[CentOS] update from 4.8 to 5.4?

[Craig White]

On Fri, 2010-06-04 at 16:49 -0400, Whit Blauvelt wrote:
> On Fri, Jun 04, 2010 at 04:33:05PM -0400, m.roth at 5-cent.us wrote:
> 
> > It is officially (according to RH, AFAIK) NOT recommended to go up a full
> > release by update. Subreleases are fine, but you want a clean install for
> > a new release (that is, 4.x to 5.x).
> 
> Ah, so that's still the RH way! That's why I left RH behind years ago, in
> preference for Gentoo and then Ubuntu - both of which are largely very good
> (although YMMV) at full release updates. Not that I'm finding any lack of
> features to admire in the current CentOS (and RH) release. Just that it's
> disappointing to know that, come version 6, if any of the new features are
> srong reason to upgrade, my collection of CentOS and RH boxen'll have no
> efficient path to be upgraded to it.
> 
> I was kind of hoping RH would have solved this old problem of theirs since
> I've been away. Guess it's a feature, from their POV, not a bug. It's not
> that their competitors don't have, occassionally, something small broken in
> a full version upgrade. It's just that fixing whatever it is is far less
> labor than what I put into customizing a clean install. I suppose for those
> who just run a stock distro with one or two customized daemons it's not such
> a big deal. That can't be the whole RH market though.
----
at least through RHEL/CentOS 5, there has always been the ability to
pass 'upgradeany' option at boot but it is an unsupported option for
RHEL and you get to keep any pieces that break during the upgrade. The
times I have used it, it has generally worked well. I don't know if such
an option will be available for RHEL/CentOS 6.

Craig


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