[ale] Red Hat upgrades?

[scott mcbrien]

Really?  You run your production boxes on Fedora?  Don't get me wrong,
I like Fedora, but I don't believe it's place is in the production
operations DC.  As a hobby box or desktop, I think that's it's niche.

-Scott

On Tue, Jul 5, 2011 at 11:09 AM, Michael H. Warfield <mhw at wittsend.com> wrote:
> On Tue, 2011-07-05 at 09:17 -0400, James Sumners wrote:
>> On Fri, Jul 1, 2011 at 3:34 PM, James Sumners <james.sumners at gmail.com> wrote:
>> > On Fri, Jul 1, 2011 at 3:29 PM, Geoffrey Myers
>> > <lists at serioustechnology.com> wrote:
>> >> I had RHEL 5.5 running and contacted RH to find out how to upgrade.  I
>> >> was told you couldn't do an upgrade from 5 to 6, it had to be a new
>> >> install.  Could be I was told wrong, but that is what I was told and
>> >> didn't pursue the matter further.
>> >
>> > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/sn-upgrading-system-x86.html
>>
>>
>> I contacted them myself when the DVD kept refusing to find the
>> installed OS. Here is the response:
>>
>> "An upgrade from RHEL 4.9 to RHEL 5.6 is not happening due to the fact
>> that there is a change in Major number between the 2 releases.
>>
>> Inserting a DVD of RHEL 5.6 would provide you an option to Upgrade if
>> your Operating system were to be : RHEL 5.5.
>> This is possible because there is just a minor change in these versions.
>>
>> RHEL 5.5 ==> RHEL 5.6 : Using RHEL 5.6 DVD : Up-gradable
>> RHEL 4.9 ==> RHEL 5.6 : Using RHEL 5.6 DVD : Not Up-gradable
>
>> Also,
>
>> RHEL 4.9 ==> RHEL 5.0 : Using RHEL 5.0 DVD : Not Up-gradable.
>
>> Every Major Release for example 4.x, 5.x, 6.x can be upgraded within
>> its range of minor releases i.e: 0-9.
>> However, to upgrade from a 4.x ==> 5.x, a fresh installation is needed
>> due to a platform change."
>
> That's been my understanding all along and is the "A number 1" reason
> why I will stick to Fedora.  It's stable and you can do these kinds of
> upgrades on the fly while the server is running.
>
> I don't even use "preupgrade" under Fedora, although I continue to test
> preupgrade but was recently burned by preupgrade when it left one of my
> machines totally unbootable after preupgrade attempted to upgrade it
> from F14 to F15 and could not deal with an irreconcilable dependency
> issue.
>
> For me, the "yum upgrade" has always worked the best.  They've improved
> that to the point where it's almost trivial.  Now you just update the
> system and check for config changes, import the pgp key, flush yum's
> cache, then do a distsync to the new release version (yum clean all ;
> yum --releasever=15 distsync) and a groupupdate on base.  I don't skip
> major vers though.  To go from F12 to F15, you have to do F13 and F14 as
> stops along the way.
>
> http://fedoraproject.org/wiki/YumUpgradeFaq
>
> Regards,
> Mike
> --
> Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
>   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
>   NIC whois: MHW9          | An optimist believes we live in the best of all
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>
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