Ubuntu 10.x completely remove and clean MySQL installation

In my attempt to move the MySQL datadir I have a messed up MySQL installation. Here’s how I’ve completely removed MySQL 5.1 from Ubuntu 10.x. i have a messed up installation and need to completely remove MySQL and re-install it. Warning, this will delete *everything* associated with MySQL on ubuntu! It does give you a fresh install!

using apt:
apt-get –purge remove mysql-server
apt-get –purge remove mysql-client
apt-get –purge remove mysql-common

apt-get autoremove
apt-get autoclean

using aptitude (some people claim aptitude does a better job of removing dependencies):
aptitude remove mysql-client
aptitude remove mysql-server
aptitude remove mysql-common

see if anything depends on the installed packages
apt-cache rdepends mysql-server
apt-cache rdepends mysql-client

if you’ve changed apparmor settings change them back inside here:
pico /etc/apparmor.d/usr.sbin.mysqld

delete preferences(the next find command will delete everything):
rm -rf /etc/mysql

find all files with “mysql” on / and delete them:
find / -iname ‘mysql*’ -exec rm -rf {} \;

after all of the above do a clean install
aptitude install mysql-server mysql-client

check to see if mysql is running:
service mysql status

and you should get the response running

mysql start/running, process 3296

check with mysqladmin:

mysqladmin -u root -p status

28 thoughts on “Ubuntu 10.x completely remove and clean MySQL installation”

  1. absolute legend. been wresting with a lamp mysql installation for a day now, wish I had just done this at the start!

  2. Good resume! I had only one issue because of typing without thinking. I have a dual boot with a WAMP under Vista on the other SO, so when rm -rf inside the find… it looked into my Media/Data disk… well… I will have to reinstall WAMP xD

  3. And if you want to get rid of the database files themselves, you may need to delete /usr/local/mysql or /var/lib/mysql or somewhere else depending on your distro.

  4. Great fix, man. I originally used aptitude to unistall mysql. However, I ran into some trouble. It didn’t seem to uninstall everything..but, apt-get did the trick. I’m new to Linux, so it was probably something I did

  5. It doesn’t work when the mysql.sock is missing!! tried to uninstall because mysql.sock was missing, and i couldn’t porperly uninstall mysql!!

  6. After literally days of searching the web for a fix to a suddenly non-functioning MySQL installation, I found your fix. Excellent! It worked. I’m back in business. I won’t even attempt to list all the other things I tried first. Muchas gracias.

  7. I recommend NOT to use the

    find / -iname ‘mysql*’ -exec rm -rf {} \;

    – it will delete ALL files starting with the name “mysql” on your system – no matter if they have anything to do with the MySQL package or not.

    For example: If you have a file like:

    mysql-my-very-important-thesis.docx

    it will be deleted.

  8. Hi
    Thanks alot man , i was try to work on Yii , one of the PHP frameworks and long story short my mysql try to mess with me until i find your article and it work great .

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