[vbox-dev] (Bug?)VT-Bit

Ivo Smits Ivo at UFO-Net.nl
Fri Feb 3 18:02:56 GMT 2017

The .vbox-prev(ious) is a backup file. I think it is overwritten with a 
copy of the .vbox file every now and then when the .vbox file is 
modified. The .vbox file is the actual configuration file, and the one 
you have to edit to make this work. It is recommended to close 
VirtualBox completely and wait several seconds (for the VBoxSVC process 
to shut down) before editing the file.



Op 3-2-2017 om 12:45 schreef Jd Lyons:
> I changed my CPU from one that supports VT-x to one that doesn’t, now 
> none of my virtual machines will run
> Failed to open a session for the virtual machine *Tiger*.
> VT-x is not available (VERR_VMX_NO_VMX).
> Result Code: 	NS_ERROR_FAILURE (0x80004005)
> Component: 	ConsoleWrap
> Interface: 	IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
> I edited the .vbox-prev of the virtual machines, and added:
> <HardwareVirtEx enabled=“false”/>
> But every time I launch VB, it overwrites the settings, removes 
> <HardwareVirtEx enabled=“false”/>.
> I can’t access the Acceleration tab in VB, it’s greyed out, but it 
> must have the VT-x checkbox checked?
> Is there some preference file I need to delete?
> macOS Sierra 10.12.2
> VB 5.1.14 r112924 (Qt5.6.2)
> _______________________________________________
> vbox-dev mailing list
> vbox-dev at virtualbox.org
> https://www.virtualbox.org/mailman/listinfo/vbox-dev

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