Articles about qemu | UserComp.com

Setting up NFS server in QEMU VM on macOS M1 using Vagrant (Alpine+Ubuntu 22.04)

In this tutorial, we will guide you through the process of setting up an NFS server in a QEMU virtual machine running on a macOS M1 host, using Vagrant and Alpine or Ubuntu 22.04 as guest operating systems. This setup will allow you to easily share files between your macOS host and your QEMU virtual machine.

Setting Up NFS on QEMU Vagrant (Alpine & Ubuntu 22.04) on M1 Host

Experiencing issues setting up NFS on QEMU Vagrant with Alpine and Ubuntu 22.04 on an M1 host? Learn how to troubleshoot and resolve common problems in this article. Read more for a comprehensive guide to configuring NFS on your QEMU Vagrant environment.

Issue Accessing Websites on Windows 10 Guest VM using QEMU/KVM

Having trouble accessing websites on a Windows 10 guest virtual machine using QEMU/KVM? Learn about potential solutions and how to diagnose the issue. Read more for expert tech support.

Improving QEMU-i386 Emulation of Subprocesses (execve(2))

This article discusses methods to improve the emulation of subprocesses (execve(2)) in QEMU-i386. The current implementation uses fork(2) + execve(2) natively, but for better emulation, we can modify QEMU to emulate these subprocesses instead.

How to Add a Bridge Interface to an Alpine Docker Image for QEMU VM Networking

Learn how to create a script that adds a necessary network interface to an Alpine Docker image for reaching the host network of a QEMU VM. This article provides a step-by-step guide to optimize your VM networking experience.

Add Bridge Interface to Docker Image for QEMU VM Reachability

This article guides you through the process of adding a bridge interface to a Docker image, enabling seamless connectivity between a QEMU virtual machine and the host network. Learn how to create a script for setting up the necessary network interface in Alpine Docker. Improve your tech support skills with this essential Docker and QEMU networking tutorial.

Passing boot args to kernel in QEMU without append

Learn how to pass boot arguments to the kernel when using QEMU without the append option. This guide covers the process for Linux users.

Creating a Virtual Machine for Android 8.1+ with Compatible ISO for arm64 and QEMU

Having trouble finding a compatible ISO for Android 8.1+ on arm64? This article will guide you through creating a virtual machine using QEMU and an alternative solution for a GSI image for Pixel devices (11-15).

QEMU VM Super Slow: Host Running Heavy CUDA Processes for Machine Learning

If you're experiencing slow QEMU virtual machines while running long-term Machine Learning jobs using CUDA on the host, this tech support article can help. Learn how to optimize your system for seamless operations.

Troubleshooting: No Internet on QEMU VM despite Connection Present

Having trouble connecting to the internet on your QEMU VM despite having a present connection? Learn how to troubleshoot this issue in this tech support article. We'll cover common causes, such as incorrect network configuration and firewall settings, to help you get your Ubuntu Server 24.04 up and running with a connected USB wifi adapter.

Separate ARP Tables for QEMU Guest WiFi in a Virtual LAN

In this tech support article, we will discuss how to create separate ARP tables for QEMU guest WiFi in a virtual LAN. This is useful when you have a physical WiFi device in NAT mode, but you need a guest ARP table to avoid seeing non-unique MAC addresses. Follow these steps to set up separate ARP tables for your QEMU guest WiFi.

Poor I/O Performance with qemu-kvm Native Block Device (Dedicated Disk) in RHEL 9

Users running VM RHEL 9 with qemu-kvm 9.0.0 experience poor I/O performance. This article provides potential solutions based on collected FIO metrics.

How to Recover Corrupted btrfs Data from a VDI File in Linux

Learn how to recover corrupted btrfs data from a VirtualBox VDI file in Linux. This guide will walk you through the process of mounting the VDI file, accessing the corrupted partition, and recovering the data using available tools. Don't lose your important data – follow these steps to get it back.

Check virt-manager with QEMU and KVM

Learn how to use virt-manager with QEMU and KVM for virtualization. Understanding the relationship between KVM and QEMU's hardware acceleration can potentially improve performance.

Speed Up X Server Start in QEMU Non-Accelerated Mode for Linux Virtual Systems

Having trouble booting a virtual Linux system in QEMU without hardware acceleration? With interpreted mode, boot functions are OK, but performance is poor, and you might experience a black screen for up to 7 minutes. This article provides tips to speed up the X server start in non-accelerated mode for your Linux virtual system.

Enabling GPU Passthrough on NixOS Linux Host for Virtual Machine

This article provides a step-by-step guide on how to enable GPU passthrough on a NixOS Linux host running QEMU and Virt-Manager for a NixOS guest virtual machine. The physical machine has two GPUs in separate IOMMU groups and the goal is to assign a powerful GPU to the Linux guest. Make your NixOS host and guest VM ready for GPU passthrough with ease!

Consistent Ping Timestamps in QEMU: A Tech Support Guide

Learn how to ensure consistent ping timestamps in QEMU when using Linux guests on a macOS host. This guide covers using QEMU via UTM and the GUI QEMU frontend.

Failed to Initialize HTTP2 Server on Zephyr OS in QEMU Emulator

In this article, we discuss an issue encountered while running an application on Zephyr OS project with QEMU emulator, where the system boots fine but the HTTP2 server fails to initialize. We provide a brief overview of the problem and invite the audience to read the full article for tech support.

Virt-Manager Created QEMU VMs Break Host Internet via Routes VM

Learn how to fix the issue of host internet connection dropping when starting virtual machines (VMs) created using Virt-Manager and QEMU with NAT networking and Ethernet device. Find solutions to manage and isolate the network connections of VMs and the host system.

Chroot/mnt Failures While Installing GRUB: What to Do?

Having trouble installing a GRUB disk image using QEMU and encountering chroot/mnt failures? Learn how to navigate this issue and successfully configure GRUB.

Unable to Boot QEMU/Libvirt Windows 11 Physical Disk Partition: Error 0xc0000001 - A Guide to Physical Partition Booting

Having trouble booting a physical disk partition in Windows 11 using QEMU/Libvirt? This article provides a step-by-step guide to troubleshooting and resolving Error 0xc0000001, allowing you to reuse your partition for booting. Read more to learn how to boot a physical partition in Windows 11 with QEMU/Libvirt.

Troubleshooting SDDM Black Screen with 'Failed read display number pipe' (Arch ARM QEMU)

This article provides solutions to the issue of a black screen appearing during the SDDM login screen when using Arch Linux ARM with QEMU. The error message 'Failed read display number pipe' is displayed.

Granting Network Access to QEMU in Docker Containers

Learn how to grant network access to QEMU running inside a Docker container by configuring macvlan interface. Communication between containers and the host is essential.

Cloning a Windows Drive with QEMU and Selectively Handling Boot Partition

Learn how to clone a Windows drive using QEMU, while selectively handling the boot partition. This guide will help you clone a 2TB drive with a 100MB boot partition, a 300GB C: drive, and the rest of the space used for games, without cloning the games partition.

Fixing Start Menu Button Issue in Windows 11 VM after Removing Edge

Learn how to resolve the start menu button issue in Windows 11 virtual machine after removing Microsoft Edge. This guide provides step-by-step instructions to get your start menu button working again.

Removing USB Device from QEMU/KVM Virtual Machine without Restart

Learn how to unplug a USB device from a QEMU/KVM virtual machine without the need for a restart. This tutorial provides a step-by-step guide to using the QEMU monitor device_add command without specifying an ID. Keep your virtual machine running smoothly with this simple trick.

Can't Life Get Networking Work with Linux Kernel and Busybox? (QEMU/KVM)

Having trouble getting networking to work with a lab system consisting of Linux kernel and Busybox under QEMU/KVM? This article provides a brief overview of potential solutions to help you get up and running.

How to Share a Directory on Mac with QEMU/UTM Virtual Machine?

In this tech support article, we will provide end-to-end instructions to share a directory on Mac with a QEMU/UTM virtual machine. We will cover the steps to set up a shared directory, including the implementation of a 9p filesystem on the Mac side. Follow our step-by-step guide to enable seamless file sharing between your Mac and QEMU/UTM virtual machine.

Upscaling Video Resolution on QEMU/KVM Virtual Machines for Better Display on Limited Resources

Learn how to upscale video resolution on QEMU/KVM virtual machines to improve display quality even on limited resources. This guide provides step-by-step instructions to optimize your virtual machine setup for a 4K screen.

Enabling VCPU Start in ARM CPU Nested Virtualization with QEMU 9.0.0-rc2

This article introduces the testing of ARM architecture nested virtualization using QEMU 9.0.0-rc2, which simulates an Arm chip and supports VCPU start in ARM v8.4 CPUs. Learn how to enable VCPU start for ARM CPU nested virtualization with this new QEMU version.

Can't Use PipeWire: Failed to Initialize PW Context on Bliss OS QEMU

Having trouble running Bliss OS on QEMU with an error related to PipeWire? Learn how to troubleshoot this issue and get your virtual machine up and running.

Debian Installation Fails with virt-manager: Version 4.1.0 and QEMU 7.0

This article addresses the issue of Debian installation failing when using virt-manager with QEMU 7.0 and version 4.1.0. Users attempting to install Debian Sid VM through the GUI are met with an error during the 'Select Installation Source' step.

KVM/QEMU: Resolving Static IP Address Assignment Issues with TAP Devices

When running operating systems on KVM/QEMU virtual machines using TAP devices for networking, static IP address assignment can cause issues. This article provides solutions to resolve such problems.

Understanding the Difference Between VirtIO and Red Hat QEMU SCSI Disks in virt-manager

In this tech support article, we will explain the difference between using VirtIO and Red Hat QEMU SCSI disks when creating virtual machines with virt-manager. Previously, users have had experience migrating IDEVM disks to VirtIO SCSI, and created a Windows VM with a primary disk setup using virt-manager. Here, we will create a new VM and compare the setup process and performance of VirtIO and Red Hat QEMU SCSI disks.

Resolving File/Drive Issues in KVM Ubuntu Server with Multiple VM's (Windows 11, Ubuntu, etc)

This article outlines the steps to resolve file/drive issues in a KVM Ubuntu Server hosting multiple virtual machines (VMs), including Ubuntu and Windows 11.

QNX Momentics IDE Fails to Connect QEMU Virtual Target (Linux Host)

This article discusses a common issue when setting up a development environment for QNX SDP 8 on a Linux host. The problem occurs when trying to connect a QEMU virtual target after sourcing the QNX env script called 'check-net'. This article provides potential solutions to help resolve the issue.

Custom UEFI Application Boot: Testing with QEMU and GDB