title: DBD-mysql installed ,but still error "install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC"
body: <p>Install information:</p>
  
  <blockquote>
    <p>Using DBI 1.608 (for perl 5.008009 on x86_64-linux) installed in /usr/local/lib/perl5/site_perl/5.8.9/x86_64-linux/auto/DBI/</p>
  </blockquote>
  
  <p>error information:</p>
  
  <blockquote>
    <p>[root@datacenterETL DBD-mysql-4.020]# perl ../testConnect.pl 
    install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC (@INC contains: /usr/local/lib/perl5/5.8.9/x86_64-linux /usr/local/lib/perl5/5.8.9 /usr/local/lib/perl5/site_perl/5.8.9/x86_64-linux /usr/local/lib/perl5/site_perl/5.8.9 .) at (eval 3) line 3.</p>
  </blockquote>
  
  <p>Perhaps the <code>DBD::mysql</code> Perl module hasn't been fully installed, or perhaps the capitalisation of 'mysql' isn't right.</p>