How can downgrade mysql to 4.0

[azrael]

Last night , cpanel upgrade mysql 4.0 to 4.1.

I want to return to 4.0.

I modified cpanel.conf.

when I ran mysqpup --force, it doen't support downgrade.

how can downgrade mysql?

[Vizzi]

Doing so will most likely destroy all your MySQL Databases.

[Spiral]

The database format is different between 4.1 and 4.0 so the only
way you could backwards downgrade would be to export all databases
to text SQL dump files and reload into manually created databases
after manually downgrading ---- in short, pain in the #!$!#$

I personally do not see any point why you would want to go to 4.0!

In some rare cases, I can see the need to stay back on v4.1 but
there is absolutely no practical purpose whatsoever staying on 4.0!

Both 4.0 and 4.1 are long since obsolete and most all applications
out there are designed specifically for use with MySQL v5.x now.