现在Linux下的软件越来越好安装，尤其是在Ubuntu下安装软件，更是没有技巧，只需要在联网的情况下使用apt-get inatll 即可。在决定安装MySQL之前，要先确定系统是否已经安装MySQL。

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Ubuntu 14.04 LTS 安装 LNMP Nginx\PHP5 (PHP-FPM)\MySQL http://www.linuxidc.com/Linux/2014-05/102351.htm

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本文测试版本：Ubuntu 14.04

Hadoop@master:~$ netstat -tap | grep mysql

(并非所有进程都能被检测到，所有非本用户的进程信息将不会显示，如果想看到所有信息，则必须切换到 root 用户)

由此可以看出系统中并没有安装mysql，执行以下命令进行安装。

hadoop@master:~$ sudo apt-get install mysql-server

正在读取软件包列表... 完成

正在分析软件包的依赖关系树

正在读取状态信息... 完成

将会安装下列额外的软件包：

libdbd-mysql-perl libdbi-perl libhtml-template-perl libmysqlclient18

libterm-readkey-perl mysql-client-5.5 mysql-common mysql-server-5.5

mysql-server-core-5.5

建议安装的软件包：

libmldbm-perl libnet-daemon-perl libplrpc-perl libsql-statement-perl

libipc-sharedcache-perl tinyca mailx

下列【新】软件包将被安装：

libdbd-mysql-perl libdbi-perl libhtml-template-perl libmysqlclient18

libterm-readkey-perl mysql-client-5.5 mysql-common mysql-server

mysql-server-5.5 mysql-server-core-5.5

升级了 0 个软件包，新安装了 10 个软件包，要卸载 0 个软件包，有 158 个软件包未被升级。

需要下载 8,343 kB 的软件包。

解压缩后会消耗掉 86.8 MB 的额外空间。

您希望继续执行吗？ [Y/n]

输入Y进入到安装界面，在安装过程中，会弹出一个界面要求输入mysql的root的密码，这里一定输入，省得安装后再设密码了。

再次输入密码：

获取：1 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main mysql-common all 5.5.38-0ubuntu0.14.04.1 [14.1 kB]

获取：2 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main libmysqlclient18 i386 5.5.38-0ubuntu0.14.04.1 [592 kB]

获取：3 http://us.archive.ubuntu.com/ubuntu/ trusty/main libdbi-perl i386 1.630-1 [881 kB]

获取：4 http://us.archive.ubuntu.com/ubuntu/ trusty/main libdbd-mysql-perl i386 4.025-1 [99.6 kB]

获取：5 http://us.archive.ubuntu.com/ubuntu/ trusty/main libterm-readkey-perl i386 2.31-1 [27.2 kB]

获取：6 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main mysql-client-5.5 i386 5.5.38-0ubuntu0.14.04.1 [1,433 kB]

获取：7 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main mysql-server-core-5.5 i386 5.5.38-0ubuntu0.14.04.1 [3,135 kB]

获取：8 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main mysql-server-5.5 i386 5.5.38-0ubuntu0.14.04.1 [2,082 kB]

获取：9 http://us.archive.ubuntu.com/ubuntu/ trusty/main libhtml-template-perl all 2.95-1 [65.5 kB]

获取：10 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main mysql-server all 5.5.38-0ubuntu0.14.04.1 [12.4 kB]

下载 8,343 kB，耗时 49秒 (168 kB/s)

正在预设定软件包 ...

Selecting previously unselected package mysql-common.

(正在读取数据库 ... 系统当前共安装有 212184 个文件和目录。)

Preparing to unpack .../mysql-common_5.5.38-0ubuntu0.14.04.1_all.deb ...

Unpacking mysql-common (5.5.38-0ubuntu0.14.04.1) ...

Selecting previously unselected package libmysqlclient18:i386.

Preparing to unpack .../libmysqlclient18_5.5.38-0ubuntu0.14.04.1_i386.deb ...

Unpacking libmysqlclient18:i386 (5.5.38-0ubuntu0.14.04.1) ...

Selecting previously unselected package libdbi-perl.

Preparing to unpack .../libdbi-perl_1.630-1_i386.deb ...

Unpacking libdbi-perl (1.630-1) ...

Selecting previously unselected package libdbd-mysql-perl.

Preparing to unpack .../libdbd-mysql-perl_4.025-1_i386.deb ...

Unpacking libdbd-mysql-perl (4.025-1) ...

Selecting previously unselected package libterm-readkey-perl.

Preparing to unpack .../libterm-readkey-perl_2.31-1_i386.deb ...

Unpacking libterm-readkey-perl (2.31-1) ...

Selecting previously unselected package mysql-client-5.5.

Preparing to unpack .../mysql-client-5.5_5.5.38-0ubuntu0.14.04.1_i386.deb ...

Unpacking mysql-client-5.5 (5.5.38-0ubuntu0.14.04.1) ...

Selecting previously unselected package mysql-server-core-5.5.

Preparing to unpack .../mysql-server-core-5.5_5.5.38-0ubuntu0.14.04.1_i386.deb ...

Unpacking mysql-server-core-5.5 (5.5.38-0ubuntu0.14.04.1) ...

Processing triggers for man-db (2.6.7.1-1) ...

正在设置 mysql-common (5.5.38-0ubuntu0.14.04.1) ...

Selecting previously unselected package mysql-server-5.5.

(正在读取数据库 ... 系统当前共安装有 212532 个文件和目录。)

Preparing to unpack .../mysql-server-5.5_5.5.38-0ubuntu0.14.04.1_i386.deb ...

Unpacking mysql-server-5.5 (5.5.38-0ubuntu0.14.04.1) ...

Selecting previously unselected package libhtml-template-perl.

Preparing to unpack .../libhtml-template-perl_2.95-1_all.deb ...

Unpacking libhtml-template-perl (2.95-1) ...

Selecting previously unselected package mysql-server.

Preparing to unpack .../mysql-server_5.5.38-0ubuntu0.14.04.1_all.deb ...

Unpacking mysql-server (5.5.38-0ubuntu0.14.04.1) ...

Processing triggers for ureadahead (0.100.0-16) ...

ureadahead will be reprofiled on next reboot

Processing triggers for man-db (2.6.7.1-1) ...

正在设置 libmysqlclient18:i386 (5.5.38-0ubuntu0.14.04.1) ...

正在设置 libdbi-perl (1.630-1) ...

正在设置 libdbd-mysql-perl (4.025-1) ...

正在设置 libterm-readkey-perl (2.31-1) ...

正在设置 mysql-client-5.5 (5.5.38-0ubuntu0.14.04.1) ...

正在设置 mysql-server-core-5.5 (5.5.38-0ubuntu0.14.04.1) ...

正在设置 mysql-server-5.5 (5.5.38-0ubuntu0.14.04.1) ...

16:29:54 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.

mysql start/running, process 31215

正在设置 libhtml-template-perl (2.95-1) ...

Processing triggers for ureadahead (0.100.0-16) ...

正在设置 mysql-server (5.5.38-0ubuntu0.14.04.1) ...

Processing triggers for libc-bin (2.19-0ubuntu6.1) ...

MySQL Server安装过程

mysql安装完成后，我们可以通过netstat -tap|grep mysql来查看系统是否已经有了mysql服务。

出现上面的信息，说明我们安装mysql成功。

执行以下命令可以查看MySQL的版本：

hadoop@master:~$ mysql -V

mysql Ver 14.14 Distrib 5.5.38, for debian-linux-gnu (i686) using readline 6.3