Falha na instalação do MySQL no servidor

Question

Estou tentando instalar o MySQL (e phpmyadmin) . Primeiramente eu quero instalar o MySQL usando este comando:

sudo apt-get install mysql-server

Mas joga:

Reading package lists... Done
Building dependency tree
Reading state information... Done
mysql-server is already the newest version.
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 mysql-server : Depends: mysql-server-5.5 but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Eu pesquisei muito por esse erro sem resultado :-( . Eu tentei apt-get -f install e lança:

Do you want to continue? [Y/n] y
Preconfiguring packages ...
(Reading database ... 60463 files and directories currently installed.)
Preparing to unpack .../mysql-server-5.5_5.5.35+dfsg-1ubuntu1_amd64.deb ...
Aborting downgrade from (at least) 5.6 to 5.5.
If are sure you want to downgrade to 5.5, remove the file
/var/lib/mysql/debian-*.flag and try installing again.
dpkg: error processing archive /var/cache/apt/archives/mysql-server-5.5_5.5.35+dfsg-1ubuntu1_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/mysql-server-5.5_5.5.35+dfsg-1ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Alguma ideia de como posso resolver o problema?

    

Answer 1

você já tem mysql 5.6 instalado em sua máquina, tente este comando para ver a versão

mysql --version

para iniciar o serviço, tente este comando:

sudo service mysql start

se o erro persistir, você poderá purge do pacote existente e instalar um novo:

sudo apt-get purge mysql-server mysql-common 
sudo apt-get purge mysql-client
sudo apt-get autoremove mysql-server mysql-client mysql-common 
sudo apt-get autoclean mysql-server mysql-client mysql-common 

Para reinstalar:

sudo apt-get install mysql-server mysql-common mysql-client