确认对应的版本:
cat /proc/version
uname -a
lsb_release -a
cat /etc/redhat-release
cat /etc/issue
这个是内核的版本:
3.10.0-1062.9.1.el7.x86_64
选择操作系统版本:
2.解压的tar格式文件
tar -xvf mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar
运行上述命令,得到如下结果,有8个文件包:
也可以创建一个文件夹,在同一个子目录下解压。
3.安装解压的rpm安装包
然后我们可以用rpm -ivh命令来进行安装,注意安装顺序,因为这些包的安装是相互依赖的:必须安装(注意顺序)
rpm -ivh mysql-community-common-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.20-1.el7.x86_64.rpm
非必要安装(注意顺序)
rpm -ivh mysql-community-libs-compat-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-embedded-compat-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-devel-8.0.20-1.el7.x86_64.rpm
rpm -ivh mysql-community-test-8.0.20-1.el7.x86_64.rpm安装过程中可能会报以下错误:
出现问题:error:
Failed dependencies:
libnuma.so.1()(64bit) is needed by mysql-community-server-8.0.13-1.el7.x86_64 libnuma.so.1(libnuma_1.1)(64bit) is needed by mysql-community-server-8.0.13-1.el7.x86_64 libnuma.so.1(libnuma_1.2)(64bit) is needed by mysql-community-server-8.0.13-1.el7.x86_64
解决办法:
yum install numactl
出现问题:error:
Failed dependencies:pkgconfig(openssl) is needed by mysql-community-devel-8.0.13-1.el7.x86_64
解决办法:
yum install openssl-devel.x86_64 openssl.x86_64 -y
出现问题:error:
Failed dependencies:perl(Data::Dumper) is needed by mysql-community-test-8.0.13-1.el7.x86_64
解决办法:
yum -y install autoconf
出现问题:error:
Failed dependencies:perl(JSON) is needed by mysql-community-test-8.0.13-1.el7.x86_64
解决办法:
yum install perl.x86_64 perl-devel.x86_64 -y
yum install perl-JSON.noarch -y
出现问题:error:
error: Failed dependencies:libaio.so.1()(64bit) is needed by MySQL-server-5.5.25a-1.rhel5.x86_64libaio.so.1(LIBAIO_0.1)(64bit) is needed by MySQL-server-5.5.25a-1.rhel5.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by MySQL-server-5.5.25a-1.rhel5.x86_64
解决办法:
yum install libaio
以上我们的MySQL就安装好了,下面可以直接使用了。
4.使用数据库
- 初始化数据库
mysqld –initialize –console目录授权,不授权的话MySQL没有写入权限,会启动失败
所以在初始化之前,记得授权,命令为:chown -R mysql:mysql /var/lib/mysql/启动msyql服务
命令:systemctl start mysqld停止MySQL命令:
service mysqld stop查看msyql服务的状态
service mysqld status
当看到Active后面是active(runing)说明启动成功了
4.修改数据库密码
当我们输入mysql -u root -p需要输入密码,我们可以去mysqld.log里面查看一下临时密码:
cat /var/log/mysqld.log
- 下面我们就可以使用你的临时密码登录数据库
画线的部分就是安装好生成的初始密码
mysql -u root -p+回车
输入临时密码
修改命令:alter USER ‘root’@’localhost’ IDENTIFIED BY ‘新密码(必须包含:数字大小写字母特殊字符,长度最小为8位)’;
后面一定要加分号,不然无效
然后ctrl+d退出,重新进入就可以了,
输入命令
show databases;
use mysql;
正常就可以了