Boot failure when installing to Hyper-V/Windows 10

[mihies]

I'm trying to install TrueNAS Scale under Hyper-V on Windows 10 for testing purposes. Everything runs fine until I reboot and then I get "Boot failure: Reboot and Select proper Boot device..."
If I boot again from CD, it sees that an install is already there but nothing changes even if I reinstall.
For boot disks I'm using a pair of dynamic expanding 32GB SCSI ones. Virtual machine is generation 1.
I'm sure I'm missing something obvious.

 

[ClassicGOD]

Not sure if this will help as I never tried to boot TrueNas in VM but if your VM is set up with UEFI try setting it up in BIOS mode.
Scale is Debian based and I always had issues making Debian boot on VM in UEFI mode (there is a workaround for this involving editing uefi boot files).

 

[mihies]

Not sure if this will help as I never tried to boot TrueNas in VM but if your VM is set up with UEFI try setting it up in BIOS mode.
Scale is Debian based and I always had issues making Debian boot on VM in UEFI mode (there is a workaround for this involving editing uefi boot files).

I think that's already the case when setting Generation 1 of the virtual machine. Normal distros (i.e. ubuntu) would boot happily in this way. I'll recheck it though.

 

[mihies]

Found it. It will only boot from IDE disks but not from SCSI.

 

[ClassicGOD]

Found it. It will only boot from IDE disks but not from SCSI.

That's strange. Scale definitely boots from SCSI on bare metal. It has to be some Hyper-V quirk. Anyway, glad you found the solution.

 

[mihies]

Found an explanation I guess, for the curious https://social.technet.microsoft.co...c/boot-sequence-to-scsi-controller-in-hyper-v