Installation when you're not working from a completely bare hard drive seems to stymie so many Linux distros. I keep finding myself back on Ubuntu and Fedora be

Installation when you're not working from a completely bare hard drive seems to stymie so many Linux distros. I keep finding myself back on Ubuntu and Fedora because they seem to be the only two that put any effort at all into making sure you can dual-boot without spending hours reading manpages and hoping a wrong flag won't destroy your bootloader and other OS.