MySQL 5.1 Reference Manual  /  Installing and Upgrading MySQL

Chapter 2 Installing and Upgrading MySQL

Table of Contents     [+/-]

2.1 General Installation Guidance     [+/-]
2.2 Installing MySQL on Unix/Linux Using Generic Binaries
2.3 Installing MySQL on Microsoft Windows     [+/-]
2.4 Installing MySQL on OS X     [+/-]
2.5 Installing MySQL on Linux     [+/-]
2.6 Installing MySQL on Solaris and OpenSolaris     [+/-]
2.7 Installing MySQL on IBM AIX     [+/-]
2.8 Installing MySQL on HP-UX     [+/-]
2.9 Installing MySQL on FreeBSD
2.10 Installing MySQL on i5/OS
2.11 Installing MySQL from Source     [+/-]
2.12 Postinstallation Setup and Testing     [+/-]
2.13 Upgrading or Downgrading MySQL     [+/-]
2.14 Environment Variables
2.15 Perl Installation Notes     [+/-]

End of Product Lifecycle. Active development for MySQL Database Server version 5.1 has ended. Oracle offers various support offerings which may be of interest. For details and more information, see the MySQL section of the Lifetime Support Policy for Oracle Technology Products ( Please consider upgrading to a recent version.

This chapter describes how to obtain and install MySQL. A summary of the procedure follows and later sections provide the details. If you plan to upgrade an existing version of MySQL to a newer version rather than install MySQL for the first time, see Section 2.13.1, “Upgrading MySQL”, for information about upgrade procedures and about issues that you should consider before upgrading.

If you are interested in migrating to MySQL from another database system, see Section A.8, “MySQL 5.1 FAQ: Migration”, which contains answers to some common questions concerning migration issues.

If you are migrating from MySQL Enterprise Edition to MySQL Community Server, see Section, “Downgrading from MySQL Enterprise Edition to MySQL Community Server”.

Installation of MySQL generally follows the steps outlined here:

  1. Determine whether MySQL runs and is supported on your platform.

    Please note that not all platforms are equally suitable for running MySQL, and that not all platforms on which MySQL is known to run are officially supported by Oracle Corporation.

  2. Choose which distribution to install.

    Several versions of MySQL are available, and most are available in several distribution formats. You can choose from pre-packaged distributions containing binary (precompiled) programs or source code. When in doubt, use a binary distribution. Oracle also provides access to the MySQL source code for those who want to see recent developments and test new code. To determine which version and type of distribution you should use, see Section 2.1.1, “Choosing Which MySQL Distribution to Install”.

  3. Download the distribution that you want to install.

    For instructions, see Section 2.1.2, “How to Get MySQL”. To verify the integrity of the distribution, use the instructions in Section 2.1.3, “Verifying Package Integrity Using MD5 Checksums or GnuPG”.

  4. Install the distribution.

    To install MySQL from a binary distribution, use the instructions in Section 2.2, “Installing MySQL on Unix/Linux Using Generic Binaries”.

    To install MySQL from a source distribution or from the current development source tree, use the instructions in Section 2.11, “Installing MySQL from Source”.

  5. Perform any necessary postinstallation setup.

    After installing MySQL, see Section 2.12, “Postinstallation Setup and Testing” for information about making sure the MySQL server is working properly. Also refer to the information provided in Section 2.12.4, “Securing the Initial MySQL Accounts”. This section describes how to secure the initial MySQL user accounts, which have no passwords until you assign passwords. The section applies whether you install MySQL using a binary or source distribution.

  6. If you want to run the MySQL benchmark scripts, Perl support for MySQL must be available. See Section 2.15, “Perl Installation Notes”.

Instructions for installing MySQL on different platforms and environments is available on a platform by platform basis:

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