CentOS 6.4 Release Notes

Last updated: May 21, 2013

1. Translations

Translations of these release notes are available for the following languages :

2. Introduction

Welcome to the CentOS 6.4 release. CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by our Upstream OS Provider (UOP)1.

CentOS conforms fully with the upstream vendor's redistribution policy and aims to be 100% binary compatible. CentOS mainly changes packages to remove upstream vendor branding and artwork.

We have decided not to follow the UOP's usage of Installation Codes. All 'channels' are available to the System Administrator at time of installation.

Similar to the practice of the upstream vendor, there is no supported path to 'upgrade' an installation of a prior major CentOS release (presently CentOS 5) to a new major release. This is not a CentOS imposed limitation, but rather reflects the upstream's approach on this matter. People who feel adventuresome and want to experiment are reminded to take and test backups first. As a note to people who attempt the upgrade in spite of this warning, such as by the unsupported upgradeany option from the media install command line, please note that you will need to manually retrieve the current centos-release package, manually do a rpm -e --nodeps removal of the prior centos-release package, and then manually install the CentOS 6 centos-release package, before yum can have any chance of working properly.

The continuous release (CR) repository makes generally available packages that will appear in the next point release of CentOS, on a testing and hotfix basis until formally released.

Please read through the other sections before trying an install or reporting an issue.

3. Install Media and sha1sum

sha1sum i386:

4bd3a1de6f6dfcd7a2199487abf5a9304d696cae  CentOS-6.4-i386-bin-DVD1.iso
fb096cd6ac88959a287256c76c7292ae2ef53f32  CentOS-6.4-i386-bin-DVD2.iso
ddb63a0af2c1d63b8e9b7342c7f52a86b1842689  CentOS-6.4-i386-minimal.iso
6ffc9f3a5f4332b55cc35f1eb3ebb39f5aa8edb6  CentOS-6.4-i386-netinstall.iso

sha1sum x86_64:

8672dc087f1b0eda60b9efaa41b82f034f185e24  CentOS-6.4-x86_64-bin-DVD1.iso
db16ec15897dcb7a01e7434486075f43ca982c4b  CentOS-6.4-x86_64-bin-DVD2.iso
6232efa014d9c6798396b63152c4c9a08b279f5e  CentOS-6.4-x86_64-minimal.iso
77817ed6e879da155b6f3dc98e0698e8993e28f8  CentOS-6.4-x86_64-netinstall.iso

4. Major changes

5. Known Issues

6. Fixed Issues

7. Packages and Applications

7.1. Packages modified by CentOS

7.2. Packages removed from CentOS that are included upstream

7.3. Packages added by CentOS that are not included upstream

7.4. Packages released as 6.3 updates with older packages on the 6.4 install media

8. Sources

All CentOS sources are now hosted at vault.centos.org:

9. How to help and get help

As a CentOS user there are various ways you can help out with the CentOS community. Take a look at our Contribute page for further information on how to get involved.

9.1. Special Interest Groups

CentOS consists of different Special Interest Groups (SIGs) that bring together people with similar interests. The following SIGs already exist:

And we encourage people to join any of these SIGs or start up a new SIG, e.g.

9.2. Mailinglists and Fora

Another way you can help others in the community is by actively helping and resolving problems that users come up against in the mailing lists and the fora.

9.3. Wiki and Website

Even as an inexperienced CentOS user we can use your help. Because we like to know what problems you encountered, if you had problems finding specific information, how you would improve documentation so it becomes more accessible. This kind of feedback is as valuable to others as it would have been to you so your involvement is required to make CentOS better.

So if you want to help out and improve our documentation and Wiki, register on the Wiki or subscribe to the centos-docs mailing list.

10. Further Reading

The following websites contain large amounts of information to help people with their CentOS systems :

11. Thanks

We thank everyone involved for helping us produce this product and would like to specifically acknowledge the extra effort made by the QA Team.

Copyright (C) 2013 The CentOS Project


Manuals/ReleaseNotes/CentOS6.4 (last edited 2014-04-25 15:02:05 by AnssiJohansson)