1.下载mysql源安装包
http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
2.安装mysql源
$ yum localinstall mysql57-community-release-el7-8.noarch.rpm
3.检查mysql源是否安装成功
$ yum repolist enabled | grep "mysql.*-community.*"
4.修改yum源 【可跳过】
$ vim /etc/yum.repos.d/mysql-community.repo
改变默认安装的mysql版本。比如要安装5.6版本,将5.7源的enabled=1改成enabled=0。然后再将5.6源的enabled=0改成enabled=1即可。
备注:enabled=1表示即将要安装的mysql版本,这个文件也可以不修改,默认安装mysql最高版本
5.安装MySQL
这一步才是真正安装mysql
$ yum install mysql-community-server
6.启动MySQL服务并设置开机启动
$ systemctl start mysqld
$ systemctl enable mysqld
$ systemctl daemon-reload
7.端口开放
$ firewall-cmd --zone=public --add-port=3306/tcp --permanent
8.修改root本地登录密码
1)查看mysql密码
$ grep 'temporary password' /var/log/mysqld.log
2)连接mysql
$ mysql -uroot -p
3)修改密码【 注意:后面的分号一定要跟上】
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
或者:
mysql> set password for 'root'@'localhost'=password('MyNewPass4!');
mysql> show variables like '%password%';
9.添加远程登录用户
mysql> GRANT ALL PRIVILEGES ON *.* TO 'caoxiaobo'@'%' IDENTIFIED BY 'Caoxiaobo0917!' WITH GRANT OPTION;
10.使用客户端连接测试
备注:这里的用户名是第9步设置的caoxiaobo,密码为:Caoxiaobo0917!
如果遇到
Error: Package: mysql-community-server-5.6.42-2.el7.x86_64 (mysql56-community)
Requires: libstdc++.so.6(GLIBCXX_3.4.15)(64bit)
Error: Package: mysql-community-server-5.6.42-2.el7.x86_64 (mysql56-community)
Requires: libc.so.6(GLIBC_2.17)(64bit)
Error: Package: mysql-community-server-5.6.42-2.el7.x86_64 (mysql56-community)
Requires: systemd
Error: Package: mysql-community-libs-5.6.42-2.el7.x86_64 (mysql56-community)
Requires: libc.so.6(GLIBC_2.17)(64bit)
Error: Package: mysql-community-client-5.6.42-2.el7.x86_64 (mysql56-community)
Requires: libc.so.6(GLIBC_2.17)(64bit)
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
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原文链接:
这种错误
解决办法:转载:在centos6中用yum安装mysql失败解决办法
1)进到/etc/yum.repos.d目录编辑mysql-community.repo 文件,将enabled设置为0,如下面。
# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
[test@alps yum.repos.d]$ sudo vi mysql-community.repo
2)保存重新安装即可。
[test@alps yum.repos.d]$ sudo yum install mysql-server
修改密码
mysqladmin -u root password 123456
修改数据库密码强度
set global validate_password_policy=LOW;
修改数据库密码长度
set global validate_password_length=1;