mysql - 为什么安装成功后在gem list下没有出现mysql？

Question

这是交易:
$ gem -v

1.3.7  

$ gem 环境

RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.9.2 (2010-08-18 patchlevel 0) [x86_64-darwin10.4.0]
  - INSTALLATION DIRECTORY: /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial
  - RUBY EXECUTABLE: /Users/harriett/.rvm/rubies/ruby-1.9.2-p0/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-10
  - GEM PATHS:
     - /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial
     - /Users/harriett/.rvm/gems/ruby-1.9.2-p0@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

$ sudo env ARCHFLAGS="-arch i386"gem install mysql -- --with-mysql-config=/Applications/MAMP/Library/bin/mysql_config

Building native extensions.  This could take a while...  
Successfully installed mysql-2.8.1  
1 gem installed  

$ gem 列表 mysql

* LOCAL GEMS *  

为什么不显示？
当然，当我在 ruby​​ 程序中需要“mysql”时，我得到:

`require': no such file to load -- mysql (LoadError)  

Answer 1

您的 Ruby 安装由 RVM 管理。请参阅 RVM 站点上的“DO NOT use sudo...”。

尝试在不使用 sudo 的情况下安装它，它应该会显示在您的 gemlist 中。