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MySQL 3.23, 4.0, 4.1 Reference Manual :: 2 Installing and Upgrading MySQL :: 2.1 General Installation Issues :: 2.1.4 Verifying Package Integrity Using MD5 Checksums or GnuPG
2.1.4.1 Verifying the MD5 Checksum »
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2.1.4. Verifying Package Integrity Using MD5 Checksums or GnuPG

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2.1.4.1. Verifying the MD5 Checksum
2.1.4.2. Signature Checking Using GnuPG
2.1.4.3. Signature Checking Using RPM

After you have downloaded the MySQL package that suits your needs and before you attempt to install it, you should make sure that it is intact and has not been tampered with. There are three means of integrity checking:

  • MD5 checksums

  • Cryptographic signatures using GnuPG, the GNU Privacy Guard

  • For RPM packages, the built-in RPM integrity verification mechanism

The following sections describe how to use these methods.

If you notice that the MD5 checksum or GPG signatures do not match, first try to download the respective package one more time, perhaps from another mirror site. If you repeatedly cannot successfully verify the integrity of the package, please notify us about such incidents, including the full package name and the download site you have been using, at or . Do not report downloading problems using the bug-reporting system.