QEMU (short for "Quick EMUlator") is an open source machine emulator and virtualizer.

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Why can't Windows 7 see my virtual storage devices in KVM?

I'm trying to install Windows 7 inside of kvm on Ubuntu 10.04. Previously I've installed guest Windows XP and guest Ubuntu without incident. However, when I tried to install Windows 7, this happened: ...
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1answer
909 views

Qemu & VNC - how to use absolute pointing device

I'm using QEMU with VNC for display running a Windows XP guest OS. When I connect with a VNC client, the mouse pointer position is pretty badly correlated to where my real mouse pointer is. Is there ...
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2answers
2k views

Can the ARM build of ubuntu 11.04 run in Qemu (on Ubuntu 11.04 amd64)?

Is it possible to run the ARM image of ubuntu-11.04-preinstalled-netbook-armel+omap4 in qemu? (Also used on the Pandaboard) I have extracted the vmlinuz-2.6.38-1208-omap4 doing the following: fdisk ...
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1answer
3k views

How to boot a physical Windows partition with qemu?

I have gentoo and windows 7 installed alongside on my only hard drive. I want to start my windows install from within gentoo through qemu. Boot menu works fine but windows bluescreens on me soon after ...
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Using VNC client to access local QEMU VM

I have installed Debian in a QEMU VM and am currently using the default QEMU Manager as the main display, since QEMU allows VNC as the main display. I have a VNC client installed on my PC; can I view ...
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2answers
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qemu - fastest user-mode emulation platform?

I'm planning to run Linux under user-mode qemu but don't know which platform (eg x86, ppc etc) is the best to pick (performance wise). The host is Linux x86-64 running in OpenVZ (so can't modify ...
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Full hardware emulation

I want to emulate some old desktop PC in order to run my application there (the emulated machine) as a stress test. Is this possible? I looked around and some people mentioned Qemu, which is Open ...
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3k views

How to convert a VirtualBox virtual machine to QEMUwto image?

How do I convert a VirtualBox virtual machine to a QEMUwto image?
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How to boot dd image in QEMU?

I created an image of my Debian Squeeze running on a Sheevaplug using dd if=/dev/sda of=plug_SD-karte.img (sda is the SD card plugged into another computer). Now I want to emulate the Sheevaplug. I ...
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1answer
4k views

How to access internet from QEMU?

I am running qemu version 0.13 on windows XP. My Host OS is Windows XP and my guest OS is Debian 4(Etch). How do I connect to internet from Debian OS? My windows OS can connect to Internet. The ...
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441 views

Drive not recognized by linux when launched from qemu

I'm attempting to boot a linux kernel, ramdisk, and a drive using qemu: qemu -initrd ramdisk.cpio.gz -kernel mylinux.i686 -m 1024 -append console=ttyS0,38400 -serial file:serial.out -hdd raw.img ...
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How crazy is “sudo qemu -hda /dev/sda”(mounting host's sda as client's hda)?

I was playing with qemu on Linux when I discovered that I could just run sudo qemu -hda /dev/sda And it would boot up my system again! I closed qemu immediately after Grub was loaded successfully ...
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1answer
699 views

Write qemu booting virtual machine output to a file

I've been trying out qemu to play around with some VMs. It's working well but I keep wanting to be able to view the text (linux boot process) that quickly scrolls by in the qemu window on startup of ...
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1answer
1k views

KVM and libvirt: How to configure a new disc device to an existing VM?

I've got an Ubuntu 9.04 server running two VM's. In /etc/libvirt/qemu/machine1.xml two disk devices are defined like this: <devices> <emulator>/usr/bin/kvm</emulator> <disk ...
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Networked Parallel Port in Linux / KVM / QEMU

What I want to use is the "-parallel" tcp or udp option from KVM / QEMU, but I don't seem to find any server for this client. I don't serve a printer but a hardware dongle. I checked ser2net, which ...
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1answer
2k views

How to use qcow2 disk image in Linux?

I have a large qcow2 formatted disk image, which I use as storage. Often I need to move data to and from this disk image. I mount the disk using the qemu-nbd tool as follows: modprobe nbd max_part=63 ...
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1answer
899 views

open a console on a virtual machine

I have a KVM Virtual machine running, I can see that using "ps aux | grep kvm". What I need to open a console into that VM. How do I do that?
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Where can one download PartEdit a partition listing tool for Microsoft OSes?

There are many references to this tool, which seems to be an advanced fdisk-like utility for microsoft OSes, available from Microsoft. But searching support.microsoft.com provides now download! ...
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debian installation without internet connection

I want to install some Debian distributions (Grip, Crush, Lenny...) for arm / armel architectures. www.emdebian.org/ I'm referring to this guide: http://www.aurel32.net/info/debian_arm_qemu.PHP ...
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5answers
654 views

How does it hurt to use Linux (Ubuntu) as a guest OS for all my tasks?

I have a machine running Windows, where the disk has two partitions C (50 GB) and D (250GB). I do research in Information Retrieval and need to work with a large corpus (more than 50 GB) and in ...
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3answers
348 views

Make a bootable cd from a floppy

I have followed this tutorial http://wiki.osdev.org/Bare_bones to build a simple C kernel and boot it successfully. But, how to convert the floppy image to CD image to use it with my real PC?
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Trying to run QEMU with a file as hda

I'm trying to run QEMU and use a simple file on the host system as the guest's hard drive. Here's what I attempted so far: $ dd if=/dev/zero of=/home/felix/vm/archlinux.img bs=1MB count=8192 8192+0 ...
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4answers
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Qemu in an ssh session or the quest for the nographic option?

I ssh to a machine and I would like to start a qemu session inside this ssh session. I thought that the nographic option would do the trick. -nographic Normally, QEMU uses SDL to display the ...
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2answers
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What emulator / VM software can I use to create a Win32-portable Linux Guest?

I want to create a portable VM setup so that I can boot a Linux install regardless of which Windows XP / Windows 7 host machine I am on. I was looking at Qemu but it doesn't appear to have a ...
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1answer
1k views

How To Change The Floppy Image Of Qemu?

I'm developing my own OS, but I'm having some problems with Qemu, because I need to change the floppy image from grub.img to os.img while the emulation is running, but how can I do this?
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GDB breakpoint problems attaching to QEMU

I have the following problem: When I connect gdb to qemu for debugging, it won't break on breakpoints. I can set breakpoints, break with ctrl+c etc. Any clues how this can be fixed? I have: $ qemu ...
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5answers
14k views

Windows 7 fails to install on KVM with qemu

I'm trying to install Windows 7 on a virtual machine on my 64 bit Ubuntu Karmic box. I get to the point of selecting my language settings and clicking 'install now', but a short while later I get a ...
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2answers
16k views

Is it possible to resize a QEMU disk image?

Like the title says: Is it possible to resize a QEMU disk image in Linux? And if so, what happens to the partitions within it? Are they automatically resized as well (doubtful) or is there just a new ...