Haiku
This is indeed another interesting distro, because it's neither Windows nor Linux. It's the first such OS I've tried to install. I'm having some issues with the installer, after I got it to run. This may turn out to be a very brief look, if I can't get it installed, but I thought some others might want to go along for the ride.
HINT: If you're going to try this distro in a VirtualBox VM, be sure to identify the OS as "Other/Unknown (64-bit)" When I first created the virtual disk drive for this, after I selected the Haiku .ISO file that I'd downloaded, the dialog populated the type as "Other/Unknown," which causes it to expect a 32-bit OS. I've now learned to open that drop-down and select the one for 64-bit OSs. Thanks to @elfprince for helping me get past that roadblock.
With a proper VM created, here's the result. Since I haven't gotten this installed yet, I'll post a number of images here, to illustrate the installer more than I normally would. Since I'd created a virtual disk drive for a VM, I chose the [Install Haiku] button, but apparently you can also choose a live session.
Moving on, we get a disclaimer telling us to be aware that it's a beta version, and here are some things you need to know. I scrolled that listbox down, so you can see all the text that matters.
Typically I partition a disk before I try to use it, because I have some strong opinions about swap size, and so on. I had no idea what was needed for this OS, though, and I wouldn't expect a typical partition editor to support the Be file system as a format. And I don't think an external partition manager could affect a virtual disk drive that's not part of a VM. So I was glad to see that this installer provides a way. Notice the [Set up partitions] at the bottom left.
Closing the notice reveals source and destination combo boxes. The source default makes sense to me, but the destination doesn't. I would have expected to see it offer the 32 GB virtual disk I'd prepared for it. I'll go ahead and accept the default, though, since there's no other choice available.
So I click the button to start the partitioning process. Here I can see that it really does know the destination. And an instruction suggests that I select a partition from the list below. I'll pick the first one.
This is as far as I got with this before I started this review. I couldn't get any farther, because there appears to be no way to actually create those partitions as shown. I can choose a partition, but then what should I do with it? There's no [Apply] button, no [Back] button, and most of all, no [Continue] or [Next] button, so I can't move on.
As far as I can tell, I'm stuck. If I right-click on the graphical representation of the partition above, a context menu appears, but every menu item is grayed-out (disabled) except for Open with disk probe. Here's what happens when that's selected.
I wanted to take it slowly this time, being careful to read everything, make no assumptions, and make sure I made no typos. I don't know of anything I could have done differently, other than choosing the live session instead of the installer. I really wanted to create the VM, and I'm sorry this trip didn't end differently.
As I re-read this, it occurred to me that some live sessions offer to run an installer as well. I'm going to try this one more time, and if that's the case here as well, and if the live session has created the partitions, I'll come back and add a continuation post. I'm respectfully skeptical, though, so I believe this is probably the end of the line.