Andreus Maximus

Thank you SO MUCH. This is what I needed.

Quick question: Which model(s) did you try? There are a bunch, I wonder if the USB 3 drives might be better?

Oh, a note: Due to my desire to be running Win 11 VMs, I'm using the "Next" Unraid version: Version: 6.10.0-rc2

(1) Please consider adding something like this for the default syslinux config: label Unraid OS without GPUs kernel /bzimage append initrd=/bzroot earlymodules=vfio-pci video=efifb:off,vesafb:off gfxpayload=text WARNING: This will mean you don't have a functioning video device for TTY/terminal access to the physical machine. Why? On my machine (specs later)... the primary GPU cannot be selected in the BIOS settings; it is chosen by the proprietary MSI BIOS; the primary GPU (being the one that Unraid itself boots to) cannot be used for VMs vfio-pci BIND "succeeds" launching the VM gets a black screen after 2-3 launches, "qemu error.... var/log is full" syslog almost fills the 128 MB RAM drive, qemu logs are indeed overfull Dumping VBIOS and using a ROM file does not help None of the various tips/tricks help These options contribute to the fix: earlymodules=vfio-pci This might? load vfio-pci a bit earlier in the chain, helping it to grab the devices before anything else can video=efifb:off,vesafb:off This disables the framebuffer device drivers, which can hook into the GPU connected to the primary display gfxpayload=text I don't actually know, but it came with the others in the post I read (which I can't find). I suspect it tells the Linux kernel that the graphics subsystem will only take text, no real graphics, but when I find myself reading Linux kernel documentation, I get scared. (2) GPU passthrough documentation Please mention the above. (3) VM options: add "kvm hidden mode" This solution fixed my final issue (the "alternative for recent libvirt-qemu", the actual page is about patching the NVIDIA drivers to un-break them, please dear PTBs don't ever make me have to do that): https://github.com/sk1080/nvidia-kvm-patcher#preferred-alternative-for-recent-libvirt--qemu It would be really handy if the UNRAID GUI for VM creation had a checkbox for "kvm hidden mode" <domain> ... <features> ... <kvm> <hidden state='on'/> </kvm> ... <hyperv> ... <vendor_id state='on' value='whatever'/> </hyperv> ... </features> ... </domain> Key system specs (I am happy to send a full diagnostic download directly but not post it): MSI Z390 Gaming Pro Carbon AC Intel i7-9700KF GPUs, all BINDed to vfio-pci in WebGUI -> Tools -> System Devices Gigabyte NVIDIA RTX 2070 Super Gigabyte NVIDIA RTX 2070 Super (yes, another) Quadro K600 1x SATA HDD (sole drive of the array) 2x NVMe, 2x SATA SSD (each in their own pool) VMs: GPU Passthrough (all cards working) 4-8 cores assigned Hyper-V selected Custom XML as above for kvm hidden

@SpencerJ Thanks so much for responding! I wondered if that might be the reason. Cheap flash drives are cheap. *sigh*

If they are supported and can be trusted, how about adding some USB keys to the merch store? I'd love my UNRAID USB sticks to be branded. https://www.zazzle.com/create_your_own_usb_swivel_flash_drive-256899642231159821