#qemu — Public Fediverse posts

Oh, look, another "revolutionary" kernel that boots in #QEMU 😴. Who knew we needed yet another toy project cluttering our #GitHub feeds? 🙄 It's almost like someone's trying to win an award for the world's smallest C code that nobody asked for. 🏆
https://github.com/obinexus/mmuko-boot #revolutionarykernel #toyproject #smallestCcode #techhumor #HackerNews #ngated

Mmuko Boot Sequence – a tiny freestanding C kernel that boots in QEMU

https://github.com/obinexus/mmuko-boot

Comments: https://news.ycombinator.com/item?id=49554102

#HackerNews #MmukoBootSequence #QEMU #CKernel #OpenSource #EmbeddedDevelopment

One excellent developer quality of life change that got merged into #qemu last week was #meson support for the #tcg checks. The TCG checks are complicated because they require multiple cross compilers for all the guest tests and meson doesn't really understand the concept. However Pierrick was able to work around that and now you can run individual tests like this:

```
./run meson test --suite tcg aarch64-softmmu-memory-sve aarch64-linux-user-sve-ioctls
```

Developer JPRX launched Darwin-VM to emulate Apple Silicon systems. This QEMU-based tool assists security researchers with XNU kernel debugging and analysis.

#DarwinVM #AppleSilicon #XNUKernel #CyberSecurity #QEMU

http://securityonline.info/darwin-vm-apple-silicon/?utm_source=mastodon&utm_medium=jetpack_social

... und jetzt noch das Sahnehäubchen um euch gänzlich verrückt zu machen: das ist der Host.

Was soll ich sagen ... es läuft
¯\_ (ツ)_/¯

#haiku #haikuos #qemu #intelnuc #minipc #virtualisierung #virtuellemaschine #lowspec

Huh? Wie? Nee, nix besonderes, bisschen rumklicken, dies das ...

#Haiku #HaikuOS #Simutrans #qemu

Ich? Gerade? Ach, nichts nichts ...

#Haiku #HaikuOS #Installation #Qemu

#AskFedi are there any Australian or NZ-based #QEMU developers?

Написал свой ассемблер, чтобы понять, откуда берётся ff010113. Почти половину моей программы он выдумывает

Написал свой ассемблер, чтобы понять, откуда в дизассемблере берётся ff010113. Заодно посчитал, сколько строк моей программы процессор вообще не умеет исполнять, и проверил это на четырёх наборах команд, включая живой ESP32 на столе. На кристалле первая программа серии сломалась: она пишет в UART быстрее, чем провод успевает передавать, и в эмуляторе этого не видно. Что сказала плата?

https://habr.com/ru/articles/1076022/

#RISCV #ассемблер #кодирование_инструкций #псевдоинструкции #RV32I #компоновщик #релокация #bare_metal #QEMU

Just summarized my FrOSCon experience. Even not German nie understanding it good the conference still was great!

https://winds0r.wordpress.com/2026/08/17/my-froscon-2026-experience/

Thank you @gyptazy for your talk and personal Chat time! I am going to start looking your #manpageblog
as alternative to #Wordpress!

#proxmox #pegaprox #froscon #qemu #owncloud #collabra

I got a little distracted today and decided to take one last stab at getting Windows NT Terminal Server Edition working in qemu, and I got it!

Turns out the answer to everything is SCSI. For whatever reason, TSE just will not work with IDE at all.

Using SCSI for Workstation and regular Server also make that installation faster and in a way, easier since you just have to install the driver during setup and then not think about it.

Updated the guide and driver disk to include drivers for the Symbios/LSI Logic SCSI controller
https://mroach.com/2026/08/windows-nt-4-on-libvirt/

Now we're cooking with gas.

#WindowsNT #SCSI #libvirt #qemu

Just upgraded qemu from v10.2.4 to v11.0.3 on all my hypervisor nodes in my private cloud and it seems to have went flawlessly.

#selfhosted #homelab #qemu #linux #virtualization

FreeBSD: DRM: virtio-gpu: 2D KMS driver for QEMU/UTM/libvirt guests by borovikovd · Pull Request #499

https://github.com/freebsd/drm-kmod/pull/499

❮… developed with heavy AI assistance. Knowing the failure modes of AI-generated code, it went through adversarial review and testing rather than just "it works":

…

Root causes for the platform workarounds (notify-window fault, interrupt arming, indirect descriptors) are documented in the commit messages and README. …❯

👍️

Partial background: an issue that was raised more than five years ago, <https://github.com/freebsd/drm-kmod/issues/62>.

#FreeBSD #AI #virtual #graphics #virtio #QEMU #UTM #libvirt #KMS #DRM #VirtualBox

Как мы сделали инкрементальную репликацию из OpenStack на уровне QEMU/KVM в релизе «Хайстекс Акура 4.6»

Если вы настраивали аварийное восстановление для OpenStack, то знаете частую проблему: при отказе от Ceph организация безагентной инкрементальной репликации требует поиска альтернативных способов отслеживания изменений. Самым очевидным кандидатом на эту роль выступает механизм QEMU Dirty Bitmaps — это хорошо изученный в экосистеме KVM/QEMU способ отслеживания измененных блоков (CBT). Однако его использование в OpenStack упиралось в отсутствие штатного API на уровне управляющего слоя. Из-за этого приходилось выбирать между двумя крайностями: строить инфраструктуру исключительно на Ceph или ставить агенты внутрь каждой гостевой ОС. Ниже расскажу, с какими ограничениями сталкивались наши пользователи раньше, как мы переписали логику работы с инкрементальными данными на уровне гипервизора и что еще полезного появилось в релизе

https://habr.com/ru/companies/hstx/articles/1074118/

#OpenStack #QEMU #KVM #CBT #Ceph #dirty_bitmaps #Cinder #инкрементальная_репликация #безагентный_бэкап #СХД

I dag har jeg brukt #gnomeboxes som kjører #qemu .

Installerte #Micro10 (Windows Lite-X) for #Garmin Express som nekter å kjøre på min #Fedora #linux

Liten installasjon (2 GB RAM, 20 GB disk), og en veldig liten og kjapp Windows 10 installasjon, med tilgang til USB og delte mapper.

Dette var så kjapt og enkelt at jeg kan slette min #Wine folder helt.

Nå får jeg endelig kjørt en oppdatering av kart og golfbaner for min klokke.

I hate to say it but the #grokpedia #qemu write-up: https://grokipedia.com/page/QEMU is better than the #wikipedia equivalent it was originally sourced from: https://en.wikipedia.org/wiki/QEMU

Of course it still has factual errors in it and it seems the all seeing #xAI has ceased doing edits since April. I guess they needed the compute for something else.

Q: How to create a VM in 10 seconds from the terminal?
A:

🦌 **kudu** — A TUI for creating and managing QEMU virtual machines on Linux

💯 A lightweight alternative to virt-manager and GNOME Boxes (without relying on libvirt)

🦀 Written in Rust & built with @ratatui_rs

⭐ GitHub: https://github.com/pythops/kudu

#rustlang #ratatui #tui #linux #qemu #virtualization #opensource

Hmm I pulled a thread on #qemu's #virtio #crypto module and now I'm sorry I did 👀

Linux: Kernel 7.2.0 for X1000/e5500

Parallel to the release of Linux kernel 7.2.0, Christian 'xeno74' Zigotzky has finalized the compilation for AmigaOne X1000 and e5500 machines (X5000/20, X5000/40, Mirari, and QEMU VMs).

https://www.amiga-news.de/en/news/AN-2026-08-00102-EN.html

#Linux #QEMU #kernel

#Linux Weekly Roundup for August 16th, 2026: Linux 7.2, #Debian turns 33, #LinuxMint 22.3 HWE with Linux 7.0, #GNOME 51 beta, #SparkyLinux 8.4, #Flatpak 1.18.1, #QEMU 11.1, #Shelly 3.0.4, #Wireshark 4.6.8, #RaspberryPi Imager 2.0.11, Bulletproof #KDE Suite, KDE Frameworks 6.29, #NVIDIA promotes GeForce NOW to stable on Linux, #GIMP 3.4's new features, Linux kernel management in Linux Mint 23, and more https://9to5linux.com/9to5linux-weekly-roundup-august-16th-2026

#OpenSource #FOSS #GNU

Episode 30 of Dark Blue Weekly released. Yes, it's already the 30th episode and because of this, I've simplified the appearance of the article a little bit.

https://darkblueproject.com/sites/news/dbw-e30.php

#darkblueweekly #darkblueproject #linux #cachyos #linuxmint #tuxedoos #tuxedocomputers #froscon #qemu #linuxdistro #freesoftware #opensource #debian

(more Linux and FOSS news in previous posts of thread)

Raspberry Pi Imager 2.0.11 Adds Support for Multi-Frame Compressed Images:
https://9to5linux.com/raspberry-pi-imager-2-0-11-adds-support-for-multi-frame-compressed-images

QEMU 11.1 Released with Universal Flash Storage (UFS) Emulation Support:
https://9to5linux.com/qemu-11-1-released-with-universal-flash-storage-ufs-emulation-support

FreeBSD 14.5 Beta 1 Released With Various Backports, Security Fixes:
https://www.phoronix.com/news/FreeBSD-14.5-Beta-1

Redox OS Enjoys installer Improvements, Performance Enhancements:
https://www.phoronix.com/news/Redox-OS-July-2026

X is open sourcing its "For You" algorithm and letting users check for shadowbans:
https://alternativeto.net/news/2026/8/x-is-open-sourcing-its-for-you-algorithm-and-letting-users-check-for-shadowbans/

VLC is Wrongly Blamed for Microsoft Defender's Clumsiness:
https://feed.itsfoss.com/link/24361/17416952/vlc-microsoft-defenders-drama
(Normies gonna protect their favorite enslavement cell no matter what. I'd say normieland "is an embarrassing place".)
(It reminds me of a Hungarian tech news/forum site which wrote (they probably still do, I just don't go there anymore lol) about Windows all the time, and highlighted each Linux vulnerability saying "see, that's why you should just stick to Windows" while they also wrote about Windows vulnerabilities so they contradicted themselves pretty noticably. And the sad thing is they have quite a lot of readers who are also brainwashed zombies shilling Windows in the comment section, and if a Linux user accidentally finds the way there, he/she quickly gets humiliated like crazy. So Linux users are the elitists? Hmm, not so sure about that lol)

OpenSSH 10.5 Ships Five Weeks After 10.4, Citing AI-Discovered Vulnerabilities as Reason for Faster Release Cadence:
https://www.linuxcompatible.org/story/openssh-105-drops-five-weeks-early-to-fix-aidiscovered-vulnerabilities/

Intel XPU Manager 2.1 Released For Monitoring Arc Pro Graphics On Windows/Linux:
https://www.phoronix.com/news/Intel-XPU-Manager-2.1

rsync 3.5.0 Drops with 33 CVEs Fixed, Plugging Symlink Race Conditions That Haunt Backup Pipelines:
https://www.linuxcompatible.org/story/rsync-350-drops-33-cves-plugs-critical-symlink-race-conditions/

#WeeklyNews #OpenSource #FOSSNews #FOSS #OpenSourceNews #News #RaspberryPIImager #QEMU #FreeBSD #BSD #Redox #RedoxOS #Twitter #VLC #OpenSSH #SSH #XPU #Rsync #FosseryTech

# ls /lost+found
Panic

BAD NAUGHTY #OpenBSD!

where's the --harder option to #fsck when we need it?

(the root cause is that #QEMU crashed, but for OpenBSD's fsck to then leave /lost+found in a crash-causing inconsistent state is ... less than ideal)

My implementation of NXP FlexCAN core emulation has been released in QEMU 11.1: https://wiki.qemu.org/ChangeLog/11.1

Thanks to @ppisa and @marckleinebudde for support and review.

#qemu #canbus

Slides: https://gitlab.fel.cvut.cz/canbus/qemu-canbus/-/wikis/uploads/9867a7b7b908e34c206ab948972b7a01/qemu-flexcan-slides.pdf
Thesis: http://dspace.cvut.cz/bitstream/handle/10467/122654/F3-BP-2025-Bobek-Matyas-BP_Bobek_FlexCAN_final_4.pdf

В заголовке моего ELF есть точка входа. Оказалось, её никто не читает

Три статьи я собирал файл и отдавал его эмулятору, ни разу в него не заглянув. Заглянул. Внутри два разных описания одних и тех же байтов, ответ на вопрос, откуда взялся адрес 0x80000000, и поле, которое я заполнял зря. Ну, открываем!

https://habr.com/ru/articles/1068276/

#RISCV #QEMU #bare_metal #ассембле #ELF #компоновщик #линкерскрипт #точка_входа #сегменты_и_секци

Моя рекурсия зависла навсегда, и это был правильный результат

Написал рекурсию тем же приёмом, что во второй статье, и программа повисла навсегда: возвращаться ей было некуда. Чиню, завожу стек и по дороге выясняю, что регистра sp в наборе команд нет вовсе. А потом урезаю стек до 128 байт, и сборка об этом не говорит ни слова. Ломать второй раз!

https://habr.com/ru/articles/1067662/

#RISCV #QEMU #bare_metal #ассемблер #стек #рекурсия #соглашение_о_вызовах #переполнение_стека #psABI

Двенадцать символов, двадцать один байт: как я научил голый RISC-V говорить «Привет, мир!»

Без библиотек, без обвязок, без операционной системы под ногами. Реальный код на реальном железе — ну, почти реальном. Пустая эмулируемая машина RISC-V, десяток строк ассемблера, и в терминале: Сначала думал вывести «hello», как все. Пусть будет «Привет, мир!» Ну, привет!

https://habr.com/ru/articles/1065554/

#RISCV #QEMU #bare_metal #UART #ассемблер #UTF8

Запуск Vivado 2019.1 на Orange Pi 3 LTS через QEMU

Если вам интересно как выглядит работа Vivado на одноядерном ARM процессоре с частотой 1.8 ГГц, и 2 Гб ОЗУ, то я вам это покажу, и расскажу, как я запустил и успешно прошил плату (ДА! Собрал проект и прошил).

https://habr.com/ru/articles/1033766/

#Vivado #Xilinx #FPGA #OrangePi #Orange_Pi_3 #QEMU

Anyone having a working #QEMU config for booting an old Windows XP?

It appears that "pc-q35-2.10" is no longer available. And with "pc-q35-10.1" it fails to boot with an error stating that the system isn't fully ACPI compliant.

Edit: Same for "pc-q35-4.2" which is the oldest one I can select.

Edit: This is my config right now (worked with "pc-q35-2.10"): https://privatebin.net/?149dc6d610a02133#Ff49yRgAuEtAoNRyFpXMgsw4yT89q4CZYydu2ksTvPSw

#WinXP #Retrocomputer

Installare Virtual Machine Manager su Ufficio Zero Linux 11

https://peertube.uno/w/c1Zzpn4NkKb3CzaXVpgyMf

(more Linux and FOSS news in previous posts of thread)

Apache NetBeans 27 released with Gradle 9 fixes, improved JDK 25 compatibility, Maven 3.9.11, improved refactoring for standalone files, improvements for code formatting and reindentation, etc.:
https://alternativeto.net/news/2025/8/apache-netbeans-27-released-with-gradle-9-fixes-improved-jdk-25-compatibility-and-more/

Microsoft's DocumentDB (PostgreSQL-based, MongoDB compatible document database) is now under the umbrella of the Linux Foundation:
https://news.itsfoss.com/documentdb-moves-to-linux-foundation/

QEMU 10.1 released with Intel TDX (Trust Domain Extensions) support, ARM, RISC-V and LoongArch improvements, etc.:
https://9to5linux.com/qemu-10-1-released-with-tdx-support-many-risc-v-and-arm-improvements

FreeBSD quarterly status report: bsd-user-4-linux (BSD user-mode emulation for QEMU on Linux), ability to install packages from pkg.freebsd.org in the system installer, Sylve (Proxmox-inspired, unified system management platform), Geomann (partition tool), work on suspend/resume and s0ix sleep support for laptops, porting Apple's HFS+ file-system:
https://www.phoronix.com/news/FreeBSD-Q2-2025-Status-Report

GhostBSD presents the new macOS-like Gershwin desktop environment, a successor to GNUstep, currently with Xorg support with plans for Wayland, using XFCE4-WM with plans for a custom WM:
https://www.phoronix.com/news/GhostBSD-Gershwin-Desktop

#WeeklyNews #OpenSource #FOSSNews #OpenSourceNews #FOSS #Apache #NetBeans #DocumentDB #QEMU #VirtualMachine #Virtualization #Database #DatabaseManagement #IDE #FreeBSD #GhostBSD #Gershwin #OperatingSystem #OS #DesktopEnvironment #BSD #Coding #Development #DBMS #CodeEditor #Programming #Java #JavaDev #JavaDevelopment #FosseryTech

hey hey #Linux #FileSystem #ZFS #RAID #XFS entities! I'm looking for extremely opinionated discourses on alternatives to ZFS on Linux for slapping together a #JBOD ("Just a Bunch Of Disks", "Just a Buncha Old Disks", "Jesus! Buncha Old Disks!", etc) array.

I like ZFS but the fact that it's not in tree in-kernel is an issue for me. What I need most is reliability and stability (specifically regarding parity) here; integrity is the need. Read/write don't have to be blazingly fast (not that I'm mad about it).

I also have one #proxmox ZFS array where a raw disk image is stored for a #Qemu #VirtualMachine; in the VM, it's formatted to XFS. That "seems" fine in limited testing thus far (and seems fast?, so it does seem like the defaults got the striping correct) but I kind of hate how I have multiple levels of abstraction here.

I don't think there's been any change on the #BTRFS front re: raid-like array stability (I like and use BTRFS for single disk filesystems but) although I would love for that to be different.

I'm open to #LVM, etc, or whatever might help me stay in tree and up to date. Thank you! Boosts appreciated and welcome.

#techPosting

#DailyStandup

So I'm working on upgrading #Parabola's #Ruby. But the ARM build takes forever and so my iteration time on solving problems is slow.

In the course of this I've found some bugs in #Qemu https://fosstodon.org/@lukeshu/113069912188713315 I'm working around them by disabling affected tests if we're running in a qemu chroot. After I get the bew Ruby out, I'll look into fixing the Qemu bugs... but IDK how I'm going to prioritize that against other existing work.

Debug ARM Virtually - With the advent of super powerful desktop computers, many developers make use of s... - https://hackaday.com/2021/04/23/debug-arm-virtually/ #armcortex #qemu #arm