Installing Linux Lite on VirtualBox Virtual Machine / MacOS ?

[Quouab]

That's what I had tried to do, as I remembered doing years ago, but it gave several errors as per the zipped jpeg. As explained, the reply in that thread on MacRumors was telling the poster to do it from the guest instead. Which also seemed a bit strange to me.

All I can see in the jpeg is what seems to be a guest additions install process failed, no "vbox extpack", was this on the host or the guest? Cause it's not clear really. Also, Linux Lite's based on Ubuntu 20.04 and you're using VBox 4.3.40 which is quite old (2016),so there may be some compatibility problems there since the error reads unknown X windows system installed. You haven't mentioned which "vbox extpack" version you're using, I guess is 4.3.40 but it'll help if you clarify that for us. Finally, you might have a better informed answer at the VBox forum https://forums.virtualbox.org/viewforum.php?f=8 since they surely know a lot more than any of us how their software works

Sorry for the confusion: I got those terminal-looking errors in the jpeg after “inserting” the Guest Additions CD image from the VB Manager's Devices menu and running autorun.sh from the Linux file manager. That's what I was referring to in the first posts. It's later on, only after coming across that thread in MacRumors, that I downloaded “vbox extpack” in the guest, tried to run it and immediately got that blunt error. But yes, the version of this “vbox extpack” (see the link) is 4.3.40.

From your previous reply, do you suggest that I try to run it from the host? How should I do this? Also, while I was on the download page on Oracle's site I downloaded (in the Mac host) a package called “Oracle_VM_VirtualBox_Extension_Pack-4.3.40-110317a.vbox-extpack”. But I wouldn't quite know what to do with it either.

But yes, it's possible that 4.3.40 (the latest to run in Snow Leopard) is too old for Linux 20. In which case...

I'd rather wait for your replies before venturing on the VB forums. Some years ago both a family member and myself spent lots of time there trying to understand, among other things, how to run an older Mac OS in a VM on a newer Mac, using VB v.6. And got lost, and gave up.

Now, there's one thing I've discovered today, that may or may not be related: my machine has a 4 core processor, but if I try to tell Linux Lite to use more than one, it won't launch at all. The same is true of Lubuntu. While an XP VM that was installed a few months ago and runs without the slightest problem does so set to use all four processors.