I just wish I had a way to build & use modified packages for #Debian as easily as the <pkg>_OVERRIDE_SRCDIR mechanism in #Buildroot. Something to look into maybe, but not tonight. :neocat_comfy__w_:
#Buildroot
Working on a Buildroot OS with kernel 6.18 + PREEMPT_RT on an Intel AX210 WiFi (iwlwifi QuZ firmware). With dynamic preempt everything works, but RT causes firmware init errors and the device disappears. Maybe bleeding-edge RT kernels aren’t always the best choice. Curious if others hit similar issues or found workarounds. Open to discussion.
#Linux #Buildroot #Kernel #RealTime #PREEMPTRT #iwlwifi #IntelAX210 #EmbeddedLinux #FOSS #CyberSecurity
Buildroot should let you save the package outside of the build directory, or even export the binaries once complied to be reimported simply after.
You're going to say "Dude, why would you rebuild everything everytime?"
The unfortunate reality of production is I have to. I won't go into details. But I should be able to do a make clean and a make and at least be sure to still have access to all the packages even if some are no longer supported. (And not having to rebuild every package would also be nice.)
First patch applied to #buildroot! 😊
(As in, I did apply the patch.)
Today we finished another huge milestone for our little operating system. Another release of a completely open and free system based on Linux.
A task that just twenty odd years ago would have been extremely hard to pull off. We’ve managed to do it for three years now, and with a small yet highly skilled team.
Automation, and designing the architecture for automation with YANG, really is the key to our success.
That was a great #FOSDEM again, met so many old friends and new people, saw interesting talks and had good technical discussions and some new ideas for things to try out now.
Some people I didn't run across, but the next event will come soon. :)
See you next year hopefully.
I'll be in Brussels for the #buildroot developer meetup still for the next three days.
Milestone unlocked 🚀
Built a custom Linux system with Buildroot + PREEMPT_RT on x86_64, fully functional and minimal, supported by a local AI assistant with RAG, trained on official docs: no hallucinations, only grounded answers.
Real-time Linux, reproducible builds, full control.
This one feels big.
#Buildroot #Linux #RealTimeLinux #PREEMPTRT #Embedded #OnPremAI #RAG #Minimalism
Something interesting is happening.
My personal AI assistant just consulted the manual, reasoned over it, and gave a precise answer that no generic AI would provide out of context.
This feels less like autocomplete and more like understanding.
Early signs of awareness? 👀
Just installed a personal AI assistant that runs entirely offline: no internet, no cloud, just me and my machine.
It already gives smart answers about my tech projects 🤯
Next step: adding RAG to ground it on my own documentation.
#LocalAI #OfflineAssistant #Buildroot #Linux #PrivacyFirst #RAG #FOSS #AI4Hackers #TechJoy
A request came in to add iperf3 3.20 to BashCore.
iperf3 is a solid, widely used tool for real network performance testing (TCP/UDP, throughput, jitter, loss...).
I started using it recently while working with Buildroot, and it fits BashCore’s minimal approach very well.
It will be available soon in upcoming BashCore releases 😉
Just achieved a rock-solid 8µs max jitter on a standard 500€ PC (codename: Katana) using a custom Buildroot env and Kernel 6.12.57-rt14.
The craziest part? It’s running off a 2015 USB 2.0 stick! 🤯
16 threads stress-tested (cyclictest)
cpu_dma_latency set to 0µs
Average jitter: 1µs
Zero tuning in BIOS
#RealTime #Linux #Buildroot #EmbeddedSystems #OpenSource #Kernel #Performance #KatanaRTOS
STM32MP21 Arm Cortex-A35/M33 MPU targets cost-effective applications in smart factories, homes, and cities
Update after longer run (~10M cycles): max jitter reached 55 µs 👌🏻
Plugging in AC power caused a localized spike on a single RT thread (51 µs), while others stayed stable.
Classic ACPI / power-state event: bounded, localized, fully recoverable.
Determinism preserved under real hardware events 👊🏻
#linux #realtime #rtos #buildroot #PREEMPTRT #latency #cyclictest #determinism
Built a custom RTOS with Buildroot + Linux 6.12 RT. Tested on an old Celeron dual‑core over SSH, Wi‑Fi on, and stress‑ng running.
Max jitter: 39 µs (!)
Same hardware, same kernel on Debian 13 RT in “clean lab” conditions… also 39 µs.
Real‑world vs lab, same result. Buildroot wins in determinism 🏆
#linux #realtime #rtos #buildroot #PREEMPTRT #benchmark #latency
75 MILLION cycles & 24h stress test: PASSED.
Final verdict on #RaspberryPi 4 + #Buildroot + Linux 6.19-rc1 PREEMPT_RT:
Max jitter: 118us (under heavy stress)
Max jitter: 70us (post-stress/idle)
Perfect recovery, zero drift, and absolute determinism. This $50 setup is officially outperforming industrial hardware 10x its price. The future of #RTLinux is here 👊🏻
#Linux #RealTime #EmbeddedSystems #RPi4 #KernelDev #OSDev #Stability
30 MILLION cycles. Max jitter: 118us. Solid as a rock. 🏁
Final report on my #Buildroot + #RaspberryPi 4 setup with Linux 6.19.0-rc1-v8 PREEMPT_RT.
After 8+ hours of torture:
🔥 stress-ng (2x VM workers)
📶 Active SSH over Wi-Fi
📊 Avg Jitter: 14us | Worst Case: 118us
The kernel isn't even stable yet, but this real-world performance is already production-ready. We are ready for the future of #RTLinux. 👊🏻
Built a custom #Buildroot system for #RaspberryPi 4 running the brand new #Linux 6.19.0-rc1-v8 with PREEMPT_RT! 🚀
Real-world stress test:
1M cycles with cyclictest
2x stress-ng VM workers (1GB RAM)
Active SSH over Wi-Fi
📊 Results: Max Jitter 118us (Avg 14us).
Pure magic to see this level of determinism on a bleeding-edge kernel before its official release. Stable, lean, and mean. 🐧⚙️
#LinuxKernel #RealTime #Raspberry #PREEMPT #RT #EmbeddedSystems #RPi4 #OSDev
Built a custom Buildroot distro for #Raspberry Pi 4 running:
Linux 6.12 PREEMPT_RT, Wi‑Fi, #NordVPN, #Tor + #Proxychains, #macchanger, #nftables, #nmap, #netcat, #watchdog.
A real‑time, stealth, weapon‑grade network appliance.
Minimal. Fast. Untraceable. Mine 👊🏻
#Linux #Buildroot #RaspberryPi #PREEMPTRT #FOSS #Privacy #Networking
A year ago I was experimenting with Debian netinst and live-build, trying to understand boot, init, and live systems.
Today BashCore is a set of minimalist Debian-based live ISOs (CLI/GUI, optional PREEMPT_RT).
In 2026 the focus shifts to Buildroot: reproducible systems, RT Linux, and minimal OS design for real workloads.
Happy New Year to everyone!
#Linux #Buildroot #Debian #PREEMPT_RT #RealTimeLinux #Embedded
Spending my Xmas holidays in the best way possible: deep diving into my custom BuildLab! 🛠️🐧
Running Debian 13 (via live-build) on one USB stick, compiling Buildroot projects onto another. 4 days of uptime and it’s smooth as silk.
Currently practicing with RTOS for x86 and Real-Time Linux (PREEMPT_RT) for Raspberry Pi. There’s nothing like the smell of fresh cross-compiled firmware in the morning! ☕
#Linux #Buildroot #EmbeddedSystems #Debian #RTOS #RaspberryPi #SelfHosted
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