[TriLUG] Red Hat 9 upgrade issues

[Frye, Matthew]

	Thanks for the heads up on rpms.  As it stands, I am upgrading the
OS with as few "extra" apps as possible, but this called attention to some
hardware management rpms and my TSM client software.  Components of the web
applications on this server need to be compiled from source anyway because
there are libraries and extension that I need that aren't available in the
rpm versions or their respective addons/patches, e.g. OCI support for
connecting to Oracle from PHP.  
	The test box has ext3, but the prod box has ext2, thus the need for
deeper understanding of this process.  I will read the release notes.  

Matt

> ----------
> From: 	Joseph Tate[SMTP:jtate at dragonstrider.com]
> Reply To: 	Triangle Linux Users Group discussion list
> Sent: 	Thursday, August 28, 2003 3:30 PM
> To: 	Triangle Linux Users Group discussion list
> Subject: 	Re: [TriLUG] Red Hat 9 upgrade issues
> 
> Frye, Matthew wrote:
> 
> >I'm getting ready to do a Red Hat 9 upgrade from 7.2 on a test box and
> it's
> >production counterpart.  Can anyone offer suggestions, gotchas to look
> out
> >for, etc.  The reason I ask is because I have noticed that the Red Hat
> >Installation Guide is a frail wisp of it's former self.  When I bought
> the
> >5.2 distro in 1998, the book was hefty and chock full of good info.  The
> RH9
> >Installation Guide is a scant 130 pages, mostly of pictures of install
> >GUI's.  I don't need a book for that. Particular issues include ext2 to
> ext3
> >migration, libraries, network considerations, etc.
> >
> >
> >  
> >
> Upgrade to 8.0 first.  There are packages that were replaced in 8.0 (and 
> marked as obsoleted by blah), but those packages can't be updated 
> straight to 9 (because those obsoleted lines were removed from the 
> RPMs).  I can't remember which packages off hand, but check the yum list 
> archives for details.  A 7.2 to 8.0 update can be done using yum as can 
> a 8.0 to 9 update.  Since you've got a test box though, backup a copy of 
> the output from rpm -qa | sort and go for it.  Then do another rpm -qa 
> when you're finished with the upgrade to see what's still hanging 
> around.  Those packages should be removed before the upgrade takes place 
> to make it smooth sailing.  A glance at the RELEASE notes for 8.0 and 9 
> should give you a clue of what problem packages to look for.
> 
> Ext2 to ext3 can be done as easily as running tune2fs -j on the 
> unmounted drive.  Network stuff is the same.  IPtables replaces 
> ipchains, but lokkit is still there, and so are ipchains, so if you 
> don't want to migrate right away you can.
> 
> Joseph
> 
> P.S.  If you're running mailman on the 7.2 box, you'll need to do a lot 
> more work to get that to work. 
> And one more thing, if you're running postgres, make sure you have a 
> good pg_dump file of all your data before the upgrade.  Point releases 
> of postgres are not binary data file compatible with previous versions.  
> I.e. data files from 7.2.x cannot be read by 7.3.x, hence the need for a 
> good pg_dump of the data.
> 
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