Re: reversible dual-boot test station, updated

I've refreshed this write-up based on a system with Windows 10 and Fedora 39 on LUKS on Btrfs, "installing" Fedora 40 along side via dnf system-upgrade. The two installations share /boot, /boot/efi, /home, with the two root file systems on Btrfs in their own subvolumes. https://fedoraproject.org/wiki/User:Chrismurphy/Draft/dualboot_teststation Features: * no re-partitioning; * no resizing; * no extra drive; * no installation or reinstallation, system upgrade is used instead; * reversibility, or undoability, i.e. you can delete the "test OS", or for that matter the older system root, with just a few steps. -- Chris Murphy