#Qemu

Robert von Burg :vegan: :tux:eitch@mstdn.gsi.li
2025-11-24

@alex @kdsz_bayern Ich habe lange VirtualBox verwendet und dann mal versucht auf #QEMU zu wechseln, aber erstens gibt es viel mehr Konfigurationsgewirr und zweitens bringe ich die Performance nicht gleich hin wie bei #VirtualBox.

Ich wรผrde gerne lernen wie das besser funktionieren wรผrde.

nickbeardednickbearded
2025-11-23

Getting started with a cool new project: building my own minimalist Linux OS for x86_64 using Buildroot! ๐Ÿ› ๏ธ

Just finished the full cross-compilation with the pc_x86_64_bios_defconfig. The resulting tiny system is up and running in QEMU.

Excited to spend the next few days exploring Buildroot's potential, from custom kernels to package management. Time to dig into the embedded world! ๐Ÿš€

buildroot
2025-11-23

Aprรจs l'autolargue, je propose l'autostart ! #virtualisation avec #NetBSD et #NVMM, tout de suite sur twitch.tv/ahp_nils ! #sysadmin #devops #twitchfr #twitchstreamer #TwitchStreamers #BSD #qemu

2025-11-23

Oh I think I panicked #linux by rebooting the VM I had PCIe Passthrued my GPU, Keyboard, and Mouse (at least I think I did, hard to tell without logs and screen).

#Libvirtd #KVM #QEMU

@evgandr @uastronomer @TomAoki #qemu built with --enable-modules should tolerate missing libraries which was something added to save the distros from having to package too many versions. If you really want the smallest build do a no-defaults build yourself.

Eugene :freebsd: :emacslogo:evgandr@bsd.cafe
2025-11-23

@uastronomer Possibly I disappoint you, but looks like the same situation with almost every binary package distribution. For example, if I try to install #Qemu to the **headless** server running #NetBSD , just to run some other OSes in the console mode, the dependencies bring to me:

- SDL2 and SDL2_image
- flac, giflib, lame, libjpeg-turbo, libogg, libopus, libvorbis, libwebp, mpg123, tiff โ€” like I'm want to operate with images and audio files, not to launch some virtual machines
- spice-server, while I'm not planning to use it.
- wayland and wayland-protocols -- no comments :drgn_sigh:

As @TomAoki stated one time on my ramblings about the same situation in the #FreeBSD world: "many of opensource audio and/or multimedia apps are developed on any of Linux distros, not on *BSD, thus, to minimize mandated works of porters / maintainers / commiters, depending on what upstream depends by default is the only feasible way not to cause toooo long delay from upstream".

I lost link to his toot on the old account, but I have a screenshot: eugene-andrienko.com/assets/st

One way to get rid of unnecessary dependencies โ€” build necessary programs by yourself, looks likeโ€ฆ

drag0n-server# pkgin install qemu
pkg_summary.bz2                                                                                               100% 3935KB  67.8KB/s   00:58    
calculating dependencies...done.

36 packages to install:
  SDL2-2.32.10 SDL2_image-2.6.3nb6 capstone-5.0.6 dtc-1.7.2 fftw-3.3.10nb2 flac-1.5.0nb1 giflib-5.2.2nb1 gmp-6.3.0 hicolor-icon-theme-0.17nb1
  jbigkit-2.1nb1 lame-3.100nb7 lerc-4.0.0 libcbor-0.13.0 libepoll-shim-0.0.20240608 libgcrypt-1.11.2 libgpg-error-1.55 libiscsi-1.19.0
  libjpeg-turbo-3.1.2 libogg-1.3.6 libopus-1.5.2 libsamplerate-0.2.2nb5 libslirp-4.7.0nb2 libsndfile-1.2.2nb2 libssh-0.111nb2 libtasn1-4.20.0
  libusb1-1.0.29 libvorbis-1.3.7 libwebp-1.6.0nb1 libxkbcommon-1.7.0nb6 mpg123-1.33.2 qemu-10.1.0nb1 snappy-1.2.2 spice-server-0.15.2nb1
  tiff-4.7.0nb3 wayland-1.23.0nb7 wayland-protocols-1.45

0 to remove, 0 to refresh, 0 to upgrade, 36 to install
107M to download, 898M of additional disk space will be used

nroceed ? [Y/n]
nickbeardednickbearded
2025-11-22

Booted a custom Linux OS with Buildroot inside QEMU.

Kernel 6.12.47, ext2 rootfs, BusyBox shell, no branding, no splash.

Filesystem mounted cleanly, init runs, system idle at 99%.

Next: network stack + GRUB2 ISO. Minimal, reproducible, silent.

ls -ltop
Miroslav Kraveckravemir@fosstodon.org
2025-11-22

I've experimented a bit with QEMU with a goal to create a sandbox for software development.

Traffic to HTTP(S) sites and SSH works.

But, it is going through a Tinyproxy resolving DNS against Pi-hole. And, it should be the only traffic possible.

Graphical Wayland applications work.

youtu.be/aKRLjVdRWvk

#qemu #sandbox #tinyproxy #pihole #softwareDevelopment #wayland

2025-11-21

QEMU Webcam Passthrough Issue: Detected but showing nothing - Virtual Device Manager #usb #webcam #qemu #virtmanager

askubuntu.com/q/1559962/612

@gregkh we got a bunch raised on the #qemu issue tracker that look like generative AI was involved. They did turn out to be real - although outside of our normal security boundary. I did appreciate they came with reproducers which worked and demonstrated the problem.

These tools do have their uses but we need to keep the slop at bay.

N-gated Hacker Newsngate
2025-11-21

๐Ÿš€ Oh wow, yet another promising to run yesterday's tech on today's devices. ๐Ÿ™„ Just what every user dreams of: a clunky remix of with experimental stutter-reduction for that "authentic" retro gaming experience. ๐ŸŽฎ Good luck getting past the FEXConfig GUI without a degree in computer science. ๐Ÿ˜‚
fex-emu.com/

2025-11-20
Having toyed around for a while in #QEMU #VM boxes with #FreeBSD, #OpenBSD and #NetBSD as well. I found that #gpart in FreeBSD is intuitive and easy to use for disk partition manipulation, followed by gpt in NetBSD. For me, powerful and flexible as fdisk is, it has always been mysteriously difficult and fighting.
#UseBSD #RUNBSD #BSD #FOSS #UNIX
R1 Open Source Projectr1os@bsd.cafe
2025-11-19

Proxmox VE 9.1 released with support for OCI container images, TPM state support in qcow2 format, enhanced control for nested virtualization in specialized VMs, better SDN status reporting

proxmox.com/en/about/company-d

#proxmox #proxmoxve #debian #linux #virtualization #hypervisor #qemu

NERDS.xyz โ€“ Real Tech News for Real Nerdsnerds.xyz@web.brid.gy
2025-11-17
VoidZeroOne :tranarchy_a_genderqueer: :v_trans: :v_pan:TheOneDoc@tech.lgbt
2025-11-17

uups

paste1.app/NtmjL07a

guess I'll have to build the new #chimera-linux raspberry pi Image on an actual pi today
Not crossbuild it on AMD64 as usual

@q66 do you need some kind of error report?

#qemu #amd64 #aarch64 #SIGILL

2025-11-17

@a_blahaj ooooh, tricky question, one i have asked myself a lot over the months.

i am expert at neither, but prolly now have slightly more experience running Kinoite, given i put it on Lappy's SSD some/several months ago [posting from it atm, actually].

#Kinoite
- wins wrt me having solved basically all my needs on it now...
#QEMU โœ…, #Distrobox [incl Arch, damnit, sigh] โœ…, #BackInTime โœ…, #RustDesk โœ…, #Flatpak with User not Root authority โœ…, App Layering โœ…, etc.
- loses in that i can only get its boot menu to offer me two versions, despite me seeing three each time i do
rpm-ostree status -v.

#Kalpa
- wins in that its boot menu offers me several versions, which by definition provides more robust rollback capability IMO; Dev explained to me that layering is not a thing in Kalpa coz ... see his quote below
- loses in that almost every time i have installed it, when i enable Flathub it mandates root permission, ie, i have to install & update all subsequent Flatpaks after giving root permission [iirc one installation correctly made it User not Root, but all the rest "went wrong"].

there is no "layering" on kalpa, but you can absolutely attempt to install your vpn software via 'sudo transactional-update pkg in packagename' if it's in the repos, or 'sudo transactional-update run zypper in whatever.rpm' if you're downloading an rpm from a vendor.

Kalpa isn't image based like KDELinux or Kinoite, you'll be literally installing the rpm into the "immutable root" of the system
Fwiw, back to my KDELinux whinge:
As i was making a coffee, mulling over my least-worst options now [i really really would like to keep it; i have put so much time into familiarising myself with it, & finessing my setup, & overall i have now found various workarounds for almost all the issues that initially troubled me, but the broken videos is almost now a bridge too far], i suddenly began giggling at my silliness. It is an atomic, duh, ergo, its boot menu offers me five versions... so maybe all i need to do is boot back a few days to get good video again? Shall try it later today...
๐Ÿคž

#DropbearPooterising #Linux #LinuxWomen #FOSS
โ€‹:archlinux:โ€‹ โ€‹:kde:โ€‹ โ€‹:plasma:โ€‹ #ArchLinux #KDEPlasma โ€‹:kde:โ€‹ โ€‹:linux:โ€‹ #KDELinux
โ€‹:debian:โ€‹ #SparkyLinux โ€‹:opensuse:โ€‹ #Kalpa โ€‹:fedora:โ€‹ #Kinoite

2025-11-16

C'est l'heure de faire le mรฉnage ! #virtualisation avec #NetBSD et #NVMM, tout de suite sur twitch.tv/ahp_nils ! #sysadmin #devops #twitchfr #twitchstreamer #TwitchStreamers #BSD #qemu

Mais aussi utiliser windows en machine virtuelle... Ou avant, voir si #ReactOS supporte votre application ๐Ÿคทโ€โ™€๏ธ Mais si #libvirt #qemu avait des drivers graphiques, compatibles, ca serait mieux ๐Ÿค” [2/2]

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