TIL, when a thread calls mmap(2) with a fd on #linux, another thread can race with it to change the fd with a dup2(2) to have another fd mapped to memory. I wonder what #kernel people think about this. Do you think it's a bug worth reporting? I'm also curious how #bsd behaves, I plan to check.

So, I'm now desperate, as this is the only big blocker for my @novacustom laptop to meet my computing requirements.
I realize hibernatation to an encrypted partition can be tricky, but the tricky part isn't the problem because (given the logs) clearly the hibernate image is found during startup. I don't get why it says:
https://novacustom.com/forum/d/619-resume-after-hibernation-initially-worked-but-now-fails-every-time
“Hibernate inconsistent memory map detected!”
“PM: hibernation: Image mismatch: architecture specific data”

@debian users, any ideas?

#AskFedi #Linux

GNOME.Asia 2025 is live in Tokyo, Japan! The two day event has a fantastic schedule of talks and workshops.

https://events.gnome.org/event/303/

If you can’t attend in person, the sessions can also be viewed remotely; head over to the online registration to sign up and follow along:

https://events.gnome.org/event/303/registrations/294/

#GNOME #GNOMEAsia #GNOMEAsia2025 #OpenSource #FOSS #Linux

Problem: I wanted to share music library between a work and personal laptops without storing the collection on a pay-per-month cloud service.

Solution: I installed Navidrome on my home Linux server, then installed Supersonic app for Linux to access it. Success! Whole process took less then 30 minutes.

https://www.navidrome.org/

https://github.com/dweymouth/supersonic

#linux #opensource

Et voici mon #twitchrecap #twitchrecap2025 ! Merci à tout.e.s pour les subs, follows, likes, et soutiens de toutes sortes à commencer par celui de me regarder ! #sysadmin #devops #twitchfr #twitchstreamer #TwitchStreamers #BSD #Linux

Alt...

Infographie récapitulative des statistiques de ma chaîne Twitch. 60 streams, 172 nouveaux followers, 48 subs, et plus de 1800 heures regardées.

If you are in a technical or non-technical #opensource role, @osjobhub and Linux Professional Institute (LPI) want to hear from you 🫵

Answer 8 quick questions in the 2026 Open Source Professionals Job Survey, and let employers know what matters most for your job satisfaction.

Share your voice: https://lpi.org/ox6w

#freesoftware #Linux #developers #admins #BSD #Mozilla #Canonical #LPI #OSJobhub #FOSSjobs #techcareers #techsurvey

Alt...

Open Source Job Survey from Open Source JobHub and LPI is here!

Hard to believe this gorgeous 27" iMac, with a 6 core i5-8500, 16 gigs of ram and a solid state drive was on its way to the dump.

Apparently, it's not "good enough" to run the new MacOS, so it was discarded.

Thankfully, #linux is here to save the day and make this a perfect computer for someone that will last YEARS into the future.

#nixos #nixbook

Alt...

27" iMac running the Nixbook installer

Alright, I know we all know the "btw I use Arch" meme, but real talk. Who actually brings up which OS they use the most?

(Delete & Redraft to add Gentoo ​ )

#Linux #Unix #BSD #ArchLinux #NixOS #Gentoo #FOSS #Poll

🤚 Logical volume management
👉 Emotional volume management

#Linux #LVM #shitpost

@edboythinks A bit? 😁 The #Fediverse runs on #Linux.

I'm a #Linux guy now, thanks Mastodon

💚 Made by a community, not a corporation

💚 Designed for my comfort and control, not for someone else's profit

💚 No company pushing weird crappy products I don't want

💚 No auto-launching bloat killing the computer's performance

Why did I wait this long?! I LOVE IT

Post: "My hardware isn't being detected"

Commentor: "This is why I love immutable distros"

Me: How the fsck is that helping the person asking the question? You're the kind of person who will drive away people who want to switch to Linux.

#Linux

#X68030 で動く #NetBSD で、 #X11 を動かすのにFC2ピンを折るのを要求するのはNetBSD的でないと感じる。これはどちらかと言うと #Linux 寄りに感じる

@SrRochardBunson @ajroach42 @stefano

The BSDs are *awesome* operating systems. #FreeBSD is a high performance general purpose OS. It is modern #Unix. #NetBSD is for portability, it supports nearly every CPU architecture under the sun. #OpenBSD is security-focused. #DragonflyBSD is a FreeBSD fork focused on the desktop.

Most of my experience is with FreeBSD, which I will enthusiastically share. It is unquestionably a solid server OS. As a desktop OS, it works quite well. It definitely does not feel like "Linux from 2004." The major desktop environments like #KDE #GNOME #XFCE are all supported and #nvidia releases drivers for the OS too. Modern hardware is supported. For *cutting edge hardware*, #Linux may be the better bet here. It's a little slower to adopt cutting edge gear because it is focused on stability and elegant solutions, not trend-chasing.

FreeBSD is an excellent OS to learn. It runs beautifully and it's more coherent and better designed. Documentation is *solid*.

In 2002 Anders Jensen-Urstad asked some computing pioneers and well known programmers to share screenshots of their desktops, then did it again in 2015. This post presented and commented the screenshots.

https://anders.unix.se/2015/12/10/screenshots-from-developers--2002-vs.-2015

#screenshots #unix #linux

Guy I used to work with had his terminal set to a proportional font.

This was over 20 years ago.

I still think about that.

#linux #unix #SysAdmin

We're looking for some fine folks who would be willing to host Linux App Summit in April 2026 specifically we are looking for countries in Europe. If you're interested in hosting, please DM me. :)

#Linux #AppEcosystem #GNOME #KDE

@kaidenshi that's why #Linux didn't go for GPLv3 or AGPLv3

I have a training course for the basics of Rust. In about four hours I can cover enough to enable the students to learn more on their own. Now that Rust is a core part of the Linux kernel, I imagine there are some Linux kernel developers who feel they need to learn Rust soon. They should talk to their employer to hire me to teach them.

https://liw.fi/training/rust-basics/

(Blatant ad. Feel free to boost.)

#Linux #Rust #RustLang

#Manjaro #Linux has again forgotten to update their TLS certificate.

5th time.

https://forum.manjaro.org

Alt...

Your connection is not private Attackers might be trying to steal your information from forum.manjaro.org (for example, passwords, messages, or credit cards). Learn more about this warning net::ERR_CERT_DATE_INVALID forum.manjaro.org normally uses encryption to protect your information. When Brave tried to connect to forum.manjaro.org this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be forum.manjaro.org, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Brave stopped the connection before any data was exchanged. You cannot visit forum.manjaro.org right now because the website uses HSTS. Network errors and attacks are usually temporary, so this page will probably work later.

be wary of blaming the tool when the real tool may have just been yourself

#sysadmin #openbsd #freebsd #netbsd #linux

What do Linux kernel version numbers mean?

If you're old enough, you no doubt remember that up until the 2.6.0 release of the Linux kernel, an odd number after the first version number indicated a pre-release, development version of the kernel. Even though this scheme was abandoned with the 2.6.0 release in 2003 and since then every single release has been a stable release, it seems the ghosts of

https://www.osnews.com/story/143992/what-do-linux-kernel-version-numbers-mean/

#Linux

Today's #FreeSoftwareAdvent is a double whammy of shell-based "checking" utilities.

linkchecker (https://linux.die.net/man/1/linkchecker; probably get it from your distro) checks websites (recursively, as you wish) for broken links.

shellcheck (https://www.shellcheck.net/; available in browser or as a terminal tool) checks bash and other shell scripts for bugs.

Very simple, single purpose, very useful, tools.

#FOSS #Linux

Do you want to run a Linux or Unix/macOS program directly after some other process has ended? Use the pwait as follows:
```pwait pid && new_app1```
For example, for demo run sleep for 1200 and wait to end and then run the app2:

```sleep 1200 &
pwait pid_of_sleep_here && app2```

See the `pwait` man page for more info as syntax changes slightly between Linux and BSD version. This is very handy utility and not well known to many:
`man pwait`

#unix #linux

Alt...

a screenshot of the pwait manual page from Linux. The screenshot reads: NAME pwait — wait for processes to terminate SYNOPSIS pwait [-v] [-c] pid ... DESCRIPTION pwait waits until each of the given processes has terminated. The options are as follows: -v Print the exit status when each process terminates. -c Return 111 if any process exited non-successfully. EXIT STATUS The pwait utility exits 0 on success, and >0 if an error occurs. Invalid pids elicit a warning message but are otherwise ignored. ERRORS Check these prerequisites if you see this error: binding sk_nl error: Operation not permitted pwait requires special permissions to run, either root or the Linux CAP_NET_ADMIN capability. pwait only works on Linux kernels with the kernel options CONFIG_CONNECTOR=y CONFIG_PROC_EVENTS=y

Fish Alpinism

How I make digital art.

https://triapul.cz/_/1765291397

#unix_surrealism #openbsd #alpine #linux #gimp #art #foss

Alt...

artist keyboard

New in the LinuxLab
Crux #Crux
Slackware #slackware
Not linux: NetBSD #NetBSD to try pkgsrc
#linux

"#XLibre and #Nvidia…" Well, this one is dedicated to all the ABI breakage "experts":

Nvidia GeForce 210, Nvidia driver v340, XLibre with https://github.com/X11Libre/xserver/pull/658, #Slackware 15.0, #Linux 6.17.6, #Fvwm

More #liberatedscreens at https://github.com/orgs/X11Libre/discussions/211

Alt...

Nvidia GeForce 210, Nvidia driver v340, XLibre with https://github.com/X11Libre/xserver/pull/658, Slackware 15.0, Linux 6.17.6, Fvwm

"This Could Be The Linux Phone We All Have Been Waiting For"

"The Jolla Phone returns over a decade after the original 2013 launch."

https://itsfoss.com/news/jolla-phone-returns/

#Linux

Twelve Days of Shell: Test your shell knowledge by taking the command line challenges. Are you ready?

* source code repo to host it locally https://gitlab.com/jarv/cmdchallenge
* Or do it online https://12days.cmdchallenge.com/

Good luck, CLI lovers!

#unix #linux

Alt...

A screenshot of 'Twelve Days of Shell' command line challenge page.

Discover the best GUI tools to search your Linux system without touching the terminal.

https://itsfoss.com/linux-gui-search-tools/

#linux

Ich bin auf der Suche nach einem refurbished #Notebook, auf dem #Linux (vermutlich Ubuntu) laufen soll. Für einfache Büroarbeit und etwas Webentwicklung. Überwiegend am Monitor angeschlossen. So bis 500 Euro. Habt ihr Empfehlungen? Die ThinkPads sehen ganz nett aus, aber ich steige nicht mehr durch, welches Modell geeigneter wäre. Und welches gut mit Linux zusammenspielt (Power Management etc).

Ergänzung: AMD und kein Intel.

Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟬𝟴 (Valuable News - 2025/12/08) available.

https://vermaden.wordpress.com/2025/12/08/valuable-news-2025-12-08/

Past releases: https://vermaden.wordpress.com/news/

#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday

Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟬𝟴 (Valuable News - 2025/12/08) available.

https://vermaden.wordpress.com/2025/12/08/valuable-news-2025-12-08/

Past releases: https://vermaden.wordpress.com/news/

#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday

You know, I "lived through this" on #linux before , but I honestly forgot just how ridiculously better #gcc 3.4 is than gcc 2.95.3.

I remember the upgrade when this was all current.

But hot damn, how did we ever manage with GCC 2.95. (No shade at the GCC project here, a large part of that was just how garbage older C/C++ is)

#retrocomputing

Why am I only learning about DuckDuckGo custom mascots for Linux, FreeBSD, OpenBSD etc.

#openbsd #ddg #freebsd #linux

Alt...

DuckDuckGo mascot as FreeBSD

@amin @spaceraser @jlw_the_jobber @mason

Honestly, the #Linux kernel is just such an amazing accomplishment.

I don't understand why userspace has to be such a gigantic ball of wax, and constantly changing, and subject to such insane politics and infighting*.

Meanwhile, #OpenBSD is like, "Well, our kernel doesn't have a modern filesystem, or bluetooth, and it may just panic if you poke the wrong thing, but the manpages will make you weep with joy, and everything is more or less sane and nicely laid-out, and we don't change things unless the change is an improvement."

* To be sure, right or wrong, I consider the constant push towards systemd-kitchensink to be very much political. And by "political," I mean "stupid office politics," not "your discussion of inherent issues of justice and ethics makes me uncomfortable in my privilege."

I had no idea that Borland's famous Turbo Vision text user interface from the 1990s was released into the public domain and has since been ported to #Linux and elsewhere, including this amazing terminal multiplexer that has the makings of a tmux on steroids https://github.com/magiblot/tvterm

Alt...

A screenshot featuring the Unix terminal application Konsole running the tvterm terminal multiplexer featuring two virtual terminals in a stacking window layout. The window on top features an HTML document being edited in a white on black interface. The background window features WordPerfect 8.0 for Unix editing a document with a white on blue colored interface. A popup menu appears on top with controls for: New Term Close Term Next Term Previous Term and other menu items

This year brought great improvements to #accessibility in GNOME, including:

• Accessibility from the start on the login screen
• Full accessibility of GNOME Web
• Tons of improvements to Calendar
• Screen reader integration for Notifications
• Configure #Orca screen reader from Settings
• GTK apps integrated w/Windows & macOS accessibility

Help us reach 1,500 #FriendsOfGNOME so we can focus on accessibility even more in 2026!

https://donate.gnome.org

#a11y #GNOME #FOSS #OpenSource #Linux

@JdeBP It's an older HP tablet-laptop thing. It runs #Windows and #Linux fine. The problem is the system cannot proceed after receiving the error. It just sits there until I reboot.

Do you Patch machines regularly? Even when your bandwidth is constrained take the time to patch them and be safe.

In this example I photographed the patching of one of the micro SD Cards of the SBC.

I've patched all of them.

For the X86 machines the Os on the main 2280 SSD is patched. Other SSD and HDD will follow. The BSD HDDs need patch Love 💕 too. They will get it

#Raspberry #Pi5 #SBC #technology #ARM #X86 #patching #Linux #OpenSource #BSD #freeBSD #ghostBSD #programming

Today's #FreeSoftwareAdvent is `tmux`, the terminal multiplexer.

I know that `tmux` will be second nature to many of you, but I've been gradually learning it over the last year (https://neilzone.co.uk/2025/06/more-tinkering-with-tmux/), and I find it invaluable.

Although I had used `screen` for years, I wish that I had known about `tmux` sooner.

I use `tmux` both on local machines, for a convenient terminal environment (from which I can do an awful lot of what I want to do, computing-wise), and also on remote machines for persistent / re-attachable terminal sessions.

https://github.com/tmux/tmux

#Linux #tmux #terminal