All Questions
25
questions
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
views
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
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
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
748
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
807
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
0
votes
1
answer
860
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
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
5
votes
0
answers
1k
views
Installing Windows virtualization features within KVM virtual machine causes early-boot guest crash
See updates below for what I've discovered about the more general nature of this problem.
I have a Windows VM running OVMF firmware with VFIO passthrough for a graphics card running on an Arch Linux ...
- 171
2
votes
1
answer
4k
views
Are hardware drivers needed to be installed on the management OS of a type 1 hypervisor?
Type 2 hypervisors such as VMware Workstation run virtual machines on top of a host OS. Only the the host needs hardware drivers, while the guests do not as they are running on virtual hardware.
On ...
- 1,176
2
votes
2
answers
3k
views
Emulating IDE in KVM in Debian 10
We have an old rack server with Windows Server 2008 (not R2)
Our goal is to virtualize it and move into new hardware.
The new PC has a Debian10 as a main OS with KVM enabled.
I have used disk2vhd (...
- 23
1
vote
0
answers
360
views
Pass through ACPI devices in KVM
Is there a way to pass through ACPI devices to a KVM guest? I'm trying to create a debugging environment for an ACPI device.
- 11
1
vote
0
answers
374
views
How to disable buffering for a LVM partition under QEMU KVM
I'm using Windows 10 under QEMU KVM on a Fedora 27 box. Disk for a VM is attached as a raw LVM partition with cache=none.
<disk type='block' device='disk' >
<driver name='qemu' type='raw'...
- 206
1
vote
1
answer
13k
views
KVM/QEMU: Hardware acceleration not working
I was trying to install my first virtual machine with KVM and QEMU but it does seem to use hardware acceleration as intended. I came to that conclusion first because it is terribly slow and second ...
- 313
1
vote
1
answer
474
views
volume deleted from kvm, but not reflected in centos guest
I assigned some volumes to my VM on kvm.
Now I want to remove those volumes.
I used virsh vol-delete command and deleted those volumes.
Still from the guest side, can see those volumes!!!.
lsblk, ...
- 13
1
vote
1
answer
534
views
Can hardware be used directly by both host and guest?
I am about to start experimenting with VT-d/PCI passthrough on my new coming-soon hardware known to support it, and wondering if it will be possible to use say video/audio hardware by both host and ...
- 811
1
vote
2
answers
3k
views
KVM PCI passthrough, driver installed but it won't output anything
I have a Windows 10 guest VM running on qemu-kvm, with a GTX 970 card passed through to it, using vfio-pci. I can start the VM fine and connect to it through VNC, install the nvidia driver, it detects ...
- 468
2
votes
2
answers
4k
views
Qemu: Is it possible to have BOTH the virtual display and VGA passthrough in a Windows guest?
This guy implies that it's possible to have both the virtual display and a VGA passthrough display device active at the same time..
I've tried this, both with libvirt and with the qemu commandline. ...
- 300
1
vote
1
answer
2k
views
Can KVM run on top of host OS?
I was interested in experimenting with Xen until I discovered that it has to be installed bare metal. Hence, if I have a Linux machine and want to use it to run a Xen hypervisor, I have to install the ...
- 611
0
votes
2
answers
404
views
(Virtual Machine) KVM/QEMU Distributed Resources
How do large VM hosting establishments offer Terabytes of RAM?
Do they just use really large SWAP files? (over a Network FS of some type)?
Or is it that they really have hosts/machines/computers ...
6
votes
1
answer
2k
views
What's the diffrence between snapshot-create and snapshot-create-as in virsh kvm?
On my virtualization system there are some VMs. One of them was aimed for testing some services on it. So in this case I need to have the first state of that VM.
I searched for a solution found the ...
- 445
0
votes
1
answer
1k
views
Networking Issue with libvirt (kvm)
I'm running a desktop class computer tower with Ubuntu Server 13.04 (64-bit) installed. The server is configured with libvirt, and I use virt-manager to control and configure the VMs as well as virsh....
- 183
4
votes
5
answers
63k
views
virt-manager kvm modules are not available
Fedora 16 latest updates running on a HP Mini 210 with an Intel(R) Atom(TM) CPU N550 @ 1.50GHz.
sudo yum groupinstall Virtualization
Only installed virt-viewer
sudo yum groupinstall Virtualization ...
- 3,135
1
vote
1
answer
252
views
PCI-X card controlled by VM
I have a PCI-X card which I would like to assign to one of my VM guests.
I am using Ubuntu 10.10, with libvirt and kvm.
Is there any way, of completely bypassing the host system, and routing all PCI-...
- 2,736
0
votes
3
answers
1k
views
Virtual machines with failover setup
We have three servers and our plan is to run a number of virtual machines on them in such manner, that if one of the nodes blow up, we can either quickly or seamlessly get a spare running on another ...
- 101