[BitVisor-devel-en:103] Re: Compiling for Virtualbox

[Dr. Lonnie Cumberland, PhD]

Hi All,

I have been working to get some type of bitvisor output to see if it is 
booting up properly in Virtualbox 7 (x86_64) Windows 10 and it seems to 
be fine, but things just "hang up" when try to boot Ubuntu 22.04 after 
booting Bitvisor. In  the below image, I started the "shell.efi" to run 
the "loadvmm.efi" directly so that I could get the output to see what 
was happening. Normally, it just boots bitvisor and then  goes back to 
Grub so that I can select Ubuntu 22.04 after which it just seems to hang 
up and I do not know why.




Any thoughts on what is happening here?

Would truly appreciate some help on this, if possible.

Thanks
Lonnie

On 2/10/2024 2:31 PM, Dr. Lonnie Cumberland, PhD wrote:
> Hi All,
>
> Just a quick update.  I had to enable EFI Booting in Virtualbox to get 
> bitvisor to boot through, which it seems to do now and then goes back 
> to the Grub menu so that I can choose my Ubuntu 22.04.
>
> Then after I choose to boot the Ubuntu OS, then the screen just goes 
> blank and nothing seems to happen.
>
> Without bitvisor the Ubuntu OS boots up normally fine.
>
> thoughts?
>
> Thanks
> Lonnie
>
> On 2/10/2024 2:25 PM, Dr. Lonnie Cumberland, PhD wrote:
>> Hello All,
>>
>> I am working with bitvisor and am trying to get it to run under 
>> Virtualbox 7.0 on my Windows 10 x86_64 system and am using this guide:
>>
>> https://qiita.com/morimolymoly/items/a571942880d8ba55f037
>>
>> I am wondering if you have been able to get things to work with 
>> virtualbox since I seem to be having problems in that bitvisor seems 
>> to load properly when I select it from Grub and then the Grub menu is 
>> presented again so that I can choose my new Ubuntu 22.04 (x64) to 
>> boot under bitvisor.
>>
>> When booting bitvisor, I am getting error messages:
>>
>> "
>> Loading bitvisor
>> Error: Invalid Signature
>> Error: You need to load the kernel first
>> "
>>
>> Any ideas as to where these are coming from?
>>
>> Alternatively, if I do not boot up bitvisor and just try to boot up 
>> the Ubuntu 22.04 first and directly then it boots up just fine.
>>
>> I am not sure what is happening here and wanted to get your thoughts 
>> if you would like to share them with me.
>>
>> PS) Side note -- I tried to boot pre-compiled bitvisor (v1.4) on some 
>> modern hardware (Intel NUC 7) that is capable of running many 
>> different type-1 hypervisors, but bitvisor seemed to have a CPU 
>> problem and I have not yet learned how to get some debug information 
>> to see what may be happening so learning to debug bitvisor is 
>> definitely high on my list of things to really learn now as well.
>>
>> Have a great evening, my friend.
>> Lonnie 
>
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