virtualbox.org

Just to close this thread. I installed 5.2.22 for the third time today, reverting back to 5.2.8 each time to verify that Solaris 11 would still boot. Each time I went back to 5.2.8 Solaris 11 booted fine. At the third attempt to install 5.2.22 Solaris 11 booted successfully so I do not know what hap...

I can run Solaris 11 in VBox 5.2.8 and am running that now. If I upgrade to 5.2.22 I cannot boot Solaris 11, and have to revert to 5.2.8 so I do not think you have a solution to my problem.

Somewhere between the last release I had used (5.2.8) and 5.2.22 VirtualBox has lost the ability to boot Solaris 11 on my Windows 10 PC. It would appear that the drop down in the version of Solaris is now missing Solaris 11 64 bit as an option and therefore VB tries to boot this as a 32 bit Solaris ...