[rt-users] Upgrade from 4.0.x to 4.2.x - Fresh install with DB upgrade ok?

[Alex Vandiver]

On Mon, 2013-12-02 at 17:49 +0000, Cena, Stephen (ext. 300) wrote:
> I'm getting ready to do an upgrade from 4.0.18 to 4.2.1 here on two
> servers. When I try the upgrade in a test environment, I get a bunch
> of errors that fly by (I don't have them, sorry :( )

Get them and look at them.  It may well solve you large amounts of time
and data loss later.

>  but the site appears to be working. My question is, is it safe to do
> a "fresh install" of 4.2.1 and then use the 'make upgrade-database-
> script against the current database, use my current RT_SiteConfig.pm
> file & spin up the site?

That's the recommended set of steps to upgrade, yes.  Though it was
written for 3.8 -> 4.0, you may find
http://blog.bestpractical.com/2011/07/upgrading-to-rt-4.html helpful.
 - Alex