Guru Meditation Win Server 2019

Discussions related to using VirtualBox on Windows hosts.
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R.Lionel
Posts: 1
Joined: 15. Mar 2020, 19:54

Guru Meditation Win Server 2019

Post by R.Lionel »

I did have windows server 2019 running just fine on my Windows 10 Pro machine as the host, and I did not shut down my guest system properly one time and now I'm getting the guru meditation error. I tried to uninstall everything and then reinstall and I'm still getting the same error. I'm attempting to attach the Log the way I believe yall want it. I would appreciate any help, thank you!
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scottgus1
Site Moderator
Posts: 20945
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows, Linux

Re: Guru Meditation Win Server 2019

Post by scottgus1 »

Your log contains these lines:
{timestamp} HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
{timestamp} NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...


Under normal circumstances the guest would run but very slowly, and the green turtle: Image would appear in the guest window's Status Bar.

In your case the guest dies off sooon as it boots from the CD-rom:
00:00:06.397143 VMMDev: Guest Log: BIOS: Booting from CD-ROM...
00:00:06.659549 Display::i_handleDisplayResize: uScreenId=0 pvVRAM=000000000c4b0000 w=1024 h=768 bpp=24 cbLine=0xC00 flags=0x0 origin=0,0
00:00:18.802251 Changing the VM state from 'RUNNING' to 'GURU_MEDITATION'
00:00:18.802283 Console: Machine state changed to 'GuruMeditation'
00:00:18.802483 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00:00:18.802484 !!
00:00:18.802484 !!         VCPU0: Guru Meditation 1155 (VINF_EM_TRIPLE_FAULT)
The first log lines "Attempting fall back to NEM" shows that a service that uses Microsoft Hyper-V is running on your host PC. Normally your PC is of the type and OS where Virtualbox can attempt to run the guest using the Hyper-V engine. This arrangement is still being developed and isn't 100% yet. In your case the guest goes guru.

To turn Hyper-V off completely, do this:

1. Shut down all programs. You will have to reboot your host.

2. Look into the 64-bits tutorial, 2nd post, points 2 & 3 and ensure that none of these things are running.

3. Find the Command Prompt icon, right click it and choose Run As Administrator.

4. Enter this command:
bcdedit /set hypervisorlaunchtype off
5. Enter this command:
shutdown -s -t 2
6. When the computer turns off, unplug it for 20 seconds. Then plug it in again and boot up Windows 10.

Your Virtualbox should be running now. If the green turtle still appears and the tell-tale lines are in the log, try all the steps again. If you don't get the standard virtualization icon, post back exactly what you did and we'll try to help some more.

For further info, see I have a 64bit host, but can't install 64bit guests and https://www.tenforums.com/tutorials/139 ... puter.html
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