We have been happily using OTRS2 running on CentOS. We want to upgrade to OTRS3. We tried following "OTRS 3.0 - Admin Manual, Chapter 3. Installation/Upgrade of the OTRS Framework", but when we try to run rpm we get dependency issues. Specifically, lacking perl(Date::Format) and perl(XML::Parser). I don't know how to load these dependencies.
So I set up an Ubuntu host, and the OTRS3 install went well. We can log into it with an empty database. Then I followed FAQ# 4200258, "Moving OTRS to another machine/system". I generated the otrs.sql file from the OTRS2 CentOS machine, loaded it into the OTRS3 Ubuntu machine, and copied it into that mysql otrs database. Then I went back to the Upgrade document and successfully applied the database changes per step 8 in that document. But in attempting to perform step 9, running the DBUpdate-to-3.0.pl script, I get "access denied" no matter how I log in.
A word of wisdom as to how to proceed would be greatly appreciated.
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This is what finally worked:
1. Install OTRS2 on Ubuntu
2. Migrate the OTRS2 database from CentOS to Ubuntu
3. Upgrade Ubuntu to OTRS3.
Upgrade OTRS and change OS[solved]
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