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Questions tagged [virt-manager]

The virt-manager is a desktop user interface for managing virtual machines through libvirt

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How to use gnome-keyring in virt-manager / remote-viewer for decrypting an encrypted SSH key?

I use virt-manager to connect to a remote KVM/libvirt hypervisor over SSH. After connecting to the server, I can interact with machines just like if they were on my local computer (under the hood, ...
Kalsan's user avatar
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1 vote
0 answers
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ERROR '>=' not supported between instances of 'NoneType' and 'str' in virt-mager

I am using Ubuntu 20.04 but virt-install doesn't work while my virt-manager version is 2.2.1 $virt-manager --version 2.2.1 i installed packages $sudo apt install libvirt-clients libvirt-daemon-system ...
CADENTIC's user avatar
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287 views

KVM guest/VM use host/physical VGA port

Is it possible to use the physical video interface (hdmi or vga, onboard), so that a VM can be viewed/used thru it? What I want it to plug a monitor on the host and see the VM graphical interface.
user17467472's user avatar
1 vote
1 answer
689 views

Unable to create a Linux bridge with a VLAN interface on Fedora

I'm trying to set up a Linux bridge that includes a VLAN interface on my Fedora system. My goal is to use this bridge with virt-manager to create multiple VMs, each with an interface in the bridge ...
a-kodez's user avatar
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0 answers
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AMD driver doesn't load after rebooting vm with GPU passthrough on virt manager

I'm having an issue with GPU passthrough, using virt manager on Debian 11. It's a very specific question, but i hope that someone can help me with this. I have an RX 5500XT GPU, and i passthrough it ...
Joabeslopes's user avatar
1 vote
0 answers
152 views

How do I force Virt-Manager to use the hosts' llvmpipe renderer so the guests get to use 3D acceleration?

I'm using virt-manager and set "3D Acceleration" as per what was recommended, but I'm getting this error: qemu_gl_create_compile_shader: compile vertex error 0:2(10): error: GLSL ES 3.00 is ...
X.LINK's user avatar
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1 answer
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Making SCSI tape drive controller accessible to VM OS using virt-manager

I'm trying to make a SCSI tape drive drive controller card (or strictly, the tape drives and robotic tape library hanging off it) visible to the OS running on the VM. I'm running RHEL 7.9 on both the ...
Mike Parker's user avatar
3 votes
1 answer
3k views

Understanding Current/Maximum allocation of VirtManager (LibVirt)

When I first saw the UI in VirtManager, I thought "Maximum" is the amount of ram that appears to the guest, and "Current" is the reserved RAM when the VM starts. I thought that ...
Damn Vegetables's user avatar
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1 answer
544 views

How can I view the gui for a virtual machine on Ubuntu Server?

I set my main machine to run Ubuntu Server because my old Optiplex finally bit the dust (RIP). I'm trying to set up a virtual machine using Ubuntu Server as a host and just allocate resources as ...
Joseph Ngechu's user avatar
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1 answer
783 views

Why does linking a gpu freeze QEMU in Ubuntu

I am running a Ubuntu on a workstation with 2 GTX 1070 and I5 7400 CPU, I have QEMU installed and I have an old windows 10 vm I tried to link the GPU by adding the PCI link hardware in virt-manager ...
Weed Cookie's user avatar
1 vote
1 answer
820 views

Can't Recover Space from qcow2 image without deleting wanted snapshots

I have a virtual machine that started out with 5 snapshots 1,2,3,4,5. I used qemu-img to delete snapshots 1,2,3. Snapshots 4 and 5 are still needed and were not deleted. How can I release the space ...
user73383's user avatar
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0 answers
3k views

virt-manager's remote-viewer: fails to connect thru SSH tunnel with "incomplete link header (-104/16)

I have a server running libvirtd with QEMU/KVM domains. I would like to access it with virt-manager from a remote machine, for which I open an SSH tunnel and forward a TCP port (libvirtd is listening ...
hypersw's user avatar
  • 101
2 votes
1 answer
170 views

How do you determine the location of a Vagrantfile from virt-manager?

OS is Debian 10, vagrant provider is libvirt. vagrant global-status is supposed to provide information on all vms on a system, but I can see shutoff and running vms in virt-manager that are not listed ...
cat pants's user avatar
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1 answer
510 views

Getting error “libosinfo: Unexpected file type (0)” when trying to create or open VM in virt-manager

I get the following error when clicking “Open” or “Create a new virtual machine” in virt-manager: Error launching details: libosinfo: Unexpected file type (0) Traceback (most recent call last): ...
aaronk6's user avatar
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1 vote
0 answers
157 views

virt-sandbox error creating an OS container with lxc backend in virt-manager

I am attempting to create an OS container through virt-manager with the lxc backend. virt-sandbox exits without any information on why it fails. Where can I find logs for it? Can I run virt-sandbox ...
Ananth's user avatar
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0 answers
122 views

why is kvm pool so small

I set up kvm on a fresh install ubuntu server 18.04 on a 1TB disk. There is nothing else on the disk. Whether I use virt-manager or virsh on cli to create a pool, I always get a pool of 3.75GB ...
zzr99's user avatar
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2 votes
0 answers
980 views

Repeated loss of network connectivity to QEMU/KVM/virt-manager VM

I'm having frequent network connectivity failures under the QEMU/KVM/virt-manager stack on openSUSE Leap 15.1. I have a single VM running a software firewall, which is losing connectivity every few ...
BrokenLeap's user avatar
0 votes
1 answer
13k views

KVM-QEMU bridged network not working - guest can only access host

I am trying to configure VMs to act like devices on my LAN, instead of hiding behind the host. This is the tutorial I followed: RHEL8 Network Bridged Interface My router/DHCP is at 10.10.1.254 Host ...
HomeIsWhereThePcIs's user avatar
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1 answer
5k views

QEmu and limit CPU clock vor VM

My question is simple. With the help of virt-manager, can I limit what speed should the VM see and use the CPU at? The goal is to test a web application if it runs better on more cores, lower speed ...
Bert's user avatar
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1 vote
1 answer
1k views

Virsh can't detect my new vm

I have a *.qcow2 image from my old OS, it contains Windows 10. Then I copied it to the new OS and tried to install it. I followed the method written here "How to create a new domain from an existing ...
Ita Subagja's user avatar
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0 answers
673 views

KVM - Modify from IDE to VirtIO

I imported a CentOS 7 guest from XenServer to KVM. After importing it into KVM the disk bus in use is the IDE. I need to change the disk bus from IDE to VirtIO because VirtIO has better performance. ...
Eduardo Lucio's user avatar
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1 answer
517 views

Preloading shared library with libVirt

I am trying to load two shared libraries while running Qemu using libvirt. To preload the shared libraries I have added an environment variable in the $domain.xml file with the following command: ...
Proy's user avatar
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Installation of virt-manager while yum update and yum install rhvm does not work

I have downloaded RHEV-H 4.2 https://access.redhat.com/products/red-hat-virtualization#getstarted (RHVirtualization 4.2 Host and Manager iso). I uploaded the image and installed on an HP G9 server ...
UnicsSol's user avatar
2 votes
1 answer
3k views

virt-manager vm console requires password

I have just started learning foreman. I added a KVM host to the foreman as a compute resource. I can now provision VMs from foreman now but I cannot view the console of the VMs that are provisioned ...
Jigar's user avatar
  • 111
2 votes
3 answers
7k views

Docker inside LXC starting container process caused "apply caps: operation not permitted"

I'm trying to run a Docker container inside an LXC container. However doing so causes me to get the following error: [root@DH-DockerLXC01 alex]# docker run fedora bash docker: Error response from ...
Alex's user avatar
  • 399
0 votes
1 answer
1k views

Missing KVM snapshots in virt-manager

I need to resize an image and receive an error when using qemu-img the resize is not supported because snapshots exist. Sure enough, even though virt-manager does not show any snapshots, I see the ...
rwfitzy's user avatar
  • 233
1 vote
1 answer
21k views

How I increase GPU video RAM in virt-manager?

I have this text in my XML <video> <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' ...
user490809's user avatar
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1 answer
114 views

Assigning a single IP address in virt-manager

I'm using virt-manager in Ubuntu 16.04 is there anyway to assign the IP I bought to my VM? The guest operating system is Windows Server 2008 R2
Joshua Rivera's user avatar
1 vote
1 answer
2k views

Using virt-builder to create image

I'm trying to automatically create cloud images using virt-builder. I am using the following command in Centos 7 and it keeps failing. Any idea behind the issue ? # virt-builder debian-9 -o /var/lib/...
codingfreak's user avatar
0 votes
1 answer
337 views

GTK apps no longer render text

I am using virt-manager on Debian Jessie. A few weeks ago, it was working fine for me; however now when I run it, the text does not render correctly. I have tried reinstalling all of the dejavu fonts,...
http_error_418's user avatar
1 vote
0 answers
3k views

USB passthrough not working using virt-manager/qemu

I have created a virtual machine using virt-manager 1.3.2 and wanted to add a USB device. However, the USB device does not show up in the guest (Debian) when using lsusb. In another virtual machine ...
Michael Kremser's user avatar
7 votes
5 answers
34k views

virt-manager Spice copy paste doesn't work

I have a Debian 9 KVM host runs on a dedicated server. I use virt-manager on my laptop (Ubuntu 16.04) to connect it remotely. Everything works quite well except copy/paste actions between VM's SPICE ...
thiras's user avatar
  • 175
1 vote
1 answer
3k views

virt-viewer not starting up correctly

I just installed virt-viewer on RHEL7.3 using yum install virt-viewer and now I am getting below error [root@host ~]# virt-viewer virt-viewer: symbol lookup error: /lib64/libspice-client-gtk-3.0.so....
Yu Watanabe's user avatar
2 votes
1 answer
3k views

virt-manager connect to kvm w/o password

I want to connect my KVM host with virt-manager, but I use pub key for authentication, and I cant skip the openssh-password popup. Is it possible to log in without a password? (i apologize for my ...
Crowor's user avatar
  • 143
2 votes
1 answer
2k views

Load QEMU Firmware Configuration Device in virt-manager?

Is there a way to load fw_cfg file in virt-manager (v1.4.1)? On the plain QEMU command line I can do it like so: -fw_cfg name=opt/com.coreos/config,file=some/file.json I cannot find equivalent ...
NarūnasK's user avatar
  • 378
0 votes
2 answers
2k views

Using virt-manager with seahorse instead of ssh-askpass?

On my Arch Linux virt-manager can not connect remote ssh and tells about installing ssh-askpass. As I wan't to use the gnome default seahorse, I was looking for a solution which I didn't find on the ...
Ulrich-Lorenz Schlüter's user avatar
1 vote
2 answers
1k views

centos server with virtual machines parent cant connect out but vms work fine

I have a server centos 6.2, it has several vm's using https://virt-manager.org/ the vms work great, no problems. The problem I have is the parent server cant connect out using any protocol. DNS works ...
Joelio's user avatar
  • 187
1 vote
1 answer
10k views

Error when adding network interface to VM on KVM host using virsh

I'm attempting to script adding a network interface to a centos 6 guest. I know the interface can be set up using the virt-manager gui but it's highly desirable for it to be added as part of an ...
robbiedyer's user avatar
0 votes
0 answers
1k views

qemu-kvm ovmf block device passthru

I'm trying to create a new VM (using virt-manager) that boots from an existing block device. I want to pass through the entire device to the VM. Apparently this is easy if you're using BIOS, but I'm ...
ACK_stoverflow's user avatar
2 votes
3 answers
3k views

virt-manager: Partioning the available memory

I have a hypervisor which uses kvm and virt-manager to handle the virtual machines. The hypervisor has 6GByte of memory. If I add a new virtual machine I don't know how much memory is still free. ...
guettli's user avatar
  • 3,833
1 vote
1 answer
931 views

KVM/QEMU: "Storage parameter error: directory is not managed on the remote host" when importing an existing image from a mounted drive

A server I manage remotely has a KVM/QEMU image stored on a non-os, mounted drive /mnt/drive. When I use virt-manager to import the disk image, I get the following error: Storage parameter error. ...
Greg's user avatar
  • 1,687
2 votes
1 answer
2k views

How to explain the machine type concept in the virtualization?

When I was under Debian Wheezy, virt-manager created virtual machines with the "pc-0.12" machine type. Since I am under Debian Jessie, virt-manager creates virtual machines with "pc-i440fx-2.1" ...
Bertaud's user avatar
  • 133
0 votes
1 answer
1k views

Edit /etc/resolvconf/resolv.conf.d/base in Centos 7 -- qcow2 image

My qcow2 image uses local nameserver, 192.168.122.1 which is not working for reasons unknown. So, I tried to use guestfish and edit the file /etc/resolv.conf to add nameservers, 8.8.8.8. This doesnt ...
Saravana Kumar's user avatar
7 votes
2 answers
64k views

probing EDD boot message stays for ten minutes on centos 6.6

I am trying to bring up a Centos 6.6 qcow2 image on my virt-manager. Booting from Hard disk.... Probing EDD (edd=off to disable)... ok The guest machine stays with the above message for near ten ...
Saravana Kumar's user avatar
1 vote
2 answers
1k views

Can libvirtd be used without kvm?

I wanted to try libvirtd with virt-manager (I wanted to test migration.) on a virtual machine (without nested virtualization support enabled, so no kvm...), and I expected it to work (and use full ...
Tarnay Kálmán's user avatar
1 vote
1 answer
1k views

Is it possible to install virt manager in client mode?

I have a KVM server (updated to Ubuntu 14.04) for several years now, that I handle distantly with virt-manager under different Linux flavours. I recently formatted and reinstalled my main workstation ...
Moonchild's user avatar
  • 133
0 votes
2 answers
4k views

Is it possible to add an os variant to the virt-manager list?

I just installed RHEL 7.1 on a server. I'm using it to study for the RHCSA/RHCE exams. One of the steps in the study guide is to install a VM through virt-manager using installation media on an FTP ...
theillien's user avatar
  • 449
0 votes
1 answer
1k views

Ubuntu Trusty: virt-manager performance over WAN... 40+ secs freezes

I'm using the virt-manager GUI 0.9.5-1ubuntu3 on my laptop running Ubuntu 14.04 against a server located some distance away (same OS) and getting rather unpleasant performance. Laptop-server pings ...
sxc731's user avatar
  • 327
-2 votes
1 answer
145 views

virt-manager gui default values customization

Is it possible to configure virt-manager (libvirt) so that when an operator opens the GUI to add a disk, the default value for "Cache mode" is "none"?
EBAH's user avatar
  • 11
3 votes
2 answers
8k views

Installing a Windows guest with virtio in a single step (Debian)

I am trying to create a Windows 7 (32bits) with virtio disk and network in a single step using virt-manager. I've been trying to follow the step-by-step procedure here. However there is no such ...
malat's user avatar
  • 198