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= How to upgrade/downgrade Rubygems:
== For RubyGems 1.5.0 and 1.5.1:
RubyGems 1.5.0 and 1.5.1 shipped with a broken <tt>gem update --system</tt>.
You will need to use the Manual Upgrade Recipe below.
== On Ruby 1.9.x:
=== From stock ruby shipping with 1.9:
Use the Normal Upgrade Method below. (finally!)
== On Ruby 1.8.x:
=== From rubygems 1.3.x:
Use the Normal Upgrade Recipe below.
=== From rubygems 1-1.x through 1.2.x:
RubyGems 1.1 and 1.2 have problems upgrading when there is no
rubygems-update installed. You will need to use the following
instructions if you see "Nothing to update".
Use the Manual Upgrade Recipe below.
=== From rubygems < 1.1.x:
Use the Normal Upgrade Recipe below.
== Downgrade Recipe
=== Normal Downgrade
==== With rubygems 1.5.2 and higher:
$ gem update --system 1.3.7
==== With rubygems 1.5.1 and lower:
Use sudo/su as appropriate:
$ gem install rubygems-update -v 1.3.7
$ update_rubygems _1.3.7_
Replace 1.3.7 with whatever version you want to downgrade to. This
recipe can also be used to upgrade to a specific version instead of
the latest.
Do make sure that you don't have any other versions of rubygems-update
installed when you run the second command.
=== 1.9.2 Downgrade from Rubygems 1.4.x+ to stock 1.9 rubygems:
Use sudo/su as appropriate:
$ ruby --disable-gems -S gem which rubygems
~/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems.rb
$ rm ~/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems.rb
$ rm -rf ~/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems
$ gem -v
1.3.7
== Upgrade Recipes
=== Normal Upgrade
Use sudo/su as appropriate:
$ gem update --system
=== Manual Upgrade
If you have an older version of RubyGems installed, then you can still
do it in two steps:
Use sudo/su as appropriate:
$ gem install rubygems-update
$ update_rubygems
=== Manual Install
If you don't have any RubyGems install, there is still the pre-gem
approach to getting software, doing it manually:
Use sudo/su as appropriate:
* Download from: https://rubygems.org/pages/download
* Unpack into a directory and cd there
* Install with: ruby setup.rb
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