight into the usage patterns across these different systems and their audiences. We wanted to see if and how the situation has