Having some trouble running rvm install ree on a fresh CentOS 6.2 x86_64 minimal install.
Here's what it looks like:
[chili@projects ~]$ rvm reinstall ree
Removing /home/chili/.rvm/src/ree-1.8.7-2012.01...
Removing /home/chili/.rvm/rubies/ree-1.8.7-2012.01...
Removing ree-1.8.7-2012.01 aliases...
Removing ree-1.8.7-2012.01 wrappers...
Removing ree-1.8.7-2012.01 environments...
Removing ree-1.8.7-2012.01 binaries...
Installing Ruby Enterprise Edition from source to: /home/chili/.rvm/rubies/ree-1.8.7-2012.01
ree-1.8.7-2012.01 - #fetching (ruby-enterprise-1.8.7-2012.01)
ree-1.8.7-2012.01 - #extracting ruby-enterprise-1.8.7-2012.01 to /home/chili/.rvm/src/ree-1.8.7-2012.01
Applying patch 'tcmalloc' (located at /home/chili/.rvm/patches/ree/1.8.7/tcmalloc.patch)
Applying patch 'stdout-rouge-fix' (located at /home/chili/.rvm/patches/ree/1.8.7/stdout-rouge-fix.patch)
Applying patch 'no_sslv2' (located at /home/chili/.rvm/patches/ree/1.8.7/no_sslv2.diff)
Applying patch 'lib64' (located at /home/chili/.rvm/patches/ree/lib64.patch)
ree-1.8.7-2012.01 - #installing
'ruby' was not found, cannot install rubygems unless ruby is present (Do you have an RVM ruby installed & selected?)
ree-1.8.7-2012.01 - adjusting #shebangs for (gem irb erb ri rdoc testrb rake).
ree-1.8.7-2012.01 - #importing default gemsets (/home/chili/.rvm/gemsets/)
[chili@projects ~]$ which ruby
/usr/bin/which: no ruby in (/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/chili/.rvm/bin:/home/chili/bin)
[chili@projects ~]$ ruby -v
-bash: ruby: command not found
[chili@projects ~]$