尝试使用rvm安装ruby时出现以下错误:
$rvm install 1.9.3
Searching for binary rubies, this might take some time.
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system..................................................................................................
Error running 'requirements_debian_update_system ruby-1.9.3-p448',
please read /home/troy/.rvm/log/1379872584_ruby-1.9.3-p448/update_system.log
Requirements installation failed with status: 100.
你能帮我解决这个问题吗？
我尝试重新启动我的 Apache 服务器，我对此很陌生。我很好奇 apache2 restart 是做什么的？apachectl restart 是做什么的？