linux上安装MySQL
2019-11-11 16:01:32来源:博客园 阅读 ()
linux上安装MySQL
Posted on 2019-11-11 21:25 反射弧 阅读(...) 评论(...) 编辑 收藏环境:centos7 mysql8.0.18
一、下载mysql服务软件包
地址:https://dev.mysql.com/downloads/mysql/
rpm package:是某个特定的包,比如server,client,devle等
rpm bundle:是该版本所有包的集合
Compressed TAR Archive,是源码,必须用源码方式安装
Compatibility Libraries:兼容库
Shared Libraries:共享库
Development Libraries:开发库
Test Suite:测试套件
Client Utilities:客户端工具
下载时注意选则好对应的版本
二、安装
(1)rpm -ivh mysql-community-libs-8.0.18-1.el7.x86_64
报错信息:
error: Failed dependencies:
mariadb-libs is obsoleted by mysql-community-libs-8.0.18-1.el7.x86_64
原因:mariadb-libs和 mysql-community-libs冲突
解决办法:卸载mariadb-libs
a.查询mariadb-libs的包名
[root@izm5e8nyz28va3a786y465z src]# rpm -qa |grep mariadb
mariadb-libs-5.5.64-1.el7.x86_64
b.卸载该包
[root@izm5e8nyz28va3a786y465z src]# rpm -ev mariadb-libs-5.5.64-1.el7.x86_64
error: Failed dependencies:
libmysqlclient.so.18()(64bit) is needed by (installed) postfix-2:2.10.1-7.el7.x86_64
libmysqlclient.so.18(libmysqlclient_18)(64bit) is needed by (installed) postfix-2:2.10.1-7.el7.x86_64
报错原因:postfix是mariadb 的依赖包,要先卸载它
[root@izm5e8nyz28va3a786y465z src]# rpm -qa |grep postfix
postfix-2.10.1-7.el7.x86_64
[root@izm5e8nyz28va3a786y465z src]# rpm -ev postfix-2.10.1-7.el7.x86_64
error: Failed dependencies:
/usr/sbin/sendmail is needed by (installed) redhat-lsb-core-4.1-27.el7.centos.1.x86_64
[root@izm5e8nyz28va3a786y465z src]# rpm -qa |grep redhat-lsb
redhat-lsb-core-4.1-27.el7.centos.1.x86_64
redhat-lsb-submod-security-4.1-27.el7.centos.1.x86_64
[root@izm5e8nyz28va3a786y465z src]# rpm -ev redhat-lsb-core-4.1-27.el7.centos.1.x86_64
Preparing packages...
redhat-lsb-core-4.1-27.el7.centos.1.x86_64
[root@izm5e8nyz28va3a786y465z src]# rpm -ev postfix-2.10.1-7.el7.x86_64
Preparing packages...
postfix-2:2.10.1-7.el7.x86_64
上述步骤成功卸载掉mariadb-libs的依赖
[root@izm5e8nyz28va3a786y465z src]# rpm -ev mariadb-libs-5.5.64-1.el7.x86_64
Preparing packages...
mariadb-libs-1:5.5.64-1.el7.x86_64
继续安装:
[root@izm5e8nyz28va3a786y465z src]# rpm -ivh mysql-community-libs-8.0.18-1.el7.x86_64.rpm
warning: mysql-community-libs-8.0.18-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-libs-8.0.18-1.el7################################# [100%]
mysql-community-libs-8.0.18-1.el7包安装成功
(2) rpm -ivh mysql-community-common-8.0.18-1.el7.x86_64.rpm
(3) rpm -ivh mysql-community-client-8.0.18-1.el7.x86_64.rpm
(4) rpm -ivh mysql-community-server-8.0.18-1.el7.x86_64.rpm
error: Failed dependencies:
libaio.so.1()(64bit) is needed by mysql-community-server-8.0.18-1.el7.x86_64
libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-8.0.18-1.el7.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by mysql-community-server-8.0.18-1.el7.x86_64
解决依赖关系:
[root@izm5e8nyz28va3a786y465z src]# yum list |grep libaio
libaio.i686 0.3.109-13.el7 base
libaio.x86_64 0.3.109-13.el7 base
libaio-devel.i686 0.3.109-13.el7 base
libaio-devel.x86_64 0.3.109-13.el7 base
查询到4个相关的依赖包,只需安装libaio.x86_64 libaio-devel.x86_64
yum -y install libaio.x86_64 libaio-devel.x86_64
[root@izm5e8nyz28va3a786y465z src]# rpm -ivh mysql-community-server-8.0.18-1.el7.x86_64.rpm
warning: mysql-community-server-8.0.18-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-server-8.0.18-1.e################################# [100%]
(5)rpm -ivh mysql-community-devel-8.0.18-1.el7.x86_64.rpm
error: Failed dependencies:
pkgconfig(openssl) is needed by mysql-community-devel-8.0.18-1.el7.x86_64
解决依赖关系:
yum -y install openssl openssl-devel
[root@izm5e8nyz28va3a786y465z src]# rpm -ivh mysql-community-devel-8.0.18-1.el7.x86_64.rpm
warning: mysql-community-devel-8.0.18-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-devel-8.0.18-1.el################################# [100%]
至此Mysql安装成功
小结:1. 卸载掉冲突组件 mariadb
rpm -ev redhat-lsb-core-4.1-27.el7.centos.1.x86_64 postfix-2.10.1-7.el7.x86_64 mariadb-libs-5.5.64-1.el7.x86_64
2.安装相关依赖:
yum -y install openssl openssl-devel libaio libaio-devel
三、mysql服务设置
1.启动mysql服务:systemctl start mysqld.service
查看MySQL服务是否启动:netstat -tunpl |grep mysqld
2.登录MySQL修改密码
(1)登录mysql
2种方法:跳过密码验证登录 或 查看初始密码登录
a.查看初始密码登录
cat /var/log/mysqld.log
... 2019-11-11T14:28:57.523108Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: ,2sg6>HrQdF!
标红加粗部分为初始密码 mysql -uroot -p 键入密码可以登录MySQL
b.跳过密码验证登录
修改my.cnf文件,在[mysqld]区域下加入skip-grant-tables 重启MySQL
[root@izm5e8nyz28va3a786y465z ~]# find / -name my.cnf
/etc/my.cnf
[root@izm5e8nyz28va3a786y465z ~]# vim /etc/my.cnf
[root@izm5e8nyz28va3a786y465z run]# systemctl restart mysqld.service
[root@izm5e8nyz28va3a786y465z run]# mysql #可直接登录MySQL
注意:修改密码后,将my.cnf文件内容还原
(2)修改密码
原文链接:https://www.cnblogs.com/fanshehu/p/11838596.html
如有疑问请与原作者联系
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