CentOS 6.0 Release Notes

Last updated: Nov 11, 2011

1. Translations

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

2. Introduction

Welcome to the CentOS 6.0 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.)

CentOS 6.0 represents many changes from previous releases.

CentOS 6.0 has been completely rebuilt using a newer build system and library checks to confirm upstream binary compatibility.

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 or CentOS 4) 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.

Please read through the other sections before trying an install or reporting an issue. Release Notes for the CentOS-6.0 minimal.iso are available here.

3. Install Media and sha1sum

--------------------------------------------
i386 media and their sha1sums are:
fcf49e875cd4494f2af68cf257ab9e93523c9427  CentOS-6.0-i386-bin-DVD.iso
862815623d2e7990207dd78a281837c7eb719e83  CentOS-6.0-i386-netinstall.iso
7264fcdae164501384c68a84f4e5ae26111413c4  CentOS-6.0-i386-minimal.iso
--------------------------------------------
x86_64 media and their sha1sums are:
9de87b0c696ebd72b952edb4cc06c24cbdc37d81  CentOS-6.0-x86_64-bin-DVD1.iso
5e3834621f11fbcca78cf7d70625c647045f45f5  CentOS-6.0-x86_64-bin-DVD2.iso
23f9e606cbcbd52d2e5df3716a85cdde336f7bfe  CentOS-6.0-x86_64-netinstall.iso
fea3f0c576e256c41ad4587a6a7c0aedb59dd593  CentOS-6.0-x86_64-minimal.iso
--------------------------------------------

4. Known Issues

5. Packages and Applications

5.1. Packages modified by CentOS

5.2. Packages removed from CentOS that are included upstream

5.3. Packages added by CentOS that are not included upstream

6. 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.

6.1. 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.

6.2. 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.

6.3. 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.

7. Further Reading

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

8. Thanks

We thank everyone involved for helping us produce this product.

Copyright (C) 2011 The CentOS Project


Manuals/ReleaseNotes/CentOS6.0 (last edited 2011-12-06 22:03:06 by DavidHrbac)