All Questions
Tagged with virtual-machine linux-kvm
115
questions
0
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0
answers
30
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Retrieve hypervisor host/session id from inside guest VM
I have a VMware VM which is quite sensitive. It needs to be scheduled at max. 500 ms or otherwise it will restart itself. In case there is some heavy process in parallel with the VM (e.g live ...
- 1
0
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0
answers
35
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QEMU-KVM VM freezing the host machine when using Nvidia gpu PCI passthrough
I have intel integrated graphics and nvidia 1650 mobile graphics card. I am loading my xorg server only using the integrated GPU. The NVIDIA GPU loads which nvidia driver on boot. I have libvirt hooks ...
1
vote
1
answer
171
views
VirtualBox can't operate in VMX mode
Recently, I tried to use VirtualBox and got this error,
VirtualBox can't operate in VMX root mode.
Please disable the KVM kernel extension, recompile your kernel and reboot.
(VERR_VMX_IN_VMX_ROOT_MODE)...
- 13
0
votes
0
answers
42
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How can I create a VM in virt-manager that can access the internet through the host but can't even see the host or other devices on the LAN?
I want to create a VM for testing purposes -- questionable websites, files that could be infected with a virus, etc.
So I want to create a VM and that VM should be able to access the internet but it ...
- 408
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votes
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answers
35
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same ip range and subnet in 2 different bridges
I am trying to create 2 different virtual networks in the same ip range (not using NAT) in virt manager.Doesn't work with the gui or editing the xml of the new virtual network . Is the best way to ...
- 1
1
vote
0
answers
167
views
AMD GPU pass-through doesn't work on Windows 7 (even though NVIDIA works)
I have a multi-gpu VM setup (Nvidia GTX 970 and AMD RX 6600) with Windows 7, Windows 10, macOS virtual machines. I pass GPU directly to a guest operating system (isolate from host-os and pass them ...
- 180
0
votes
1
answer
3k
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How to Reach QEMU VM's with IP Address (Optionally Static)?
Situation
I have two QEMU KVMs (named master and worker, respectively) running on my laptop. The VMs use the headless server edition of Ubuntu 22.04, and the laptop is running Mint.
Goal
I want three ...
- 101
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756
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Dramatic difference in network performance between multiple KVM virtual machines, accessing a bridged physical interface
I have noticed a very peculiar difference in network speeds for the 3 VMs I have created. For one VM the network works without any issues. For the next the packet loss is between 50 and 100%, usually ...
- 735
0
votes
1
answer
1k
views
How to run qubes os on KVM
Is there a way to get Qubes OS working in KVM, it freezes short after into boot, I tried to boot into new kernel but result is still the same.
4
votes
1
answer
3k
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Can I get more screen resolution options for a QEMU virtualized Windows using a VirtIO graphics card?
When virtualizing e.g. a Windows 10 installation with QEMU and using the default graphics card (with no command line option set), it shows up as a "Microsoft Basic Display Adapter", and one ...
- 165
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402
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Wininet.dll repeatedly causes explorer.exe and dllhost.exe to crash
I am using SUSE's Harvester to run virtual machines (It uses KVM). Using that, I created a virtual machine with a Windows 10 Pro installation (22H2).
Today when I restored the vm from a VM snapshot, ...
- 433
3
votes
0
answers
4k
views
Virsh doesn't list virtual machines
On arch, I set up a number of VMs using virt-manager. My user is part of the libvirt group, and I can access virsh, but virsh list without root access doesn't list the VMs I created:
$ virsh list --...
- 1,472
0
votes
1
answer
7k
views
VirtualBox 6.1x: How enable 'Enable Nested VT-x/AMD-V' to enable 'KVM virtualization'?
Using VirtualBox 6.1.36 - in 2 different laptops with Windows 7 and 10 Home - the guest is Ubuntu Desktop 20.04 - I have the following situation about Docker:
Docker Desktop remains stopped on Ubuntu ...
- 341
2
votes
0
answers
5k
views
KVM guest connected to bridge can only communicate with host
UPDATE:
Changed host from mint to ubuntu now it works fine
I have a linux mint host machine with a network bridge with a static IP Address. Here is the bridge:
I have an Ubuntu guest created in ...
- 121
3
votes
1
answer
11k
views
virt-manager fails to initialize EGL render node for SPICE GL with NVIDIA proprietary drivers
I have virt-manager on a Fedora Workstation 26 host.
I have set up a Virtual Machine with Windows 11 Educational.
I have a Spice display server, with Listen Type set to “None”, and OpenGL set on with ...
- 411
2
votes
0
answers
746
views
libvirt and hotswappable single USB port with virt-manager - almost there?
Description
USB not visible on Debian guest. I cannot see anything obvious from the logs but because I do not have much virtualisation experience I assume I missed a step in the configuration, ...
3
votes
2
answers
806
views
Possible to move a guest OS on VirtManager (Linux) to Windows?
For VirtualBox or VMware Workstation,one could copy the guest OS data directory to another computer and run it there. For example, I could create a guest OS on Linux, and then copy the guest data ...
- 3,984
1
vote
1
answer
4k
views
Unable to load Nvidia drivers in QEMU virtual machine
I have an Ubuntu Server 20.04 LTS on an Alienware Aurora R6 (i7-7700 CPU with a Nvidia GTX 1080). I am relatively new to type-1 hypervisor and have some experience with type-2 (VirtualBox).
On the ...
- 735
2
votes
1
answer
7k
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virt-manager - spice-guest-tools not working on Windows 10 guest
Host: Debian Bullseye
Guest: Windows 10 20H2
Hypervisor Details:
Hypervisor: KVM
Architecture: x86_64
Emulator: /usr/bin/qemu-system-x86_64
Chipset: Q35
Firmware: BIOS
Windows in the VM is running ...
1
vote
0
answers
418
views
Ubuntu running on vmware-kvm with Dual Screens
I'm trying to find a way to use Ubuntu 64-bit on vmware-kvm.exe with dual screens. Ubuntu runs perfectly fine but I can't use my two monitors unless I use VMware workstation player. I've been ...
- 11
0
votes
1
answer
1k
views
Virtual machine Windows 10 unmountable boot volume error
I'm running Windows 10 through KVM and virt-manager. Today, I'm receiving a BSoD along with error:
Unmountable boot volume
Then, the screen shows automatic repair preparation:
Then, a black screen ...
- 270
0
votes
1
answer
859
views
Boot virtual Windows 10 KVM from physical machine
I have a Windows 10 QEMU/KVM setup whose virtual disk is in qcow2 format. I would like to boot my physical machine using this virtual disk. Is it possible to write the content of this virtual disk to ...
- 101
1
vote
0
answers
2k
views
How to make KVM guest stop showing both host and guest mouse cursors as it makes guest very hard to use?
I've created a CentOS 7 (KDE) VM on a Centos 7 KVM server without X or GUI, and there's only one guest on this server. I see two cursors in the virt-manager VM console: the host cursor and the guest ...
- 11
1
vote
1
answer
2k
views
Windows VM on Linux with dedicated GPU and memory
I'm building a new PC. I want windows for gaming and some C++ work targeting the hololens. However, my primary development machine would be linux.
I have 32Gb ram, 2 x 1tb m.2 memory, one 3080 and no ...
- 111
4
votes
1
answer
8k
views
Performance issues with KVM versus Virtualbox
I'm trying to use KVM on Ubuntu (5.8.0-59-generic #66~20.04.1-Ubuntu) and finding some serious performance issues. In order to quantify the problem, I tried a fresh install of Windows 7, both under ...
- 45
1
vote
1
answer
6k
views
QEMU/KVM emulating vmware graphics
I'm trying to migrate to virtual and old physical machine with nvidia GPU.
I've succesfully done it with virtualbox with vmware graphics emulation, worked like charm after some tuning.
On the other ...
- 13
0
votes
1
answer
680
views
VM with VLAN trunk on KVM
what exactly do I need to configure on Ubuntu18-based QEMU/KVM server to pass a trunk with >1 VLANs to a VM on it? (basically the equivalent of setting VLAN ID to 4095 on a port with ESXi) Some ...
- 97
0
votes
1
answer
6k
views
Can't connect to a remote host with virt-manager
I'm trying to connect from a laptop (computer1) to a host (remote1).
On computer1 I have user1 on the host I have a different user (user2).
Both systems are running Debian, the remote1 system is a ...
- 1
1
vote
1
answer
858
views
Why wont Windows 10 Pro shut down with the ACPI power button when screen is locked locally?
We have Windows 10 running under KVM but it won't shut down when it gets an ACPI power button request triggered by virsh shutdown win10 after a user locks the console---however, it will under the ...
- 383
0
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0
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163
views
I can't mount KVM Virtual Disk '.qcow2' from other Linux Live CD to chroot invalid argument
Hi I have Linux CentOS 7 I create it using Virt-Manger , I boot-up and Linux Distro Live CD Tiny-core 9 to experiment with Linux shell and distro modification chroot
I list detected V disks with fdisk ...
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