What database are you using. I went the exact path you are doing a few months ago from 3.8.7 to 4.0.5 and someone here posted a link with very straightforward instructions. I am using Postgres and just did a pg_dump of the db, created a new one with a different name and loaded my dump file into it. Then on the new server, got everything installed per instructions but instead of initializing database ran: rt-upgrade-database (I think) And it prompts you to step through each version of the db one at a time.
If I can find the link, I'll send it to you. I did run into an issue on one of my installations where custom fields are handled a little differently (only if the custom fields are linked to one another) but I put together some scripts with a little help from the list and fixed it. Since I was moving to another server and was able to test a few dry runs, the whole upgrade took about 30 min to an hour to complete. Sent from my mobile device. On Aug 1, 2012, at 2:27 AM, Jenni Wilson <jenni.wil...@strategicdata.com.au> wrote: > Hello, > > We are in the process of upgrading RT from version 3.8.7. We are starting > with a fresh install on a new server. We have RT set up and the plan is to > delete the current database on the new server and reimport the data from our > old server and then run the update scripts, we predict this will take 2-3 > hours. > > Collegues have vague memories that when upgrading from version 2 to 3 they > were able to upgrade in a similar manner, but in order to minimise the > downtime, they were able to use tools that allowed them to do the bulk of the > data upgrade during office hours, then take down the old version and do an > incremental migration to move any data that has been added since the bulk > data extraction. > > The insert action on the rt-setup-database script mentions a supplementary > datafile. Could this action be used to perform the incremental upgrade I > describe above? > If so what is the format of the datafile and is there any tools we can use to > create it? We are using a postgres database. > > Thanks, > Jenni Wilson > Strategic Data > Tel: 03 9340 9000 > Fax: 03 9340 9090 > > >
