In MySQL 5.1.7, mysql_fix_privilege_tables was superseded by mysql_upgrade, which should be used instead. See Section 4.4.8, “mysql_upgrade — Check and Upgrade MySQL Tables”.
Some releases of MySQL introduce changes to the structure of the
system tables in the
mysql database to add
new privileges or support new features. When you update to a new
version of MySQL, update your system tables as well to make sure
that their structure is up to date. Otherwise, there might be
capabilities that you cannot take advantage of.
mysql_fix_privilege_tables is an older script
that previously was used to upgrade the system tables in the
mysql database after a MySQL upgrade.
Before running mysql_fix_privilege_tables,
make a backup of your
On Unix or Unix-like systems, update the system tables by running the mysql_fix_privilege_tables script:
You must run this script while the server is running. It
attempts to connect to the server running on the local host as
root. If your
requires a password, indicate the password on the command line
The mysql_fix_privilege_tables script
performs any actions necessary to convert your system tables to
the current format. You might see some
name warnings as it runs; you can ignore them.
After running the script, stop the server and restart it so that any changes made to the system tables take effect.
On Windows systems, MySQL distributions include a
mysql_fix_privilege_tables.sql SQL script
that you can run using the mysql client. For
example, if your MySQL installation is located at
C:\Program Files\MySQL\MySQL Server
5.1, the commands look like this:
cd "C:\Program Files\MySQL\MySQL Server 5.1"C:\>
bin\mysql -u root -p mysqlmysql>
Prior to version 5.1.17, the
mysql_fix_privilege_tables.sql script is
found in the
The mysql command will prompt you for the
root password; enter it when prompted.
If your installation is located in some other directory, adjust the path names appropriately.
As with the Unix procedure, you might see some
Duplicate column name warnings as
mysql processes the statements in the
mysql_fix_privilege_tables.sql script; you
can ignore them.
After running the script, stop the server and restart it.