On Mojave host, create boxes for previous macOS versions about macinbox HOT 4 OPEN

Hello, @NikolausDemmel, and thank you for this report. I (and others) have recently successfully created High Sierra VMs from Mojave. The error message you are getting suggests to me that your High Sierra installer app is corrupt (or incomplete). Likewise with the Sierra logs, it seems like the installer tool is exiting without installing anything because it can't find something that it is expecting to find.

I would consider trying to re-acquire the installer apps from a different source to see if that makes a difference. For instance, I've had success using this tool to download installer apps:

https://github.com/munki/macadmin-scripts/blob/master/installinstallmacos.py

You can use the --installer-dmg option with the images that that tool downloads.

from macinbox.

Thanks for your reply. The installers were downloaded through the app store on another Mac that is still on a previous version of macos, not sure why they might be corrupted.

Just to clarify. Would I be using the final disk image they installinstallmacos.py creates, oder the installers that it downloads? The readme over there says that the resulting disk image is specific for the hardware where it was created, so if I run it on my macmini host, can the resulting installer disk image be used for a virtualbox VM that runs on that host? Or should I run the installinstallmacos.py script inside the Mojave vm that i successfully created?

from macinbox.

One thing to look at is their size on disk; if they aren't ~6GB in size, they are missing pieces.

The issue that the README mentions of hardware-specific OS-installer-apps usually only comes up when you're using hardware that was released after the first version of the OS you're trying to install. The hardware I use to test is older than Sierra, so it may be that I haven't seen this issue for that reason.

Note that this issue could also apply when you aren't using the script, and are just manually downloading the installer app on one device, and moving it to another, as you said you have done.

If you run the installinstallmacos.py script on the macmini host, I would expect that the downloaded app installer images would install an OS that works in the VM. That's how it has worked for me and others.

from macinbox.

So, to clarify, try using installinstallmacos.py to download/assemble the dmg on the host macmini, and then use the macinbox --installer-dmg option to use that dmg to create the Vagrant box.

from macinbox.