在centos7离线安装mysql_CentOS7离线安装MySQL
1.刪除原有的mariadb,不然mysql裝不進去
mariadb-libs-5.5.52-1.el7.x86_64
rpm -qa|grep mariadb
rpm -e --nodeps mariadb-libs
1.在https://dev.mysql.com/downloads/mysql/選擇為Red Hat Enterprise Linux 7 / Oracle Linux 7 ,把os的版本選擇為all。
直接下載mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar,所有的rpm包都在里面
rpm -ivh mysql-community-common-5.7.21-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.21-1.el7.x86_64.rpm
rpm -ivh mysql-community-devel-5.7.21-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-5.7.21-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.21-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.21-1.el7.x86_64.rpm
至此,mysql5.7所有文件安裝完畢,接下來就是開啟服務測試了。
1.首先關閉mysql服務:
service mysqld stop
2.然后修改配置文件:
vim /etc/my.cnf
3.接下來加入一句代碼即可空密碼登錄mysql:
# Disabling symbolic-links is recommended to prevent assorted security risks
skip-grant-tables #添加這句話,這時候登入mysql就不需要密碼
symbolic-links=0
4.開啟mysql服務:
service mysqld start
5.空密碼登錄mysql:
mysql -u root -p #輸入命令回車進入,出現輸入密碼提示直接回車
6.設置mysql密碼:
mysql> set password for root@localhost = password('123456');
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
mysql> flush privileges; #更新權限
Query OK, 0 rows affected (0.00 sec)
mysql> set password for root@localhost = password('123456'); Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql>flush privileges; #更新權限
mysql>quit; #退出
service mysqld stop # 停止mysql服務, 恢復mysql配置
vim /etc/my.cnf #修改配置文件
# Disabling symbolic-links is recommended to prevent assorted security risks
# skip-grant-tables # 注釋掉這句話
symbolic-links=0
service mysqld start # 啟動mysql服務
mysql -uroot -p # 輸入新密碼登錄
7.設置mysql開機自啟:
systemctl enable mysqld
總結
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