Home Database Mysql Tutorial Detailed introduction to uninstalling MySQL database under Linux

Detailed introduction to uninstalling MySQL database under Linux

Jun 04, 2017 am 10:00 AM

How to uninstall MySQL on the Linux platform? This article mainly introduces the method of uninstalling the MySQL database under Linux, which has certain reference value. Interested friends can refer to

How to uninstall the MySQL database under Linux? The following summarizes and organizes the methods of uninstalling MySQL on the Linux platform. There are three main ways to install MySQL: binary package installation (Using Generic Binaries), RPM package installation, and source code installation. Corresponding to different installation methods, the uninstallation steps are somewhat different. If there are any deficiencies or errors in the article, please point it out or add to it!

MySQL uninstallation using RPM package installation method

1. Check whether the MySQL component is installed.

[root@DB-Server init.d]# rpm -qa | grep -i mysql
MySQL-devel-5.6.23-1.linux_glibc2.5
MySQL-client-5.6.23-1.linux_glibc2.5 
MySQL-server-5.6.23-1.linux_glibc2.5
Copy after login

As shown above, it means that the three components of client, server and devel of MySQL 5.6.23 version are installed.

2. Close the MySQL service before uninstalling

2.1 Method 1

[root@DB-Server init.d]# service mysql status
 MySQL running (25673)[ OK ]
[root@DB-Server init.d]# service mysql stop
 Shutting down MySQL..[ OK ]
[root@DB-Server init.d]# service mysql status
 MySQL is not running[FAILED]
Copy after login

2.2 Method 2

[root@DB-Server init.d]# ./mysql status
 MySQL running (26215)[ OK ]
[root@DB-Server init.d]# ./mysql stop
 Shutting down MySQL..[ OK ]
[root@DB-Server init.d]# ./mysql status
 MySQL is not running[FAILED]
[root@DB-Server init.d]#
Copy after login


[root@DB-Server init.d]# chkconfig --list | grep -i mysql
mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off 
[root@DB-Server init.d]#
Copy after login

3. Collect the folder information corresponding to MySQL

[root@DB-Server init.d]# whereis mysql
mysql: /usr/bin/mysql /usr/include/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz
Copy after login

It is best to use the find command to view the files related to the MySQL database for convenience later. CompletelydeleteMySQL.

[root@DB-Server init.d]# find / -name mysql
/etc/rc.d/init.d/mysql
/etc/logrotate.d/mysql
/var/lock/subsys/mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/include/mysql
/usr/include/mysql/mysql
/usr/bin/mysql
/usr/share/mysql
/usr/lib64/mysql
Copy after login

4. Uninstall and delete various MySQL components

[root@DB-Server init.d]# 
[root@DB-Server init.d]# rpm -ev MySQL-devel-5.6.23-1.linux_glibc2.5
[root@DB-Server init.d]# rpm -ev MySQL-server-5.6.23-1.linux_glibc2.5
You have new mail in /var/spool/mail/root
[root@DB-Server init.d]# rpm -ev MySQL-client-5.6.23-1.linux_glibc2.5
[root@DB-Server init.d]#
Copy after login

5. Delete the files corresponding to MySQL Folder

Check whether each MySQL folder is clean and deleted.

[root@DB-Server init.d]# whereis mysql
mysql:
[root@DB-Server init.d]# find / -name mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/lib64/mysql
[root@DB-Server init.d]# rm -rf /var/lib/mysql
[root@DB-Server init.d]# rm -rf /var/lib/mysql/mysql
[root@DB-Server init.d]# rm -rf /usr/lib64/mysql
[root@DB-Server init.d]#
Copy after login

6. Delete the mysql user and user group

If necessary, delete the mysql user and mysql user group.

[root@DB-Server ~]# more /etc/passwd | grep mysql
mysql:x:101:501::/home/mysql:/bin/bash
[root@DB-Server ~]# more /etc/shadow | grep mysql
mysql:!!:16496::::::
[root@DB-Server ~]# more /etc/group | grep mysql
mysql:x:501:
[root@DB-Server ~]# userdel mysql
[root@DB-Server ~]# groupdel mysql
groupdel: group mysql does not exist
[root@DB-Server ~]#
Copy after login

7. Confirm whether MySQL is uninstalled and deleted

[root@DB-Server init.d]# rpm -qa | grep -i mysql
Copy after login
Copy after login

Uninstall MySQL using binary package/source code installation method

If MySQL is installed using binary package , then you will not be able to find any MySQL components using the following command. So if you don’t know how to install MySQL, never use the following command to determine whether MySQL is installed

[root@DB-Server init.d]# rpm -qa | grep -i mysql
Copy after login
Copy after login

1. Check the MySQL service and close the service process.

First check whether there is a status of the MySQL service through the process. As shown below, the MySQL service is started.

[root@DB-Server init.d]# ps -ef | grep mysql
root   4752 4302 0 22:55 pts/1  00:00:00 more /etc/init.d/mysql.server
root   7176   1 0 23:23 pts/1  00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid
mysql   7269 7176 15 23:23 pts/1  00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/data/DB-Server.localdomain.err --pid-file=/usr/local/mysql/data/DB-Server.localdomain.pid
root   7321 4302 0 23:23 pts/1  00:00:00 grep mysql
[root@DB-Server init.d]# /etc/init.d/mysql.server status
MySQL running (7269)[ OK ]
[root@DB-Server init.d]# /etc/init.d/mysql.server stop
Shutting down MySQL..[ OK ]
[root@DB-Server init.d]# /etc/init.d/mysql.server status
MySQL is not running[FAILED]
[root@DB-Server init.d]#
Copy after login

2. Find the MySQL installation directory and delete it completely

[root@DB-Server init.d]# whereis mysql
 mysql: /usr/local/mysql
 [root@DB-Server init.d]# find / -name mysql
 /var/spool/mail/mysql
 /usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/include/mysql
 /usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/bin/mysql
 /usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/data/mysql
 /usr/local/mysql
Copy after login

[root@DB-Server init.d]# rm -rf /usr/local/mysql-5.7.5-m15-linux-glibc2.5-x86_64/ 
[root@DB-Server init.d]# rm -rf /usr/local/ 
[root@DB-Server init.d]# rm -rf /var/spool/mail/mysql 
[root@DB-Server init.d]#
Copy after login

3. Delete some

Configuration fileThe configuration file is generally /etc/my.cnf or /etc/init.d/mysql.server, depending on the specific installation configuration.

4. Delete MySQL users and user groups

[root@DB-Server ~]# id mysql 
uid=101(mysql) gid=501(mysql) groups=501(mysql) context=root:system_r:unconfined_t:SystemLow-SystemHigh 
[root@DB-Server ~]# userdel mysql
Copy after login
Reference materials:

Detailed explanation of completely uninstalling mysql under Linux

The above is the detailed content of Detailed introduction to uninstalling MySQL database under Linux. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

deepseek web version entrance deepseek official website entrance deepseek web version entrance deepseek official website entrance Feb 19, 2025 pm 04:54 PM

DeepSeek is a powerful intelligent search and analysis tool that provides two access methods: web version and official website. The web version is convenient and efficient, and can be used without installation; the official website provides comprehensive product information, download resources and support services. Whether individuals or corporate users, they can easily obtain and analyze massive data through DeepSeek to improve work efficiency, assist decision-making and promote innovation.

How to fix mysql_native_password not loaded errors on MySQL 8.4 How to fix mysql_native_password not loaded errors on MySQL 8.4 Dec 09, 2024 am 11:42 AM

One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app

How to install deepseek How to install deepseek Feb 19, 2025 pm 05:48 PM

There are many ways to install DeepSeek, including: compile from source (for experienced developers) using precompiled packages (for Windows users) using Docker containers (for most convenient, no need to worry about compatibility) No matter which method you choose, Please read the official documents carefully and prepare them fully to avoid unnecessary trouble.

BITGet official website installation (2025 beginner's guide) BITGet official website installation (2025 beginner's guide) Feb 21, 2025 pm 08:42 PM

BITGet is a cryptocurrency exchange that provides a variety of trading services including spot trading, contract trading and derivatives. Founded in 2018, the exchange is headquartered in Singapore and is committed to providing users with a safe and reliable trading platform. BITGet offers a variety of trading pairs, including BTC/USDT, ETH/USDT and XRP/USDT. Additionally, the exchange has a reputation for security and liquidity and offers a variety of features such as premium order types, leveraged trading and 24/7 customer support.

Ouyi okx installation package is directly included Ouyi okx installation package is directly included Feb 21, 2025 pm 08:00 PM

Ouyi OKX, the world's leading digital asset exchange, has now launched an official installation package to provide a safe and convenient trading experience. The OKX installation package of Ouyi does not need to be accessed through a browser. It can directly install independent applications on the device, creating a stable and efficient trading platform for users. The installation process is simple and easy to understand. Users only need to download the latest version of the installation package and follow the prompts to complete the installation step by step.

Get the gate.io installation package for free Get the gate.io installation package for free Feb 21, 2025 pm 08:21 PM

Gate.io is a popular cryptocurrency exchange that users can use by downloading its installation package and installing it on their devices. The steps to obtain the installation package are as follows: Visit the official website of Gate.io, click "Download", select the corresponding operating system (Windows, Mac or Linux), and download the installation package to your computer. It is recommended to temporarily disable antivirus software or firewall during installation to ensure smooth installation. After completion, the user needs to create a Gate.io account to start using it.

Ouyi Exchange Download Official Portal Ouyi Exchange Download Official Portal Feb 21, 2025 pm 07:51 PM

Ouyi, also known as OKX, is a world-leading cryptocurrency trading platform. The article provides a download portal for Ouyi's official installation package, which facilitates users to install Ouyi client on different devices. This installation package supports Windows, Mac, Android and iOS systems. Users can choose the corresponding version to download according to their device type. After the installation is completed, users can register or log in to the Ouyi account, start trading cryptocurrencies and enjoy other services provided by the platform.

gate.io official website registration installation package link gate.io official website registration installation package link Feb 21, 2025 pm 08:15 PM

Gate.io is a highly acclaimed cryptocurrency trading platform known for its extensive token selection, low transaction fees and a user-friendly interface. With its advanced security features and excellent customer service, Gate.io provides traders with a reliable and convenient cryptocurrency trading environment. If you want to join Gate.io, please click the link provided to download the official registration installation package to start your cryptocurrency trading journey.

See all articles