MYSQL教程
libaio
yum install -y libaio

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useradd -s /bin/false -M mysql

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cd /tools
wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz
tar -zxf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /application/

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cd /application/
mv mysql-5.7.18-linux-glibc2.5-x86_64/ mysql-5.7.18
ln -s mysql-5.7.18/ mysql

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mkdir mysql/mysql-files
chmod 750 mysql/mysql-files
chown -R mysql:mysql mysql-5.7.18/

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cd mysql

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bin/mysqld --initialize --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data

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2017-04-28T02:49:00.853710Z 1 [Note] A temporary password is generated for root@localhost: wa0I:1w?V--a

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bin/mysqld --initialize-insecure --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data

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bin/mysql_ssl_rsa_setup --datadir /application/mysql/data/

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chown -R root .
chown -R mysql data mysql-files

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sed -i 's/^datadir=\/var\/lib\/mysql/datadir=\/application\/mysql\/data/g' /etc/my.cnf
sed -i 's/^socket=\/var\/lib\/mysql\/mysql.sock/socket=\/tmp\/mysql.sock/g' /etc/my.cnf
sed -i 's/^log-error=\/var\/log\/mariadb\/mariadb.log/log-error=\/application\/mysql\/data\/err.log/g' /etc/my.cnf
sed -i 's/^pid-file=\/var\/run\/mariadb\/mariadb.pid/pid-file=\/application\/mysql\/data\/mysql.pid/g' /etc/my.cnf

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vi /etc/my.cnf
datadir=/application/mysql/data
socket=/tmp/mysql.sock
log-error=/application/mysql/data/err.log
pid-file=/application/mysql/data/mysql.pid
/etc/my.cnf Content:
[mysqld]
datadir=/application/mysql/data
socket=/tmp/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
log-error=/application/mysql/data/err.log
pid-file=/application/mysql/data/mysql.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

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cp support-files/mysql.server /etc/init.d/mysql

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sed -i 's/^basedir=/basedir=\/application\/mysql/g' /etc/init.d/mysql
sed -i 's/^datadir=/datadir=\/application\/mysql\/data/g' /etc/init.d/mysql
sed -i 's/^mysqld_pid_file_path=/mysqld_pid_file_path=\/application\/mysql\/data\/mysql.pid/g' /etc/init.d/mysql

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basedir=
datadir=
mysqld_pid_file_path=

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basedir=/application/mysql
datadir=/application/mysql/data
mysqld_pid_file_path=/application/mysql/data/mysql.pid

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sed -i 's#/usr/local/mysql#/application/mysql#g' /etc/init.d/mysql

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ln -s /application/mysql/bin/* /usr/local/sbin

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[root@www mysql]# mysql -u root -p

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mysql> alter user 'root'@'localhost' identified by 'NewPassWord';

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mysql> quit
Bye
[root@www mysql]#
or
mysql> ^DBye
[root@www mysql]#

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mysql -u root -p

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service mysql start

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service mysql stop

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service mysql restart