virsh list –all; # show all available vms (if the list is empty check this article) virsh start vmname; # start the vm virsh dominfo vmname; # get info on vm Id: 2 Name: vmname UUID: 84bb8e99-2fb2-499a-9ca1-xxxxxxxxxxxx OS Type: hvm […]
hostnamectl; # tested on Operating System: Debian GNU/Linux 13 (trixie) Kernel: Linux 6.12.74+deb13+1-amd64 Architecture: x86-64 # as non root user virsh uri qemu:///session # as root user su – root virsh uri qemu:///system # Ctrl+D log out root, as non-root […]
copy and paste this into the network config via virt-manager to limit download speeds for this vm to 1024KByte/s: <bandwidth> <inbound average=’1024′ peak=’1024′ burst=’2048’/> <outbound average=’1024′ peak=’2048’/> </bandwidth>
hostnamectl; # tested with Static hostname: workstation Operating System: Debian GNU/Linux 13 (trixie) Kernel: Linux 6.12.30-amd64 Architecture: x86-64 Hardware Model: Gigabyte B550 Aorus Elite AX V2 rev-1 Socket AM4 # gpu used nvidia RTX 5060 Ti 16GByte the idea start […]
virt-manager –version 5.0.0 kvm –version QEMU emulator version 9.2.93 (Debian 1:10.0.0~rc3+ds-2) Copyright (c) 2003-2025 Fabrice Bellard and the QEMU Project developers which kvm /usr/bin/kvm /usr/bin/kvm -> qemu-system-x86_64 /usr/bin/qemu-system-x86_64 –version QEMU emulator version 9.2.93 (Debian 1:10.0.0~rc3+ds-2) Copyright (c) 2003-2025 Fabrice Bellard […]
it’s still possible to use inernal snapshots btw Dear OpenSource and other communities, [+] virt-manager is a neat tool to manage virtual machines without having to go thorugh pains such as: # delete remove vmname (cleanly) # including its storage […]
yes PHP is a serious language, it is (often) even faster than Python 😀 but this is also very good Python news: Python code now running on GPUs? wow that must give the most massive speed ever! 😀 sharing is […]
if virsh (terminal) created snapshots do not show up in virt-manager, try the refresh button at the bottom good luck all involved related links: https://dwaves.de/2021/08/12/gnu-linux-how-to-kvm-qemu-start-clone-multiple-disks-snapshot-restore-revert-delete-shutdown-all-vms-start-all-vms-with-keyword-in-name-snapshot-all-vms-add-remove-disks/ https://dwaves.de/2020/12/05/gnu-linux-debian-10-11-how-to-install-kvm-virtualization-qemu-basic-virsh-commands-kvm-cheat-sheed-howto-workaround-virt-manager-emulator-may-not-have-search-permissions-for-the-path/
Hetzner is already doing it with very energy efficient Ampere ARM servers delivering world-class-cost-and-energy-saving-virtual-servers. (Gigabyte has them as well UNTESTED!) #SuperCharge #IT processes with #OpenSource + #GNU #Linux (call it #GNU #Linux and give the dude that wrote gcc some […]
Yes… … well… YESSS finally it works! BUT! IT’S VERY BUGGY! programs crash now and then… so it’s not “production” ready. … the foxlet approach worked 😀 (also got stuck in the last minute of setup of mojave… but after […]
snapshots are stored inside the qcow2 harddisk file of the vm, which is good in terms of “simple”, just one file, where in virtualbox there is the disk.vdi and snapshots are stored in a separate folder as separate files. when […]
update: 2024-04: system running well fastest AMD with integrated GPU would be: Ryzen 7 8700G (search bundle on ebay) the Ryzen 7 has more cores, so single core wise the CPUs are close to each other, multicore the 7 should […]
Even managed to run this system ONLY with SOLAR POWER from March to November (but not winter X-D) Of course RISC(V/ARM) based (mobile) gaming systems would be those that use the least amount of power per frame 😀 But it […]
virt-manager Links: run search: https://dwaves.de/?s=kvm GNU Linux Debian 10/11/Ubuntu – how to install kvm virtualization (qemu) – basic virsh commands – kvm cheat sheed – howto workaround virt-manager “emulator may not have search permissions for the path”
# if the user wants to be converted from VirtualBox to kvm # 1. first clone the VirtualBox vm into a new vm (to consolidate all snapshots into one vdi # 2. convert file format # convert qcow2 to vdi […]
it is actually like this, in virt-manager, that chipset and bios can only be changed during first setup “begin installation” it then is fixed and can not be changed in virt-manager
update: 2026-03 another test esxi v8 + EPYC CPU no luck yet 🙁 (… esxi complains about AMD-V Implementation “Failed to power on virtual machine debian13. This host supports AMD-V, but the AMD-V implementation is incompatible with VMware ESX”) hostnamectl; […]
first off the praise: kvm-qemu is a high performance nicely scriptable virtualization system if it works, it can do pretty things 🙂 IN CONTRAST TO iESXI SH** WARE CLONING A VM IS A EASY AS: virt-clone –original debian12 –name debian12-clone […]
update: workaround X-D ssh tunnel the port from host to vm: ssh -g -L 139:localhost:139 user@192.168.122.162 this would open local port 139 and forward it to port 139 of vm 192.168.122.162 # from host test if mounting the vm’s samba […]
how to setup kvm on Debian: hostnamectl; # tested on Static hostname: lenovo Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-17-amd64 Architecture: x86-64 hostnamectl; # also on Operating System: Debian GNU/Linux 12 (bookworm) Kernel: Linux 6.1.0-17-amd64 hostnamectl; # also […]
“thin provisioning” means “virtually” allocate more harddisk space, than the harddisk (physically) has, then grow the virtual harddisk file according to it’s needs (store more files = size of harddisk.img grows dynamically) # debian 10; # tested via bash terminal: […]
hostnamectl; # tested on Static hostname: giada Icon name: computer-desktop Chassis: desktop Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-17-amd64 Architecture: x86-64 su – root apt update # will install Java Web Start and openjdk-11-jre apt install icedtea-netx java-common […]
so RedHat developed the virsh manager, but not qemu itself. https://stackoverflow.com/questions/43704856/what-are-the-differences-between-qemu-and-virtualbox QEMU is a generic and open source machine emulator and virtualizer. When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an […]
BACKGROUND INFO: how does kvm use qemu? KVM (Kernel-based Virtual Machine) is a virtualization solution for Linux on x86 hardware. It allows running multiple virtual machines (VMs) on a GNU Linux host by leveraging hardware virtualization extensions such as Intel […]
got the server cheap from ebay. has unfortunately only 4x 2.5″ SAS (3.5″ would be better = more storage) one SAS drive already faulty. using the native Hardware RAID10 (4x 75GByte Hitachi HGST Ultrastar C10K600 450GB (HUC106045CSS600) 2,5″ SAS2 64MB […]
(IPMI) https://en.wikipedia.org/wiki/Intelligent_Platform_Management_Interface IPMI is a series of specifications that provide standardized interfaces to the so-called “platform management” services. (src) ((BMC) Baseboard Management Controller) https://de.wikipedia.org/wiki/Baseboard_Management_Controller allows you to see the screen of your server via a simple java enhanced webbrowser – […]
as addressed here, kvm allows GPU pass through to VM. Basically making it possible to run Sidexis4 client on a linux host. when connecting via RDP (Microsoft Remote Desktop) Sidexis complains about the Graphic card being not suitable… but starts […]
newer version tutorial howto: Gaming inside GNU Linux Debian 13 via windows-vm? how to get NVIDIA GPU pci-pass-through to kvm vm work pci pass through nic and other hardware directly to vm? theoretically possible, but it’s pretty hard to setup […]