/wwwRoot/mysql/wwwRoot/mysql官網 https://dev.mysql.com/doc/refman/5.7/en/binary-installation.html
安裝資料
shell> apt-cache search libaio # search for info
shell> apt-get install libaio1 # install library
shell> groupadd mysql
shell> useradd -r -g mysql -s /bin/false mysql
shell> cd /usr/local
shell> tar zxvf /path/to/mysql-VERSION-OS.tar.gz
shell> ln -s full-path-to-mysql-VERSION-OS mysql
shell> cd mysql
shell> mkdir mysql-files
shell> chown mysql:mysql mysql-files
shell> chmod 750 mysql-files
shell> bin/mysqld --initialize --user=mysql
shell> bin/mysql_ssl_rsa_setup
shell> bin/mysqld_safe --user=mysql &
# Next command is optional
shell> cp support-files/mysql.server /etc/init.d/mysql.server
錯誤1：
5.7.20# bin/mysqld --initialize --user=mysql
2017-12-17T01:20:52.448395Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-12-17T01:20:53.007185Z 0 [Warning] InnoDB: New log files created, LSN=45790
2017-12-17T01:20:53.057580Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2017-12-17T01:20:53.122093Z 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: 8637a948-e2c8-11e7-9675-000c2987d513.
2017-12-17T01:20:53.124177Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2017-12-17T01:20:53.124904Z 1 [Note] A temporary password is generated for root@localhost: g9p+HawiV/s#
2017-12-17T01:20:53.127760Z 1 [ERROR] 1 Can't create/write to file '/media/shaoyang/6924c011-8204-42a3-9e3e-db9816f210ba/mysql-5.7.20/data/mysql/db.MYI' (Errcode: 13 - Permission denied)
2017-12-17T01:20:53.127945Z 0 [ERROR] Aborting
2017-12-17T01:20:53.230963Z 0 [ERROR] InnoDB: Cannot open '/media/shaoyang/6924c011-8204-42a3-9e3e-db9816f210ba/mysql-5.7.20/data/ib_buffer_pool.incomplete' for writing: Permission denied
是因為沒有配置文件 （添加配置 文件即可）
mkdir /wwwRoot/mysql
chowm -R mysql:mysql /wwwRoot/mysql
[client]
#客戶端設置，即客戶端默認的連接參數
#port = 3306
#默認連接端口
socket = /wwwRoot/mysql/mysql.sock
#用於本地連接的socket套接字
[mysqld]
datadir=/wwwRoot/mysql
socket=/wwwRoot/mysql/mysql.sock
user=mysql
log-error =/wwwRoot/mysql/error.log
pid-file=/wwwRoot/mysql/mysqld.pid
#skip-grant-tables=true
# Disabling symbolic-links is recommended to prevent assorted security risks
#symbolic-links=0
[mysqld_safe]
log-error=/wwwRoot/mysql/mysqld.log
pid-file=/wwwRoot/mysql/mysqld.pid
mysql 默認給了給臨時密碼
cat /wwwRoot/mysql/error.log
[Note] A temporary password is generated for root@localhost: =cQ/tj)!)3y5
用 =cQ/tj)!)3y5 用這個臨時密碼登錄修改密碼
set password for root@localhost = password('123456');
如果找不到臨時密碼
就啟動 不需要密碼登錄
[mysqld]
datadir=/wwwRoot/mysql
skip-grant-tables=true
啟動后 mysql -h 127.0.0.1 直接登錄
修改密碼 set password for root@localhost = password('123456');
如果報錯：ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
執行 ： flush privileges ;
在修改密碼
support-files/mysql.server start 啟動數據庫