Erro ao instalar o servidor mysql [duplicado]

Question

Estou recebendo o seguinte erro ao instalar o mysql

Passos que fiz: baixei o arquivo apt aqui link execute este comando

sudo dpkg -i path

Em que não há opção para selecionar 5.5, selecionei 5.6 então

sudo apt-get update
sudo apt-get install mysql-server

mas dá erro

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 mysql-server : Depends: mysql-server-5.5 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

/etc/apt/sources.list: link

/etc/apt/sources.list.d:

kubuntu-ci-stable-trusty.list
kubuntu-ci-stable-trusty.list.save
pwntools-binutils-trusty.list
pwntools-binutils-trusty.list.save
rvm-smplayer-trusty.list
webupd8team-java-trusty.list
webupd8team-java-trusty.list.save