Since restoring from a backup mySQL won't start

Hello there,

I have a Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-29-generic x86_64) droplet which I ballsed up by attempting to upgrade Ubuntu.

So I restored it to a backup from 1 week ago. However, I can’t for the life of me seem to get mySQL to start. After restoring mySQL comes up for a matter of minutes and then dies refusing to start again.

Looking in syslog, it seems to die when this comes up:

Apr 3 23:47:25 localhost kernel: [ 360.410338] type=1400 audit(1428101245.773:24): apparmor=“STATUS” operation=“profile_replace” name=“/usr/sbin/mysqld” pid=2456 comm=“apparmor_parser”

Trying service mysql start come back with this:

start: Job failed to start

Does anyone have any idea what might be happening please?

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Edit your /etc/mysql/mysql.conf.d/mysqld.cnf

Find and change the bind-address = … to the IP of your droplet.

This issue happened to me once I created a new droplet from a backup. In the MySQL config file, the IP was from the old droplet.

To be honest I can’t remember what I did (as it was a few months ago now) but I managed to get dumps of the databases and then just fired up a new server to use only for my databases with a secure connection running between the web server and new database server. A better way to do it plus I set up regular database backups to avoid the issue happening again.