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jfstenuit/RHEL_into_CentOS.md

Last active February 9, 2017 13:29
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Transform a RHEL into CentOS
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RHEL_into_CentOS.md

Download base packages

  wget http://mirror.centos.org/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6
  wget http://mirror.centos.org/centos/6/os/x86_64/Packages/centos-release-6-8.el6.centos.12.3.x86_64.rpm
  wget http://mirror.centos.org/centos/6/os/x86_64/Packages/yum-3.2.29-73.el6.centos.noarch.rpm
  wget http://mirror.centos.org/centos/6/os/x86_64/Packages/yum-utils-1.1.30-37.el6.noarch.rpm

Check CentOS mirror for newer files if needed

Erase RHEL specific packages

  rpm -e –nodeps redhat-release-server
  rpm -e rhn-seup rhn-client-tools rhnsd rhn-check yum-rhn-plugin

Install all downloaded packages :

  rpm -Uhv –-force *.rpm
  • "U" is for upgrade
  • "hv" verbose and hash marks - nice display but you can ommit if you want
  • "force" is to force installation of packages even if the installed one is more recent

Now start upgrading

  yum upgrade

Reboot

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