The /usr move is a concept of moving various applications installed into the filesystem root to /usr prefix in order to unify the filesystem layout. Distributions which have made the /usr move: * Arch Linux * Chakra * Fedora * Mageia * Red Hat Enterprise Linux * Void Linux Distributions which have partially completed the /usr move: * openSUSE Distributions where /usr move is optional, but not default: * Debian * Gentoo * Ubuntu