qemu

  1. Schrift hat sich automatisch verändert

    War auf dem Debian Server am Arbeiten und plötzlich hat sich die Schrift verändert, als ich wieder aus einer Datei herausging. Nichts wurde angepasst oder verändert. Ich habe keinen Schimmer, wie das passiert ist und wie man dies wieder zurückstellen kann. Ist dies ein Proxmox Problem?
  2. Slow write speeds DRBD

    Hi all, Since the github of drbd seems a bit dead i hope someone here can help us out since we're working with qemu and drbd: Currently we are running 2 servers with a drbd configuration: The machine we're logged into in this picture is the v02, where drbd1 is primary. Here we run a Windows...
  3. Mobile app noVNC cannot be shifted.

    When viewing a QEMU machine console with noVNC, the options are to either scale the screen locally, or not. When scaled locally, the text is so small that it's not practically usable. Disabling local scaling fixes that, but then the view screen cannot be shifted left / right or up / down, so...
  4. NVMe emulation for guests

    Hi folks! I recently read about the advantage of NVMe over VirtIO in terms of storage performance. How about implementing NVMe emulation in Proxmox VE since QEMU already supports it?
  5. [SOLVED] Cannot roll back VMs

    Dear Proxmox Users and Maintainers / Developers, I cannot seem to roll back (maybe only some) VMs. The full rollback log is: Logical volume "vm-196-disk-0" successfully removed. WARNING: You have not turned on protection against thin pools running out of space. WARNING: Set...
  6. [SOLVED] [API] ISO parameter for QEMU creation

    Hello all, I'm working on a small project to create a KVM using the API, but I'm encountering an issue. In short, I can successfully create a disk for KVM by calling the endpoint /api2/json/nodes/{node}/qemu with parameters like virtio0: local-lvm:10,cache=none,size=10G,ro=0 Now, I want to...
  7. Stopped start failed: QEMU exited with code 1

    Hello! I can't open VM, can you help me with a solution?
  8. [TUTORIAL] virtiofsd in PVE 8.0.x

    virtiofsd is used to "passthrough" parts of a host filesystem to a virtual machine with "local filesystem symantics and performance". Proxmox moved to a rust based version of virtiofsd in PVE 8 located here. It's installed as a separate package called "virtiofsd" in PVE 8, whereas a different...
  9. Best approach to ceph mount on multiple vm?

    What is the best approach? that will be easy to install and maintain for future upgrades currently on pve 7.4 and ceph 16.2.11 now have 4 vms (as testing,poc) but planning to grow to around 50 ( i prefer to do it once, then clone the node if it is possible) for perspective i have the...
  10. Ways to use pcspkr from VM

    I have a small home server used to virtualize a few machines. It's headless and sits in my living room. Before virtualizing, I used to utilize the pcspkr via beep for simple communication; e.g. a lost network connection, or to signal a completed backup to a offline drive. Most of these things...
  11. Proxmox wrong metric of VM Memory Usage

    Hi, we are seeing a really strange behavior on one of our VM. Proxmox () is showing a lot of less RAM ussage for that VM. VM RAM Config (we are not using Ballooning): VM Info: And if we go to the console and show the `free -h`: The VM has installed qemu-guest-agent. The VM OS is: The...
  12. Help with VM start-up error QEMU. with PCI passthrough,

    HELP Cant get this thing working. Trying to get my NIC into a PFsense-OPNsense VM. Once I get the VM started without, but once I add any of the X520-DA4 ports to the VM it no longer starts. I am getting a QEMU error code 1. Other VM's I plan on adding, once I get the router going. IOMMU is...
  13. Virtuelle qemu Festplatten zum experimentieren mit ZFS erzeugen

    Wie kann man in Proxmox qemu hdds erzeugen die ich für ein ZFS pool nutzen kann. Auf den hdds (ich glaube man nennt sie auch vdevs?) soll keine virtuelle Maschine oder sonst was drauf. Sie sollen lediglich dazu dienen um mit ZFS herum zu spielen. Später sollen sie wieder gelöscht werden und...
  14. Proxmox 7.4.1 crashing 10-15 mins after launching VM

    Hi, I have a number of issues with my server that started recently - I believe it shutdown due to a power cut while I was away (it does sit behind a UPS but auto-shutdown isn't setup). We very rarely get cuts of more than a few seconds. This machine has been running flawlessly for a few years...
  15. Windows Server 2019 mit "hv-tbflush" bootet in Kernel 5.15.104-1-pve nicht mehr.

    Hallo, nach meinem Update von auf pve-manager/7.4-3/9002ab8a bootete mein Windows Server 2019 nicht mehr. (Hing im Bootscreen fest). Auch ein Hardrest der VM dauerte fast eine Minute bis zur Durchführung. Nach etwas Troubleshooting stellte ich fest, das das Problem nur auftaucht, wenn ich das...
  16. ZFS RAID1 to storage important "standard" files?

    Hello everyone, I'm fairly new to this server, virtualization and backup stuff. I have a 2 TB hard drive with very important information for me. I am planning to buy two 8TB disks and put them in RAID1. My question is if I can use the Proxmox interface to put them in RAID1 with ZFS and then...
  17. t.lamprecht

    QEMU 7.2 available on no-subscription as of now

    FYI: The next Proxmox VE point release 7.4 (2023/H1) will default to QEMU 7.2. Internal testing for that version started in December, and it was available on the pvetest repository since last Wednesday without any relevant issue coming up, but a lot of positive feedback about resolving odd bugs...
  18. Windows VM doesn't have valid IP

    Can you please help me whats wrong with windows VM i created on proxmox? it's showed no valid ip on network and no internet. I already install all virtio drivers and qemu agent. already created linux bridge on vmbr0. But i confuse why VM assigned different ip address on ipv4 instead of vmbr0 i...
  19. t.lamprecht

    QEMU 7.2 available on pvetest as of now

    FYI: The next Proxmox VE point release 7.4 (2023/H1) will default to QEMU 7.2. Internal testing for that version started in December, today it has been made available on the pvetest repository. Besides some small initial bug and regression fixes, we saw no actual new issues coming up. Note...
  20. USB emulation - no option to disable

    Hi! Is there any future plan to add USB emulation to disable/remove per VM? usecase: QEMU USB device causes high context-switching (interrupts) inside a VM ( ex. freebsd ) thus high cpu load on the HOST. VM doesn't need to have emulated USB controller inside the VM, thus saving resources on the...

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