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Trying to install MacOS Sierra on VB running on MacOS Mojave. Have tried every setting possible, but as soon as it starts it goes straight to UEFI Shell. I have read and tried going to Boot From File where I have read would be 2 entries. Nothing there most of time and if there is no help regardless of selection. Is it even possible to install a MacOS guest on a MacOS Host?

Moving to "OSX Guests" from "OSX Hosts" because the problem you're having is to install the guest.

burobaaje wrote:as soon as it starts it goes straight to UEFI Shell

That means that you don't have a bootable ISO. Where did you get the ISO from? How did you create it?

burobaaje wrote: Is it even possible to install a MacOS guest on a MacOS Host?

Absolutely. As long as your ducks are in a row...

socratis wrote:That means that you don't have a bootable ISO. Where did you get the ISO from? How did you create it?

I have an installer for Sierra and used DiskUtilty to make cd and then terminal to create iso file from cd. I then loaded it into the setup and tried to start installation.

No, that won't work. If by "I have an installer" you mean an app for the installation, please take a look at InstallerApp2ISO.app from "granada29". It's a GUI app that encapsulates the functionality of InstallerApp2ISO.sh to create a bootable ISO. Start with that and see where we get stuck next.

socratis wrote:No, that won't work. please take a look at post from "granada29".

Will do and let you know. Thanks!

socratis wrote: Start with that and see where we get stuck next.

Could not install Sierra it hangs on attempt and the last thing on the console is:

MacBook-Air.local com.apple.spc.launchd[1] (come.apple.bsd.dirhelper.172) <Warning>: Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.bsd.dirhelper.

But the good news is that I created an iso for Yosemite and it installed and is useable. It does hang up if I try somethings, but I can live with that as I only need it to run Filemaker Pro 13 which I will try to install later. Thanks for the help.

burobaaje wrote:Could not install Sierra it hangs on attempt

Wait a minute... If it's greater than 10.12.4, then that's a known issue. See ticket #16644: Installation of clean OSX 10.12.4 fails.

burobaaje wrote:But the good news is that I created an iso for Yosemite

Great, glad you got something working for you...