Sabayon Linux Xfce 15.04
  https://www.sabayon.org/

Sabayon Linux Xfce is a freely distributed edition of the well known Sabayon Linux operating system that uses the lightweight Xfce desktop environment, as well as related open source packages and applications.
Availability, supported platforms and boot options

The distribution is available for download as Live CD ISO images. They can be written to USB flash drives or DVD discs, bootable directly from the BIOS of most PCs and laptops, but supported only on 64-bit architectures.

The default option and the recommended one, when booting the operating system from the Live CDs, is "Start Sabayon Xfce," which will automatically be executed If the user presses no key within 10 seconds.

The boot prompt is quite familiar, almost identical with the one found on some Ubuntu Linux operating systems. It allows users to directly install the operating system, without testing it, which is not recommended for novices.

In addition, it is also possible to run a memory diagnostic test, check the disc for defects (only if booting from a DVD media), drop to a shell prompt using default settings or the verbose mode (without boot splash), as well as to enter the safe or debug modes (for advanced users).