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  1. [SOLVED] 3090Ti passthrough not working - Stuck at "Guest has not initialized...."

    Hi, Recently I purchased a new GPU for numerical work for my workstation. It was installed roughly 1.5 year ago and has been running PVE 6.4, running on a AMD Threadripper 3970X, with PSU being Corsair AX1600i. Here is the kernel version: Linux polaris 5.4.189-1-pve #1 SMP PVE 5.4.189-1 (Wed...
  2. Proxmox freezes probably due to SSD being full

    I am running Proxmox 6.4-13. Lately I am experiencing system freezing, in particular before it totally freezes out, it will display input/output error when doing df/nano/lsblk. I ruled out all add-on disks, leaving the system SSD to blame. Besides it being a hardware failure, I remember seeing...
  3. [SOLVED] Proxmox 7.0-11 Headless boot with Gigabyte X570S UD

    This may not be a Proxmox issue as it could just be the motherboard, but here is my observation which I wonder if you have any clues. I am trying to boot Proxmox 7.0-11 headlessly after the initial installation. With the GPU still attached, everything works normally and I could access the...
  4. [SOLVED] GPU gets very hot after enabling IOMMU on fresh PVE install

    I recent got a new build for using PVE, with the key components: AMD 2700X Gigabyte X570S UD Vega 56 PVE 7.0-11 After the installation, before setting up any VM, I installed lm-sensor and checked the temperature of various items. The GPU shows 44C and is actually only warm to touch. This temp...
  5. [SOLVED] Wireguard on unprivileged LXC seems to be broken after a recent update

    I updated Proxmox via the GUI today, after a reboot I realized my LXC wireguard client can no longer connect to a wireguard server as usual. The journal shows the below: Jul 11 16:35:00 CSWG2 wg-quick[334]: [#] ip link add wg0 type wireguard Jul 11 16:35:00 CSWG2 wg-quick[341]: Error: Unknown...
  6. VM shows io-error and locks up

    I am setting up one VM to do plotting for Chia, it has the following disks: -3 pass-through 1TB SSDs -5 SATA 400GB SSDs as RAID0 in Proxmox, used as a directory and is assigned as virtual hard disk to the VM (volume set was 1800 GiB, after checking df -BGiB in Proxmox shell) -1 PCI-E RAID card...
  7. Memory ballooning: Should ubuntu guest reports a change in total ram?

    With PVE 6.4-6 and ubuntu 20.04.2 as guest VM, I am trying to use memory ballooning. The system has 64 GB RAM and at the moment only 3 OS are running, 2 are using in total < 2 GB RAM, so most RAM is available for the ubuntu VM. I set the VM to have 8 GB minimum, and 48 GB as memory, with the...
  8. [SOLVED] Slow NVMe SSD performance in guest ubuntu (400 MB/s instead of 2000 MB/s)

    I have a guest ubuntu 20.04.2 where I tried to pass two Kingston A2000 1TB to, this is done by passing them as PCI Device, with PCI-E flag checked. The advertized speed is up to 2000 MB/s write. With the drives empty, I found while read speed is 2000 MB/s as expected, the write speed is limited...
  9. Trying to understand LXC RAM and SWAP allocation

    I have a workstation with 256 GB RAM, and by default the host has only 8 GB SWAP. With the two LXCs I have, as they can potentially use a lot of RAM, I committed 192 GB RAM and 64 GB SWAP to both. My question is, in a situation where both LXC reaches a high usage and they consume more than 256...
  10. Mounting/Connecting SMB automatically from unprivileged LXC without using fstab

    I am trying to connect to an SMB existing in another Proxmox guest, from both LXCs and VMs. The LXC clients are unprivileged, and when I add //192.168.11.20/store /mnt/store_mnt cifs username=store,password=password,_netdev 0 0 and execute mount -a It complained with an error suggesting a...
  11. Proxmox frozen randomly, any ideas?

    Hi, I have been using Proxmox for a year now, and it has been running great on that machine (rock solid). Lately I put on a Windows Guest OS, but simultaneously true is I have not turned on that machine for a while as I relocated. In the past couple days after turning it back on, I have...
  12. Packet loss to/from Proxmox host/CT

    I have recently assembled a new workstation using Asus Zenith 2 Extreme which has multiple NICs. The intel one is what I am using for connecting to the host (for now): Intel® I211-AT, 1 x Gigabit LAN Controller(s) After a fresh installation of Proxmox, I realized that the Web GUI is often slow...
  13. Passing a LSI 9266-8i RAID array to unprivileged LXC

    Sorry if I missed the tutorial in the Wiki, I tried to find the method but couldn't seem to see it. I have a RAID 6 array under a PCI-E LSI 9266-8i RAID card. The RAID array forms a single 21 TB volume which is encrypted with LUKS, and it is normally locked in Proxmox host. At the moment, I...
  14. High performance way to share a NVMe RAID array across multiple VM guests

    Hi, I don't really have the need for speed regarding the title, but I can't help wondering what would be the most efficient (and maybe fastest) way to share an array across multiple VM/LXC guests. I am asking as I currently rely on a Linux Bridge which does not attach to physical port for...
  15. [SOLVED] Adding PCI Express Root bus device to the config file

    Hello, Sorry if this question is very simple, but I have no idea about where to apply the said device in the title, that is from this link: https://forum.level1techs.com/t/increasing-vfio-vga-performance/133443 As an attempt to fix the AMD Reset Bug I knew that the config files of the VM sit...
  16. GPU Passthrough to ubuntu guest, rebooting guest will freeze the guest and glitch the host

    Sorry for the long title, but the behaviour is a bit confusing so I said it in full. My spec is: Threadripper 1950X AMD X399 Taichi AMD Radeon Vii I clean installed Proxmox 6.2 and then also clean installed ubuntu server 20.04.1. I was trying to pass the GPU from Proxmox to the ubuntu guest. I...
  17. [SOLVED] Backup to Dropbox works for VM but not LXC

    Hi, I am trying to setup an automatic backup of the disk image to dropbox for my VM. First I install dropbox on my proxmox root, then I created a symlink folder where then I assign as the backup directory in the GUI. With this, I have no problem backing up a VM and have it uploaded to dropbox...
  18. Deleting multiple backup image from WebUI?

    Hi, Just realized there is no way to remove multiple backup images from the WebUI directly, though I believe it is doable from the CLI. Could this be implemented (multiple selection of backup images for deletion)?
  19. OTP fails, though time were exact on phone and pve host

    Hi, So this happens a second time. The first time it happened was a few months ago where I took the chance to reinstall PVE, so I never found out why. This time, again, after stopping the host for some hardware swap and maintenance, the OTP login fails. The host is now connected to the internet...
  20. Problem running VirtualBox inside a container

    Hi, I created a container using the ubuntu 18.04.1 template from Proxmox. Then I try to install virtualbox but then the service started with an error: Nov 11 00:04:04 ubuntu-farm systemd[1]: virtualbox.service: Failed to reset devices.list: Operation not permitted -- Subject: Unit...

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