I'm having difficulty creating an ESXi 7U3 vm inside of VirtualBox 6.1.38:
Is there something that I've overlooked? Is there a workaround for creating an ESXi vm inside of VirtualBox on a desktop system?
I do not believe that nested virtualization is possible using VirtualBox on an Intel desktop CPU (e.g., Intel Core i7-8550U)!
On Stackoverflow, I found a thread from a few years ago ("Virtualbox enable nested vtx/amd-v greyed out") with links to two separate forum posts that address this subject:
First: Nested VT-x/AMD-V not working
Second: Nested virtualization/AMD-V in the guest: Success stories (and failures)
Both are a few years old. But both seem pretty definitive - Though it is still possible to enable nested VT-x/AMD-V on my Intel Core i7-8550U using this workaround (See attached screenshot):
$ VBoxManage modifyvm <VirtualMachineName> --nested-hw-virt on
But that doesn't mean that it works - It just means that it's "enabled".