mysql主从之Mysql_mysql基本安装

下载安装包：

https://dev.mysql.com/downloads/mysql/5.7.html#downloads

[root@jenkins-master ~]# cd /usr/local/src/

[root@jenkins-master src]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar

查看旧版本mysql

 [root@jenkins-master src]# rpm -ivh *.rpm

error: Failed dependencies:
    mariadb-libs is obsoleted by mysql-community-libs-5.7.26-1.el7.x86_64
    mariadb-libs is obsoleted by mysql-community-libs-compat-5.7.26-1.el7.x86_64
    perl(JSON) is needed by mysql-community-test-5.7.26-1.el7.x86_64

[root@localhost src]# yum list mariadb-lib*

[root@localhost src]# yum remove mariadb-lib*

[root@localhost src]# yum -y install net-tools libaio

数据库的初始化

[root@localhost src]# yum -y install perl-Module-Install

必须安装的包：common，server，libs，client

[root@jenkins-master src]# tar -xvf mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar 

[root@localhost src]# ll

根据提示安装

[root@localhost src]# rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm 
warning: mysql-community-client-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
    mysql-community-libs(x86-64) >= 5.7.9 is needed by mysql-community-client-5.7.26-1.el7.x86_64
[root@localhost src]# rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm 
warning: mysql-community-libs-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
    mysql-community-common(x86-64) >= 5.7.9 is needed by mysql-community-libs-5.7.26-1.el7.x86_64
[root@localhost src]# rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm
warning: mysql-community-common-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-common-5.7.26-1.e################################# [100%]
[root@localhost src]# rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm 
warning: mysql-community-client-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
    mysql-community-libs(x86-64) >= 5.7.9 is needed by mysql-community-client-5.7.26-1.el7.x86_64
[root@localhost src]# rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm 
warning: mysql-community-libs-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-libs-5.7.26-1.el7################################# [100%]
[root@localhost src]# rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm 
warning: mysql-community-client-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-client-5.7.26-1.e################################# [100%]
[root@localhost src]# mysql --version
mysql  Ver 14.14 Distrib 5.7.26, for Linux (x86_64) using  EditLine wrapper  #版本是5.7.26

 安装其他两个包，按顺序装，否则可能报错，如果有报错，按照提示

[root@localhost src]# rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm

[root@localhost src]# rpm -ivh mysql-community-devel-5.7.26-1.el7.x86_64.rpm 

安装完成

默认的数据目录在/var/lib/mysql

[root@localhost src]# ll -d /var/lib/mysql
drwxr-x--x. 2 mysql mysql 6 Apr 13 10:40 /var/lib/mysq