Upgrade from 4.0.x to 4.2.x - Fresh install with DB upgrade ok?

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 :frowning: ) 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?

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 :frowning: )

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
Upgrading to RT 4 — Best Practical Solutions helpful.

  • Alex