Just finished installing this. Upgrade took about 35 minutes total on my macbook air (2011). Was able to run a local Rails 4 app connecting to MySQL with no problems after the upgrade. Trying to install ruby 2.0-p247 now and all the gems and see what happens.
Isn't 2.0.0-p247 the system ruby? My rvm install was p195; after running "rvm use system" it's now p247 (ruby 2.0.0p247 (2013-06-27 revision 41674) [universal.x86_64-darwin13])
Is there nothing equivalent to virtualenv for Ruby? It'd be nice to be able to use the system Ruby and just get gem to install into an isolated project specific ___location.
All worked fine. ruby 2.0-p247 compiled and install fine using rvm. Postgres backed Rails app worked too (using homebrew installed versions of postgres/mysql).