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Related Documentation Download this Manual Excerpts from this Manual Verifying the MD5 Checksum

After you have downloaded a MySQL package, you should make sure that its MD5 checksum matches the one provided on the MySQL download pages. Each package has an individual checksum that you can verify against the package that you downloaded. The correct MD5 checksum is listed on the downloads page for each MySQL product, and you will compare it against the MD5 checksum of the file (product) that you download.

Each operating system and setup offers its own version of tools for checking the MD5 checksum. Typically the command is named md5sum, or it may be named md5, and some operating systems do not ship it at all. On Linux, it is part of the GNU Text Utilities package, which is available for a wide range of platforms. You can also download the source code from If you have OpenSSL installed, you can use the command openssl md5 package_name instead. A Windows implementation of the md5 command line utility is available from winMd5Sum is a graphical MD5 checking tool that can be obtained from Our Microsoft Windows examples will assume the name md5.exe.

Linux and Microsoft Windows examples:

shell> md5sum mysql-standard-5.5.48-linux-i686.tar.gz
aaab65abbec64d5e907dcd41b8699945  mysql-standard-5.5.48-linux-i686.tar.gz
shell> md5.exe mysql-installer-community-5.5.48.msi
aaab65abbec64d5e907dcd41b8699945  mysql-installer-community-5.5.48.msi

You should verify that the resulting checksum (the string of hexadecimal digits) matches the one displayed on the download page immediately below the respective package.


Make sure to verify the checksum of the archive file (for example, the .zip, .tar.gz, or .msi file) and not of the files that are contained inside of the archive. In other words, verify the file before extracting its contents.

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User Comments
  Posted by Moby Dick on December 28, 2007
In OS X with tcsh shell md5 works like this:

shell> openssl md5 package_name

Of course, this is assuming that you already are in the directory where the package has been downloaded. Otherwise you should include the corresponding path to the package_name.

  Posted by MySQL User on August 24, 2008
Microsoft's File Checksum Integrity Verifier (FCIV) is another free checksum utility for Windows operating systems. The fciv.exe download file is named 'Windows-KB841290-x86-ENU.exe'.
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