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我已经按照RVM网站中的指南安装RVM并且我已经安装了rubies:

syed@rails:~$ rvm list

rvm rubies

   ruby-1.8.7-p302 [ i386 ]
=> ruby-1.9.2-p0 [ i386 ]

正如您所看到的,我将ruby-1.9.2设为默认值.

这是我的gem目录:

syed@rails:~$ rvm gemdir
/home/syed/.rvm/gems/ruby-1.9.2-p0

现在,我试图安装rails,我抛出以下错误:

syed@rails:~$ gem install rails
ERROR:  While executing gem ... (Errno::EACCES)
    Permission denied - /home/syed/.gem/specs

我甚至做了这个,没有对错误产生任何影响:

syed@rails:~$ chown -R syed /home/syed/.rvm/

目前,我的环境看起来像这样:

syed@rails:~$ gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.9.2 (2010-08-18 patchlevel 0) [i686-linux]
  - INSTALLATION DIRECTORY: /home/syed/.rvm/gems/ruby-1.9.2-p0@rails3
  - RUBY EXECUTABLE: /home/syed/.rvm/rubies/ruby-1.9.2-p0/bin/ruby
  - EXECUTABLE DIRECTORY: /home/syed/.rvm/gems/ruby-1.9.2-p0@rails3/bin
  - RUBYGEMS PLATFORMS:
    - ruby …