Nested virtualization: Success stories (and failures)

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Re: Nested virtualization: Success stories (and failures)

Postby socratis » 18. Jan 2019, 01:33

Friis wrote:I updated Virtualbox to 6.0.2 and felt like I didn't get as far as I used to.
Not sure what I'm seeing here, and not sure why both the logs. You included the Win10 host logs, in which I see no errors...

Friis wrote:in Unraid I have run activate nested virtualization script
Not sure what that is as well...
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
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Re: Nested virtualization: Success stories (and failures)

Postby Friis » 19. Jan 2019, 18:07

socratis wrote:Not sure what I'm seeing here, and not sure why both the logs. You included the Win10 host logs, in which I see no errors...

Then I don't know what logs needs to be added. VBoxHardening.log? windows log?

socratis wrote:Not sure what that is as well...

Unraid is my host OS, Windows 10 is my VM, windows 7 is my nested VM.
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Re: Nested virtualization: Success stories (and failures)

Postby socratis » 19. Jan 2019, 19:21

@Friis
The way that I understand nested virtualization is VirtualBox-inside-VirtualBox. Is there a VirtualBox for Unraid OS? What's Unraid based on? And are you trying to run?

    Unraid (version?) as host
      » VirtualBox (version?)
        » Win10 (flavor/version?) as guest
          » VirtualBox (version?)
            » Win7 (flavor/version?) as nested guest
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Posts: 21417
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Primary OS: Mac OS X other
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Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: Nested virtualization: Success stories (and failures)

Postby Friis » 20. Jan 2019, 03:09

Unraid, uses KVM virtualization.
Unraid (Version 6.6.6) host
Windows 10 (pro 1803) as guest
VirtualBox (6.0.0 - works best)
Windows 7 (Enterprise? I think, been some time since I have been in it) as nested guest

Unraid support GPU passthrough (Type 1 virtualization I think)

Virtualbox 6.0.0 I get to the point where windows asks me if I would like to start normally or run repair. after click run normally, the VM freezes. (6.0.2 I don't get that option)
Unraid has Hyper-V activated for Windows 10 VM, which also seem to be what is the best paravirtualization option in Virtualbox.
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Re: Nested virtualization: Success stories (and failures)

Postby socratis » 20. Jan 2019, 12:53

Pending an answer from the developers, I (personally) am going to be looking initially, only in the following scenarios:
socratis wrote:The way that I understand nested virtualization is VirtualBox-inside-VirtualBox.

I wouldn't know where/what to start looking for in a KVM log. :o
And I don't plan to either, because I can't run KVM...
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Posts: 21417
Joined: 22. Oct 2010, 11:03
Location: Greece
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: Nested virtualization: Success stories (and failures)

Postby Tom B » 20. Jan 2019, 15:47

Log file:

Virtualbox: 6.0.2
Host: Arch Linux
Guest: Windows 10 with Nested virtualization enabled
CPU: AMD Threadripper 1950x


Crashes during windows boot.
Attachments
Windows 10-2019-01-20-13-45-07.zip
(23.18 KiB) Downloaded 4 times
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