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  1. K

    [TUTORIAL] Using mDNS inside VMs in SDN subnets

    Hello, I am a home user that just likes to play around with tech and like Proxmox a lot. I recently created an SDN and moved my VMs into it and everything works great, but I had an issue with a printer/scanner that was not getting "discovered automatically". The reason for this is that mDNS...
  2. K

    [SOLVED] Ubuntu 24.04-2 template not picking up default gateway

    In the systemd manual page, seems like this is expected behavior (guess NetworkManager does not follow this as my laptop / PC works without it): I edited the option 121 in OPNSense to add the default route there and now it is picked up properly by the LXC. So turns out not a proxmox issue, but...
  3. K

    [SOLVED] Ubuntu 24.04-2 template not picking up default gateway

    Apologies for the really basic question, but after setting up an LXC using ubuntu-24.04-2 template I have noticed that it is not picking up the default gateway. The only change to defaults was basically choosing DHCP instead of static for IPv4. I noticed proxmox seems to know how the distro...
  4. K

    [SOLVED] Isolate USB controller on 8845HS

    Thank you, this seems to work: # cat /etc/modprobe.d/vfio.conf options vfio-pci ids=1022:15c1,1022:1669 disable_idle_d3=1 softdep xhci_pci pre: vfio-pci softdep xhci_hcd pre: vfio-pci blacklist thunderbolt Here is the kernel driver state: c9:00.0 1300: 1022:14ec Subsystem: 1022:14ec...
  5. K

    [SOLVED] Isolate USB controller on 8845HS

    Hello, I have a system with Ryzen 8845HS and the following IOMMU groups: ...
  6. K

    Update with "switch network configuration from network-scripts to NetworkManager"

    There is an update to the pve-container package reading: pve-container (6.0.13) trixie; urgency=medium * setup: switch network configuration from network-scripts to NetworkManager for RHEL 10 and derivatives like CentOS Stream, AlmaLinux and Rocky Linux. -- Proxmox Support Team...
  7. K

    [TUTORIAL] HOWTO - Proxmox VE 8-x.x Wifi with routed configuration

    So, I have a question: why do you enable wpa_supplicant specifically for that interface? I would keep it disabled and use just `/etc/network/interfaces` to control everything. For example: allow-hotplug wlp6s0 iface wlp6s0 inet static address 192.168.5.10/24 gateway 192.168.5.1...
  8. K

    [SOLVED] The serial number can't be longer than 20 characters

    I anyone comes across this, apparently there is now a limit to the number of characters to the serial number. I had attached the disks as: dev=/dev/disk/by-id/.... qm set 9003 -scsi1 ${dev},serial=$(lsblk -nd -o model,serial ${dev} | tr ' ' '_'),backup=0 Concatenating the model and the serial...
  9. K

    [SOLVED] The serial number can't be longer than 20 characters

    Hello, After a recent update, I am no longer to start a VM. I get this error: root@lab:~# qm start 9003 kvm: -device scsi-hd,bus=virtioscsi1.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi1,id=scsi1,serial=WDC_WDxxxxxxxx-xxxxxxxxxxxxxxxx: The serial number can't be longer than 20 characters when...
  10. K

    Why is one-to-many USB device attachment possible?

    I have 2 VMs in my Proxmox: one has GPU passthrough for my main Linux desktop. The other is a Windows VM which I use for work (accessing my employer). I generally remote-desktop from Linux into the Windows VM with Remmina (it works great because it's basically a "localhost" connection) during...
  11. K

    Migrate VM to laptop with QEMU/KVM

    So, luckily I had remote desktop enabled, therefore I was able to RDP into the VM running on my laptop. Once logged in, I reinstalled the full VirtIO driver suite from the ISO. This ended up fixing the problem and I was able to log in from the virt-manager UI after rebooting.
  12. K

    Migrate VM to laptop with QEMU/KVM

    Hello, I am a hobbyist using Proxmox on my main system. My desktop is a VM with GPU passthrough. I also have other VMs and one of them is a small (ram/disk) Windows 11 machine. I need to transfer this machine to my laptop which runs Fedora and only has VirtManager. To that end, I followed...
  13. K

    I/O performance for heavy workload

    So far this has not been an issue at all. The problem only exhibits during prolonged writing to disk. I mentioned Steam downloading as an example, but if I am not actually downloading while gaming (and you can disable updates while gaming) then there is no issue.
  14. K

    I/O performance for heavy workload

    I know exactly what you mean. The pain my laptop still gives me to this day is terrible (I have the Nvidia disabled right now due to instability in 6.9.x kernels). I will look into this more. If the driver is not in the kernel OSS codebase I could get some other controller that has the same...
  15. K

    I/O performance for heavy workload

    I am thinking of using an external SAS enclosure, something like this: https://www.highpoint-tech.com/product-page/rocketstor-6434ts Since the controller is a PCI card, does the connection to the box reduce the performance or is it equally fast? My plan is to add the PCI card, then purchase...
  16. K

    I/O performance for heavy workload

    So, I checked and I have two identical 1TB Crucial MX500 disks which seem to have "Micron 256Gb 64-layer 3D TLC". I am not sure how bad these are compared to other SATA models of their time, but clearly are not up-to-par currently... I think I have the following two problems: I have set up a...
  17. K

    I/O performance for heavy workload

    Hello, I use Proxmox to host a VM that I use for general purpose desktop (with GPU passthrough). I've noticed that my system becomes unresponsive (I would describe it as high latency in reacting to my input, similar to memory thrashing due to swap usage) during periods of high disk I/O. For...
  18. K

    VM hosted SMB/CIFS storage cause ISO/template download corruption

    Well, here's another experiment that might surprise you. I used both wget and curl to download the file just now from command line. Both were ran on host D and wrote remotely to the samba share mounted from VMhNAS. They both worked: root@pve:~# curl -o...
  19. K

    Kernel Crash in amdgpu driver when using MST

    Hello, I have a Dell UltraSharp U4025QW monitor which has a feature that causes the kernel to crash: the iMST (internal Multi-stream Transport). This iMST allows you to use the "daisy chain" DisplayPort feature and connect two separate monitors to the same port. In this particular model, there...
  20. K

    Attach Brio USB Webcam to Linux VM

    I just want to update this thread in order to report that the BRIO is now working just fine. Turns out I was using a very slow 480Mbps A-to-B cable so the hub to which the BRIO was connected was communicating very slowly with the Proxmox host. Now that I have a 10Gbps cable between the hub and...