我在全新安装的Mountain Lion上设置了RVM、Rails等。我遵循指南"如何安装Xcode, Homebrew, Git, RVM， &Ruby 1.9.3 on Snow Leopard, Lion, and Mountain Lion".
用Ruby(1.9.3)安装RVM后，我做了一个rvm requirement，似乎我应该使用Homebrew安装apple-gcc42:
Homebrew:
If you are using Homebrew, you can install the apple-gcc42 and required libraries from homebrew/dupes:
brew update
brew tap homebrew/dupes
brew install autoconf automake apple-gcc42
rvm pkg install openssl
当我到达OpenSSL包安装时，我得到以下错误，不知道如何继续:
marvin:~ george$ rvm --skip-autoreconf pkg install openssl
Fetching openssl-1.0.1c.tar.gz to /Users/george/.rvm/archives
######################################################################## 100.0%
Downloaded archive checksum did not match, archive was removed!
If you wish to continue with not matching download add '--verify-downloads 2' after the command.
Please note that it's required to reinstall all rubies:
rvm reinstall all --force
Updating openssl certificates
Error running 'update_openssl_certs', please read /Users/george/.rvm/log/openssl.certs.log
指定日志文件的内容如下所示，可能是因为OpenSSL存档已被丢弃:
[2012-12-26 22:23:04] update_openssl_certs
/Users/george/.rvm/scripts/functions/support: line 139: cd: /Users/george/.rvm/usr/ssl: No such file or directory
我使用hombrew安装opensll.
brew install openssl
如果这不起作用，请查看此链接以获取答案。
http://railsapps.github.io/openssl-certificate-verify-failed.html