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Rebooting A Retro PDP-11 Workstation - and Its Classic 'Venix' UNIX
by Peter Reutemann 24 Mar '25

24 Mar '25

'This week the "Old Vintage Computing Research" blog published a 21,000-word exploration of the DEC PDP-11, the 16-bit minicomputer sold by Digital Equipment Corporation. Slashdot reader AndrewZX calls the blog post "an excellent deep dive" into the machine's history and capabilities "and the classic Venix UNIX that it ran." The blogger still owns a working 1984 DEC Professional 380, "a tank of a machine, a reasonably powerful workstation, and the most practical PDP-adjacent thing you can actually slap on a (large) desk." But more importantly, "It runs PRO/VENIX, the only official DEC Unix option for the Pros." In that specific market it was almost certainly the earliest such licensed Unix (in 1983) and primarily competed against XENIX, Microsoft's dominant "small Unix," which first emerged for XT-class systems as SCO XENIX in 1984. You'd wonder how rogue processes could be prevented from stomping on each other in such systems when neither the Intel 8086/8088 nor the IBM PC nor the PC/XT had a memory management unit, and the answer was not to try and just hope for the best. It was for this reason that IBM's own Unix variant PC/IX, developed by Interactive Systems Corporation under contract as their intended AT&T killer, was multitasking but single-user since in such an architecture there could be no meaningful security guarantees... One of Venix's interesting little idiosyncrasies, seen in all three Pro versions, was the SUPER> prompt when you've logged on as root (there is also a MAINT> prompt when you're single-user... Although Bill Gates had been their biggest nemesis early on, most of the little Unices that flourished in the 1980s and early 90s met their collective demise at the hands of another man: Linus Torvalds. The proliferation of free Unix alternatives like Linux on commodity PC hardware caused the bottom to fall out of the commercial Unix market. The blogger even found a 1989 log for the computer's one and only guest login session — which seems to consist entirely of someone named tom trying to exit vi. But the most touching part of the article comes when the author discovers a file named /thankyou that they're certain didn't come with the original Venix. It's an ASCII drawing of a smiling face, under the words "THANK YOU FOR RESCUING ME". "It's among the last files created on the system before it came into my possession..." It's all a fun look back to a time when advances in semiconductor density meant microcomputers could do nearly as much as the more expensive minicomputers (while taking up less space) — leaving corporations pondering the new world that was coming: As far back as 1974, an internal skunkworks unit had presented management with two small systems prototypes described as a PDP-8 in a VT50 terminal and a portable PDP-11 chassis. Engineers were intrigued but sales staff felt these smaller versions would cut into their traditional product lines, and [DEC president Ken] Olsen duly cancelled the project, famously observing no one would want a computer in their home.' -- source: https://tech.slashdot.org/story/25/03/22/1927247 Cheers, Peter

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Raspberry Pi Announces New Tool for Customized Software Images
by Peter Reutemann 24 Mar '25

24 Mar '25

'"For developers and organisations that require a custom software image, a flexible and transparent build system is essential," according to an announcement Friday at Raspberry Pi.com. "[T]o support these customers, we have created rpi-image-gen, a powerful new tool designed to put you in complete control of your Raspberry Pi images." If you're building an embedded system or an industrial controller, you'll need complete control over the software resident on the device, and home users may wish to build their own OS and have it pre-configured exactly the way they want... rpi-image-gen is an alternative to pi-gen, which is the tool we use to create and deploy the Raspberry Pi OS distribution. rpi-image-gen... offers a very granular level of control over file system construction and software image creation... [B]eing able to help reduce software build time, provide guaranteed ownership of support, and reuse standard methodologies to ensure authenticity of software were all of paramount importance, and among the reasons why we created a new home-grown build tool for Raspberry Pi devices... There is a small number of examples in the tree which demonstrate different use cases of rpi-image-gen [including the lightweight image slim and webkiosk for booting into browser kiosk mode]. All create bootable disk images and serve to illustrate how one might use rpi-image-gen to create a bespoke image for a particular purpose. The number of examples will grow over time and we welcome suggestions for new ones... Visit the rpi-image-gen GitHub repository to get started. There, you'll find documentation and examples to guide you through creating custom Raspberry Pi images. Some technical details from the announcement. - "Similar to pi-gen, rpi-image-gen leverages the power, reliability, and trust of installing a Debian Linux system for the device. However, unlike pi-gen, rpi-image-gen introduces some new concepts [profiles, image layouts, and config] which serve to dictate the build footprint and installation." - The tool also lets you exclude from your package "things that would otherwise be installed as part of the profile." - The tool's GitHub repository notes that it also allows you output your software bill of materials (SBOM) "to list the exact set of packages that were used to create the image." And it can even generate a list of CVEs identified from the SBOM to "give consumers of your image confidence that your image does not contain any known vulnerabilities."' -- source: https://build.slashdot.org/story/25/03/23/0012253 Cheers, Peter

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GIMP 3.0 Released
by Peter Reutemann 18 Mar '25

18 Mar '25

'GIMP 3.0 has been released after over a decade of development. Highlights include a refined GTK3 interface with scroll wheel tab navigation, a new splash screen, improved HiDPI icon support, enhanced color management, a stable public API, and support for more file formats. 9to5Linux reports: GIMP 3.0 also brings improvements to non-destructive editing by introducing an optional "Merge Filters" checkbox at the bottom of NDE filters that merges down the filter immediately after it's committed, along with non-destructive filters on layer groups and the implementation of storing version of filters in GIMP's XCF project files. Among other noteworthy changes, the GEGL and babl components have been updated with new features and many improvements, such as Inner Glow, Bevel, and GEGL Styles filters, some plugins saw small enhancements, and it's now possible to export images with different settings while leaving the original image unchanged. There's also a new PDB call that allows Script-Fu writers to use labels to specify filter properties, a brand new named-argument syntax, support for loading 16-bits-per-channel LAB PSD files, support for loading DDS images with BC7 support, early-binding CMYK support, and support for PSB and JPEG-XL image formats. On top of that, GIMP 3.0 introduces new auto-expanding layer boundary and snapping options, an updated search pop-up to show the menu path for all entries while making individual filters searchable, a revamped alignment tool, and support for "layer sets," replacing the older concept of linked layers. ' -- source: https://tech.slashdot.org/story/25/03/17/1948219 Cheers, Peter

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Wine Releases Framework Mono 6.14
by Peter Reutemann 11 Mar '25

11 Mar '25

'Today marks the release of Framework Mono 6.14, the first major Mono release in five years and the first under WineHQ's stewardship. This update includes long-awaited improvements such as native macOS ARM64 support, enhancements to System.Windows.Forms for X11, better COM interface support, and various stability fixes. Phoronix reports: In addition to the native macOS ARM64 support and System.Windows.Forms improvements for X11, some of the other Mono 6.14 improvements carried out over the past half-decade include improved support for generated COM interfaces, many warning fixes, addressing common cases where processes would hang on exit, and more. As for the "Framework Mono" name rather than just Mono, the release announcement explains: "Framework Mono is the project previously hosted at https://github.com/mono/mono, which was then simply called Mono. I have made this change to distinguish it from 'monovm' and 'Wine Mono', which are different projects. Framework Mono is a cross-platform runtime compatible with .NET Framework." ' -- source: https://tech.slashdot.org/story/25/03/10/2055237 Cheers, Peter

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Emacs 30.1 Released: New Features, Installation, and Usage Guide
by Peter Reutemann 07 Mar '25

07 Mar '25

'GNU Emacs is one of the oldest text editors. It was created by Richard Stallman, the founder of the Free Software movement and GNU project. He is also the creator of the GNU C compiler and Debugger. Emacs is a versatile and highly configurable text editor with hundreds of keybindings and commands. With numerous configuration settings, it’s arguably one of the text editors with a steep learning curve, so most developers, system administrators, and regular Linux users prefer Nano or Vim editors. Despite the complexity of learning the ins and outs of Emacs, it’s not entirely hostile to beginners, and with the right learning strategy and guidance, you’ll be comfortable in no time. In this guide, we will hold your hand and walk you through the Emacs editor. By the end of this guide, you will have a decent amount of knowledge to get started with using the Emacs editor.' -- source: https://www.linuxtoday.com/blog/emacs-30-1-released-new-features-installati… Cheers, Peter

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Phrase Of The Week: “Vegetative Electron Microscopy”
by Lawrence D'Oliveiro 05 Mar '25

05 Mar '25

Amusing summary <https://www.computerworld.com/article/3836728/you-thought-genai-hallucinati…> of research into how bad AIs can get in some of the rubbish results they produce. We knew they could lose their hold on reality and start making things up, but did you know they could also cheat, and tell lies about that cheating when confronted with it? For example, when given charge of doing share trades, and told not to (illegally) take advantage of insider information, they might do so anyway, and then simply deny it when challenged. Oh, and the phrase “vegetative electron microscopy” is complete nonsense; it originated when an AI was processing multicolumn text, and saw words next to each other which were in separate columns, not part of the same sentence at all, and ran them together anyway. From there, the phrase somehow spread to other publications ...

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Blender - Oscar win for Flow
by Peter Reutemann 03 Mar '25

03 Mar '25

'Making Flow – Interview with director Gints Zilbalodis Flow, the animated feature film following the mystical journey of a dark grey cat and his companions, is the manifestation of Blender’s mission, where a small, independent team with a limited budget is able to create a story that moves audiences worldwide, and achieve recognition with over 60 awards, including a Golden Globe for Best Animation and two Oscar nominations. In this interview, Gints Zilbalodis, writer and director (and more!) of the film, shares how Blender was instrumental in the creation of the film.' -- sources: https://www.blender.org/user-stories/making-flow-an-interview-with-director… https://www.reuters.com/lifestyle/flow-wins-best-animated-feature-film-osca… Cheers, Peter

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Mozilla Revises Firefox's Terms of Use, Clarifies That They Don't Own Your Data
by Peter Reutemann 03 Mar '25

03 Mar '25

'"We need a license to allow us to make some of the basic functionality of Firefox possible," Mozilla explained Wednesday in a clarification a recent Terms of Use update. "Without it, we couldn't use information typed into Firefox, for example. It does NOT give us ownership of your data or a right to use it for anything other than what is described in the Privacy Notice." But Friday they went further, and revised those new Terms of Use "to more clearly reflect the limited scope of how Mozilla interacts with user data," according to a Mozilla blog post. More details from the Verge: The particular language that drew criticism was: "When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox." That language has been removed. Now, the language in the terms says: "You give Mozilla the rights necessary to operate Firefox. This includes processing your data as we describe in the Firefox Privacy Notice. It also includes a nonexclusive, royalty-free, worldwide license for the purpose of doing as you request with the content you input in Firefox. This does not give Mozilla any ownership in that content...." Friday's post additionally provides some context about why the company has "stepped away from making blanket claims that 'We never sell your data.'" Mozilla says that "in some places, the LEGAL definition of 'sale of data' is broad and evolving," and that "the competing interpretations of do-not-sell requirements does leave many businesses uncertain about their exact obligations and whether or not they're considered to be 'selling data.'" Mozilla says that "there are a number of places where we collect and share some data with our partners" so that Firefox can be "commercially viable," but it adds that it spells those out in its privacy notice and works to strip data of potentially identifying information or share it in aggregate.' -- source: https://news.slashdot.org/story/25/03/01/2111254 Cheers, Peter

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Steam Deck & PC Gaming
by Lawrence D'Oliveiro 26 Feb '25

26 Feb '25

PC gaming is still a bigger business than consoles, according to <https://arstechnica.com/gaming/2025/01/way-more-game-makers-are-working-on-…>. And the Linux-powered Steam Deck has been pioneering the new handheld segment of the PC gaming market. But figures on Steam Deck sales are hard to come by. Here <https://newsletter.gamediscover.co/p/steam-deck-everything-you-were-afraid> is an attempt to tease out, from the available hints, how popular the product actually is. That article is over a year old by now, but it estimates that there were 3-4 million Steam Decks sold by that point. I think we can safely say another million or more in units has been added to that since then. One concrete figure from the Steam Hardware Survey <https://store.steampowered.com/hwsurvey/Steam-Hardware-Software-Survey-Welc…> is that about 2.3% of all Steam users are on Linux. This looks like 0.7% specifically on the Steam Deck, so other Linux would be about 1.6%. Another linked survey reports that over half of Steam Deck users run other game emulation systems (e.g. PlayStation 2, Game Boy, GameCube) on their Decks.

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Pi-hole 6 Is Here: Now Faster, Smarter, and More Secu
by Peter Reutemann 25 Feb '25

25 Feb '25

'The much-anticipated Pi-hole 6, a network-wide ad blocker that acts as a DNS sinkhole to block advertisements, trackers, and malicious domains at the network level, has been officially released, now featuring an embedded web server and a new REST API directly integrated into the pihole-FTL binary. This eliminates the need for Lighttpd and PHP, reducing the installation footprint and boosting overall performance. Moreover, the new API introduces server-side pagination for the query log, ensuring a faster and more responsive user experience. Next, advanced filtering gets a boost by introducing support for subscribed allowlists, also known as “Antigravity.” These allowlists work similarly to traditional blocklists but allow domains rather than denying them, giving users more nuanced control over what content gets filtered. Additionally, configuration management has been made more user-friendly by consolidating multiple settings files into a single, richly commented TOML file located at “/etc/pihole/pihole.toml.” Whether you prefer direct file editing, command line tweaks, API usage, or environment variables—Pi-hole 6 has you covered. It’s also worth noting that the user interface has received a complete overhaul. With settings now divided into Basic and Expert modes, users can tailor their experience based on their comfort level.' -- source: https://linuxiac.com/pi-hole-6-is-here-now-faster-smarter-and-more-secure/ Cheers, Peter

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