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by mhio 1650 days ago
> I wonder what's the easiest[1] way to install an OS in a VM if you don't have an ISO

I can't recall seeing any generic disk image alternatives to ISO's. It's generally download a virtual disk image (e.g Vagrant), and if the image is not in the right format convert it before attaching.

The only other work flow I use is to netboot with iPXE [0]. All it needs is a http(s) endpoint for the initrd/kernel and away you go, but there is a bit of investment in setting up the initial boot environment.

[0]: https://ipxe.org/