Done a lot of installation, the number of failures before a database about themselves, is simply outrageous ... In retrospect, all the pain, Internet search tutorial, a series of step by step installation Anyway, I have not been successful.
This is a successful installation, and after a successful outcome after several tests, if once again keep after installation, can be installed directly, you do not look for so-called tutorial. Also helps people to this problem, a method is also encountered.
Proceed as follows:
PS:
This is /etc/my.cnf mysql main configuration file
/ var / lib / mysql mysql database file storage location database
log output storage position / var / log mysql database
A: first check whether you install mysql, if installed, uninstall
Command to check whether the installed: rpm -qa | grep mysql
uninstall command: yum -y remove installed mysql name
II: Installation mysql official source
Command:
wget -c -i http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
(probably about 20kb download quickly, do not think small, not down on)
Three: Download rpm package
命令：yum -y install mysql57-community-release-el7-10.noarch.rpm
Four: installation services of MySQL
Command: yum -y install MySQL-Community Community-Server
(this step a long time, it should be said to be a long, wait, you can drink a cup of coffee)
Five: Start the MySQL service
Command: systemctl start mysqld.service
Six: View Temporary Password
Command: grep "password" /var/log/mysqld.log
(last sentence, according to the English meaning to come, behind the colon, is the temporary password)
Seven: Change Password
1: Login
mysql：mysql -uroot -p
2: Enter the password
(Because the password can not be set too simple, so we have to change it)
3: Modified:
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;
4: Change Password:
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password';
5: each update operation to prevent yum
[root@localhost ~]# yum -y remove mysql57-community-release-el7-10.noarch
If what went wrong, comments down, study together, progress together.
For ease of management, the installation of phpmyadmin, graphical database management, please see this: centos7 install phpmyadmin (pro-test available)
Once again, remind yourself: seriously do technology, seriously man! Do not self-deception!