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Asked: 2026-05-16T00:19:28+00:00

I’m running Ruby 1.9.1p243 on CentOS, and I decided to install rvm to handle

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I’m running Ruby 1.9.1p243 on CentOS, and I decided to install rvm to handle upgrading to 1.9.2 or downgrading to 1.8.7 (whichever turns out to work better for rails3).

I followed the instructions here: http://rvm.beginrescueend.com/rvm/install/ and everything installed correctly. I was able to compile and install Ruby 1.8.7, 1.9.1, and 1.9.2.

However, if I try to actually switch to one of the rvm installed Rubies, with rvm use 1.8.7, for example, nothing works. My system still uses the Ruby I have installed in /usr/local/bin/ruby.

An example of the output I get:

$ rvm use 1.8.7
$ ruby -v
ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-linux]
$ which ruby
/usr/local/bin/ruby
$ rvm use 1.9.2
$ ruby -v
ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-linux]
$ which ruby
/usr/local/bin/ruby

I have no idea why this is happening, and I can’t seem to find anything online about the issue either. Any help would be appreciated.

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1 Answer

  1. Editorial Team

    Typically rvm support is easiest via IRC (#rvm on freenode) – in this particular case, what does running “type rvm | head -n1” show? it should show “rvm is a function”. If not, that means the line to source rvm isn’t being run correctly and hence switching doesn’t work. Typically this means you either have a return in your ~/.bashrc or you missed adding the line to source rvm.

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