linux启动mysql_Linux服务器安装Mysql教程

最开始用服务器的时候，也是对这些环境的安装操作极其陌生，找了很多方式，写这边文章就是为了让更少的童鞋走弯路，下面我们看看具体的操作流程。

1、首先关闭linux的防火墙，执行命令

chkconfig iptables off

2、从mysql官网上下载自己适合的mysql版本https://dev.mysql.com/downloads/mysql/5.6.html#downloads，进入mysql官网，依次点击

3、下载后的mysql文件

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

将下载好的mysql压缩文件放置在linux的/usr/local文件夹下，解压该压缩文件

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

将解压后的文件重命名为mysql

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

4、创建mysql用户组及用户

groupadd mysql

useradd -r -g mysql mysql

5、进入到mysql目录，执行添加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

是否覆盖？按y 回车

6、编辑/etc/my.cnf文件；

vi /etc/my.cnf

在my.cnf文件中添加或者修改相关配置，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 data10# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.11# innodb_buffer_pool_size = 128M1213# Remove leading # to turn on a very important data integrity option: logging14# changes to the binary log between backups.15# log_bin1617# These are commonly set, remove the # and set as required.18basedir = /usr/local/mysql19datadir = /usr/local/mysql/data20port = 330621# server_id = .....22socket = /tmp/mysql.sock23character-set-server = utf824skip-name-resolve25log-err = /usr/local/mysql/data/error.log26pid-file = /usr/local/mysql/data/mysql.pid2728# 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 = 128M32# sort_buffer_size = 2M33# read_rnd_buffer_size = 2M 3435sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

7、在mysql当前目录下设定目录的访问权限（注意后面的小点，表示当前目录）

chown -R mysql .

chgrp -R mysql .

scripts/mysql_install_db --user=mysql

chown -R root .

chown -R mysql data

8、初始化数据（在mysql/bin或者mysql/scripts下有个 mysql_install_db 可执行文件初始化数据库），进入mysql/bin或者mysql/scripts目录下，执行下面命令

./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、启动mysql，进入/usr/local/mysql/bin目录，执行下面命令

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

注意，如果光标停留在屏幕上，表示启动成功，需要我们先关闭shell终端，再开启一个新的shell终端，不要执行退出操作。如果出现 mysql ended这样的语句，表示Mysql没有正常启动，你可以到log中查找问题.

10、设置开机启动，新开启shell中断后，进入mysql目录，执行下面命令

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

重启linux

reboot

查看mysql状态