UNetbootin allows for the installation of various Linux/BSD distributions to a real partition, so it’s no different from a standard install, only it has the advantage that it needs no CD. It can thus be used to either create a standard dual-boot install, or replace the existing OS entirely with GNU/Linux. This is meant for people who want to install a Linux distribution but don’t have a CD-R to burn, lack a CD writer, or they want to install on a computer that doesn’t have a CD-ROM drive, like an ultra-portable laptop.
The following distributions are supported:
Ubuntu, Fedora, openSUSE, CentOS, Debian, ArchLinux, FreeBSD, NetBSD, Frugalware, Foresight Linux, Damn Small Linux, VectorLinux, Mandriva, Slackware etc…