How to replace MySQL with Percona Server on Debian or Ubuntu

You can safely replace MySQL with Percona Server without lossing any data. In order to do it, please follow the instructions bellow

1. Import Percona GPG key

# apt-key adv --keyserver keys.gnupg.net --recv-keys 1C4CBDCDCD2EFD2A

2. Add this to /etc/apt/sources.list, replacing VERSION with the name of your distribution:

deb http://repo.percona.com/apt VERSION main
deb-src http://repo.percona.com/apt VERSION main

3. Update the local cache:

apt-get update

4. Install Percona packages. When asked please don’t change root password.

apt-get install percona-server-server-5.5 percona-server-client-5.5

5. Set Percona Server to auto-start

update-rc.d mysql defaults