linux - Install ruby on rails on centOS -

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these days ,i try install redmine (a web app based on ruby on rails) on centos.
followed offical guide on ruby website.however met problem:
in terminate:

[root@localhost aaa]# cd blog  [root@localhost blog]# rails -v rails 3.2.6      [root@localhost blog]# rails server     => booting webrick     => rails 3.2.6 application starting in development on http://0.0.0.0:3000     => call -d detach     => ctrl-c shutdown server     [2012-07-03 07:01:32] info  webrick 1.3.1     [2012-07-03 07:01:32] info  ruby 1.8.7 (2012-06-29) [i686-linux]     [2012-07-03 07:01:32] info  webrick::httpserver#start: pid=20517 port=3000     ...

it works well. when start app redmine.

[root@localhost aaa]# cd redmine [root@localhost redmine]# rails -v script/rails:6:in `require': no such file load -- rails/commands (loaderror)         script/rails:6 [root@localhost redmine]# rails server script/rails:6:in `require': no such file load -- rails/commands (loaderror)         script/rails:6 ...

the result makes me confused.any 1 can me.

sounds redmine rails 2.x , blog rails 3.x. i've solved problem using rvm & gemsets. can search other ways run multiple versions of rails.


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