qemu

i have a windows 11 vm and pbs vm and they will randomly not start with this error: but if i retry a couple of times, they will inevitably start up. anyone have any ideas why this is happening?

On PVE 9.1.4, I'm trying to pass a Z-wave USB dongle to a QEMU VM (Ubuntu 25.04): The device is seen by both the host and VM, via lsusb : Host: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID...

I have some maintenance scripts where I need to pause/resume a set of VMs on my PVE 9.1 cluster. I want this script to operate on all VMs that are set to auto-start (onboot=1) I found the /nodes/{node}/qemu API endpoint, but sadly the onboot parameter is not included in its output. I can get...

Hi,everyone I can not boot any new vm, then system will get error, anyone can help me? ASK ERROR: start failed: QEMU storage daemon 102 qsd command 'block-export-add' failed - Parameter 'type' does not accept value 'fuse'

Hi All, I have Proxmox VE server 8.3.0 ( pve-manager/8.3.0/c1689ccb1065a83b (running kernel: 6.8.12-10-pve ) installed on our server. Currently installed version is VE 8.3.0 I want to update the package to below version. qemu-server: 8.3.0 -> 8.3.12 pve-qemu-kvm 9.0.2-4 -> 9.2.0-5 How i can...

Hey everyone, A few recent developments prompted us to examine QCOW2’s behavior and reliability characteristics more closely: 1. Community feedback There are various community discussions questioning the reliability of QCOW2. We have customers (predating our native integration) interested in...

I have a problem with only one VM. That VM for unknown reasons sometimes loses guest agent. This is pretty bad, because that makes also the backup impossible, since I do backups to PBS with stop mode. Is there a known issue with this config? I had it once before, did not think much of it and...

There is a new QEMU 10.1 package available in the pve-test and pve-no-subscription repositories for Proxmox VE 9. After internally testing QEMU 10.1 for over a month and having this version available on the pve-test repository almost as long, we now (2025-11-04) made our QEMU 10.1 package...

When trying to add a new bridge to my VM in the web interface, I get a popup with the following error: Parameter verification failed. (400) net2: hotplug problem - VM 101 qmp command 'netdev_add' failed - could not open /dev/net/tun: Too many open files I will probably just try to add the...

Hello, I recently did an upgrade from v8 to v9 and everything came back with my windows VMs, but my TrueNAS Scale did not. Got that QEMU error with Code 1 showing. I can click on the VM and see that Hard Disk (scsi0) is showing Disk-0 instead of Disk-1 like all of the other VMs show for the OS...

Normally I would not think much about a VM shutting down, but that VM has a GPO policy so there is no shutdown button. This made me curious to find out what caused the shutdown. Proxmox webGUI: Here I see nothing of interest in the task list. The VM was shutdown for a backup, but that was a few...

I updated proxmox today with the latest patch release. my Home Assistant VM fails to start with the following error. /usr/bin/kvm: error while loading shared libraries: librbd.so.1: cannot open shared object file: No such file or directory command '/usr/bin/kvm --version' failed: exit code 127...

Hey All, I'm working on a project to integrate the qemu-guest-agent service into a RHEL_9_4 based OS in my company. As part of the development process of this project, I downloaded the qemu-kvm 8.2.0-12 rpm from the redhat package manager - link After bringing the untainted package I modified it...

Hello I have 2 VMs running on my Proxmox. I scheduled a task to reboot them weekly. However, one of them is having this issue: It doesn't receive the signal to shutdown, but I've already verified that the QEMU agent is running. Also tried reinstalling, but the issue persists. Any ideas?

Hi all!! I’d like a mechanism of more intuitively identifying from within proxmox’s webui (and possibly other places as well?) the relationship between a block device and its vm-scoped-use by this, i mean a label-construct that would allow for hinting to future-me...

I cannot get qemu-guest-agent installed on the debian-12-generic-amd64.qcow2 image. I'm trying to follow the instructions from this tutorial and code. Here are the steps I'm following and the outcome: First, I get the image using this script: ./bin/import-cloud-image...

I'm looking for a solution to drop the need for intermediate bridges for a corner/edge case where I need the VMs to have "direct" P2P links ONLY, and typically to the host too. Reason: I want to use OpenFabric as a IGP, and it requires P2P links only , ie, only 2 parties to a link. As I add...

Hello, To have a rate-limit on the bandwidth of a VPS limited to 1 Gigabit/second, is it correct to set the rate limit to 125? Thanks!

It looks like QEMU agent is displaying disk usage instead of memory for some reason. Every time I install a package it just increases along with disk usage. Anyone every seen anything like this or know how to fix it? As you can see I am only using 4-500MB of memory but disk usage is lining up...

There is a new QEMU 9.2 available in the pvetest and pve-no-subscription repository. After internally testing QEMU 9.1 for a couple of months, and then 9.2 for a couple of weeks, we decided to skip a separate 9.1 update and move directly to QEMU 9.2 as the default version included in the next...