linux系統安裝mysql數據庫

1、首先關閉linux的防火牆，執行命令

chkconfig iptables off

2、從mysql官網上下載自己適合的mysql版本https://dev.mysql.com/downloads/mysql/5.6.html#downloads，進入mysql官網，依次點擊

 

 

 

 

 

3、下載后的mysql文件

mysql-5.6.40-linux-glibc2.12-i686.tar.gz

 

 將下載好的mysql壓縮文件放置在linux的/usr/local文件夾下，解壓該壓縮文件

 tar -zxvf mysql-5.6.40-linux-glibc2.12-i686.tar.gz

 

將解壓后的文件重命名為mysql

mv mysql-5.6.40-linux-glibc2.12-i686 mysql

 

4、創建mysql用戶組及用戶

groupadd mysql
useradd -r -g mysql mysql

 

5、進入到mysql目錄，執行添加MySQL配置的操作

cp support-files/my-medium.cnf /etc/my.cnf
或：
cp support-files/my-default.cnf /etc/my.cnf

 

是否覆蓋？按y 回車

6、編輯/etc/my.cnf文件；

vi /etc/my.cnf

 

在my.cnf文件中添加或者修改相關配置，更改完成后保存退出

 1 # For advice on how to change settings please see
 2 # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
 3 # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
 4 # *** default location during install, and will be replaced if you
 5 # *** upgrade to a newer version of MySQL.
 6 
 7 [mysqld]
 8 
 9 # Remove leading # and set to the amount of RAM for the most important data
10 # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
11 # innodb_buffer_pool_size = 128M
12 
13 # Remove leading # to turn on a very important data integrity option: logging
14 # changes to the binary log between backups.
15 # log_bin
16 
17 # These are commonly set, remove the # and set as required.
18 basedir = /usr/local/mysql
19 datadir = /usr/local/mysql/data
20 port = 3306
21 # server_id = .....
22 socket = /tmp/mysql.sock
23 character-set-server = utf8
24 skip-name-resolve
25 log-err = /usr/local/mysql/data/error.log
26 pid-file = /usr/local/mysql/data/mysql.pid
27 
28 # Remove leading # to set options mainly useful for reporting servers.
29 # The server defaults are faster for transactions and fast SELECTs.
30 # Adjust sizes as needed, experiment to find the optimal values.
31 # join_buffer_size = 128M
32 # sort_buffer_size = 2M
33 # read_rnd_buffer_size = 2M 
34 
35 sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

 

7、在mysql當前目錄下設定目錄的訪問權限（注意后面的小點，表示當前目錄）

chown -R mysql .
chgrp -R mysql .
scripts/mysql_install_db --user=mysql
chown -R root .
chown -R mysql data

 

8、初始化數據（在mysql/bin或者mysql/scripts下有個 mysql_install_db 可執行文件初始化數據庫），進入mysql/bin或者mysql/scripts目錄下，執行下面命令

./mysql_install_db --verbose --user=root --defaults-file=/etc/my.cnf --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql --pid-file=/usr/local/mysql/data/mysql.pid --tmpdir=/tmp

 

9、啟動mysql，進入/usr/local/mysql/bin目錄，執行下面命令

./mysqld_safe --defaults-file=/etc/my.cnf --socket=/tmp/mysql.sock --user=root &

 

注意，如果光標停留在屏幕上，表示啟動成功，需要我們先關閉shell終端，再開啟一個新的shell終端，不要執行退出操作。如果出現 mysql ended這樣的語句，表示Mysql沒有正常啟動，你可以到log中查找問題. 

10、設置開機啟動，新開啟shell中斷后，進入mysql目錄，執行下面命令

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysql

chmod 700 /etc/init.d/mysql
chkconfig --add mysqld
chkconfig --level 2345 mysqld on
chown mysql:mysql -R /usr/local/mysql/

 

重啟linux

reboot

 

查看mysql狀態

service mysqld status

 

11、添加遠程訪問權限

　　（1）、添加mysql命令

ln  -s /usr/local/mysql/bin/mysql  /usr/bin  （mysql的安裝路徑）

 

　　（2）、更改訪問權限

登錄mysql,執行下面命令
mysql -uroot -p 
密碼為空直接回車,運行以下兩條命令
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'duan' with grant option;
Flush privileges;

 

退出mysql

exit

重啟linux,就完成了

reboot

 

注：本機訪問mysql，root賬戶默認是沒有密碼的，端口號默認3306，如果需要修改root賬戶密碼，在/usr/local/mysql/bin目錄下，執行下面命令

./mysqladmin -h 127.0.0.1 -P3306 -uroot password 'duan'exit