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  1. Yep, this results in VM not booting - eventually it will get to windows startup repair and only way to fix it (that i have found) is combination of: and which effectively just undoes the change (as far as I can determine).
  2. This was described here: And unfortunately, as mentioned, it resulted in same error: Failed to start the virtual machine 'DockerDesktopVM' because one of the Hyper-V components is not running. (conf attached). ptvm_2.xml
  3. Unraid 6.8.3 TLDR: How to get docker desktop running inside W10 VM (if it is even possible)? (and yes, there is specific reason why I would like to run docker inside the VM and not just connect to unraid's daemon) As far as i can determine, it should be working, but it simply isnt. I have enabled nested-vm in unraid: systool -m kvm_intel -v | grep nested nested = "Y" I could enable hyper-v features in W10 VM and as far as I can determine they should be working: Docker Desktop installs fine, but it won't actually start: Docker.Core.DockerException: Docker.Core.Backend.BackendException: Unable to start Hyper-V VM: 'DockerDesktopVM' failed to start. Failed to start the virtual machine 'DockerDesktopVM' because one of the Hyper-V components is not running. ... I am assuming it is because one of the hyper-v services is not running and won't start (in a physical machine with docker working, it is running) : I also assumed the service issue was caused by this driver problem: I have retried disabling-enabling features and reinstalling docker desktop with same end result. I have also tried: <kvm> <hidden state='on'/> </kvm> Which didn't seem to do anything. Then I tried (separately): <feature policy='disable' name='hypervisor'/> Which resulted in W10 not being aware that it is a VM: "Virtualization: Enabled" seemed lika good thing and it also seemingly fixed the driver issue: But the HV Host Service behaves still in the exact same manner (so maybe this driver thingy is not relevant at all?) And when I try to run Docker Desktop, it fails with a new message: Hardware assisted virtualization and data execution protection must be enabled in the BIOS. See https://docs.docker.com/docker-for-windows/troubleshoot/#virtualization-must-be-enabled I also tried: https://forums.unraid.net/topic/70040-guide-vms-in-vm-intel-nested-virtualization/ but it didn't seem to change behaviour. https://youtu.be/2-saWn6ZbHc?t=663 describes same behaviour 3 years ago and attributes it to a bug that I assume should be fixed by now? At this point I'm out of ideas and my google-fu has let me down. Any help would be appreciated. Base VM conf (without all the fix attempts): <?xml version='1.0' encoding='UTF-8'?> <domain type='kvm' id='53'> <name>ptvm</name> <uuid>ce31c424-4f6a-1f98-4667-de7ffad64628</uuid> <metadata> <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/> </metadata> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <memoryBacking> <nosharepages/> </memoryBacking> <vcpu placement='static'>6</vcpu> <cputune> <vcpupin vcpu='0' cpuset='1'/> <vcpupin vcpu='1' cpuset='5'/> <vcpupin vcpu='2' cpuset='2'/> <vcpupin vcpu='3' cpuset='6'/> <vcpupin vcpu='4' cpuset='3'/> <vcpupin vcpu='5' cpuset='7'/> </cputune> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-i440fx-4.2'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader> <nvram>/etc/libvirt/qemu/nvram/ce31c424-4f6a-1f98-4667-de7ffad64628_VARS-pure-efi.fd</nvram> </os> <features> <acpi/> <apic/> <hyperv> <relaxed state='on'/> <vapic state='on'/> <spinlocks state='on' retries='8191'/> <vendor_id state='on' value='none'/> </hyperv> </features> <cpu mode='host-passthrough' check='none'> <topology sockets='1' cores='3' threads='2'/> <cache mode='passthrough'/> </cpu> <clock offset='localtime'> <timer name='hypervclock' present='yes'/> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/local/sbin/qemu</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='writeback'/> <source file='/mnt/user/vm/ptvm/vdisk1.img' index='2'/> <backingStore/> <target dev='hdc' bus='virtio'/> <boot order='1'/> <alias name='virtio-disk2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/user/isos/virtio-win-0.1.141-1.iso' index='1'/> <backingStore/> <target dev='hdb' bus='ide'/> <readonly/> <alias name='ide0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> <controller type='usb' index='0' model='ich9-ehci1'> <alias name='usb'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <alias name='usb'/> <master startport='0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/> </controller> <controller type='usb' index='0' model='ich9-uhci2'> <alias name='usb'/> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <alias name='usb'/> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/> </controller> <controller type='pci' index='0' model='pci-root'> <alias name='pci.0'/> </controller> <controller type='ide' index='0'> <alias name='ide'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='virtio-serial' index='0'> <alias name='virtio-serial0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </controller> <interface type='bridge'> <mac address='52:54:00:6f:03:42'/> <source bridge='br0'/> <target dev='vnet2'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <source path='/dev/pts/2'/> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> <alias name='serial0'/> </serial> <console type='pty' tty='/dev/pts/2'> <source path='/dev/pts/2'/> <target type='serial' port='0'/> <alias name='serial0'/> </console> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-53-ptvm/org.qemu.guest_agent.0'/> <target type='virtio' name='org.qemu.guest_agent.0' state='connected'/> <alias name='channel0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='tablet' bus='usb'> <alias name='input0'/> <address type='usb' bus='0' port='1'/> </input> <input type='mouse' bus='ps2'> <alias name='input1'/> </input> <input type='keyboard' bus='ps2'> <alias name='input2'/> </input> <graphics type='vnc' port='5901' autoport='yes' websocket='5701' listen='' keymap='en-us'> <listen type='address' address=''/> </graphics> <video> <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </memballoon> </devices> <seclabel type='dynamic' model='dac' relabel='yes'> <label>+0:+100</label> <imagelabel>+0:+100</imagelabel> </seclabel> </domain>