CentOS 5.5 is Out ! Upgrade now from CentOS 5.4 to 5.5

CentOS 5.5 is relased, this release as announced is based on the upstream release 5.5 and includes packages from all variants including Server and Client. All upstream repositories have been combined into one, to make it easier for end users to work with. For more information about this release you can read the release note.

If you diden`t hear before about Centos :






About CentOS :

“CentOS as a group is a community of open source contributors and users. Typical CentOS users are organisations and individuals that do not need strong commercial support in order to achieve successful operation. CentOS is 100% compatible rebuild of the Red Hat Enterprise Linux, in full compliance with Red Hat’s redistribution requirements. CentOS is for people who need an enterprise class operating system stability without the cost of certification and  support.”                                                                                 


Download CentOS 5.5

Upgrade to CentOS 5.5 :

If you have Centos 5.4 already installed, before to do anything first back up anything you care about. Then you can upgrade by using the commands bellow :

yum clean all
yum update glibc*
yum update yum* rpm* python*
yum clean all
yum update

Check  your  new version with :

lsb_release  -a


LSB Version:    :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID:    CentOS
Description:    CentOS release 5.5 (Final)
Release:    5.5
Codename:    Final

Important : If you have ISPConfig installed on Centos using The Perfect Server installations, you’ll probably have Karanbir Singh’s famous Centos Testing Repository as active – kbs-CentOS-Testing

The repository kbs-CentOS-Testing lzo/lzop package is attempting to replace Dag Wieers’ also famous RPMFORGE Repository package for lzo/lzop thus causing the dependencies.

Thus, disabling kbs-CentOS-Testing when you update via yum would be the answer..

yum update --exclude="postfix" --disablerepo=kbs-CentOS-Testing

Is done !

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