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<api>
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  <query>
    <pages>
      <page pageid="50" ns="0" title="Ruby">
        <revisions>
          <rev xml:space="preserve">==Problems with mysql or mysql2 gem on RHEL==

If getting an error like the following when trying to install mysql2 gem:

&lt;pre&gt;
# gem install mysql2
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

        /usr/local/rvm/rubies/ree-1.8.7-2011.03/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... no
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/usr/local/rvm/rubies/ree-1.8.7-2011.03/bin/ruby
        --with-mysql-config
        --without-mysql-config


Gem files will remain installed in /usr/local/rvm/gems/ree-1.8.7-2011.03/gems/mysql2-0.3.6 for inspection.
Results logged to /usr/local/rvm/gems/ree-1.8.7-2011.03/gems/mysql2-0.3.6/ext/mysql2/gem_make.out
&lt;/pre&gt;

The error &lt;tt&gt;Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers&lt;/tt&gt; it typically due to some library or devel package being missing.  In this case we needed mysql-devel:

&lt;pre&gt;
yum install mysql-devel
&lt;/pre&gt;

Then, you must pass in the location of the mysql config into the gem command:

&lt;pre&gt;
# gem install mysql2 -- --with-mysql-config=/usr/lib64/mysql/mysql_config 
Building native extensions.  This could take a while...
Successfully installed mysql2-0.3.6
1 gem installed
&lt;/pre&gt;</rev>
        </revisions>
      </page>
      <page pageid="15" ns="0" title="Samba">
        <revisions>
          <rev xml:space="preserve">==General Notes==
Just a few notes

&lt;pre&gt;
/etc/samba/smb.conf
testparm
/etc/samba/smbusers
smbpasswd -a username
smbclient -L server -U username
mount.cifs //host/share /mnt/pnt -o user=username
//host/share /mnt/pnt cifs credentials=/etc/samba/pub.cred 00   ###selinux
&lt;/pre&gt;</rev>
        </revisions>
      </page>
    </pages>
  </query>
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