1、下載安裝包
http://dev.mysql.com/downloads/mysql/#downloads
Select Operating System:選擇Linux-Generic
Select OS Version:選擇Linux - Generic (glibc 2.12) (x86, 64-bit)
下載Compressed TAR Archive下面的tar.gz包
（注意：黃底爲用戶輸入，綠底爲shell輸出）
2、 檢查庫文件是否存在，如有刪除。
[root@localhost Desktop]$ rpm -qa | grep mysql
mysql-libs-5.1.52-1.el6_0.1.x86_64
[root@localhost ~]# rpm -e mysql-libs-5.1.52.x86_64 --nodeps
3.檢查mysql組和用戶是否存在，如無創建。
[root@localhost ~]# cat /etc/group | grep mysql
mysql:x:490:
[root@localhost ~]# cat /etc/passwd | grep mysql
mysql:x:496:490::/home/mysql:/bin/bash
以上爲默認存在的情況，如無，執行添加命令：
[root@localhost ~]#groupadd mysql
[root@localhost ~]#useradd -r -g mysql mysql
//useradd -r參數表示mysql用戶是系統用戶，不可用於登錄系統。
4.解壓TAR包並重命名、創建data文件夾
[root@localhost /]# cd /opt/software/
[root@localhost software]# tar -zxvfmysql-5.7.19-linux-glibc2.12-x86_64.tar.gz -C /usr/local
[root@localhostsoftware]# cd /usr/local/
[root@localhostlocal]# ls
bin games lib libexec sbin src
etc include lib64 mysql-5.7.19-linux-glibc2.12-x86_64 share
[root@localhostlocal]# mv mysql-5.7.19-linux-glibc2.12-x86_64/ mysql
[root@localhostlocal]# cd mysql/
[root@localhostmysql]# mkdir data
5.安裝和初始化數據庫
[root@localhost mysql]# bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
2016-06-01 15:23:25 [WARNING] mysql_install_dbis deprecated. Please consider switching to mysqld –initialize
warnging:部分mysql包support-file目錄下沒有my-default.cnf，可將下面方框內內容複製保存到/usr/localmysql/support-file/my-default.cnf
若support-file目錄下存在my-default.cnf，則修改紅色字體部分即可
| # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [mysqld] # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306 # server_id = ..... # socket = ..... # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES |
把support-files下的my-default.cnf複製到/etc並重命名，mysql.server複製到/etc/init.d並重命名
[root@localhost mysql]#
cp -a./support-files/my-default.cnf /etc/my.cnf
[root@localhost mysql]# cp -a ./support-files/mysql.server /etc/init.d/mysqld
[root@localhost mysql]#
bin/mysqld_safe --user=mysql &
[1]2932
[root@localhost bin]# 2016-06-01T22:27:09.708557Z mysqld_safe Logging to'/usr/local/mysql/data/localhost.localdomain.err'.
2016-06-01T22:27:09.854913Z mysqld_safe Starting mysqld daemon with databasesfrom /usr/local/mysql/data(這裏需要回車)
[root@localhost bin]# /etc/init.d/mysqld restart
Shutting downMySQL..2017-11-03T02:55:33.863504Z mysqld_safe mysqld from pid file/usr/local/mysql/data/localhost.localdomain.pid ended
SUCCESS!
Starting MySQL. SUCCESS!
[1]+ Done mysqld_safe --user=mysql
[root@localhost bin]#
配置環境變量
在/etc/profile 尾部增加export PATH=/usr/local/mysql/bin:$PATH
[root@localhost /]# source /etc/profile
//設置開機啓動
[root@localhost bin]# chkconfig --level 35 mysqld on
[root@localhost bin]#
6.初始化密碼
mysql5.7會生成一個初始化密碼
[root@localhost bin]# cat /root/.mysql_secret
# Password set for user 'root@localhost' at 2016-06-01 15:23:25
,xxxxxR5H9
複製該密碼
//登陸數據庫
[root@localhost bin]#
mysql -u root -p
Enter password:
//修改root賬號密碼
mysql> SET PASSWORD = PASSWORD('root');
mysql> flush privileges;
7.添加遠程訪問權限
mysql> use mysql;
mysql> updateuser set host = '%' where user = 'root';
//退出數據庫
mysql>exit;
[root@localhost bin]# /etc/init.d/mysqld restart
8、開啓3306端口
[root@localhost bin]# vi /etc/sysconfig/iptables
增加
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
重啓防火牆
[root@localhost bin]# /etc/init.d/iptables restart
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: [ OK ]
[root@localhost bin]#