centos6.5如何升级mysql(最小安装的情况下)

 

  • 1、删除已经安装的mysql(已经确定安装过了,不确定就输入yum list installed | grep mysql看看)
    yum remove  mysql mysql-server mysql-libs mysql-server;`
    yum -y remove mysql-libs.x86_64`

find / -name mysql 将找到的相关东西全删掉,尤其是后缀为sock的文件所在的文件夹,不然安装新版本后可能不能重启

  • 2、更新yum源 (这时候要是报错:You need to install yum-utils to use yum-config-manager,就得先安装yum-utils
    wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
    yum localinstall mysql-community-release-el6-5.noarch.rpm
    yum repolist all | grep mysql

然后发现yum repolist all | grep mysql后没有内容,说明其实yum是没有更新的,那就只能手动添加源了,过程如下:

    rpm -Uvh mysql57-community-release-el6-n.noarch.rpm  //1、更新rpm源

找到/etc/yum.repos.d/mysql-community.repo文件 (要是文件夹和文件都不存在,就自己建立) 写入:

    [mysql57-community]
    name=MySQL 5.7 Community Server
    baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql                                                     
源更新完成
  • 3、把可用源不要的关掉,要用的打开,再查看可用源,就是mysql5.7了(手动添加的源就跳过吧。。)
    yum-config-manager --disable mysql55-community
    yum-config-manager --disable mysql56-community
    yum-config-manager --enable mysql57-community-dmr
    yum repolist enabled | grep mysql
  • 4、安装mysql

yum install mysql-community-server

如果是最小安装情况下,这时候很可能在下载后需要按下Y/N后报错:epel-release is not installed

那就要安装epel-release:yum install epel-release

然后报错有可能就变成:[Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

这种情况下,找到/etc/yum.repos.d/epel.repo文件夹,写入:

```
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
enabled=1
gpgcheck=0      //这里是重点,必须调整成0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
```

然后再yum install mysql-community-server就可以成功了

  • 5、如果需要就调整/etc/my.cnf里配置
  • 6、启动服务service mysqld start
  • 7、 查看mysql是否自启动,并且设置开启自启动
    chkconfig --list | grep mysqld
    chkconfig mysqld on
  • 8、mysql安全设置 mysql_secure_installation
posted @ 2016-07-04 23:21  fengyujia  阅读(299)  评论(0编辑  收藏  举报