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today's leftovers

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  • Upcoming SAVVY-V Open Source RISC-V Cluster Board Supports 10GbE via Microsemi PolarFire 64-bit RISC-V SoC

    RISC-V based PolarFire SoC FPGA by Microsemi may be coming up in the third quarter of this year, but Ali Uzel has been sharing a few details about SAVVY-V advanced open-source RISC-V cluster board made by FOSOH-V (Flexible Open SOurce Hardware for RISC-V) community of developers.

    It’s powered by Microsemi Polarfire RISC-V SoC MPFS250T with four 64-bit RISC-V cores, a smaller RV64IMAC monitor core, and FPGA fabric that allows 10GbE via SFP+ cages, and exposes six USB Type-C ports. The solution is called a cluster board since up to six SAVVY-V boards can be stacked via a PC/104+ connector and interfaced via the USB-C ports.

  • Some PSAs for NUC owners

    I’ve written before, in Contemplating the Cute Brick, that I’m a big fan of Intel’s NUC line of small-form-factor computers. Over the last week I’ve been having some unpleasant learning experiences around them. I’m still a fan, but I’m shipping this post where the search engines can see it in support of future NUC owners in trouble.

    Two years ago I bought an NUC for my wife Cathy to replace her last tower-case PC – the NUC8i3BEH1. This model was semi-obsolete even then, but I didn’t want one of the newer i5 or i7 NUCs because I didn’t think it would fit my wife’s needs as well.

    What my wife does with her computer doesn’t tax it much. Web browsing, office work, a bit of gaming that does not extend to recent AAA titles demanding the latest whizzy graphics card. I thought her needs would be best served by a small, quiet, low-power-consumption machine that was cheap enough to be considered readily disposable at the end of its service life. The exact opposite of my Great Beast…

    The NUC was an experiment that made Cathy and me happy. She especially likes the fact that it’s small and light enough to be mounted on the back of her monitor, so it effectively takes up no desk space or floor area in her rather crowded office. I like the NUC’s industrial design and engineering – lots of nice little details like the four case screws being captive to the baseplate so you cannot lose them during disassembly.

    Also. Dammit, NUCs are pretty. I say dammit because I feel like this shouldn’t matter to me and am a bit embarrassed to discover that it does. I like the color and shape and feel of these devices. Someone did an amazing job of making them unobtrusively attractive.

    [...]

    When I asked if Simply NUC knew of a source for a fan that would fit my 8i3BEH1 – a reasonable question, I think, to ask a company that loudly claims to be a one-stop shop for all NUC needs – the reply email told me I’d have to do “personal research” on that.

    It turns out that if the useless drone who was Simply NUC “service” had cared about doing his actual job, he could have the read the fan’s model number off the image I had sent him into a search box and found multiple sources within seconds, because that’s what I then did. Of course this would have required caring that a customer was unhappy, which apparently they don’t do at Simply NUC.

    Third reason I know this: My request for a refund didn’t even get refused; it wasn’t even answered.

  • GNU Binutils 2.35 Preparing For Release

    Binutils 2.35 was branched this weekend as this important component to the open-source Linux ecosystem.

    Binutils 2.35 has been branched meaning feature development is over for this next version of this collection of GNU tools.

    GNU Binutils 2.356 drops x86 Native Client (NaCl) support with Google having deprecated it in favor of WebAssembly, new options added for the readelf tool, many bug fixes, and an assortment of other changes albeit mostly on the minor side.

  • Using CPU Subsets for Building Software

    NetBSD has a somewhat obscure tool named psrset that allows creating “sets” of cores and running tasks on one of those sets. Let’s try it: [...]

  • What a TLS self signed certificate is at a mechanical level

    To simplify a lot, a TLS certificate is a bundle of attributes wrapped around a public key. All TLS certificates are signed by someone; we call this the issuer. The issuer for a certificate is identified by their X.509 Subject Name, and also at least implicitly by the keypair used to sign the certificate (since only an issuer TLS certificate with the right public key can validate the signature).

  • Security Researchers Attacked Google’s Mysterious Fuchsia OS: Here’s What They Found

    A couple of things that Computer Business Review has widely covered are important context for the security probe. (These won’t be much surprise to Fuchsia’s followers of the past two years.)

    i.e. Fuschsia OS is based on a tiny custom kernel from Google called Zircon which has some elements written in C++, some in Rust. Device drivers run in what’s called “user mode” or “user land”, meaning they’re not given fully elevated privileges. This means they can be isolated better.

    In user land, everything that a driver does has to go via the kernel first before hitting the actually computer’s resources. As Quark Labs found, this is a tidy way of reducing attack surface. But with some sustained attention, its researchers managed to get what they wanted: “We are able to gain kernel code execution from a regular userland process.”

  • What have you been playing on Linux? Come and have a chat

    Ah Sunday, that special day that's a calm before the storm of another week and a time for a community chat here on GOL. Today, it's our birthday! If you didn't see the post earlier this week, GamingOnLinux as of today has hit the big 11 years old! Oh how time sure flies by.

    Onto the subject of gaming on Linux: honestly, the majority of my personal game time has been taken up by Into the Breach. It's so gorgeously streamlined, accessible, fun and it's also ridiculously complex at the same time. Tiny maps that require a huge amount of forward thinking, as you weigh up each movement decision against any possible downsides. It's like playing chess, only with big mecha fighting off aliens trying to take down buildings.

    [...]

    I've also been quite disappointed in Crayta on Stadia, as it so far hasn't lived up to even my smallest expectations for the game maker. It just seems so half-baked, with poor/stiff animations and a lack of any meaningful content to start with. I'll be checking back on it in a few months but for now it's just not fun.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.