Tutorial on installing mysql under centos7

rpm -e mysql //Normal deletion mode rpm -e --nodeps mysql //Forced deletion mode. If you are prompted to delete other dependent files when using the above command, you can use this command to forcefully delete them.

wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-boost-5.7.24.tar.gz
tar xvf mysql-boost-5.7.24.tar.gz
cd mysql-5.7.24

cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DSYSCONFDIR=/usr/local/mysql/etc \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/data/mysql.sock \
-DMYSQL_TCP_PORT=3306 \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DDOWNLOAD_BOOST=1 -DWITH_BOOST=./boost
make && make install

cat /etc/passwd #View the user list cat /etc/group #View the user group list

groupadd mysql
useradd -g mysql mysql

chown -R mysql:mysql /usr/local/mysql
MySQL 5.7.18 and later no longer provides a default MySQL configuration file. Here we found a simple configuration on the Internet.
vi /etc/my.cnf and then write the following content [client]
port = 3306
default-character-set=utf8

[mysqld]
# General configuration options basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character-set-server=utf8
default_storage_engine = InnoDB

sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Configure the service script cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
chkconfig mysql on #Add to startup items service mysql start #Start mysql
Add the mysql executable file to the path directory, vi /etc/profile

PATH=/usr/local/mysql/bin:$PATH
export PATH

cd /usr/local/mysql/bin
./mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
...
2019-04-11T14:34:15.922856Z 1 [Note] A temporary password is generated for root@localhost: /rTmud(Th5Yy

firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload