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Questions tagged [qemu]

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

QEMU supports the emulation of various architectures, including IA-32 (x86) PCs, x86-64 PCs, MIPS R4000, Sun's SPARC sun4m, Sun's SPARC sun4u, ARM development boards (Integrator/CP and Versatile/PB), SH4 SHIX board, PowerPC (PReP and Power Macintosh), ETRAX CRIS and MicroBlaze architectures.

The QEMU homepage provides a complete list of supported architectures.

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600 questions
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How to quit the QEMU monitor when not using a GUI?

I'm running QEMU on Linux without GUI. After running starting my custom kernel with QEMU, I can't kill and return to host by pressing Ctrl+C. Is there any way to get back to host OS?
triple fault
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12 answers

How to increase the visualized screen resolution on QEMU / KVM?

I have a 64 bit Ubuntu 9.10 workstation with two virtualized guest OSes using KVM/QEMU. Also both 64-bit. One is Fedora 12 the other is beta of Ubuntu 10.04. The problem is that I would like to use a larger size display that is configured by…
Jim Reineri
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47
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5 answers

Is it possible to resize a QEMU disk image?

If possible, what happens to the partitions within it? Are they automatically resized as well (doubtful), or is there just a new block of unused space following them?
Richie Marquez
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35
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1 answer

What is the difference and relationship between kvm, virt-manager, qemu and libvirt?

I investigated this topic and here are my conclusions (But I still have questions. And please correct me if I made any mistake in my conclusions): VMWare: VMWare developed its VM Hypervisor SW in 1999, but it was proprietary. QEMU: 4 years later…
Columbia Rover
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32
votes
3 answers

libvirt: "Failed to initialize a valid firewall backend"

I'm trying to set up a virtual NAT network device without DHCP for libvirt on an Arch Linux host. What I have tried: # virsh net-define network.xml Network default defined from network.xml [network.xml]: default
testandby
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4 answers

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 I select it. How would I make it work? (I…
McEnroe
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22
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2 answers

Running virtual linux using qemu on windows

I am trying to use Qemu 1.3 for windows to run lubuntu on a USB stick with Windows 7. After downloading and unpacking Qemu on my usb stick, if I click on qemu.io.exe, I get qemu-io.exe> How do I start my downloaded linux .iso file? It sounds basic…
user1592380
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22
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7 answers

No Auto Resize with SPICE and virt-manager

I've setup a VM that works great except for the auto resize functionality which seems to be inconsistent. I've got it randomly working a few times but it also randomly stops working. It's currently not working and I'm not sure what I need to do to…
howdoieven
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21
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2 answers

How to share a directory with the host without networking in QEMU?

My problem is that networking devices in my device tree are not very stable so I thought the best way to share a folder between qemu and the host system is mount the same img without cache on both sides but the -hda option on qemu does not make the…
fakedrake
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19
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4 answers

How do I convert an .img file to vhd?

I have an image file (linux based image) and want to convert it to VHD so that it can be used to create hyper-V VMs. I used "qemu-img convert" to convert raw to vpc format, but vpc doesnt work for hyper-V and vhd is not supported by "qemu-img…
user1060517
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18
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2 answers

qemu: Set or force higher screen resolution than 640x480

I set up a virtual machine using qemu-system-arm (ARM emulation) running Debian squeeze. Now I have the problem that in the "Monitors" preferences, I can only select 640x480 as resolution. Tried all different -vga options (cirrus, std, vmware) with…
AndiDog
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2 answers

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 though, because the command is run using sudo and I…
xiaq
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17
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1 answer

Do I need both the QEMU Agent and SPICE Agent installed in Windows 10 guest?

I have a Windows 10 VM set up on my Ubuntu 16.04.3 LTS laptop. Overall the experience has been good -- even to the point of having multiple displays configured for the guest. I started by installed the QEMU Guest Agent found…
Corey S.
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2 answers

How do I get AVX support in QEMU?

I want to play with the new AVX instructions. I saw that QEMU might have support, so I built it from Git (yesterday). I set the CPU to SandyBridge and I booted Tiny Core Linux. TCL has kernel 3.0 and Wikipedia claims Linux got AVX support in 2.6.30.…
Janus Troelsen
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13
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1 answer

Unable to configure qemu on Ubuntu 14.04

I'm trying to configure QEMU on Ubuntu 14.04 (x64): $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty configure dies with the error message: ERROR:…
jww
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