How to uninstall mariadb

How to completely uninstall MariaDB from a Debian 7 server

There are many guides about how to install and configure popular applications on Linux servers, but not much on how to remove them.

I found this out when I needed to install a MariaDB Galera cluster on a server which already had a stand-alone MariaDB server installed. Having the older version of MariaDB installed (and the older repository in the source list) meant all of the guides I was following didn’t work due to conflicting packages.

This guide will explain how to completely remove MariaDB from your system (including any databases).

Here is how you remove MariaDB from a Debian 7 Linux server.

Stop any running instanced of MariaDB

First, you need to stop any running instances of MariaDB. To do this, type the following in the console:

Remove all MySQL packages from the system

Warning: this will delete all databases from your server. Make sure you have backed everything up before doing this.

Run the following command. This will use apt-get to remove all packages with the name beginning with “mysql”. The –purge switch tells it to purge all configs and related files from the system.

After you run this, you will see something similar to this:

This is telling you what packages will be removed. If you wish to continue uninstalling MariaDB then press Y and hit enter.

If everything has worked as expected you will see this message:

If you are happy to lose all of your databases, select yes and press enter.

MariaDB is now removed.

Remove the configs file

Now MariaDB has been completely uninstalled, the next step is to ensure all configs are gone. the –purge switch we used earlier tells apt-get to remove all configs, however it will only remove the default configs that came with the install. Any custom configs that were added after the install will still be there.

The configs are usually located at /etc/mysql/. I would not suggest just deleting them (in-case you need them later). However I would suggest moving them to a different directory. This is how you would move them to the /tmp/ directory:

Warning: Some servers are configured to delete the contents of the /tmp/ directory on reboot. If you want to keep the configs safe it’s best to move them to your home directory.

Remove from the source list

The final step is to remove the old package repositories from the sources file. This is what got me stuck when trying to install MariaDB Galera before, because I had the old repositories in the source list it would cause conflicts. Here is how you remove them:

First open the sources.list file in your editor of course (I use vi in this example):

In this file (usually near the bottom), locate the lines which contain “MariaDB”. Comment out these lines by appending a # to the beginning of them. This is how mine looks (although yours may vary depending on the version of MariaDB you previously had installed):

Now save the file.

The final step, is to update apt-get by running the below line:

That’s it. MariaDB is now completely removed from your system. In order to re-install it, (or install Galera) you must follow the instructions on https://mariadb.org/

Thank you for reading. I hope that you found this helpful. If you have any questions please write them in the comments below.

How to install MariaDB + Uninstallation steps

In this MariaDB tutorial, we will learn, how to install MariaDB in windows, Linux, and Ubuntu. Also, we will see how to uninstall MariaDB step by step on different Operating Systems like Windows, Linus, Ubuntu, etc.

Additionally, we will cover the following topics

Downloading MariaDB

To download MariaDB, go to the official page and select the latest version to download: Download MariaDB

The MariaDB software is managed by the MariaDB Foundation whose headquarters is in Finland and the United States Of America.

MariaDB Installation and Configuration on Windows

Let us see step by step how to start the installation of MariaDB in Windows operating system.

To start the installation of MariaDB on Windows, you need to follow these steps:

Step 1 – Double-click on the installer to start the installation process.

Step 2 – Accept the End-User Agreement and click the Next button.

Step 3 – Select the way we want to start the installation of the features and choose the directory that stores the MariaDB files and click on the Next button. The default location on windows is C:\Program Files MariaDB 10.6\

Step 4 – Create a password for the Root user account. You will later use this password to access MariaDB Server. The root user is the default user which has all the privileges

If you don’t want the root user to log in from remote machines, uncheck the Enable access from remote machines for ‘root’ user

The Use UTF8 as default server’s character set the option allows us for using the UTF8 character set while creating new databases and tables.

Once you select all the options, click on the Next button to go to the next step.

Step 5 – In this step:

Firstly, install MariaDB as a service by clicking on Install as service and it will allow you to change the name of the service.

Secondly, you need to configure the port for the MariaDB. By default, it uses 3306 but you can change the port if you want.

Thirdly, specify the parameters InnoDB engine including Buffer pool size and Page size. 16KB is suitable for most of the databases.

Finally, click on the Next button to go on to the next step.

Step 6 – Click Install to start the installation.

It may take a few minutes to complete depending upon the system.

Step 7 – Click on the Finish button to complete the MariaDB installation.

Now, you can find MariaDB tools in the Start menu.

This is how to start the installation of MariaDB on windows OS.

MariaDB installation on Linux step by step

Now, let us see how to start the installation of MariaDB on Linux.

To start the installation of MariaDB on Linux, you need to follow these steps:

Step 1 – Check the Linux version by using the below command before we download MariaDB.

Step 2 – Create or edit already existing MariaDB.repo using the below command.

After running this command, we will see whether there is any content inside that repo if there is no content in it. Then, you need to copy the below commands in that file.

Save the file with:wq!

Step 3 – Now, install the MariaDB Server and MariaDB Client using this command.

This may take time depending upon the machine.

After the completion of the installation, if you want to check whether the service has started or not. To check this you need to use #cd/var and #cd/lib commands. If mysql is present then the installation went right.

Step 4 – To start the MariaDB service, use the below command.

Now you can use the below command to see whether the service has started or not.

Step 5 – Run the secure installation by using the below command to configure the root password and other features. Then, you can set a new root password and other features.

Step 6 – Now, login to MariaDB using Root using the below command.

The installation of MariaDB in Linux has been completed.

MariaDB installation in Ubuntu

Let us see, how to start the installation of MariaDB in Ubuntu.

There are two ways in Ubuntu by which we can install MariaDB

Installing MariaDB using Ubuntu Repository

For installing MariaDB Server in Ubuntu using the Ubuntu repository, follow the given steps provided below:

Step 1 – In this, we need the package index to be updated. For that, you need to run the statement.

Your packages are updated after executing this command.

Step 2 – After the list of packages has been up-to-date, you should now start installing MariaDB by running the statement.

We may be asked to enter the credentials for the user.

Step 3 – Service of MariaDB will automatically start. However, we can check the status after executing the below query.

The status will be running and active.

To check the MariaDB version that is installed, you can execute the below statement.

The output of the statement will be the MariaDB version installed and it is the confirmation that we have installed MariaDB successfully on Ubuntu.

Install MariaDB using MariaDB Repository

MariaDB repositories have the latest MariaDB version. Before initiating the process of installation, we must have a look at the MariaDB official website and verify the latest MariaDB version.

To start the installation of MariaDB in Ubuntu using the MariaDB repository, follow the steps provided below:

Step I – In this step, you need to run the below command for adding the GPG key of MariaDB with Ubuntu.

Step II – After the key is imported, execute the statement for adding the repository of MariaDB.

If we encounter an error stating “add-apt-repository command not found”, we need to start the installation of the “software-properties-common” packages.

Step III – Before the installation of any other packages present in the repositories of MariaDB, we should keep the package lists updated. For this, you need to execute the below statement.

Step IV – After adding the repository, we need to execute the below command to start the installation of the package of MariaDB.

Step V – Although, the service automatically starts, to check the status, execute the below statement.

The status will be running and active.

Step VI – To verify the MariaDB version installed on our PC, we need to run the below command and it will also ensure that the installation is completed successfully.

Uninstall MariaDB from Windows

There are several methods to uninstall MariaDB from Windows. Some of them are mentioned below.

Method 1

When any new piece of program is installed on your computer, that program is added to the list of Programs and Features. You can uninstall the program from that list. To uninstall MariaDB from your computer follow the steps

Step 1 – Press the Windows and X keys together to open a menu and click on Apps and Features at the top of the menu.

Step 2 – Then, Setting Window will open, and in that window, you need to click on Programs and Features present in the top-right corner.

Step 3 – You will see the list of programs installed on your computer. You need to select MariaDB and then click on Uninstall Button.

Method 2

In this method, you only need to go to the installation file of MariaDB and find uninstall.exe or unins000.exe. Then, you need to double-click on it and follow the wizard to uninstall MariaDB.

Method 3

In this method, you need not uninstall MariaDB manually as it does not remove it completely. So, it’s recommended that you uninstall MariaDB with a trusted third-party uninstaller that can identify and remove all files of MariaDB.

Note – If nothing works, then we can uninstall MariaDB via System restore by choosing a Restore point. But, you need to backup your data that was created or installed on your computer after the installation of MariaDB.

Uninstalling MariaDB in Linux

Step 1 – For uninstallation of MariaDB in Linux CentOS, you need to run the below command

When you don’t have a MariaDB client, then you run the above command without MariaDB-client.

Step 2 – The process of uninstallation does not erase the data directory /var/lib/mysql. For future use, we can leave it for further use. Otherwise, we can remove it by using the below command.

Uninstall MariaDB from Ubuntu

To delete MariaDB completely from your computer, you need to follow these steps.

Step 1 – Before the process of uninstallation, you need to see the status of MariaDB and the version of MariaDB by running the statement.

Step 2 – In this step, you need to run the purge command to erase the package of MariaDB.

Step 3 – Now, run the autoremove command to completely delete the configuration files.

Step 4 – To verify that the uninstallation is successfully completed, you need to check the status of the MariaDB service.

The output of this command will ensure you the uninstallation of the MariaDB service.

MariaDB Installation error setup wizard ended prematurely error

Here we will illustrate 2 methods to resolve the MariaDB Installation error setup wizard ended prematurely error.

First method

This kind of problem occurs in the system while installing the MariaDB application because some of the libraries don’t exist in the system that MariaDB uses. So before installing MariaDB make sure that the Microsoft Visual C++ 2015-2019 Redistributable existing in your system.

Now follow the below steps to install the MariaDB.

Second method

If the above steps don’t work then follow these steps.

After running the above steps, Now install the MariaDB on your system.

This is how to solve the MariaDB installation error.

You may like the following MariaDB tutorials:

In this tutorial, we have learned about the installation and uninstallation of MariaDB. Additionally, we have covered the following topics

I am Bijay having more than 15 years of experience in the Software Industry. During this time, I have worked on MariaDB and used it in a lot of projects. Most of our readers are from the United States, Canada, United Kingdom, Australia, New Zealand, etc.

Want to learn MariaDB? Check out all the articles and tutorials that I wrote on MariaDB. Also, I am a Microsoft MVP.

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How to Uninstall MariaDB from Windows 10

Step by Step video demo «How to Uninstall MariaDB from Windows 10».

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Как полностью удалить MariaDB в CentOS 7

Приветствую Вас, уважаемые читатели. Сегодня тема статьи: «Как полностью удалить MariaDB в CentOS 7». Иногда возникает необходимость удаления MariaDB со всеми настройками. Как правильно произвести удаление сервера баз данных, рассмотрим ниже в этой статье.

Однажды столкнулся с такой проблемой, не помню по какой причине (что-то накосячил с настройками), но нужно было переустановить сервер баз данных MariaDB. Казалось бы чего проще, запустил команду при помощи пакетного менеджера, несколько секунд и всё. Так я и поступил, произвёл удаление, и снова установил MariaDB. Но не тут то было. Причина по которой была произведена переустановка осталась незатронутой. Дело в том, что при удалении самого сервера баз данных не удаляются конфигурационные файлы, и в итоге при повторной установке, всё возвращается на «исходную».

Полное удаление MariaDB в CentOS 7

После установки Вы увидите, что от прежнего сервера баз данных не осталось никаких следов.

Сегодня мы рассмотрели тему: «Как полностью удалить MariaDB в CentOS 7». Пошагово рассмотрели процесс полного удаления сервера баз данных MariaDB в CentOS 7. Смотрите также видео по теме.

Надеюсь статья была вам полезна. До встречи в новых статьях.

Видео на тему «Как полностью удалить MariaDB в CentOS 7»:

* В зависимости от хостинг-провайдера и параметров самого сервера, ежемесячная оплата сервера, может быть дешевле, чем покупка многих платных vpn-клиентов (от 200 руб в месяц).

* При покупке платных vpn-клиентов, Вам предоставляют возможность одновременного использования максимум 5 устройств-клиентов, иногда даже с ограниченным трафиком. В случае с Персональным VPN-сервером, количество устройств-клиентов зависит от Вашего желания, и ограничивается только ресурсами самого сервера.

* Так как многие Vpn-сервисы в какой-либо форме производят сбор данных о своих пользователях, Персональный Vpn-сервер – это ещё и защита от утечек информации.

brandonsimpson / osx_uninstall_mysql_install_mariadb_homebrew.md

OSX How To: Uninstall native MySQL and install MariaDB via Homebrew

This is a short overview on how to completely remove any old mysql server installs in OSX and upgrade to MariaDB without conflicts. Things can get a bit weird when you have various old installs of MySQL server floating around, and utilizing homebrew to install and upgrade MariaDB as a drop in replacement for MySQL has worked well, especially if you’re used to managing MySQL installs via yum in linux.

First: Backup Your Data!

Backup all of your current databases with mysqldump

This isn’t a tutorial on backups, and there are many ways to do it. You should know how to backup your data anyway. For this example, we’ll do a full backup of our InnoDB databases.

Second: Backup Your MySQL User Permissions

Within the msyqldump above, make sure you have dumped the mysql.users table. Either do this, or dump your mysql table data independently, or make note of your existing mysql user permissions if you just want to manually add them to your clean new MariaDB server later. If you have a lot of different permissions setup, you will probably want to migrate them. If you don’t have many db users, you may want to add them manually later so you can get a refresher of how your user permissions are setup. Either way, you should understand your user permissions before removing your old database.

Dump your existing mysql table:

After installing your new MariaDB server, you can restore the mysql database by executing:

then make sure to flush privileges for the new user permissions to take effect:

You are now ready to remove everywhere MySQL has put itself into your OSX system. You may opt to move these folders to a backup folder instead of removing them, but for our case, we want to remove MySQL completely so there are no conflicts later.

First, check where mysql is running on your system:

You should see something like: /usr/local/mysql

Now, stop the database server:

And move/backup or remove the following folders/files:

These may not exist, but if they do, remove them to avoid any conflicts with other versions of MySQL:

Install MariaDB with Homebrew

First, make sure you have homebrew installed and running, and make sure everything is up to date:

After homebrew installs MariaDB server, follow the onscreen instructions on how to install the database ( mysql_install_db ) and add your startup scripts if you want MariaDB to load on boot. You should also run mysql_secure_installation to lock down your install and set your root password.

You should now be able to login to mysql with your new root user and see the MariaDB message from the server:

You can now import your mysql users and dumped databases file as needed.

Varun006 commented Jul 29, 2017 •

I am getting the below error when i install mariadb using brew.

Also, when i run

I get the following error.

I just have no idea, regarding what is wrong.

maindufeu commented Aug 1, 2017 •

Hi, I want to install MariaDB without homebrew But I had already install MariaDB with brew, someone knows how to uninstall?

I followed the steps above to install it and it worked, then I tried to install MariaDB from the web and it brokes down. Now I can’t use it either

mscheffer commented Nov 26, 2017

also getting ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

nouhabel commented Feb 13, 2018

is Mysql service started in your device?

10001oleg commented Mar 18, 2018

me to => Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

Juliamd commented Apr 1, 2018

I have trouble uninstalling mariadb 10.2.14 on my macOS High Sierra Version 10.13.4 and I don’t know coding. Please help. Thank you.

elhardoum commented Apr 4, 2018

@10001oleg it’s probably because the mysql daemon didn’t start yet. To do so run brew services start mariadb (or brew services start mysql for those who installed mysql client instead of mariadb client)

elhardoum commented Apr 4, 2018 •

tiwiex commented Jul 28, 2018

working on installing this on my OS X Sierra. It was usually a routine install. It is quite weird now. It installs but I can’t log in. I login as mysql but there is no table for user so there is really no root account anywhere. I have information_schema and test tables.

What could be going on here?
Thanks

dzpt commented Jun 10, 2019

❯ sudo /usr/local/mysql/support-files/mysql.server stop
Password:
ERROR! MySQL server PID file could not be found!

nikmanzotti commented Mar 23, 2020

also getting ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

Same problem, in my case I had this clue in the installation output:

And the actual path was /usr/local/etc/my.cnf

brandonsimpson commented Mar 24, 2020

Interesting to see everyone is still struggling with this 6 years later. I’d recommend not doing anything natively and simply spin up a docker container. Good luck!

nikmanzotti commented Mar 24, 2020 •

Interesting to see everyone is still struggling with this 6 years later. I’d recommend not doing anything natively and simply spin up a docker container. Good luck!

True story, learning Docker is on my to-do list!

Maybe it’s helpful for others, I’ll post here the solution that worked for me.

This post-install step was failing with no useful hint on the true problem:

This post suggested that it was because MySQL is installed but not yet running. It seemed to be true, as trying a mysql.server start I received this:

I thus decided to take a look at the suggested log file, finding the following error repeating several times:
[ERROR] Could not open mysql.plugin table. Some plugins may be not loaded

Through an internet research of this error, I found the previously mentioned post and implemented the solution provided below. In the post, people with similar problems were saying that to solve it they had to delete some log files (in a different folder compared to the one I deleted, but they weren’t using homebrew).

PROBLEM SOLUTION

Not sure if steps 3 to 5 (removing my.cnf and related) are needed, as I got this message even with the successful installation :

But post-install was correctly completed during installation, and everything seems to be working fine now!

juliorosseti commented May 15, 2020

Interesting to see everyone is still struggling with this 6 years later. I’d recommend not doing anything natively and simply spin up a docker container. Good luck!
https://hub.docker.com/_/mysql
https://hub.docker.com/_/mariadb

True story, learning Docker is on my to-do list!

Maybe it’s helpful for others, I’ll post here the solution that worked for me.

This post-install step was failing with no useful hint on the true problem:

This post suggested that it was because MySQL is installed but not yet running. It seemed to be true, as trying a mysql.server start I received this:

I thus decided to take a look at the suggested log file, finding the following error repeating several times:
[ERROR] Could not open mysql.plugin table. Some plugins may be not loaded

Through an internet research of this error, I found the previously mentioned post and implemented the solution provided below. In the post, people with similar problems were saying that to solve it they had to delete some log files (in a different folder compared to the one I deleted, but they weren’t using homebrew).

PROBLEM SOLUTION

Not sure if steps 3 to 5 (removing my.cnf and related) is needed, as I got this message even with the successful installation :

But post-install was correctly completed during installation, and everything seems to be working fine now!