news
today's leftovers
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Kernel Space / File Systems / Virtualization
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Howard Oakley ☛ How does APFS handle encryption keys?
APFS volumes can be protected by encryption in several different ways, which can lead to confusion. While Apple provides a clear account of hardware encryption in FileVault, information about software encryption is harder to come by, and the focus of this article.
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Graphics Stack
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Tomeu Vizoso: Ethos-U NPU update 2: Executorch support
Over the last few months I have been working on Torx, an ExecuTorch backend in Mesa3D that delegates to the NPU drivers Mesa already contains. Initial Torx support has been merged already, with YOLOX support being currently under review.
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Instructionals/Technical
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Hackaday ☛ Vacuum Drying And Making Stuff Hot In A Vacuum
After previously exploring the impact of vapor pressure on the drying of desiccant and more, the conclusion was essentially that in order to drive moisture that’s not directly on a material’s surface out of it, you pretty much have to heat up said material to make the process not take forever. Of course, we’d still want to retain the vacuum while doing said heating, which raises the question of how you best heat something that is inside a vacuum.
Fortunately, this is a solved problem, with commentators to the previous article helpfully pointing to the existence of devices like vacuum ovens. Of course, you can either buy such a device and not worry your pretty little head about the finer details, or you can defy convention and build one yourself because you’re a rebel and really want to know how their internals work.
Thus in this article we’ll be taking a look at the finer details of generating thermal radiation and how to best heat up a sample inside a vacuum chamber without directly picking easy mode with microwaves.
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TecMint ☛ How to Fix apt and dnf Lock Errors After a Crashed Upgrade
That alone is annoying, but the bigger problem shows up when you try to run the upgrade again [...]
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