一,准備工作。
查看系統版本:
[root@localhost ~]# uname -a Linux localhost.localdomain 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux [root@localhost ~]# cat /etc/redhat-release CentOS Linux release 7.4.1708 (Core) [root@localhost ~]#
mysql的rpm包下載地址
https://dev.mysql.com/downloads/mysql/5.7.html#downloads
下載,mysql-5.7.29-1.el7.x86_64.rpm-bundle.tar 大小520.5M
卸載CentOS7.4系統自帶的mariadb
[root@localhost ~]# rpm -qa|grep mariadb mariadb-libs-5.5.56-2.el7.x86_64 [root@localhost ~]# rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64 [root@localhost ~]# rpm -qa|grep mariadb [root@localhost ~]#
將mysql-5.7.29-1.el7.x86_64.rpm-bundle.tar 拷貝到/tmp下,並解壓
解壓
[root@localhost tmp]# tar xvf mysql-5.7.29-1.el7.x86_64.rpm-bundle.tar mysql-community-embedded-devel-5.7.29-1.el7.x86_64.rpm mysql-community-test-5.7.29-1.el7.x86_64.rpm mysql-community-embedded-5.7.29-1.el7.x86_64.rpm mysql-community-embedded-compat-5.7.29-1.el7.x86_64.rpm mysql-community-libs-5.7.29-1.el7.x86_64.rpm mysql-community-client-5.7.29-1.el7.x86_64.rpm mysql-community-server-5.7.29-1.el7.x86_64.rpm mysql-community-devel-5.7.29-1.el7.x86_64.rpm mysql-community-libs-compat-5.7.29-1.el7.x86_64.rpm mysql-community-common-5.7.29-1.el7.x86_64.rpm
依次安裝:
mysql-community-common-5.7.29-1.el7.x86_64.rpm、
mysql-community-libs-5.7.29-1.el7.x86_64.rpm、
mysql-community-client-5.7.29-1.el7.x86_64.rpm、
mysql-community-server-5.7.29-1.el7.x86_64.rpm
安裝common
[root@localhost tmp]# rpm -ivh mysql-community-common-5.7.29-1.el7.x86_64.rpm warning: mysql-community-common-5.7.29-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.29-1.e################################# [100%] [root@localhost tmp]#
安裝libs
[root@localhost tmp]# rpm -ivh mysql-community-libs-5.7.29-1.el7.x86_64.rpm warning: mysql-community-libs-5.7.29-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-libs-5.7.29-1.el7################################# [100%] [root@localhost tmp]#
安裝client
[root@localhost tmp]# rpm -ivh mysql-community-client-5.7.29-1.el7.x86_64.rpm warning: mysql-community-client-5.7.29-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-client-5.7.29-1.e################################# [100%] [root@localhost tmp]#
安裝server
[root@localhost tmp]# rpm -ivh mysql-community-server-5.7.29-1.el7.x86_64.rpm warning: mysql-community-server-5.7.29-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-server-5.7.29-1.e################################# [100%] [root@localhost tmp]#
這一步如如果報錯,缺依賴的問題,需要掛載CentOS7.4的系統iso鏡像,安裝perl依賴、net-tools依賴
重啟系統,來啟動mysql服務
[root@localhost tmp]# reboot
查看防火牆端口,開放3306端口
[root@localhost ~]# firewall-cmd --query-port=3306/tcp
no
[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent
success
[root@localhost ~]# firewall-cmd --reload
success
[root@localhost ~]# firewall-cmd --query-port=3306/tcp
yes
[root@localhost ~]#
設置數據庫日志過期天數為14天
獲取mysql的root用戶的初始密碼
[root@localhost ~]# grep 'password' /var/log/mysqld.log 2020-01-14T01:09:01.515663Z 1 [Note] A temporary password is generated for root@localhost: vx*biwua,8/Q [root@localhost ~]#
以獲取mysql的root用戶的初始密碼登錄數據庫
[root@localhost ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 5 Server version: 5.7.29
修改root密碼
mysql> alter user 'root'@'localhost' identified by '2020root$PWD'; Query OK, 0 rows affected (0.01 sec) mysql>
使密碼即時生效
mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql>
允許以root身份遠程登錄mysql
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '2020root$PWD' WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql>
修改mysql的字符集為utf8
編輯文件/etc/my.conf,設置字符集為utf8
vi /etc/my.cnf
重起mysql服務
[root@localhost ~]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service [root@localhost ~]#
測試登陸