I have followed all the Knowledge Base articles I can find on the topic. http://kb.parallels.com/en/122735 http://kb.parallels.com/en/122932 http://kb.parallels.com/123215 I have looked through as many forum posts as I can (FYI this forum setup is not great for that) access. I have tried to use vm.bios.efi=0 , with no success. I have tried the install from my legal retail DVD, a .dmg, and a cdr Master image. The DVD and CDR report as "Unable to detect operating system". The DMG detects as "OS X", but opens to a black screen with no processing or messages. When I manually assign the physical DVD drive I finally manage to get... "is_file_exists(com.apple.boot.P/kernelcache)" Followed by... "The virtual machine processor was rest by the operating system." And it just loops from there until I kill the VM. Are there any other settings or configuration files I can work with? Any other Boot Flags that may apply? Host Machine: Mac Pro 2008 (3,1) , El Capitan 10.11.6, 12 GB RAM, GTX 980 (NVIDIA web drivers 346.03.15f11) I am currently running on the Trial version of Parallels 13. I will not be buying it if I cannot get Mac OS X 10.6 Snow Leopard Server working on it within the 7 days allotted. VirtualBox is able to successfully install and run the 10.6 Server, it just doesn't currently have good hardware access and support tools.
Hi Please remove all entered boot flags. They aren't needed. In order to help us debug the issue, enter the flag "vm.efi.debug=1" - it is just for logging If you are not sure that image is valid, please recreate it (be sure while taking image from DiskUtility to thake the image from the whole DVD, not just from the partition with Mac OS installation) or use DVD to install Mac Guest. If there is any trouble with that, wihtout shutting down the VM please go to menu of Parallels Desktop Help -> Send Technical Data.. and post here the number of the sent report
