December 2025 - Lug-nuts

Re: Systemd
by Kevin Brisson 18 Feb '26

18 Feb '26

Gary, computers are hard and shouldn't be used by retired folks. :) Run it like below, it will load last. Use AI for docs - much easier and faster than our brains. Type=idle Behavior of idle is very similar to simple; however, actual execution of the service program is delayed until all active jobs are dispatched. This may be used to avoid interleaving the output of shell services with the status output on the console. Note that this type is useful only to improve console output, it is not useful as a general unit ordering tool, and the effect of this service type is subject to a 5s timeout, after which the service program is invoked anyway. https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html Kevin

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Memory
by Chris Miller 21 Jan '26

21 Jan '26

Hi Folks, I have some memory that I can't use, but may not be completely useless. If anybody is interested, speak up. 1 - 8GB PC3 10600 1333 MHz (2x4GB) 1 - 1GB PC3 1600 (1x8GB) 4 - 1GB PC2 6400 CL5 -- Chris. V:916.799.9461 F:916.974.0428 A: Because we read from top to bottom, left to right. Q: > Why should I start my reply below the quoted text?

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Happy New Year Lug Nuts!
by Kevin B 11 Jan '26

11 Jan '26

I hope Santa was good to you and Happy New Year! Thanks Kevin When is the next meeting?

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btrfs subvolumes
by Brian E. Lavender 17 Dec '25

17 Dec '25

We were discussing separate partitions for / and /home in an installation and I noticed that my two separate partitions shared the same space. btrfs to the rescue! https://fedoramagazine.org/working-with-btrfs-subvolumes/ So where do the home and root subvolumes in Fedora Linux come from? These are created by the installer at install time. Traditional installations would often include a separate filesystem partition for the / and /home directories. During boot, these are then appropriately mounted to assemble one full filesystem. But there is an issue with this approach: Unless you use technologies such as lvm, it is very hard to change a partitions size at some point in the future. As a consequence you may end up in a situation where either your / or /home runs out of space, while the respective other partition has lots of unused, free space left. Since Btrfs subvolumes are all part of the same filesystem, they will share the space that the underlying filesystem offers. Remember when we created the subvolumes above? We never told Btrfs how big they are: A subvolume can take up all the space the filesystem has, by default nothing keeps it from doing so. However, we could dynamically impose size limits via Btrfs qgroups, which can also be modified during runtime (And we’ll see how in a later article in this series). -- Brian Lavender https://www.brie.com/brian/ "There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies." Professor C. A. R. Hoare The 1980 Turing award lecture

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meeting tomorrow
by Brian E. Lavender 15 Dec '25

15 Dec '25

Don't forget the SacLUG tomorrow at Kupros. https://www.saclug.org/articles/2025/december-2025.html Brian -- Brian Lavender https://www.brie.com/brian/ "There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies." Professor C. A. R. Hoare The 1980 Turing award lecture

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AI news
by Kevin B 06 Dec '25

06 Dec '25

Now that you are all informed about AI due to my presentation! In the news this month there are two AI companies one US bound one from the UK they have released some impressive open source models. One is Mistral from the UK https://mistral.ai/ On Huggingface they have 8 billion parameter model - this fits 8gb GPU memory space by Unsloth https://huggingface.co/collections/unsloth/ministral-3 Another from the US is AllenAi https://allenai.org/olmo Huggingface 8 billion parameter model by Unsloth https://huggingface.co/unsloth/Olmo-3-7B-Instruct-GGUF Why is this cool well for one thing the Chinese Deepseek and Qwen models have been the dominant opensource models to date. What is cool about the Olmo models is not only is the model open source but the training data is too. Huge win for them in regards to transparency From a coding aspect UC Davis allows us to use Chat GPT 5 at work. With Visual Studio Code you run a tool called Codex with Chat GPT. In the last week or so I have automated a bunch of jobs and and deployments with it. Yes, I understand the code, but it does it faster than myself. I'm on a serous automation kick at work. Not only has the tool helped with automation but it helps me understand the code base on how some of these apps work that I have to trouble shoot. Franklin was a great place to work but tough to get anything done. It's been a breath of fresh air working at UC Davis, they let me fix and improve as needed. I feel super productive. I hope everyone had a nice Holiday feast week last week and look forward to seeing you all at the next meetup! Kevin

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Gaping Hole In ReactJS
by Linus Sphinx 06 Dec '25

06 Dec '25

Patch YESTERDAY: https://arstechnica.com/security/2025/12/admins-and-defenders-gird-themselv… If you're not familar this is what a React web app looks like: https://github.com/Sphinxtar/SixCards

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X11 on Fedora 43
by Linus Sphinx 01 Dec '25

01 Dec '25

Wasn't too hard, still desktop shopping. $ sudo dnf install lightdm lightdm-gtk-greeter $ sudo dnf install @xfce-desktop-environment $ sudo systemctl disable gdm $ sudo systemctl enable lightdm $ systemctl reboot Have to pick the xsession at start, menu in the upper right corner, then log in, right click settings to change desktop image.

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Wayland and Fedora
by Linus Sphinx 01 Dec '25

01 Dec '25

Has anyone seen it wake up? Just logging in it sits and the mouse cursor dies for 45 seconds, it lags all over the place. Now Fedora and Wayland both suck. Switching to Arch.

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something got me thinking about Usenet
by Brian E. Lavender 01 Dec '25

01 Dec '25

I see that Sonic offered Usenet service until 2016 https://sonicstatus.com/2016/09/09/usenet-service-ended/ I haven't connected to a Usenet server for I believe around ten years! Brian -- Brian Lavender https://www.brie.com/brian/ "There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies." Professor C. A. R. Hoare The 1980 Turing award lecture

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Lug-nuts December 2025