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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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[–] thingsiplay@beehaw.org 11 points 1 week ago (2 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.