mysql_install_db initializes the MySQL data directory and creates the system tables that it contains, if they do not exist.
To invoke mysql_install_db, use the following syntax:
shell> mysql_install_db [options]
Because the MySQL server, mysqld, needs to
access the data directory when it runs later, you should either
run mysql_install_db from the same account
that will be used for running mysqld or run
it as root and use the
--user option to
indicate the user name that mysqld will run
as. It might be necessary to specify other options such as
--basedir or
--datadir if
mysql_install_db does not use the correct
locations for the installation directory or data directory. For
example:
shell>scripts/mysql_install_db --user=mysql \--basedir=/opt/mysql/mysql \--datadir=/opt/mysql/mysql/data
mysql_install_db needs to invoke
mysqld with the
--bootstrap and
--skip-grant-tables options. If
MySQL was configured with the
DISABLE_GRANT_OPTIONS compiler
flag, --bootstrap and
--skip-grant-tables will be
disabled (see Section 2.11.4, “MySQL Source-Configuration Options”).
To handle this, set the MYSQLD_BOOTSTRAP
environment variable to the full path name of a server that has
all options enabled. mysql_install_db will
use that server.
If you have set a custom TMPDIR variable
when performing the installation, and the specified directory
is not accessible, the execution of
mysql_install_db may fail. You should unset
TMPDIR, or set TMPDIR to
point to the system temporary directory (usually
/tmp).
mysql_install_db supports the following
options, which can be specified on the command line or in the
[mysql_install_db] and (if they are common to
mysqld) [mysqld] option
file groups.
The path to the MySQL installation directory.
Cause mysql_install_db to run even if DNS does not work. In that case, grant table entries that normally use host names will use IP addresses.
The path to the MySQL data directory.
For internal use. This option is used by RPM files during the MySQL installation process.
Use IP addresses rather than host names when creating grant table entries. This option can be useful if your DNS does not work.
For internal use. The directory under which mysql_install_db looks for support files such as the error message file and the file for populating the help tables.
The login user name to use for running mysqld. Files and directories created by mysqld will be owned by this user. You must be
rootto use this option. By default, mysqld runs using your current login name and files and directories that it creates will be owned by you.Verbose mode. Print more information about what the program does.
For internal use. This option is used for creating Windows distributions.