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-rw-r--r--doc/install/installation.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/install/installation.md b/doc/install/installation.md
index 74256214be1..0d7f126167b 100644
--- a/doc/install/installation.md
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@@ -113,6 +113,8 @@ Then select 'Internet Site' and press enter to confirm the hostname.
# 2. Ruby
+The use of ruby version managers such as [RVM](http://rvm.io/), [rbenv](https://github.com/sstephenson/rbenv) or [chruby](https://github.com/postmodern/chruby) with GitLab in production frequently leads to hard to diagnose problems. Version managers are not supported and we stronly advise everyone to follow the instructions below to use a system ruby.
+
Remove the old Ruby 1.8 if present
sudo apt-get remove ruby1.8