<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> 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 <div class="moz-cite-prefix">On 2/10/2024 2:25 PM, Dr. Lonnie Cumberland, PhD wrote: </div> <blockquote type="cite" cite="mid:1fed497c-9da6-47ee-9462-e2f08ecdfa00@outstep.com"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> 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: <a class="moz-txt-link-freetext" href="https://qiita.com/morimolymoly/items/a571942880d8ba55f037" moz-do-not-send="true">https://qiita.com/morimolymoly/items/a571942880d8ba55f037</a> 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 </blockquote> </body> </html>