this post was submitted on 23 Oct 2025
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Ubuntu 25.10 Unattended Upgrades Broken Due To Rust Coreutils Bug (www.phoronix.com)
submitted 1 week ago by cm0002@lemmy.zip to c/linux@programming.dev
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Besides the early fallout of switching to Rust Coreutils on Ubuntu 25.10 causing some breakage, a more pressing issue has been discovered: Ubuntu 25.10's unattended upgrades functionality for automatic security updates is currently broken due to a Rust Coreutils bug.

Earlier this month it was reported that the date -r command can report the wrong date on Ubuntu 25.10 due to a Rust Coreutils difference compared to GNU Coreutils. It was noted that this could cause issues for backup scripts and other software relying on the "date -r" output and behavior being the same as GNU Coreutils

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[–] kbal@fedia.io 11 points 1 week ago

date -r reports current date instead of date specified by reference file

Seems like it was not simply a "difference compared to GNU coreutils" — it was just giving completely the wrong date.

[–] thingsiplay@beehaw.org 11 points 1 week ago (1 children)

That's why its in 25.10 before LTS release. To test "early" in real world environments and find these issues. But from the Rust UUtils project side, I wonder how they did not catch this, if its producing different output.

[–] refalo@programming.dev 2 points 4 days ago* (last edited 4 days ago) (1 children)

I wonder how they did not catch this

Because the date command fails most of its unit tests and they decided to ship it anyway. I would also argue they don't have anywhere near enough tests in the first place.

[–] thingsiplay@beehaw.org 1 points 4 days ago

At least from test coverage point of view, I think they aim to have the same tests to pass as the original tools. Not all pass right now, so incompatibility is expected at some point, somewhere.

[–] woelkchen@lemmy.world 8 points 1 week ago (1 children)

Flatpak support broken, shovelware pile Snap Store pushed down users' throats, and now this.

Anyone who thinks that Ubuntu is the best choice for new Linux users is fundamentally wrong.

[–] refalo@programming.dev 1 points 4 days ago (1 children)

I try not to put much stock in black-and-white opinions because I think the answer is rarely that simple.

[–] woelkchen@lemmy.world -1 points 4 days ago

I try not to put much stock in black-and-white opinions because I think the answer is rarely that simple.

Sometimes facts are actually black-and-white and not shades of grey opinions. Also, brushing away simple truths by insisting they are extremely complex facets of a thing the common person does not need to get involved is a common disinformation tactic, used by the likes of climate change deniers etc. since decades.

[–] onlinepersona@programming.dev 0 points 1 week ago

Software has bugs more news at 11