我正在尝试在 VPS 服务器中托管 Rails 应用程序。服务器已经安装了 Apache，所以我尝试先安装乘客，然后安装乘客 apache 模块。
我以用户身份安装了 RVM，并安装了 ruby 1.9.3 并将其设置为默认 ruby。然后，我安装了 3.0.17 版的乘客 gem，因为我们正在迁移 rails 应用程序，旧服务器中的乘客版本是 3.0.17。我能够使用命令安装乘客 gem gem install passenger -v 3.0.17。
安装乘客后，我继续尝试passenger-apache-module使用passenger-install-apache2-module命令进行安装。我得到这个输出：
Checking for required software...
* GNU C++ compiler... not found
* Curl development headers with SSL support... not found
* OpenSSL development headers... not found
* Zlib development headers... not found
* Ruby development headers... found
* OpenSSL support for Ruby... found
* RubyGems... found
* Rake... found at /home/federaltitle/.rvm/wrappers/ruby-1.9.3-p448/rake
* rack... found
* Apache 2... found at /usr/local/apache/bin/httpd
* Apache 2 development headers... found at /usr/bin/apxs
* Apache Portable Runtime (APR) development headers... found at /usr/local/apache/bin/apr-1-config
* Apache Portable Runtime Utility (APU) development headers... found at /usr/local/apache/bin/apu-1-config
Some required software is not installed.
But don't worry, this installer will tell you how to install them.
Press Enter to continue, or Ctrl-C to abort.
当我按 Enter 时，我得到以下输出：
Installation instructions for required software
* To install GNU C++ compiler:
Please run yum install gcc-c++ as root.
* To install Curl development headers with SSL support:
Please run yum install curl-devel as root.
* To install OpenSSL development headers:
Please run yum install openssl-devel as root.
* To install Zlib development headers:
Please run yum install zlib-devel as root.
If the aforementioned instructions didn't solve your problem, then please take
a look at the Users Guide:
/home/federaltitle/.rvm/gems/ruby-1.9.3-p448/gems/passenger-3.0.17/doc/Users guide Apache.html
但是，当我尝试以 root 用户身份安装消息 ( yum install gcc-c++, yum install curl-devel, yum install openssl-devel, yum install zlib-devel) 中提到的库时，它表示所有库都已安装并且是最新的。
服务器详情
操作系统 - CENTOS 6.4 x86_64