linux系統安裝mysql數據庫
阿新 • • 發佈：2018-05-04
doc my.cnf 更改 查找 see name -a 訪問 replace
1、首先關閉linux的防火墻，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、下載後的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
將解壓後的文件重命名為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，更改完成後保存退出
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（註意後面的小點，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 &
註意，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中斷後，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
註：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
linux系統安裝mysql數據庫