yum安装mysql(指定版)
2024-08-27 04:51:34
首先需要删除已经存在的mysql,不然后面会报错:
快速删除:
yum remove mysql mysql-server mysql-libs mysql-server
查找残余文件:
rpm -qa | grep -i mysql
将查找出来的文件逐条删除。
查找残余目录:
whereis mysql
删除参与目录。
下载YUM源:
#Red Hat7/CentOS7
http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm #Red Hat6/CentOS6
http://dev.mysql.com/get/mysql57-community-release-el6-9.noarch.rpm #Red Hat5/CentOS5
http://dev.mysql.com/get/mysql57-community-release-el5-7.noarch.rpm
其他系统可以查看官网:https://dev.mysql.com/downloads/repo/yum/
或者直接访问下载网址:https://repo.mysql.com/
安装YUM源:
[root@sql-test-HK ~]# rpm -ivh http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
Retrieving http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
Preparing... ################################# [%]
Updating / installing...
:mysql57-community-release-el7- ################################# [%]
查看是否已经安装成功:
[root@sql-test-HK ~]# yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community/x86_64 MySQL Connectors Community
mysql-tools-community/x86_64 MySQL Tools Community
mysql57-community/x86_64 MySQL 5.7 Community Server
有最后一行就可以了。
使用这种方式进行安装MySQL会默认安装最新版本,此处就是5.7版本。如过你要安装5.6怎么办?
首先查看被禁用的YUM源:
[root@sql-test-HK ~]# yum repolist all | grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community enabled:
mysql-connectors-community-source MySQL Connectors Community - S disabled
mysql-tools-community/x86_64 MySQL Tools Community enabled:
mysql-tools-community-source MySQL Tools Community - Source disabled
mysql-tools-preview/x86_64 MySQL Tools Preview disabled
mysql-tools-preview-source MySQL Tools Preview - Source disabled
mysql55-community/x86_64 MySQL 5.5 Community Server disabled
mysql55-community-source MySQL 5.5 Community Server - S disabled
mysql56-community/x86_64 MySQL 5.6 Community Server disabled
mysql56-community-source MySQL 5.6 Community Server - S disabled
mysql57-community/x86_64 MySQL 5.7 Community Server enabled:
mysql57-community-source MySQL 5.7 Community Server - S disabled
mysql80-community/x86_64 MySQL 8.0 Community Server disabled
mysql80-community-source MySQL 8.0 Community Server - S disabled
我们看到5.6版本是不可用的。
执行如下命令来启动YUM源:
yum install -y yum-utils
yum-config-manager --disable mysql57-community
yum-config-manager --enable mysql56-community
之后就可以看到5.6的源可用了。
[root@sql-test-HK ~]# yum repolist enabled | grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community
mysql-tools-community/x86_64 MySQL Tools Community
mysql56-community/x86_64 MySQL 5.6 Community Server
安装MySQL:
yum install mysql-community-server
启动MySQL:
[root@sql-test-HK ~]# service mysqld start
Redirecting to /bin/systemctl start mysqld.service
[root@sql-test-HK ~]# service mysqld status
Redirecting to /bin/systemctl status mysqld.service
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since Wed -- :: CST; 41s ago
Docs: man:mysqld()
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=/SUCCESS)
Process: ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=/SUCCESS)
Main PID: (mysqld)
CGroup: /system.slice/mysqld.service
└─ /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Jul :: sql-test-HK systemd[]: Starting MySQL Server...
Jul :: sql-test-HK systemd[]: Started MySQL Server.
可以同过如下明明查看MySQL的初始密码:
[root@sql-test-HK ~]# grep 'temporary password' /var/log/mysqld.log
--31T10::.630812Z [Note] A temporary password is generated for root@localhost: Ogue1n7P1?&L
设置密码(在5.6里面貌似没有初始密码,可以直接设置):
mysql_secure_installation
当然我们可以通过初始密码直接在数据库中使用grant来进行设置。
之后就可以进行登陆了:
mysql -uroot -p
需要说明的是,在安装的时候如果出现如下错误:
Error: Package: mysql-community-server-5.7.-.el7.x86_64 (mysql57-community)
Requires: mysql-community-common(x86-) = 5.7.-.el7
Installed: mysql-community-common-8.0.-.el7.x86_64 (@mysql80-community)
mysql-community-common(x86-) = 8.0.-.el7
Available: mysql-community-common-5.7.-.el7.x86_64 (mysql57-community)
mysql-community-common(x86-) = 5.7.-.el7
......
Available: mysql-community-common-5.7.-.el7.x86_64 (mysql57-community)
mysql-community-common(x86-) = 5.7.-.el7
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
那证明你没有严格执行第一步,重新指定前面的操作再次安装就可以了。
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