How to upgrade/downgrade Rubygems:

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 gem update --system. 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 instru

你可能感兴趣的:(嵌入式硬件,linux)