Linux安装mysql(mysql-5.7.23-1.el7.x86_64.rpm-bundle.tar)(万能解决登录问题,最详细教程)
1.下载mysql
官网地址:https://dev.mysql.com/downloads/mysql/5.7.html#downloads
注意事项:
(1)下载的安装包必须是.rpm-bundle.tar结尾的
(2)安装的时候,对应自己的下载版本号,不要直接复制命令
2.下载完成后,通过ftp上传到Linux服务器上
(1)创建mysql5.7.23目录
[root@VM_0_16_centos ~]# mkdir mysql5.7.23
mysql5.7.23
(2)将下载好的安装上传到该目录下
[root@VM_0_16_centos ~]# cd mysql5.7.23
[root@VM_0_16_centos mysql5.7.23]# ls
mysql-5.7.23-1.el7.x86_64.rpm-bundle.tar
3.解压安装包(mysql-5.7.23-1.el7.x86_64.rpm-bundle.tar)
[root@VM_0_16_centos mysql5.7.23]# tar xvf mysql-5.7.23-1.el7.x86_64.rpm-bundle.tar
mysql-community-common-5.7.23-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.23-1.el7.x86_64.rpm
mysql-community-minimal-debuginfo-5.7.23-1.el7.x86_64.rpm
mysql-community-server-5.7.23-1.el7.x86_64.rpm
mysql-community-devel-5.7.23-1.el7.x86_64.rpm
mysql-community-libs-5.7.23-1.el7.x86_64.rpm
mysql-community-client-5.7.23-1.el7.x86_64.rpm
mysql-community-server-minimal-5.7.23-1.el7.x86_64.rpm
mysql-community-test-5.7.23-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.23-1.el7.x86_64.rpm
mysql-community-embedded-5.7.23-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.23-1.el7.x86_64.rpm
[root@VM_0_16_centos mysql5.7.23]#
4.卸载掉centos7自带的mariadb-lib
方法一:
(1)查询mariadb信息
[root@VM_0_16_centos mysql5.7.23]# rpm -qa|grep mariadb
mariadb-libs-5.5.56-2.el7.x86_64
(2)使用rpe -e命令卸载
[root@VM_0_16_centos mysql5.7.23]# rpm -e mariadb-libs-5.5.56-2.el7.x86_64 --nodeps
此方法卸载失败或者报错,请使用方法二
方法二:
使用yum remove 命名进行删除
[root@VM_0_16_centos mysql5.7.23]# yum remove mysql-libs
------------------------------------------------------------------------------------------------------------------------
已加载插件:fastestmirror, langpacks
正在解决依赖关系
--> 正在检查事务
---> 软件包 mariadb-libs.x86_64.1.5.5.44-2.el7.centos 将被 删除
--> 正在处理依赖关系 libmysqlclient.so.18()(64bit),它被软件包 2:postfix-2.10.1-6.el7.x86_64 需要
--> 正在处理依赖关系 libmysqlclient.so.18(libmysqlclient_18)(64bit),它被软件包 2:postfix-2.10.1-6.el7.x86_64 需要
--> 正在检查事务
---> 软件包 postfix.x86_64.2.2.10.1-6.el7 将被 删除
--> 解决依赖关系完成
base/7/x86_64 | 3.6 kB 00:00:00
extras/7/x86_64 | 3.4 kB 00:00:00
updates/7/x86_64 | 3.4 kB 00:00:00
依赖关系解决
=======================================================================================================================================Package 架构 版本 源 大小
=======================================================================================================================================
正在删除:mariadb-libs x86_64 1:5.5.44-2.el7.centos @anaconda 4.4 M
为依赖而移除:postfix x86_64 2:2.10.1-6.el7 @anaconda 12 M
事务概要
=======================================================================================================================================
移除 1 软件包 (+1 依赖软件包)
安装大小:17 M
是否继续?[y/N]:y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
警告:RPM 数据库已被非 yum 程序修改。
** 发现 4 个已存在的 RPM 数据库问题, 'yum check' 输出如下:
icedtea-web-1.6.1-4.el7.x86_64 有缺少的需求 java-1.8.0-openjdk
jline-1.0-8.el7.noarch 有缺少的需求 java >= ('0', '1.5', None)
1:libreoffice-core-4.3.7.2-5.el7.x86_64 有缺少的需求 java-headless >= ('1', '1.6', None)
1:libreoffice-ure-4.3.7.2-5.el7.x86_64 有缺少的需求 libjvm.so()(64bit)正在删除 : 2:postfix-2.10.1-6.el7.x86_64 1/2正在删除 : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 2/2验证中 : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 1/2验证中 : 2:postfix-2.10.1-6.el7.x86_64 2/2
删除:mariadb-libs.x86_64 1:5.5.44-2.el7.centos
作为依赖被删除:postfix.x86_64 2:2.10.1-6.el7
完毕!
5.安装mysql-server服务,只需要安装如下4个软件包即可,使用rpm -ivh进行安装(按顺序安装,后面的服务依赖前面的服务)
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-common-5.7.23-1.el7.x86_64.rpm
警告:mysql-community-common-5.7.23-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...1:mysql-community-common-5.7.23-1.e################################# [100%]
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-libs-5.7.23-1.el7.x86_64.rpm
警告:mysql-community-libs-5.7.23-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...1:mysql-community-libs-5.7.23-1.el7################################# [100%]
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-client-5.7.23-1.el7.x86_64.rpm
警告:mysql-community-client-5.7.23-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...1:mysql-community-client-5.7.23-1.e################################# [100%]
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-server-5.7.23-1.el7.x86_64.rpm
警告:mysql-community-server-5.7.23-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...1:mysql-community-server-5.7.23-1.e################################# [100%]
6.安装过程中可能出现的问题
1).缺少libaio
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-server-5.7.17-1.el7.x86_64.rpm
警告:mysql-community-server-5.7.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
错误:依赖检测失败:libaio.so.1()(64bit) 被 mysql-community-server-5.7.17-1.el7.x86_64 需要libaio.so.1(LIBAIO_0.1)(64bit) 被 mysql-community-server-5.7.17-1.el7.x86_64 需要libaio.so.1(LIBAIO_0.4)(64bit) 被 mysql-community-server-5.7.17-1.el7.x86_64 需要net-tools 被 mysql-community-server-5.7.17-1.el7.x86_64 需要
解决办法:
[root@VM_0_16_centos mysql5.7.23]# yum install libaio
2)缺少net-tools
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-server-5.7.17-1.el7.x86_64.rpm
警告:mysql-community-server-5.7.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
错误:依赖检测失败:net-tools 被 mysql-community-server-5.7.17-1.el7.x86_64 需要
解决办法:yum install net-tools
3)缺少numactl
[root@VM_0_16_centos mysql5.7.23]# rpm -ivh mysql-community-server-5.7.17-1.el7.x86_64.rpm 报错:warning: mysql-community-server-5.7.9-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:libnuma.so.1()(64bit) is needed by mysql-community-server-5.7.9-1.el6.x86_64libnuma.so.1(libnuma_1.1)(64bit) is needed by mysql-community-server-5.7.9-1.el6.x86_64libnuma.so.1(libnuma_1.2)(64bit) is needed by mysql-community-server-5.7.9-1.el6.x86_64解决办法:yum install numactl
7.初始化数据库
[root@VM_0_16_centos mysql5.7.23]# mysqld --initialize #初始化后会在/var/log/mysqld.log生成随机密码
8.修改mysql数据库目录的所属用户及其所属组,然后启动mysql数据库
[root@VM_0_16_centos mysql5.7.23]# chown mysql:mysql /var/lib/mysql -R
[root@VM_0_16_centos mysql5.7.23]# systemctl start mysqld.service
[root@VM_0_16_centos mysql5.7.23]# systemctl status mysqld.service
● mysqld.service - MySQL ServerLoaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)Active: active (running) since 一 2018-08-06 20:41:25 CST; 6s agoDocs: man:mysqld(8)http://dev.mysql.com/doc/refman/en/using-systemd.htmlProcess: 13031 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)Process: 13003 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)Main PID: 13034 (mysqld)Tasks: 27CGroup: /system.slice/mysqld.service└─13034 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid8月 06 20:41:22 eric111 systemd[1]: Starting MySQL Server...
8月 06 20:41:25 eric111 systemd[1]: Started MySQL Server.
9.登录mysql,并修改root用户的密码(系统强制要求,否则不能操作mysql)
初始登录密码可在/var/log/mysqld.log文件中找到
[root@VM_0_16_centos mysql5.7.23]# mysql -uroot -p'-4iq<tyjVpLb'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.23Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> set password=password('123456');
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
10.开启无密码登录模式
(1)mysql的配置文件在etc目录下,默认是my.cnf
[root@localhost /]# cd etc
[root@localhost etc]# find my.cnf
my.cnf
[root@localhost etc]# ls
abrt crontab gcrypt kernel mtab printcap scl system-release
adjtime cron.weekly gdbinit krb5.conf my.cnf profile securetty system-release-cpe
aliases crypttab gdbinit.d ld.so.cache my.cnf.d profile.d security tcsd.conf[root@localhost etc]#
(2)编辑my.cnf文件,加入skip-grant-tables配置,开启无密码登录
打开my.cnf文件,输入如下命令,按回车
[root@localhost etc]# vim /etc/my.cnf
按insert键切换编辑模式,增加skip-grant-tables配置
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html[mysqld]
skip-grant-tables......省略......
(3)保存并退出,然后重启mysql服务
按esc键后,输入:wq 按回车键,保存退出,或者输入:wq! 按回车键,强制保存并退出
重启mysql服务
[root@localhost etc]# systemctl restart mysqld.service
[root@localhost etc]#
(4)登录mysql
[root@localhost etc]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.30 MySQL Community Server (GPL)Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql>
11.修改登录密码
(1)使用mysql数据库
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -ADatabase changed
mysql>
(2)查看mysql当前用户信息
host字段是允许连接mysql服务的客户端主机,%代表所有客户端主机,localhost代表只能在当前主机访问,及本地访问
user字段是登录mysql的用户名称,当前默认有root、mysql.sys、mysql.session三个用户
authentication_string字段是登录mysql的用户密码,加密后的密码,该字段是mysql5.7版本开始使用,之前版本字段为password
mysql> select host,user,authentication_string from user;
+-----------+---------------+-------------------------------------------+
| host | user | authentication_string |
+-----------+---------------+-------------------------------------------+
| % | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| localhost | mysql.session | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| localhost | mysql.sys | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
+-----------+---------------+-------------------------------------------+
3 rows in set (0.00 sec)mysql>
(3)修改root用户的密码为123456,以及客户端主机访问限制,允许所有主机访问,修改完成,使用flush privileges;刷新权限
mysql> update user set host='%',authentication_string=password('123456') where user='root';
Query OK, 0 rows affected, 1 warning (0.02 sec)
Rows matched: 1 Changed: 0 Warnings: 1mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)mysql>
(4)修改密码中,可能出现的错误解决
错误信息:
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
解决方案:
alter user 'root'@'%' identified by '123456';
12.修改访问权限
目的:任何主机通过用户root和密码123456连接到mysql服务器,并授权所有权限
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
13.取消无密码登录模式
(1)注释或者删除/etc/my.cnf文件中的skip-grant-tables配置
(2)重启mysql服务(systemctl restart mysqld.service)
到此,在Linux中,安装mysql的教程结束,如有不会,请@我
参考原文:
https://blog.csdn.net/tanjun592/article/details/71797972?locationNum=9&fps=1
https://blog.csdn.net/smiles13/article/details/81460617
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