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I installed MariaDB and it messed up Mysql and I can’t uninstall either

So, I’ve been messing around with Ubuntu lately and I’ve been running some Virtual hosts and a Terraria server. I decided to install Clipbucket on one of my Virtual servers and I found this guide: https://www.unixmen.com/install-clipbucket-ubuntu-15-10/.

I installed MariaDB, as the guide said, not thinking it would mess with my MySQL. My virtual hosts can’t connect to MySQL, I can’t run ‘mysql -u root -p’ because I get the error ‘
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock’ (2)’ after installing MariaDB

I tried to remove MariaDB but it gives this error:

Reading package lists… Done
Building dependency tree
Reading state information… Done
Package ‘mariadb-server’ is not installed, so not removed
You might want to run ‘apt –fix-broken install’ to correct these.
The following packages have unmet dependencies:
mysql-server : Depends: mysql-server-5.7 but it is not going to be installed
E: Unmet dependencies. Try ‘apt –fix-broken install’ with no packages (or
specify a solution).

I decided to run apt –fix-broken install and I get this:

Preconfiguring packages ...
(Reading database ... 92893 files and directories currently installed.)
Preparing to unpack .../mysql-server-5.7_5.7.20-0ubuntu0.17.04.1_amd64.deb 
...
Failed to stop mysql.service: Unit mysql.service not loaded.
invoke-rc.d: initscript mysql, action "stop" failed.
invoke-rc.d returned 5
There is a MySQL server running, but we failed in our attempts to stop it.
Stop it yourself and try again!
dpkg: error processing archive /var/cache/apt/archives/mysql-server-
5.7_5.7.20-0ubuntu0.17.04.1_amd64.deb (--unpack):
subprocess new pre-installation script returned error exit status 1
Errors were encountered while processing:
/var/cache/apt/archives/mysql-server-5.7_5.7.20-0ubuntu0.17.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Now, I’d like to keep my databases but I don’t need really need them, I just don’t want to re-make them. I’ve been trying to figure out what to do for a while and I’m just getting really annoyed ;/

EDIT: I couldn’t really do anything including apt-get install because it would tell me that it needed the mysql-5.7 for mysql-server and it would fail. I just ended up re-formatting and obviously everything is working fine, and no, my databases did not work so I will have to re-do those as well.

Source: Stackoverflow MariaDB

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