Linux下安装配置MySQL

系统:Ubuntu 16.04LTS

1\官网下载mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz

2\建立工作组:

$su

#groupadd mysql

#useradd -r -g mysql mysql

3\创建目录

#mkdir /usr/local/mysql

#mkdir /usr/local/mysql/data

4\解压mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz,并拷贝至/usr/local/mysql

#tar -zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz

#cp -r /home/jieyamulu/mysql-5.7.18-linux-glibc2.5-x86_64/* /usr/local/mysql

5\修改mysql用户对mysql以下及其子文件夹以下文件的权限,修改后可使用ll查看权限

root@Ice-***:/usr/local# chown -R mysql:mysql mysql

root@Ice-***:/usr/local# ll

总用量 44

drwxr-xr-x 11 root root 4096 5月 19 07:39 ./

drwxr-xr-x 11 root root 4096 2月 16 04:30 ../

drwxr-xr-x 2 root root 4096 2月 16 04:19 bin/

drwxr-xr-x 2 root root 4096 2月 16 04:19 etc/

drwxr-xr-x 2 root root 4096 2月 16 04:19 games/

drwxr-xr-x 2 root root 4096 2月 16 04:19 include/

drwxr-xr-x 4 root root 4096 2月 16 04:23 lib/

lrwxrwxrwx 1 root root 9 3月 29 14:11 man -> share/man/

drwxr-xr-x 10 mysql mysql 4096 5月 19 07:48 mysql/

drwxr-xr-x 2 root root 4096 2月 16 04:19 sbin/

drwxr-xr-x 8 root root 4096 2月 16 04:34 share/

drwxr-xr-x 2 root root 4096 2月 16 04:19 src/

root@Ice-***:/usr/local# cd mysql/

root@Ice-***:/usr/local/mysql# ll

总用量 64

drwxr-xr-x 10 mysql mysql 4096 5月 19 07:48 ./

drwxr-xr-x 11 root root 4096 5月 19 07:39 ../

drwxr-xr-x 2 mysql mysql 4096 5月 19 07:48 bin/

-rw-r--r-- 1 mysql mysql 17987 5月 19 07:48 COPYING

drwxr-xr-x 2 mysql mysql 4096 5月 19 07:41 data/

drwxr-xr-x 2 mysql mysql 4096 5月 19 07:48 docs/

drwxr-xr-x 3 mysql mysql 4096 5月 19 07:48 include/

drwxr-xr-x 5 mysql mysql 4096 5月 19 07:48 lib/

drwxr-xr-x 4 mysql mysql 4096 5月 19 07:48 man/

-rw-r--r-- 1 mysql mysql 2478 5月 19 07:48 README

drwxr-xr-x 28 mysql mysql 4096 5月 19 07:48 share/

drwxr-xr-x 2 mysql mysql 4096 5月 19 07:48 support-files/

6\修改(或新建)/etc/my.cnf 配置文件

root@Ice-***:/usr/local/mysql# vim /etc/my.cnf

[mysqld] basedir=/usr/local/mysql/

datadir=/usr/local/mysql/data

:wq

7\最关键的初始化

# cd /usr/local/mysql/

root@Ice-***:/usr/local/mysql# ./bin/mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --initialize

2017-05-19T00:15:46.529420Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).

2017-05-19T00:15:47.066125Z 0 [Warning] InnoDB: New log files created, LSN=45790

2017-05-19T00:15:47.213711Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.

2017-05-19T00:15:47.286951Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 4e958344-3c28-11e7-8334-c8d3ffd2db82.

2017-05-19T00:15:47.292857Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.

2017-05-19T00:15:47.294758Z 1 [Note] A temporary password is generated for root@localhost: YjaotQk*2ew4

初始密码要记住

这里可能会出现很多问题,比如:

Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

缺少依赖关系包

解决方法:sudo apt-get install libaio-dev

还有可能是之前步骤不对导致了操作data文件的权限不够等等.按照步骤来,缺少什么装什么(有提示),到了这里应该就初始化成功了,那几个Warning,值得注意的是Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.有时间可以查下是怎么回事,这条忽略也没影响.

8\不要着急启动,现在还启动不了.执行代码,将mysql下除了data文件夹外的文件变为root权限

root@Ice-***:/usr/local/mysql# chown -R root .

root@Ice-***:/usr/local/mysql# chown -R mysql data

9\启动

root@Ice-***:/usr/local/mysql# bin/mysqld_safe --user=mysql &

敲回车

root@Ice-***:/usr/local/mysql# /usr/local/mysql/bin/mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 3

Server version: 5.7.18

Copyright (c) 2000, 2017, 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> show databases;

ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

mysql>

10\重置密码

mysql> SET PASSWORD = PASSWORD('newpasswd');

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| sys |

+--------------------+

4 rows in set (0.00 sec)

mysql> quit

Bye

11\设置开机启动

root@Ice-***:/usr/local/mysql# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

root@Ice-***:/usr/local/mysql# chmod 755 /etc/init.d/mysqld

12\安装mysql-server 和 mysql-client

root@Ice-***:~# apt-get install mysql-server

root@Ice-***:~# apt-get install mysql-client

root@Ice-***:~# apt-get install libmysqlclient-dev

E: Sub-process /usr/bin/dpkg returned an error code (1)

解决办法:

1.$ sudo mv /var/lib/dpkg/info /var/lib/dpkg/info_old //现将info文件夹更名 

2.$ sudo mkdir /var/lib/dpkg/info //再新建一个新的info文件夹 

3.$ sudo apt-get update,  

   $ apt-get -f install //修复依赖树

4.$ sudo mv /var/lib/dpkg/info/* /var/lib/dpkg/info_old //执行完上一步操作后会在新的info文件夹下生成一些文件,现将这些文件全部移到info_old文件夹下 

5.$ sudo rm -rf /var/lib/dpkg/info //把自己新建的info文件夹删掉 

6.$ sudo mv /var/lib/dpkg/info_old /var/lib/dpkg/info //把以前的info文件夹重新改回名字

最后,如果是Ubuntu系统可能无法向表中插入汉字,无法从表中查询汉字..

解决办法:

关闭数据库服务

service mysql stop

~$ sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf

在[mysqld]下添加一行character_set_server=utf8

配置文件选段:

[mysqld]

#

# * Basic Settings

#

user = mysql

pid-file = /var/run/mysqld/mysqld.pid

socket = /var/run/mysqld/mysqld.sock

port = 3306

basedir = /usr

datadir = /var/lib/mysql

tmpdir = /tmp

lc-messages-dir = /usr/share/mysql

character_set_server=utf8 就是这一行,原来是没有的,要手动添加!

skip-external-locking

#


将上述文件拷贝至/etc/mysql/my.cnf

~$ sudo cp /etc/mysql/mysql.conf.d/mysqld.cnf /etc/mysql/my.cnf

重启数据库服务

~$ /etc/init.d/mysql restart

如果查看字符集能得到如下结果就说明成功了.

mysql> show variables like 'collation_%';

+----------------------+-----------------+

| Variable_name | Value |

+----------------------+-----------------+

| collation_connection | utf8_general_ci |

| collation_database | utf8_general_ci |

| collation_server | utf8_general_ci |

+----------------------+-----------------+

3 rows in set (0.00 sec)

mysql> show variables like 'character_set_%';

+--------------------------+----------------------------+

| Variable_name | Value |

+--------------------------+----------------------------+

| character_set_client | utf8 |

| character_set_connection | utf8 |

| character_set_database | utf8 |

| character_set_filesystem | binary |

| character_set_results | utf8 |

| character_set_server | utf8 |

| character_set_system | utf8 |

| character_sets_dir | /usr/share/mysql/charsets/ |

+--------------------------+----------------------------+

8 rows in set (0.01 sec)

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