VM VirtualBox doesn't allow to enable 64-bit guest on Ubuntu 12.04 and Lenovo G500S
Solution 1
It seems that I have already found the reason. Simply I was searching VT-x model in BIOS setup, but there was line called Intel Virtualization Technology and this one was disabled. After enabling all 64-bit options are visible in my VM. Question can be closed...
Solution 2
You may perform following steps:
- Goto to Bios options (hit F1/F2 or maybe F8/F9 depending on your board make).
- Goto Advanced Options
- Set Virtualization Option to Enabled
- Save, Exit and Restart the machine
That is it!!! It solved both the above problems for me :-)
Solution 3
It would seem as though the reason for this on any platform is that virtualization needs to be enabled on the system bios. I found that my setting, too, was labeled Intel Virtualization Technology. Once enabled, I had the option of installing 64-bit systems.
Filip
Updated on September 18, 2022Comments
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Filip over 1 year
I've installed VM VirtualBox v. 4.3.8 on my Ubuntu 12.04 LTS (Lenovo G500S with Intel 1005M processor) and I can't configure any 64-bit guest (nor Windows, neither other OS). Inslalation of Win 8.1 64-bit under 32-bit profile obviously fails... My processor supports VT-x technology, but in my BIOS there is no enable/disable option for VT-x. Is there any way to force VirtualBox to support 64-bit guest ?
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Jos about 10 yearsTry this:
VBoxManage modifyvm <vmname> --longmode on
, as explained here. -
Filip about 10 yearsI've found this before, no effect, but I assumed that after making this I should see 64-bit option in my vm settings, maybe I'm wrong and I should try to continue installation in 32-bit mode... ?
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Lekhnath over 9 yearsworked for me too in lenovo G510