Canonical lifts lid on more Ubuntu Core Desktop details

3 years ago by Patch to c/linux

This new entrant in the immutable space is not a replacement for ordinary Ubuntu
Patch 50 points 3 years ago

I know this thread is likely to quickly descend into 50 variants of "ew, snap", but it's a good write up of what is really a pretty interesting novel approach to the immutable desktop world.

As the article says, it could well be the thing that actually justifies Canonical's dogged perseverance with snaps in the first place.

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avidamoeba 7 points 3 years ago

I'm pretty excited about it. It's a much cleaner solution to the problem immutable OSes are trying to solve. Dare I say it's better even than the Android model because it covers the whole stack with a single system.

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Chewy7324 4 points 3 years ago

I don't like Canonical pushing snaps as universal apps for all distros, because of issues like sandboxing not working on mainline kernels.

But it's pretty interesting to see how a fully snap based desktop OS could look like. It might have less limitations than rpm-ostree. Easy access to recent mesa and similar would be awesome.

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KISSmyOS 3 points 3 years ago
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woelkchen 73 points 3 years ago

But why is it an issue that Canonical controls a source of software for their own OS? Isn’t that the same with every distro’s repository?

No. You can add any other repository to apt, rpm, Flatpak, etc. You cannot do the same with Snap and that's by design. Canonical wants to be the sole gatekeeper of Linux software, hoping that all developers have no alternative but to publish software on the Snap store (ideally only there) which works best on Ubuntu.

Therefore: Fuck Snap.

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makingStuffForFun 23 points 3 years ago

Exactly. I feel they want to sell it to a big player, but no big player will touch it unless they can fully control it. Hence snap as part of that plan. Ubuntu is a hell no for me.

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caseyweederman 12 points 3 years ago

Forget selling it.
I think they're going to get everyone trapped in the ecosystem, and then they'll start charging for access to the source.

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KISSmyOS -3 points 3 years ago
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woelkchen 9 points 3 years ago

Smoke and mirrors. You cannot add a secondary Snap repository.

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flashgnash 5 points 3 years ago

From reading this that's not the whole story. Someone working at canonical successfully made a version of snap that could use alternative stores, but the default version does not allow it

And honestly at the point of installing that modified version you may as well just install a different package manager anyway

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woelkchen 32 points 3 years ago

This new entrant in the immutable space is not a replacement for ordinary Ubuntu

Not yet the replacement. It will be and I bet Canonical is targeting 26.04 LTS to do that. This is just the next step of trying to force all their users into Snap, just like when Flatpak was banned from being in by default of community-supported but official Ubuntu variants such as Xubuntu.

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Vincent 21 points 3 years ago

I'm very excited about how the Linux community generally seems to be moving towards various approaches to immutable systems - all of them having in common that system updates are going to be a lot less likely to break. The future is looking good!

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lemmyvore 9 points 3 years ago

As long as we don't end up with Linux systems designed like Android.

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wyzim 3 points 3 years ago

“like android/ios” is the ultimate goal of these systems lol

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Chewy7324 3 points 3 years ago

"like Android/ios"

is pretty vague. Do you mean locked down, with features like SafetyNet which locks people in to Google Services? Or do you mean locked down in the sense that installing packages doesn't just directly change the files in / ?

Systems like rpm-ostree still allow modifications to the OS, it just requires other steps. OpenSUSE MicroOS even allows for arbitrary modifications to the root fs through transactional-update (it even allows for dropping in to a transactional-update shell, so it's not necessary to prefix each command with transactional-update).

Especially OpenSUSE MicroOS feels more like OpenSUSE Tumbleweed, compared to Fedora rpm-ostree's limitations compared to Fedora dnf.

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sunbeam60 2 points 3 years ago

Yes except it’s all open source and if you’re unhappy you can fork. Good luck forking iOS.

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lemmyvore 2 points 3 years ago

Having distro maintainers decide a rigid partition structure for you would be a really bad approach, so I really hope not.

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echo64 20 points 3 years ago

As much as I have issues with the snap implementation, I really want to live in a world where my base os is solid and everything else is easily updatable. LTS, with the latest apps.

Snap and flatpak achieve this, and I want more of that. Just less... frustrating. And less not-invented-here like.

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woelkchen 38 points 3 years ago

And less not-invented-here like.

The only party playing that game is Canonical. Everybody else already agreed on Flatpak.

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avidamoeba 10 points 3 years ago

Flatpak cannot do what's discussed in the article. Snap can and it was started prior to Flatpak. If Flatpak was able to do what Snap can, you'd have half a point.

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woelkchen 3 points 3 years ago

Flatpak cannot do what’s discussed in the article.

Nobody claimed 100% feature overlap. For regular GUI applications both work relatively similar, to the point that Snap now happily uses technologies developed for Flatpak, such as Portals.

it was started prior to Flatpak.

That's irrelevant. One could just as well argue that Flatpak evolved from developments (OSTree, etc.) that are even older but that beside the point. Fact is that OSTree and Flatpak are vendor neutral and Snap isn't. Attempts at vendor lock-in caused Valve leave Ubuntu and later choose Flatpak on SteamOS.

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Bitrot 13 points 3 years ago

Snap has the ability to do the base system in a much more modular way and could be really cool for an immutable system. Forcing them on desktop users with their transitional deb packages and making it heavily integrated with only one repository really screwed it up.

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theshatterstone54 2 points 3 years ago

Also I'm not sure about slow startup times. Are those still an issue? If so, then I would be sure to considet Ubuntu dead and not only not recommend it but actively recommend switching away from it.

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zod000 1 point 3 years ago

Yes, they are still an issue. It is irritating enough that I have currently zero snaps and would rather build from source if snap is the only binary option.

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theshatterstone54 1 point 3 years ago

That's basically THE dealbreaker for snaps. Loop devices on lsblk? Most people don't care and wouldn't see it. Proprietary backend? Again, most regular people (Ubuntu's target audience) do not care. So the slow startup time is THE dealbreaker.

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jeffers00n 3 points 3 years ago

Fedora Silverblue sounds like it fits what you're looking for.

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autotldr 8 points 3 years ago

This is the best summary I could come up with:


Ordinary desktop and server Ubuntu aren't going anywhere, and the next release, numbered 24.04 and codenamed Noble Numbat as we mentioned last month, will be the default and come with all the usual editions and flavors.

Nor is this a whole new product: it is a graphical desktop edition of the existing Ubuntu Core distro, as we examined on its release in June last year, a couple of months after 22.04.

Ubuntu Core is Canonical's Internet of Things (IoT) distro, intended to be embedded on edge devices, such as digital signs and smart displays.

Most of the major Linux vendors have immutable offerings, and The Reg has looked at several over the years, including MicroOS, the basis of SUSE's next-gen enterprise OS ALP.

Former Canonical staffer Alan Pope demonstrated a Steam Deck running Ubuntu Core at the event, and his lengthy blog post about the experience contains some interesting details about how well the developer preview already works.

Compression of Flatpak apps is a key reason that Fedora now uses Btrfs, although it's worth noting that, as of yet, Snap doesn't include any form of deduplication between separate packages.


The original article contains 1,052 words, the summary contains 189 words. Saved 82%. I'm a bot and I'm open source!

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