QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that performs hardware virtualization.

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How do I get my mouse back from qemu/kvm?

I'm running qemu/kvm on Debian testing x64 with this command: kvm -m 1024 -hda win7.img -cdrom win7x86.iso -boot d -net user but when I click inside the virtual machine, qemu captures my mouse and ...
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123 views

Xen VNC - VGABIOS Rom Missing

I've had a Xen server with VNC running successfully for almost a year now. However, recently, when I tried to connect to an HVM domain with VNC, it displays a blank screen. When I looked in the QEMU ...
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457 views

Qemu: No file system could mount root (unable to mount roofs)

In Linux, I've created the root file system (rootfs) by following commands: dd if=/dev/zero of=ramdisk.img bs=1M count=4 mkfs.ext2 ramdisk.img sudo mount -o loop ramdisk.img rootfs sudo cp init ...
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280 views

Mouse and keyboard not working in qemu emulation of beagleboard with latest angstrom image

I was trying to emulate an angstrom image for beaglexm in qemu on my Ubuntu 12.04 laptop. In a new window the image boots up and autologins into GNOME shell. But keyboard and mouse remains ...
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1answer
1k views

Qemu Arm how to passthrough a PCI Card

I'm trying to access a PCI wifi adapter on a Qemu, simulating vexpress-a9 board. I'm following is this tutorial which shares a passthrough PCI card of the host machine to a guest machine running on ...
0
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1answer
644 views

QEMU package not available for RHEL 64 bit

I am installing QEMU in RHEL. In 32 bit OS (i686 architecture), if I run the command, yum install qemu, the installation of QEMU takes place. However, in 64 bit architecture (x86_64), if I run the ...
2
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1answer
191 views

QEMU for ARM programs with GDB [closed]

I want to emulate an ARM processor for running the assembly programs using QEMU in RHEL. I have installed QEMU but I still have problems in running the assembly program. I got the assembly program, ...
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1answer
81 views

How to reach only an application in QEMU emulation without X?

I run an OpenBSD guest on an OpenBSD host (Desktop) with QEMU. Because I want to run a webbrowser in a separated environment. I can reach the QEMU machine via ssh -X so I can see the webbrowser. But ...
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1answer
332 views

Installation of QEMU, GCC for ARM in RHEL

We are setting up a lab which has the QEMU system to emulate an ARM processor and run assembly programs. The lab is currently setup with the host operating system as Ubuntu. We are migrating the lab ...
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1answer
130 views

Using qemu to boot OpenSUSE (or any other OS) with custom kernel

I want to run OpenSUSE as guest with a custom kernel image which is on my host machine. I'm trying: $ qemu-system-x86_64 -hda opensuse.img -m 512 -kernel \ ...
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2answers
980 views

shared LVM storage between KVM virtuals

I'm messing around with KVM and different storage options for sharing between virtual machines. I have an LVM volume group defined as a storage pool for libvirt. I've defined a volume and attached it ...
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3answers
519 views

How can I get kqemu or even just qemu to show up in virsh capabilities on CentOS 6.4?

I have a CentOS 6.4 box that I'm trying to set up a VM on to run WinXP. This box doesn't have VT, which may not be ideal, but I'll settle for less than ideal. Apparently I should be able to install ...
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0answers
138 views

Getty not starting in qemu

I'm trying to get running an ARM based Debian inside qemu. As a rootfs I'm using structure from embeddedarm 2gb sdcard image with versatile 2.6.24 kernel downloaded from fedora qemu tutorial site. At ...
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0answers
88 views

No network interface for the lan9118 emulated on QEMU 1.4.0 overo machine

Im using QEMU 1.4.0 Ubuntu 13.04 distribution. Im trying to make the virtrual machine part of the host network so Im ussing this command: sudo qemu-system-arm -M overo -m 1024 -sd ./test.img -clock ...
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1answer
359 views

How can I figure out which pty's are from which qemu?

I'm running qemu's like this: $ sudo qemu -boot d -m 1024 \ -netdev tap,id=tap0 \ -device virtio-net-pci,netdev=tap0,id=vth0 \ -drive file=ubuntu.iso,media=cdrom,cache=none,if=ide \ -monitor pty \ ...
4
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1answer
421 views

Emulate unplugging a network cable with qemu-kvm

[Background: I'd like to actually test How to take down a static network interface when not connected? ] I'm setting up a QEMU-KVM virtual machine using libvirt (via virt-manager). I put two NICs on ...
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0answers
121 views

omap3530/3630 emulation on QEMU for overo and beagle machines

On QEMU's source code for beagle and overo I can see that the cpu emulated is the OMAP3430. I will like to know if it's a way to make QEMU emulate OMAP3530/3630 cpu's for those machines? On bealge : ...
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3answers
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QEMU how to ping host network?

I'm trying to ping from guest to my host network without success. qemu-system-x86_64 -hda debian_squeeze_amd64_standard.qcow2 -netdev user,id=user.0 -device e1000,netdev=user.0 I try to ping a ...
2
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2answers
571 views

ttyO ports do not have the good port address on QEMU 1.4.0 running image for beagleboard-xm

I'm running an Linux Image (kernel 3.2.8) for beagleboard-xm on QEMU's 1.4.0 emulator Ubuntu distribution for 13.04. My image is created using Buildroot beagle_defconfig. I added some pkgs to be able ...
2
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1answer
53 views

Theoretical possibilities for cpu emulation built into boot-loader or kernel?

Is it a crazy idea to somehow make a blend of grub and qemu in order to boot linux kernels or any kernel of any cpu type supported by qemu or the built-in cpu? I know it might be impossible to detach ...
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1answer
301 views

What are the right settings for Ubuntu Touch under qemu?

As you can see here, Canonical is releasing the images for Ubuntu touch, the problem is that apparently those are snapshots from a complete installation, there is no installer here and no vmlinuz + ...
3
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1answer
311 views

Booting grub legacy via qemu using pxe

I have been trying to boot grub legacy via qemu using pxe. For some reason, the grub does not display the menu and enters into the command mode after displaying the following error. Error15: File not ...
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3answers
337 views

NFS server on qemu guest

I need to know how I can mount block devices, placed on a qemu guest system, from host. So in this case we have NFS server placed on guest system and NFS client on the host's side. There are a lot ...
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1answer
1k views

Networking and Samba from a quest OS running on qemu

I'm trying to test some software on a big endian system to ensure compatibility. My plan is to use qemu on Ubuntu 12.04 to emulate a MIPS system. So far I've been able to create the quest system ...
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1answer
139 views

QEMU Direct Access to Video Card (or, QEMU Video Output without X11)

I have a system that boots up into Linux at power on and then needs to boot into Windows XP Embedded. After messing around with kexec and grub4dos, things aren't working out too well. One idea that ...
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1answer
86 views

How much success can I expect with Qemu On PowerPC Linux?

I'm on Ubuntu 12.04 for PowerPC and I installed Qemu just for kicks, having experience using it in the past to build an iso for an arm tablet, and upon doing a search I found this installed on my ...
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2answers
742 views

Iptables port forwarding to qemu vm

Is it possible to create an IPtables rule that forwards all incoming traffic on port 80 on the host to port 80 of the qemu VM? Is such a scenario possible with qemu?
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20 views

Preparing an initrd for qemu [duplicate]

I have compiled a bzImage but when I try to run it in qemu I get a kernel panic because I don't have an initrd file. So I create one by following the steps in this question but I cannot get it to ...
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2answers
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Linux kernel is not finding the initrd correctly

I had compiled a linux kernel and I wanted to debug it in QEMU. I created a file to boot from by doing the commands $ qemu-img create -f raw disk.img 200M $ mkfs.ext2 -F disk.img # mkdir /mnt/rootfs ...
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2answers
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Installing qemu-img on ubuntu 11.04

I am developing a linux kernel and I am trying to to debug it in QEMU. I want to be able to run it in QEMU but it stops because I do not have a virtual hard drive to boot it(using the -hda command). I ...
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1answer
1k views

How do you mount an ext2 formatted qemu disk image?

I am having issues mounting an image I created with the qemu-img program. Every time I attempt to invoke mount upon the subsequent file, it responds with failed to setup loop device: No such file or ...
4
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1answer
2k views

Kernel and QEMU : Unable to mount root fs error

I am trying to run a distro in the virtual disk image with a custom kernel,so that I can experiment and debug the kernel. I followed this to make a disk image and then install Debian to it. Now I ...
2
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1answer
865 views

Debugging Linux Kernel with QEMU

I was trying to study the debugging of kernel using QEMU. I tried initially and failed due to the fact that there was no virtual file system. The answers to this post suggests that there should be a ...
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2answers
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How can I restore default window size in KVM/QEMU

In KVM/QEMU machine window size by default matches guest OS resolution. But if I resize windows (accidently) how to restore default size?
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118 views

Creating a Virtual filesystem to boot linux

I am trying to boot the linux kernel (bzImage) in QEMU but have had issues. After asking on U&L I found out that my problem was that I was booting the kernel without a filesystem to boot from. So ...
4
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1answer
2k views

qemu - two clients (tap0 & tap1) via br0 can't ping eachother but server pings ok

I've got: A host system running Ubuntu with KVM (functional) Two clients, one Ubuntu and one Windows 7, nothing fancy. I've also setup (see below) a bridge via br0 for the clients: br0: ...
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4answers
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How do I send a shutdown event to a QEMU guest (OpenBSD)?

I'm using virtualisation solely to install OpenBSD onto the bare hardware, and during the installation, the redirection to the serial port didn't get configured, so, I ended up with the system ...
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1answer
149 views

darkstat shown blocked traffic

I've installed Darkstat on a Qemu VM which is connected to a bridge interface on top of main server's interface ( eth0 ) In Darkstat report I can see many hosts in the same IP range of specified VMs ...
2
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1answer
500 views

Can QEMU/KVM+OCFS2 be configured to punch holes in sparse image files when files are deleted in the guest?

I'm using sparse raw image files for guest VMs and OCFS2 on the host (local-only, not clustered) for the reflink feature. I understand from Googling around that OCFS2 is one of the filesystems that ...
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1answer
2k views

booting qemu/kvm directly from a file system

Having used Xen and its pygrub for a while, I'm now trying to do something similar with KVM/qemu. Basically, I have a LVM logical volume (though that could as well be a file) that contains the root ...
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2answers
8k views

How to boot EFI kernel using QEMU (kvm)?

Hey guys I'm trying to emulate a EFI enviroment using QEMU (kmv), virtualbox takes 15 minutes to boot in EFI mode using archboot. Using legacy BIOS mode I can boot using this command: ...
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2answers
1k views

Running Linux kernel in Virtualbox

I just built a Linux kernel on Ubuntu and now I want to make it run on VirtualBox. I wanted it to be in an img format. I created a hard drive image by doing the commands: $ qemu-img create disk.img ...
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1answer
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Running bzImage in QEMU

I compiled the kernel by doing make menuconfig and make. I was trying to run the bzImage in qemu, by doing qemu -kernel bzImage but it didn't work out: How can I fix it? How can I run the bzImage ...
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1answer
2k views

Load Linux bzImage in QEMU?

I compiled a Linux by doing make menuconfig then make and now I have compiled the most recent version of Linux. How can I load the kernel into QEMU?
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0answers
193 views

Socksifying a qemu-kvm using tsocks

I'm trying to socksify a qemu-kvm using tsocks, but I have no success. I don't know if qemu access directly the hardware, skipping the OS or something like that, but I wasn't able to do this feat. ...
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1answer
842 views

how to use qemu to run build root linux images?

I have compiled an embedded linux with build root for i386. I didn't edited much, just defaults. Now I want to run it under qemu. But the only thing I see is this: I'm running qemu with these ...
10
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4answers
11k views

How can I chroot into a filesystem with a different architechture?

I'm trying to chroot into a Arch Linux ARM filesystem from x86_64. I've seen that it's possible to do using static qemu by copying the binary into the chroot system: $ cp /usr/bin/qemu-arm ...
2
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0answers
659 views

Qemu doesn't boot kernel after “Uncompressing Linux… done, booting the kernel. ”

I've compiled qemu for s5pc110 (it's from http://gitorious.org/samsung-linux-platform/qemu, somebody had added support for s5pc110), version 0.12. But when I load the kernel: qemu-system-arm -M ...
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2answers
2k views

Compiling FreeRTOS on ubuntu

How could I compile the FreeRTOS Source Code and run it (possibly on qemu) on Ubuntu 11.04?
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3answers
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How do I boot from a liveusb using qemu-kvm?

I am trying to get qemu-kvm to boot from my live usb stick. Is this possible?