Completely uninstall MySQL under Linux detailed

Completely uninstall MySQL under Linux detailed

First, use the following command to view the current installation of MySQL, to find out if previously installed MySQL

1	rpm -qa|grep-i mysql

You can see the following as shown:

The display was previously installed:

Mysql-client-5.5.25a-1.rhel5

Mysql-server-5.5.25a-1.rhel5

2. Stop the MySQL service, delete the previously installed MySQL

Delete command:rpm -e –nodeps 包名

12	rpm -ev MySQL-client-5.5.25a-1.rhel5  rpm -ev MySQL-server-5.5.25a-1.rhel5

If the prompt depends on the package error, use the following command to try

1	rpm -ev MySQL-client-5.5.25a-1.rhel5 --nodeps

If you are prompted with an error:error: %preun(xxxxxx) scriptlet failed, exit status 1

Then try it with the following command:

1	rpm -e --noscripts MySQL-client-5.5.25a-1.rhel5

3, find the old version of MySQL directory, and delete the old version of MySQL files and libraries

1	find/ -name mysql

The search results are as follows:

12345

find/ -name mysql   /var/lib/mysql/var/lib/mysql/mysql/usr/lib64/mysql

Delete the corresponding MySQL directory

123	rm-rf /var/lib/mysqlrm -rf /var/lib/mysqlrm-rf /usr/lib64/mysql

Specific steps to find the directory and delete

Note: /etc/my.cnf will not be removed after uninstallation, manual removal is required

1	rm-rf /etc/my.cnf

4. Find out if the machine installs MySQL again

1	rpm -qa|grep-i mysql

Completely uninstall MySQL under Linux detailed