1 Download the rpm package of mysql 5.5 version
2 Upload the package file through the upload tool to the directory you want to follow for example ( /usr/local )
3 xshell tool command to enter the directory
4. Run the command
5If the following screen or a similar screen appears
It means that the Linux system has its own Mysql and needs to uninstall the original version of mysql: execute the command
Uninstall Mysql
yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
to see if there is still mysql software:
rpm -qa|grep mysql
continue to delete if there is any
Then execute the previous installation statement
6 The following screen appears, indicating that the installation is successful . At this time , the Mysql Server installation is successful. Change the password of mysql
Enter the /usr/bin directory to execute
'new --password' to your own password.
then exit to exit
7 Copy usr/share/mysql/my-medium.cnf to the /etc directory and change the name to my.cnf
Then add the red arrow configuration in my.cnf (this is for versions after 5.5 , because mysqld does not recognize the default-character-set variable after version 5.5 )
8. After modifying the configuration file, execute the following command (set the navicat for mysql connection password)
grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
9 . Modify the firewall configuration to release port 3306 ( modify the /etc/sysconfig/iptables file service iptables restart firewall restart )
After completing the above steps, Mysql is installed. At this time, you can use navicat for mysql to link the database you installed.