Nexenta OS is a free and open source operating system combining the OpenSolaris kernel with GNU application userland. Nexenta OS runs on Intel/AMD 32-/64-bit hardware and is distributed as a single installable CD. Upgrades and binary packages not included on the CD can be installed from Nexenta OS repository using Advanced Packaging Tool. In addition, source based software components can be downloaded from network repositories available at Debian/GNU Linux and Ubuntu Linux.