mysql: unrecognized service - mariadb

Question

I followed the instruction here to install mariadb on WSL after following the steps. and I run this
sudo service mysql start
I got
mysql: unrecognized service
Any idea how to solve this?

Answer 1

It's just a simple problem as you see but it takes me 24 hours to diagnose the problem.
Solution:
I uninstall mariadb with this command
sudo apt-get remove --auto-remove mariadb-server
and install sudo apt install mysql-server instead but it leads to a more problems
Successfully install mysql but can't start
dpkg: error processing package mysql-server (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
mysql-server-5.7
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
so by removing mariadb's deb sources and purging mysql-common and then reinstalling it.
do:
sudo apt edit-sources
and look for anything containing mariadb like: deb [arch=amd64,arm64,ppc64el] http://ftp.nluug.nl/db/mariadb/repo/10.3/ubuntu bionic main
comment it out by putting a # in front of it. then run
sudo apt update
sudo apt purge mysql-common
sudo apt install mysql-common
after that you can installed mysql-server properly via sudo apt install mysql-server, then do:
sudo apt purge mysql-server mysql-server-5.7
sudo apt purge mysql-server mysql-client mysql-common mysql-server-core-5.7 mysql-client-core-5.7
sudo rm -rfv /etc/mysql /var/lib/mysql
sudo apt autoremove
sudo apt autoclean
Finally:
sudo apt update
sudo apt install mysql-server mysql-client --fix-broken --fix-missing
References:
https://askubuntu.com/questions/980314/cannot-install-mysql-server-in-ubuntu16-0-4
https://askubuntu.com/questions/763534/cannot-reinstall-mysql-server-after-its-purge

Answer 2

Which Linux distribution are you using on your WSL?
First, try the following:
systemctl {start|stop|restart|status} mysql
OR
service mysql {start|stop|restart|status}
to manage the MySQL service.
The reasons can be the following:
Wrong service name:
On some Linux distributions, the service is named as mysqld instead of mysql.
To check: Run chkconfig --list on your WSL and identify the correct service name.
File permission issues:
Please ensure that the files in /var/lib/mysql have 770 permissions and ownership set to mysql user.
To fix:
chmod -R 770 /var/lib/mysql
chgrp -R mysql /var/lib/mysql
In addition to that, ensure that the /etc/rc.d/init.d/mysqld script has executable permissions to modify mysqld.
To fix:
chmod 755 /etc/rc.d/init.d/mysqld
Missing/Corrupted MySQL server package:
Reinstall MySQL!