Greetings, As Robin Sheat pointed out, a step or two was missing. This is why we strongly recommend reading the INSTALL.{OS} (i.e. INSTALL.debian or INSTALL.ubuntu, etc.) files. --- SNIPPET FROM INSTALL.ubuntu --- UPGRADE ======= If you are running in another language other than english, please switch to english before doing the upgrade, the templating system has changed and the templates will need to be regenerated. Once you have upgraded, please regenerate your templates in your chosen languages. If you are upgrading from a previous installation of Koha 3.x, you can use the following: ./koha_perl_deps.pl -u -m # to identify new Perl dependencies Install any missing modules IMPORTANT: Koha 3.6.x uses Template::Toolkit, this must be installed before the webinstaller can run sudo apt-get install libtemplate-perl perl Makefile.PL --prev-install-log /path/to/koha-install-log make make test sudo make upgrade Koha 3.4.x or later no longer stores items in biblio records so if you are upgrading from an older version as part of the upgrade you will need to do the following two steps, they can take a long time (several hours) to complete for large databases misc/maintenance/remove_items_from_biblioitems.pl --run misc/migration_tools/rebuild_zebra.pl -b -r --- END SNIPPET --- I compared this section against the INSTALL.debian, and only find the debian had a typo in it. If you are going to be doing a fresh install of Koha, consider packages in the first place: http://wiki.koha-community.org/wiki/Koha_3.8_on_Debian_Squeeze I can affirm that the Koha_3.8_on_Debian_Squeeze instructions work for Ubuntu 12.04 LTS. GPML, Mark Tompsett