"Many of the most commonly used tools were outdated.
And most users begin their *nixy knowledge with Linux, and when
faced with Solaris they don't find the GNU tools they have grown
accustomed to, and thus don't like the platform. OpenSolaris has
been started to fix some of those issues, however, nexneta takes
this concept to an extreme. It basically takes the ubuntu userland
and plugs underneath it an opensolaris kernel. Nexenta also
integrates unique solaris features such as zfs with ubuntu tools
like apt-get to provide system wide transactional safe upgrades. I
really really like this feature. It basically means you can
dist-upgrade your entire system, and once up on the new version, if
something is badly broken, you can very easily boot back an earlier
snapshot (pre-upgrade) image of your system. We will explore those
features later, however, for now, let's get started installing NCP2
alpha. As usual I am choosing to go with the latest and greatest
and least stable version ;)"