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[Solved] A critical error has occurred while running the virtual machine

Posted: 21. Aug 2018, 09:14
by harmbakker
I did a new installation of Kubuntu 18.04 and installed also VirtualBox.
I had made copies of the virtual machines of my former installation.

Creating a virtual machine with (a copy of) an existing virtual disk of a Windows 7 VM went OK. It works as it should.

Creating a virtual machine with (a copy of) an existing virtual disk of a Windows XP VM went wrong. It first looked OK. I could start the VM, but after some time the massage
"A critical error has occurred while running the virtual machine and the machine execution has been stopped."
appeared.

I hope someone can help me to recover. I have some applications that works only on XP.

As the log file is to big (225kB) I attached a zip-file.

Re: A critical error has occurred while running the virtual machine

Posted: 21. Aug 2018, 09:29
by andyp73
VBox.log wrote:
VirtualBox VM 5.2.10_Ubuntu r121806 linux.x86 (Jun 15 2018 16:14:07) release log
You should consider upgrading to the latest version (5.2.18 as of writing) and also using the genuine version of VirtualBox available from the Linux Downloads page rather than the tribute act (thanks mpack) version you have. That being said...
VBox.log wrote:
00:00:01.574555 HM: HMR3Init: Falling back to raw-mode: VT-x is disabled in the BIOS for all CPU modes
You need to enable this in the motherboard / PC / laptop BIOS. Your Intel i5-4440 CPU supports it. See your PC's manufacturer help on how to do this. Also, make sure that nothing else has an exclusive hold on the VT-x.

-Andy.

Re: A critical error has occurred while running the virtual machine

Posted: 22. Aug 2018, 09:04
by harmbakker
Hi Andy,

Thank you so much.
As I am not an experienced BIOS-manipulator, I sought and found an instruction video: https://www.youtube.com/watch?v=emKQ7MSRit8 to enable virtualisation.That indeed was the trick.

I don't still understand why the Win7 VM worked OK and the WinXP didn't, but I can go on.
Thanks again.

- Harm Bakker