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MySql安装(rpm)和启动配置_MySQL

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MySql安装(rpm)和启动配置

 

安装步骤:

1.解压MySql安装包

[root@bakdbserver mysql]# tar -xf MySQL-5.5.24-1.rhel5.x86_64.tar[root@bakdbserver mysql]# ll总计 373920-rw-r--r-- 1 root root  191242240 2012-05-28 MySQL-5.5.24-1.rhel5.x86_64.tar-rw-r--r-- 1 7161 wheel  18204697 2012-04-19 MySQL-client-5.5.24-1.rhel5.x86_64.rpm-rw-r--r-- 1 7161 wheel   3869191 2012-04-19 MySQL-devel-5.5.24-1.rhel5.x86_64.rpm-rw-r--r-- 1 7161 wheel  69218533 2012-04-19 MySQL-embedded-5.5.24-1.rhel5.x86_64.rpm-rw-r--r-- 1 7161 wheel  55049591 2012-04-19 MySQL-server-5.5.24-1.rhel5.x86_64.rpm-rw-r--r-- 1 7161 wheel   2083987 2012-04-19 MySQL-shared-5.5.24-1.rhel5.x86_64.rpm-rw-r--r-- 1 7161 wheel  42805943 2012-04-19 MySQL-test-5.5.24-1.rhel5.x86_64.rpm
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2.创建MySql系统管理用户

[root@bakdbserver ~]# groupadd mysql[root@bakdbserver ~]# useradd -g mysql mysql[root@bakdbserver mysql]# id mysqluid=502(mysql) gid=54325(mysql) groups=54325(mysql)
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3.安装 MySql rpm包

[root@bakdbserver mysql]# rpm -ivh "*.rpm"Preparing...                ########################################### [100%]   1:MySQL-client           ########################################### [ 17%]   2:MySQL-devel            ########################################### [ 33%]   3:MySQL-embedded         ########################################### [ 50%]   4:MySQL-server           ########################################### [ 67%]   5:MySQL-shared           ########################################### [ 83%]   6:MySQL-test             ########################################### [100%]  
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卸载顺序:

[root@bakdbserver ~]# rpm -e MySQL-server-5.5.24-1.rhel5[root@bakdbserver ~]# rpm -e MySQL-embedded-5.5.24-1.rhel5[root@bakdbserver ~]# rpm -e MySQL-shared-5.5.24-1.rhel5[root@bakdbserver ~]# rpm -e MySQL-devel-5.5.24-1.rhel5[root@bakdbserver ~]# rpm -e MySQL-test-5.5.24-1.rhel5[root@bakdbserver ~]# rpm -e MySQL-client-5.5.24-1.rhel5--此时MySql自动安装在mysql用户下--尝试在root用户启动mysql服务[root@bakdbserver ~]# service mysql startStarting MySQL..[确定][root@bakdbserver ~]# ps -ef|grep mysqlroot     17075     1  0 15:35 pts/1    00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/bakdbserver.pidmysql    17153 17075  0 15:35 pts/1    00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/bakdbserver.err --pid-file=/var/lib/mysql/bakdbserver.pidroot     17178 12211  0 15:35 pts/1    00:00:00 grep mysql
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mysql安装软件在/usr/share/mysql目录下

Mysql数据库创建在/var/lib/mysql目录下

4.修改安装目录权限

说明:

为了安全地管理MySQL,应使用系统的mysql专有用户进行MySQL的日常管理,为了使mysql用户有读写安装目录的权限,应修MySQL安装目录的权限。

[root@bakdbserver mysql]# cd /usr/share/mysql[root@bakdbserver share]# chown -R mysql:mysql .[root@bakdbserver mysql]# ll总计 1324-rwxr-xr-x 1 mysql mysql   1153 2012-04-19 binary-configuredrwxr-xr-x 2 mysql mysql   4096 08-23 11:39 charsets-rwxr-xr-x 1 mysql mysql   4528 2012-04-19 config.huge.ini...--由于MySQL数据库目录已经是mysql用户权限,故不用修改[root@bakdbserver mysql]# cd /var/lib/mysql[root@bakdbserver mysql]# ll总计 28752drwx--x--x 2 mysql mysql     4096 08-23 09:17 mysqldrwx------ 2 mysql mysql     4096 08-23 09:17 performance_schema-rw-r--r-- 1 mysql mysql      616 08-23 11:39 RPM_UPGRADE_HISTORY-rw-r--r-- 1 mysql mysql      495 08-23 11:39 RPM_UPGRADE_MARKER-LASTdrwxr-xr-x 2 mysql mysql     4096 08-23 09:17 test...
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5.启动MySQL服务器

处于安全方面的原因,应避免以Linux根用户身份运行服务器,应以mysql用户身份启动服务器。

[root@bakdbserver mysql]# ./mysql.server start --user=mysqlStarting MySQL..[确定]或是[root@bakdbserver mysql]# /usr/bin/mysqld_safe --user=mysql &
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要想在系统启动时自动以给定的用户身份启动服务器,可在服务器数据目录下的/etc/my.cnf选项文件的[mysqld]组中,通过增加用户选项来指定用户名

--如果没有/etc/my.cnf文件,可以手动创建[root@bakdbserver ~]# vi /etc/my.cnf[mysqld]user=mysql[root@bakdbserver ~]# chown mysql:mysql /etc/my.cnf
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6.为mysql添加环境变量

为方便管理和使用,在系统mysql用户下添加环境变量

[mysql@bakdbserver ~]$ vi .bash_profilePATH=$PATH:$HOME/binexport PATHexport LANG=zh_CNexport DATADIR=/var/lib/mysqlexport BASEDIR=/usrexport MYSQL_HOME=$BASEDIR/share/mysql
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7.修改mysql数据库root用户密码

安装完成后root密码默认为空,为了安全必需修改root初始密码

[mysql@bakdbserver ~]$ mysqladmin -uroot -p password rootEnter password:
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