It’s one of those anachronisms that is deeply embedded in modern technology. From cloud operator servers to embedded controllers in appliances, there must be uncountable devices that think they are connected to a TTY. I will omit the many interesting details of the Linux terminal infrastructure here, as it could easily fill its own article. But most Linux users are at least peripherally aware that the kernel tends to identify both serial devices and terminals as TTYs, assigning them filesystem names in the form of /dev/tty*. Probably a lot of those people remember that this stands for teletype or perhaps teletypewriter, although in practice the term teleprinter is more common. ↫ J. B. Crawford I remember first using Linux in like 2000 or 2001, and running into the abbreviation tty, and not having a single clue what that meant since I came from a DOS and Windows background. Over time I gained a lot more understanding of the structure of modern UNIX-like systems, but it’s still great to read such a detailed history of the concept.

In this blog post, you will learn about some OpenBSD features that can be useful, but not widespread. They often have a niche usage, but it’s important to know they exist to prevent you from reinventing the wheel. ↫ Solène Rapenne Written by Solène Rapenne, who also happens to be an OpenBSD developer, so a great source for information like this.

I wrote different boot managers. Three boot managers are available as download. The Plop Boot Manager 5, PlopKexec and the new boot manager PBM6. The new boot manager is under development. ↫ Elmar Hanlhofer I had never heard of the three Plop boot managers, written by Elmar Hanlhofer, but they seem like quite the capable tools. First, Plop Boot Manager 5 is the most complete version, but it’s also quite outdated by now, with its last release stemming from 2013. That being said, it’s incredibly feature-packed, but since it lacks UEFI support, its use case seems more focused on legacy systems. PBM6, meanwhile, is the modern version with UEFI support, but it’s not complete and is under development, with regular releases. Finally, PlopKexec is exactly what the name implies – a boot manager that uses the Linux kernel. I’ve never encountered these before, but they seem quite interesting, and if it wasn’t for how much I do not like messing with bootloaders, I’d love to give these a go. Have any of you ever used it?

The first “Power11” patches were queued today into the PowerPC’s “next” Git branch ahead of the upcoming Linux 6.9 kernel cycle. The first of many IBM Power11 processor/platform enablement patches are beginning to flow out for the Linux kernel for enabling the next-generation Power processors. This shouldn’t be too surprising given that a few months ago IBM began posting “PowerPC Future” patches for the GCC compiler with speculating at the time it was for Power11 just as IBM previously called their “future” CPU target in GCC for Power10 prior to those processors officially debuting. ↫ Michael Larabel I really hope IBM learned from the POWER10 fiasco and will make sure POWER11 is properly and fully open again, because POWER9’s openness made it unique among the other options out there. Without it, there’s really no reason for an enthusiast community to developer around POWER11 as it did around POWER9, and that would be a shame. Again.

A customer was developing an automated test that required the system to suffer a blue screen crash. They configured their test systems to crash when the ScrollLock key is pressed twice while holding the Ctrl key, and they wrote a simple program that ran as administrator and injected the appropriate keystrokes. But no crash occurred. What did they do wrong? ↫ Raymond Chen Does anyone here not love a Raymond Chen mystery?

Android introduced support for Seamless Updates quite a long time ago at this point and, while it’s seen adoption from most, Samsung stubbornly refuses to move its devices to the A/B system. Android is now moving towards a future where A/B Seamless Updates are the only supported update mechanism, but that may not be enough to stop Samsung. ↫ Ben Schoon at 9To5Google The fact Samsung hasn’t embraced Seamless Updates yet is utterly baffling. It’s better in every single way, and there’s little to no downsides one can think of. I hope this little nudge gets them to finally get their act together.

Should web developers use pixels or ems/rems for accessible fonts? It’s an emotionally-charged question because there are a lot of conflicting opinions out there, and it can be overwhelming. Maybe you’ve heard that rems are better for accessibility. Or maybe you’ve heard that the problem is fixed and pixels are fine? The truth is, if you want to build the most-accessible product possible, you need to use both pixels and ems/rems. It’s not an either/or situation. There are circumstances where rems are more accessible, and other circumstances where pixels are more accessible. ↫ Joshua Comeau The linked article isn’t just an explanation of why, but also a tutorial.

On Friday, Bloomberg reported that Reddit has signed a contract allowing an unnamed AI company to train its models on the site’s content, according to people familiar with the matter. The move comes as the social media platform nears the introduction of its initial public offering (IPO), which could happen as soon as next month. Reddit initially revealed the deal, which is reported to be worth $60 million a year, earlier in 2024 to potential investors of an anticipated IPO, Bloomberg said. The Bloomberg source speculates that the contract could serve as a model for future agreements with other AI companies. ↫ Benj Edwards at Ars Technica Properly paying for the content you’re feeding into your “AI” model is a huge improvement over just taking it without users’ consent, but it does add yet another area of concern for users of all kinds of platforms. Whatever you write, create, or post might be fed into “AI” models without you ever realising it, and while the platform you use gets paid for that, you aren’t. In any event, OSNews is not selling your comments to an “AI” company, but with how old we are, there’s no doubt both your comments and our stories have already found their way into countless “AI” black holes.

This site contains reconstructed source code for Lander, David Braben’s epic game for the Acorn Archimedes, with every single line documented and (for the most part) explained. Lander was the very first game to be released for the ARM processor, and it is both a milestone and a masterpiece. My hope is that this site will be useful for those who want to learn more about Lander and what makes it tick. It is provided on an educational and non-profit basis, with the aim of helping people appreciate the second classic game from this legend of 3D coding (the first classic being Elite, of course). ↫ Mark Moxon An incredibly valuable resource.

I remember using DJGPP back in the 1990s before I had been exposed to Linux and feeling that it was a strange beast. Compared to the Microsoft C Compiler and Turbo C++, the tooling was bloated and alien to DOS, and the resulting binaries were huge. But DJGPP provided a complete development environment for free, which I got from a monthly magazine, and I could even look at its source code if I wished. You can’t imagine what a big deal that was at the time. But even if I could look under the cover, I never did. I never really understood why was DJGPP so strange, slow, and huge, or why it even existed. Until now. As I’m in the mood of looking back, I’ve spent the last couple of months figuring out what the foundations of this software were and how it actually worked. Part of this research has resulted in the previous two posts on DOS memory management. And part of this research is this article. Let’s take a look! ↫ Julio Merino Having access to tools such as this, including the source code, must’ve been a huge deal to a lot of people, even if ti was “strange, slow, and huge” as the author notes.

With the second beta of iOS 17.4, Apple disabled much of the functionality of Progressive Web Apps (PWAs) in the European Union. There was some speculation that it could be a temporary change or a bug related to some of the updates to the app ecosystem in Europe, but Apple has confirmed that PWAs were intentionally removed and won’t be returning. ↫ Juli Clover at MacRumors When users in the European Union install iOS 17.4, all functionality regarding progressive web apps will be removed from iOS. This means that when you pin a PWA on your iOS home screen, instead of it opening ‘like an application’, so without any browser chrome but with additional other odds and ends to make it feel more like a native application, it’ll just open inside the full browser instead. It’s typical Apple behaviour – vindictive and petty. Their stated reasoning – it was too hard and too much work to implement this for engines other than WebKit – is a bunch of utter nonsense, since Apple had no issues with developing like 600 new APIs and a whole bunch of new complex frameworks and administrative layers just to support their malicious DMA compliance to ensure they wouldn’t lose a single cent of protection money when a developer wants to distribute an application outside of the App Store. PWAs were the only way you could get an application-like experience on your iPhone from something not controlled, owned, and monetised by Apple, so it had to go to force developers to choose either of Apple’s new, maliciously DMA compliant monetised distribution options in the EU. Every time this company does anything, it’s just… Slimy, scummy, sleazy, and anti-user.

Recently, I began a new project – developing a MIPS emulator for Windows. Although Windows NT is commonly associated with x86-based architectures (and more recently ARM64), historically some lesser-known editions were released for other chipsets. MIPS, a RISC architecture, briefly featured on Windows NT 3.51/4.0 alongside the DEC Alpha and PowerPC before being discontinued with the release of Windows 2000. Having been predominantly x86-focused until now, I have no prior experience with MIPS – or RISC architectures in general. As with the Win16 emulator, my plan is not to achieve 100% compatibility with complex software. Instead, I aim to emulate enough core functionality to successfully run some of the built-in Windows games and utilities. I would like to achieve this in the most universal way possible, relying on minimal hardcoded “fixes” and hooks. ↫ x86matthew A very impressive project, and a fun one, to boot. Do note that the series of articles is split up, and you can move to the next one in the series at the bottom of each article.

Around 1977, Intel released a floppy disc controller (FDC) chip called the 8271. This controller isn’t particularly well known. It was mainly used in business computers and storage solutions, but its one breakthrough into the consumer space was with the BBC Micro, a UK-centric computer released in 1981. There are very few easily discovered details about this chip online, aside from the useful datasheet. This, combined with increasing observations of strange behavior, make the chip a bit of an enigma. My interest in the chip was piqued when I accidentally triggered a wild test mode that managed to corrupt one of my floppy discs even though the write protect tab was present! You can read about that here. Can we reverse engineer a detailed understanding of how it works? What wonders will we find? ↫ Chris Evans This thing is wild.

We’re on approach towards an alpha version of the new COSMIC desktop environment for Pop!_OS and other distros. Meanwhile, COSMIC testing has expanded to more users around the office. This month, we’re providing updates to the checklist we published in January on remaining tasks for releasing the alpha. ↫ System76’s official blog COSMIC is feeling very close now, and this update has a ton of new things and improvements in it, and COSMIC being new, it’s a lot of stuff that’s table stakes. There’s a screenshot utility now, you can tab various windows together, kind of like Haiku can, the design for the on-screen display notifications has been finalised, there’s new animations, and so much more. I’m very excited to try this out.