Trying to purge mysql fails

I really messed up my mysql installation trying to rapidly setup Owncloud on a new install of Ubuntu 20.04 LTS server. Sadly I already setup many services that are running well, so I just want to completely purge mysql and setup again from scratch. I have tried following various tutorials about

sudo apt-get purge mysql*

However, all variations end with this very similar error and I cannot continue and trying to ignore and re-install mysql just fails. How can I force remove all mysql of this box and start that again?

Thanks for any help.

Error: (Reading database … 160886 files and directories currently installed.) Removing mysql-server-8.0 (8.0.23-0ubuntu0.20.04.1) … Failed to stop mysql.service: Unit mysql.service not loaded. invoke-rc.d: initscript mysql, action “stop” failed. dpkg: error processing package mysql-server-8.0 (–remove): installed mysql-server-8.0 package pre-removal script subprocess returned error exit status 1 dpkg: too many errors, stopping Failed to stop mysql.service: Unit mysql.service not loaded. invoke-rc.d: initscript mysql, action “stop” failed. Failed to start mysql.service: Unit mysql.service not found. invoke-rc.d: initscript mysql, action “start” failed. Unit mysql.service could not be found. dpkg: error while cleaning up: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 Errors were encountered while processing: mysql-server-8.0 Processing was halted because there were too many errors. E: Sub-process /usr/bin/dpkg returned an error code (1)