I just solved a problem which I also saw in an archived post, and which nobody seems to have posted a fix:

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DBI connect('sefovan:localhost','koha',...) failed: Client does not support authentication protocolrequested by server; consider upgrading MySQL client at C:\usr\koha-2.2.0RC2\modules/C4/Context.pm line 409.

This problem arises from the mysql authentication change documented at: http://dev.mysql.com/doc/mysql/en/old-client.html You can overcome the problem by editing line 1808 of Install.pm from: print system("$mysqldir/bin/mysql -u$mysqluser -e \"insert into user (Host,User,Password) values ('$hostname','$user',password('$pass'))\" mysql\;"); to: print system("$mysqldir/bin/mysql -u$mysqluser -e \"insert into user (Host,User,Password) values ('$hostname','$user',OLD_PASSWORD('$pass'))\" mysql\;"); Andrew Koebrick Web Coordinator / Librarian Dept. of Administration State of Minnesota 658 Cedar St. St. Paul, MN 55155 651-296-4156 http://server.admin.state.mn.us