'How to enable VT-x from linux command line

Is there a way to enable VT-x from linux (not Windows) command line without having to reboot and enter the BIOS? Would be very useful since I don't have access to the server to enter the BIOS GUI.



Solution 1:[1]

Both on Windows and Linux you can manage the VMs from the command line using VBoxManage tool as long as the Vt-d is enabled in the BIOS. I'm not clear on why the nested-VTX function in the VirtualBox VM parameter appears "uncheckable" or unavailable anyhow. I've found this command very handy for the case:

VBoxManage modifyvm [name_of_vm] --nested-hw-virt on

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Solution Source
Solution 1 Deivit Long