Grails 2.0.0 Stable released for Ubuntu based Linux distributions.
Please refer here for release notes.
These packages are now available for download on our PPA at LaunchPad for Ubuntu based Linux Distributions.
Easy installation instructions can be found on this page.
This release is available for Ubuntu Lucid, Maverick, Natty and Oneiric. Also on Linux Mint Isadora, Julia, Katya and Lisa.