CentOS 6.3 Release Notes

Last updated: September 30, 2012

1. Translations

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

2. Introduction

Welcome to the CentOS 6.3 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:
541f98e36a7034ab3b470ddf5e2232df3829983e  CentOS-6.3-i386-bin-DVD1.iso
44d9e8652af683b844138ea2ea03e6772c18a613  CentOS-6.3-i386-bin-DVD2.iso
c596411085110dbb67fb030e667ae054afb413c8  CentOS-6.3-i386-minimal.iso
51dcbf68ddc0fc2907ecbba055bf041dc8ae7ca9  CentOS-6.3-i386-netinstall.iso
7cb1ea7eb35e4ee7112d4cd6b56528562cabc65a  CentOS-6.3-i386-LiveCD.iso
f34c3f9c6880bffe6344aa6a0381275689f0bf02  CentOS-6.3-i386-LiveDVD.iso

sha1sum x86_64:
eaa52f3d1ccf2df3b03e064fb0fa6168be28a4d4  CentOS-6.3-x86_64-bin-DVD1.iso
29eee5946372ed29de509b9604d895b99d36a33f  CentOS-6.3-x86_64-bin-DVD2.iso
09801301433c8dc1a93d732790f9a4d8ca7895e6  CentOS-6.3-x86_64-minimal.iso
c85069ee289d6eb279ba1c1ab0c259513302b8fd  CentOS-6.3-x86_64-netinstall.iso
e04fbc13598800e5b71a3d2eb62af66100acfcfc  CentOS-6.3-x86_64-LiveCD.iso
e810015efaa0e3adf0c0a3c100f79eb8fce83e97  CentOS-6.3-x86_64-LiveDVD.iso
3c73f54debc87b6ee7e77ef1795f9ad6987532c7  CentOS-6.3-x86_64-minimal-EFI.iso
94b0d16f49dd39ec660321202cb4b8bbc3fe1e64  CentOS-6.3-x86_64-netinstall-EFI.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 6.2 updates with older packages on the 6.3 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) 2012 The CentOS Project


Manuals/ReleaseNotes/CentOS6.3 (last edited 2012-09-30 11:01:55 by ChristophGaluschka)