1.查找卸载原有的mysql
方法1
rpm -qa|grep mysql
rpm -e 文件名
方法2
yum list installed mysql*
yum remove mysql mysql-devel mysql-server mysql-libs compat-mysql51
方法3
find / -name mysql
然后rm -rf 文件
2.下载安装包
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz
(若报-bash: wget: command not found,则表明没有安装wget,需要安装,安装命令如下:yum -y install wget)
3.解压安装包并修改文件名
tar -zxvf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz -C /data/my/
mv mysql-5.7.17-linux-glibc2.5-x86_64/ mysql5.7
创建数据,日志文件夹
mkdir /data/my/mysql5.7/data
mkdir /data/my/mysql5.7/logs
4.配置
用附件中的my.cnf覆盖/etc/my.cnf
用附件中的mysqld_safe覆盖/data/my/mysql5.7/bin/mysqld_safe
将附件中的mysqld复制到/etc/init.d/下
5.初始化mysql
cd /data/my/mysql5.7/bin
./mysqld --initialize --user=root --basedir=/data/my/mysql5.7 --datadir=/data/my/mysql5.7/data
初始化中如出现 error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
//安装后再初始化就OK了
yum install -y libaio
6.启动mysql
./mysqld_safe --user=root &
初始化后会生成一个临时密码 root@localhost::*******,在my.cnf里面配置的日志文件中可查看
然后检查mysql是否启动
ps -ef|grep mysql
注意可能会遇到:does not exist or is not executable. Please cd to the mysql installation
directory and restart this script from there as follows:
./bin/mysqld_safe&
See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information
在MySQL 5.7中,安全性提升,要求 切换到软件安装目录,来启动数据库
[root@localhost ~]# cd /mysql_software_57/
[root@localhost mysql_software_57]# bin/mysqld_safe --defaults-file=/etc/my.cnf &
[1] 25341
7.修改密码并设置远程可连接
进入客户端
./mysql -uroot -p
Enter password:输入临时密码
修改密码
mysql> set password=password('newpassword');
将root用户的主机改为%
mysql>use mysql;
mysql>select host, user from user;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;
设置远程访问账号:grant all privileges on . to 远程访问用户名@’%’ identified by ‘用户密码’;
mysql> grant all privileges on *.* to root@'%' identified by 'newpassword';
刷新:
mysql> flush privileges;
退出mysql
mysql> exit;
// Linux关闭MySQL的命令
$mysql_dir/bin/mysqladmin -uroot -p shutdown
8.设置开机自启动
先赋权
chmod 777 /etc/init.d/mysqld
chmod -R 777 /data/my/mysql5.7
添加服务mysql
chkconfig --add mysqld
设置服务为自启动
chkconfig mysqld on
最后重启服务器试试效果
reboot
参考:https://www.cnblogs.com/ivictor/p/6846017.html#conclusion
http://blog.csdn.net/yougoule/article/details/56680952