[CentOS] MySQL on CentOS 6 broken? No 'mysql' database?

Tue Feb 7 00:57:53 UTC 2012
Larry Martell <larry.martell at gmail.com>

On Mon, Feb 6, 2012 at 5:51 PM, Jason T. Slack-Moehrle
<slackmoehrle at gmail.com> wrote:
> Hi Guys,
>
> I installed CentOS 6 and installed 'yum install mysql mysql-devel mysql-server'
>
> When I try and start MySQL I get:
> 120206 16:42:07 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
> /usr/libexec/mysqld: Table 'mysql.plugin' doesn't exist
> 120206 16:42:07 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
> 120206 16:42:07 InnoDB: Started; log sequence number 0 44233
> 120206 16:42:07 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
> 120206 16:42:07 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
>
>
>
> if I go look in /var/lib/mysql I see:
>
> -rw-rw----. 1 mysql mysql 10485760 Feb 5 16:53 ibdata1
> -rw-rw----. 1 mysql mysql 5242880 Feb 6 16:42 ib_logfile0
> -rw-rw----. 1 mysql mysql 5242880 Feb 5 16:33 ib_logfile1
> drwx------. 2 mysql mysql 4096 Feb 5 16:55 mysql
> drwx------. 2 mysql mysql 4096 Feb 5 16:55 test
>
>
>
> and the 'mysql' is empty.
>
> I dont understand, I have never had this issue. I assume that the 'mysql' directory should contain something?
>
> So with this, I cannot do anything to get MySQL going!
>
> I tried a 'yum upgrade' to make sure everything was up to date.
>
> [root at www mysql]# cat /etc/*release*
> CentOS release 6.2 (Final)
> cat: /etc/lsb-release.d: Is a directory
> CentOS release 6.2 (Final)
> CentOS release 6.2 (Final)
> cpe:/o:centos:linux:6:GA
>
>
>
> Any thoughts?
> -Jason

Try running mysql_install_db and then starting the server.

-larry