FAQ
What is the best way to install CentOS 6?
Is there an upgrade facility from CentOS-5.6?
If so, how does this compare with a clean installation?

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  • Brunner, Brian T. at Jul 6, 2011 at 3:34 pm

    centos-bounces at centos.org wrote:

    What is the best way to install CentOS 6?
    DVDs you download and burn onto drives you've backed up onto (yet) other
    drives.
    Is there an upgrade facility from CentOS-5.6?
    Officially no, technically possible[1], considered unwise by many if not
    most system babysitters & admins.
    If so, how does this compare with a clean installation?
    See above: considered unwise even if possible.


    [1] Say something is IMpossible, and you'll soon be run over by somebody
    who wasn't listening, and just did it.


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  • William Hooper at Jul 6, 2011 at 3:37 pm

    On Wed, Jul 6, 2011 at 3:27 PM, Timothy Murphy wrote:
    What is the best way to install CentOS 6?
    Is there an upgrade facility from CentOS-5.6?
    If so, how does this compare with a clean installation?
    Historically the upstream vendor has not supported major version
    upgrades. It appears that version 6 is not an exception[1].

    [1] - http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/ch-upgrade-x86.html

    --
    William Hooper
  • Robert Heller at Jul 6, 2011 at 3:55 pm

    At Wed, 06 Jul 2011 21:27:08 +0200 CentOS mailing list wrote:

    What is the best way to install CentOS 6?
    Is there an upgrade facility from CentOS-5.6?
    If so, how does this compare with a clean installation?
    The rule of thumb is to always to a fresh clean installation when
    upgrading from a major version (eg 5.x to 6.x). Make a backup of your
    configuration files. Presumably, your /home and/or /var/www directories
    are on their own file systems -- this makes things easier, althogh for a
    production server environment, you really want to do a fresh install on
    a fresh 'machine' (or virtual host), and then migrate services and
    content, testing as you go.

    >

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