How to downgrade to MySQL 4.0 from 4.1 (Linux/rpms)

If you need mysql 4.0 installed instead of 4.1, you can remove 4.1 and install 4.0 by following this guide. Â This guide will wipe out any databases, so you'll need to make backups if you've already setup your databases

cd /usr/local/directadmin/scripts/packages
rm -f MySQL*
wget http://files.directadmin.com/services/all/mysql/MySQL-client-4.0.27-0.i386.rpm
wget http://files.directadmin.com/services/all/mysql/MySQL-devel-4.0.27-0.i386.rpm
wget http://files.directadmin.com/services/all/mysql/MySQL-server-4.0.27-0.i386.rpm
wget http://files.directadmin.com/services/all/mysql/MySQL-shared-4.0.27-0.i386.rpm
cd ..
./mysql.shÂ rootpass da_adminÂ daadmnpass

Where rootpass and daadmnpass can be anything you want. Â This is where they are set, so you can use any passwords you want for them. Â The installer will ask Â you to delete the data. Â You need to select 'y' (yes) to delete the data. Â If you've done this before you may need to manually delete /var/lib/mysql first.

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