Problems installing MySQL on Ubuntu 20.04

Question

I am trying to install MySQL 8.0 in Ubuntu 20.04 with sudo apt install mysql-server , but this error keeps showing up after reinstalling and after using sudo dpkg --configure -a :

Setting up mysql-server-8.0 (8.0.25-0ubuntu0.20.04.1) ...
/var/lib/dpkg/info/mysql-server-8.0.postinst: line 191: /usr/share/mysql-common/
configure-symlinks: No such file or directory
dpkg: error processing package mysql-server-8.0 (--configure):
 installed mysql-server-8.0 package post-installation script subprocess returned
 error exit status 127
No apport report written because the error message indicates its a followup error from a previous failure.
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-8.0; however:
  Package mysql-server-8.0 is not configured yet.

dpkg: error processing package mysql-server (--configure):
 dependency problems - leaving unconfigured

I completely uninstalled MySQL and reinstalled it multiple times with sudo apt remove --purge --autoremove mysql-server , but the error persists.

Answer 1

I got the same problem and just found nice article to solve it..

Indeed deleting files directly from your MySQL folder is really not recommended. You can take a look at this guide here on how to delete old MySQL binary fileshere .

Regarding your current issue. In order to completely get rid of your MySQL installation you could run the following:

• Make sure MySQL is not running:

sudo systemctl stop mysql

• Then purge all of the MySQL packages:

sudo apt purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*

• Then delete all of the MySQL files:

sudo rm -rf /etc/mysql /var/lib/mysql /var/log/mysql

• Finally clean all packages that are not needed:
• List item

sudo apt autoremove
sudo apt autoclean

Hope that this helps, Regards,

Answer 2

Stop the Mysql if it is running

sudo systemctl stop mysql.service
sudo kill $(pgrep mysql)

Then purge everything, this will also remove Mysql-workbench

sudo apt-get remove --purge mysql-\* 

Then reinstall mysql-server and mysql-client

sudo apt-get install mysql-server mysql-client

Answer 3

It does not work. Tried 10x times.