Technically you should be able to upgrade. but this is BETA software and there is no warranties.
I would backup my data and Reinstall from scratch. What I do every new Nevada Build is that I have my HOME directory on a separate ZFS filesystem which I export with # zpool export tank before I reinstall the the new build on the system disk . Then I just import my HOME filesystem again . the HOME filessystem is close to 300 GB by now. //Lars This message posted from opensolaris.org
