Well, well, well... it's Friday, so let's have a little bit of fun, shall we?

#NetBSD 11, take two!

$ qemu-img create -f qcow2 ~/Documents/VM/netbsd11.img 20G

$ sudo qemu-system-x86_64 -accel kvm -m 2G -cpu host -smp 2 -boot d -hda /home/gil/Documents/VM/netbsd11.img -name NetBSD11 -cdrom Downloads/ISO/NetBSD/NetBSD-11.0_RC3-amd64-dvd.iso -display curses -net user,hostfwd=tcp::22222-:22 -net nic

Second system for #NetBSD 11.0 RC3, an Atom PC, upgraded with the i386 CD image.
TIL how to skip sets that are not in the distribution sets. Apparently the 700 MB ISO file *just* fits, by leaving out manhtml and tests. I guess I can back-fill them?

> 710453248 Apr 4 12:22 NetBSD-11.0_RC3-i386.iso

Alt...

neofetch core dump on a fresh 11.0 RC3 NetBSD upgrade to an i386 minion.

First system upgraded to #NetBSD 11.0 RC3. Not the last.

Alt...

$ time neofetch jim@ ---- OS: NetBSD 11.0_RC3 amd64 Uptime: 5 mins Packages: 453 (pkg_info) Shell: sh Terminal: /dev/pts/2 CPU: Intel 686-class (2) Memory: 723MiB / 3987MiB real 0m0.497s user 0m0.176s sys 0m0.145s

Here are some things that one can add to the analysis of the MacOS TCP timeout clock freeze bug.

The code for calculate_tcp_clock() in XNU was changed in May 2025. Older versions of this function (e.g. in xnu-11417) worked quite differently and wouldn't have stopped ticking the clock at 32-bit unsigned integer wraparound.

None of #NetBSD, #FreeBSD, nor #OpenBSD share this exact way of doing TCP timeout processing with #XNU.

FreeBSD does not have a tcp_now and works off the global 32-bit ticks variable. OpenBSD effectively works off the kernel's system clock, too, but with a randomized offset, and does 64-bit unsigned modular arithmetic. NetBSD uses a distinct 32-bit unsigned tcp_now counter that it simply increments by 1 at regular intervals, and does modular arithmetic subtraction.

https://photon.codes/blog/we-found-a-ticking-time-bomb-in-macos-tcp-networking

#TCP #MacOS

🚀 Cells for NetBSD - Kernel-enforced, jail-like Isolation with User-friendly Operations

｢ The system stays fully NetBSD-native: isolation and policy enforcement are built into the kernel security framework, not delegated to a separate runtime layer.
The goal is not to replicate Linux-style container ecosystems, but to provide a focused operating model with minimal dependencies, no external control services, and explicit operational boundaries ｣

https://netbsd-cells.petermann-digital.de/

#netbsd #bsd

Have you been wondering about ZFS AnyRAID? Allan Jude will be giving a talk about Flexible Disk Layout @ BSDCan

If you register before May 1, the closing reception is free!

Register at https://www.bsdcan.org/2026/registration.html

#bsdcan #conference #bsd #unix #development #freebsd #netbsd #openbsd
#sysadmin #devops

Can anyone recommend a decent 2 port PCI network card?

Not PCIe or PCI-X!!!!

Bonus if its compatible with #NetBSD and has 1Gb ports

#Networking #oldcomputing

The new way of selling 'AI' seems to be to push it as a bugfinder. The latest example being waved around as of yesterday includes, as one of its non-embargoed examples, what is patched by this #OpenBSD patch.

https://ftp.openbsd.org/pub/OpenBSD/patches/7.8/common/025_sack.patch.sig

The problematic thing is that this sort of bugfixing hasn't changed the commentary in the code, which stated that p points to the last linked list entry at the point of the added null check and can never be null. But it actually can be, if there was a sole linked list entry that ended up being fully encompassed and thus deleted.

So this kind of 'AI' use is going to give us a lot more comments-do-not-match-code maintenance headaches down the road.

(Both #NetBSD and #FreeBSD factor this out into a separate tcp_sack.c and do the linked list handling slightly differently without a 'previous' pointer.)

#AI

https://red.anthropic.com/2026/mythos-preview/

I wonder why they didn't check #NetBSD ! 🤔
#FreeBSD #OpenBSD #runbsd

Cells for NetBSD: kernel-enforced, jail-like isolation

https://netbsd-cells.petermann-digital.de/

#netbsd

[discussion] the BSDs in the AI Age via @lattera https://lobste.rs/s/pdhar1 #culture #freebsd #netbsd #openbsd
https://lists.nycbug.org/pipermail/talk/2026-April/018894.html

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

🚩 #NetBSD 11.0 Nears Release With RC3 Released For Testing - Phoronix https://www.phoronix.com/news/NetBSD-11.0-RC3

@claudiom

#NetBSD to the rescue!!

Small fix, big impact 🔧

Initial situation: The network card in my parents’ mini server (NUC5PHY, RealTek 8168/8111) wasn’t properly entering Wake-on-LAN mode during shutdown. The server powers down automatically after inactivity and is woken up on demand via cron (every 1 min) from their laptops. Without WoL, it just stays off → manual power-on required.

Solution: A patch for the NetBSD PCI network driver to hook it into the power management framework. On shutdown, the NIC is now correctly configured for WoL.

First tests: works as expected ✅

#NetBSD #WoL #homelab #lowtech #pragmatic

Commit: https://github.com/MatthiasPetermann/netbsd-src/commit/4e3ee0370c3a9811f841e826ebf332639404209e

Also obligatory desktop screenshot.

[1] https://shop.rabbitholecomputing.com/products/sata-pci-hard-card

#NetBSD #486 #NSFW #RetroComputing

Alt...

Screenshot of NetBSD X desktop using the default CTWM window manager. Hot-Babe (lightly clad; the CPU is running hot) in the lower-left corner, next to conky system monitor. Lower right corner has small terminal windows tailing the snac log and showing 'pfetch' output, respectively; both next to the virtual-desktop switcher in CTWM. Two main terminal windows: One running mrxvt showing 'lspci' output, another running irssi. Plain blue background.

#NetBSD 11.0 RC3 was tagged and will soon be shipped to a http or ftp server near you.

The decision was made to delay the release and make another RC because of a number of important fixes being pulled up. This included ZFS and swap reliability fixes, improvements to support for allwinner risc-v hardware, and a curses compatibility fix.

sysadmin socks && Thongs.

#NetBSD #Linux #FreeBSD #runbsd #unix

EuroBSDcon 2026's call for papers is open, see https://2026.eurobsdcon.org/cfp/

Here is a direct link to submissions form https://events.eurobsdcon.org/2026/submit/ew426G/info/

@eurobsdcon #eurobsdcon #openbsd #netbsd #freebsd #conference #development #devops #sysadmin #freesoftware #libresoftware

Trying #NetBSD again on an old Dell laptop that didn't cooperate last time.

@khm this is also something i want. i'd love to chip in if i can.

(i've always wanted to learn about kernel/hw hacking on #netbsd but never managed to find the time t get into it.)

I just released netbsd-gce-0.4.2, with some minor bugfixes and updates.

https://github.com/google/netbsd-gce/releases/tag/v0.4.2

#NetBSD #GoogleCloudPlatform

Okay, folks, gather 'round, because you are not going to believe this one. My friend who is working at NASA told me this confidential news , but i can finally spill the beans: NASA is officially running NetBSD.

Yeah, you heard that right. Turns out, when you need an OS that can literally run on a potato *and* survive the vacuum of space without a hiccup, you do not mess around. They have been working under wraps with their deep space division on something they are calling "AstroBSD."

Apparently, the Perseverance rover on Mars? Yeah, it is not just taking pretty pictures; it is crunching data with a custom NetBSD kernel.

This just proves what foundation has been saying forever: "Of course it runs NetBSD!" From your ancient router to a rover on another planet.

#NetBSD #NASA #AstroBSD #AprilFools #OpenSource #Portability #MarsRover #SpaceTech #GeekHumor

@cross

I likewise was going to point out 'Of course it runs #NetBSD.'.

Modern #FreeBSD has dropped 32-bit support and various older non-IA processors such as PowerPC, so is not the best fit for repurposed old machines.

@codemonkeymike

Greetings BSD Cafe', I have been playing around with the NetBSD packet filter. Based on my understanding, I presume the following would pass as a basic filter for a stand alone host firewall. Its not clean but perhaps adequate enough?

$ext_if = { inet4(wm0) } # LAN Connection

group "external" on $ext_if {
pass stateful out final all
block all
}

group default {
pass final on lo0 all
block all
}

#NetBSD #npf

Ok, #NetBSD on Odroid M1S update: I'm setting this one down for a bit. I'm stumped by the ethernet phy and tired beating my head against it. I put in a PR for my current progress, and that's merged into the main repo. Spinning a release might be difficult (for submodule bitrot reasons), so I made a status post with release binaries: https://overeducated-redneck.net/blurgh/netbsd-on-odroid-m1s.html

I'm just going to use a USB-to-ethernet adapter for now and use the board for its intended purpose. Finally.

@napierge @stefano It is should be something like "wgconfig <WireGuard iface>". At least this is how I can get the same output on the #NetBSD

Alt...

Output of "iwconfig wg0" command on the NetBSD. It lists one interface and two endpoints

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@mook Well, in this case, I have a #NetBSD image (armv7.img.gz) that I would really like to write onto there.