title: Curl Certificate Error when Using RVM to install Ruby 1.9.2
body: <p>RVM is running into a certificate error when trying to download Ruby 1.9.2.  It looks like <code>curl</code> is having a certificate issue but I am not sure how to bypass it.  I have included the exact error info below.</p>
  
  <pre><code>$ rvm install 1.9.2
  Installing Ruby from source to: /Users/willdennis/.rvm/rubies/ruby-1.9.2-p180, this may take a while depending on your cpu(s)...
  
  ruby-1.9.2-p180 - #fetching 
  ERROR: Error running 'bunzip2 '/Users/willdennis/.rvm/archives/ruby-1.9.2-p180.tar.bz2'', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/extract.log
  ruby-1.9.2-p180 - #extracting ruby-1.9.2-p180 to /Users/willdennis/.rvm/src/ruby-1.9.2-p180
  ruby-1.9.2-p180 - #extracted to /Users/willdennis/.rvm/src/ruby-1.9.2-p180
  Fetching yaml-0.1.3.tar.gz to /Users/willdennis/.rvm/archives
  
  curl: (60) SSL certificate problem, verify that the CA cert is OK. Details:
  error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
  More details here: http://curl.haxx.se/docs/sslcerts.html
  
  curl performs SSL certificate verification by default, using a "bundle"
   of Certificate Authority (CA) public keys (CA certs). The default
   bundle is named curl-ca-bundle.crt; you can specify an alternate file
   using the --cacert option.
  If this HTTPS server uses a certificate signed by a CA represented in
   the bundle, the certificate verification probably failed due to a
   problem with the certificate (it might be expired, or the name might
   not match the domain name in the URL).
  If you'd like to turn off curl's verification of the certificate, use
   the -k (or --insecure) option.
  ERROR: There was an error, please check /Users/willdennis/.rvm/log/ruby-1.9.2-p180/*.log. Next we'll try to fetch via http.
  Trying http:// URL instead.
  
  curl: (60) SSL certificate problem, verify that the CA cert is OK. Details:
  error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
  More details here: http://curl.haxx.se/docs/sslcerts.html
  
  curl performs SSL certificate verification by default, using a "bundle"
   of Certificate Authority (CA) public keys (CA certs). The default
   bundle is named curl-ca-bundle.crt; you can specify an alternate file
   using the --cacert option.
  If this HTTPS server uses a certificate signed by a CA represented in
   the bundle, the certificate verification probably failed due to a
   problem with the certificate (it might be expired, or the name might
   not match the domain name in the URL).
  If you'd like to turn off curl's verification of the certificate, use
   the -k (or --insecure) option.
  ERROR: There was an error, please check /Users/willdennis/.rvm/log/ruby-1.9.2-p180/*.log
  Extracting yaml-0.1.3.tar.gz to /Users/willdennis/.rvm/src
  ERROR: Error running 'tar zxf /Users/willdennis/.rvm/archives/yaml-0.1.3.tar.gz -C /Users/willdennis/.rvm/src --no-same-owner', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/yaml/extract.log
  /Users/willdennis/.rvm/scripts/functions/packages: line 55: cd: /Users/willdennis/.rvm/src/yaml-0.1.3: No such file or directory
  Configuring yaml in /Users/willdennis/.rvm/src/yaml-0.1.3.
  ERROR: Error running ' ./configure --prefix="/Users/willdennis/.rvm/usr"  ', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/yaml/configure.log
  Compiling yaml in /Users/willdennis/.rvm/src/yaml-0.1.3.
  ERROR: Error running '/usr/bin/make ', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/yaml/make.log
  Installing yaml to /Users/willdennis/.rvm/usr
  ERROR: Error running '/usr/bin/make install', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/yaml/make.install.log
  ruby-1.9.2-p180 - #configuring 
  ERROR: Error running ' ./configure --prefix=/Users/willdennis/.rvm/rubies/ruby-1.9.2-p180 --enable-shared --disable-install-doc --with-libyaml-dir=/Users/willdennis/.rvm/usr ', please read /Users/willdennis/.rvm/log/ruby-1.9.2-p180/configure.log
  ERROR: There has been an error while running configure. Halting the installation.
  </code></pre>
  
  <p>How can I resolve or avoid this error?</p>