Linux之系统安装详解（centos[6|7]；ubuntu1804）
例如一块200G的硬盘，分区策略如下/ 50G
/boot 1G
/data 30G
swap 2G(内存的两倍)
[*] 虚拟机安装CenTOS 6.9
[*]选择第一项https://s1.运维网.com/images/blog/201901/12/99869c6a1181f66284fd6d9621329683.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]若介质安全可忽略完整性检测https://s1.运维网.com/images/blog/201901/12/859b6ebbc897880e10dcbecec346261a.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
Ctrl+Alt+Enter（虚拟机进入全屏模式，退出亦是）
[*]选择安装语言和键盘布局https://s1.运维网.com/images/blog/201901/12/bd2dba82b8862823ee1fe3661bd15a2a.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
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[*]选择要安装到什么类型的设备上（DAS）https://s1.运维网.com/images/blog/201901/12/46729f5a65cbaddf721b782e4211a6e5.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]初始化硬盘，擦除数据（确定数据无用执行）https://s1.运维网.com/images/blog/201901/12/d21461cd8b27d3209f6ae4288d20c626.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]设置主机名称https://s1.运维网.com/images/blog/201901/12/e8678244dc1e005ff170969a6c51e3de.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]设置时区，北京时间，UTC前✅去掉https://s1.运维网.com/images/blog/201901/12/168ad34ec063dd28b0c6f224bd31877c.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]设置root口令
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[*]自动以分区布局https://s1.运维网.com/images/blog/201901/12/30ef22fd4591b72fe83533f6d20a2e25.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
Ctrl+Alt+F2(F1-F6,F6为图形界面)：可临时进入命令模式查看分区布局 fdisk -l，查看内存大小 cat /proc/meminfo(Shift+PgUp向上翻页)
[*]开始分区与分区详情（两次确定格式刷）https://s1.运维网.com/images/blog/201901/12/bf32f4c7f750c0cb5a3c85ba2c7c5ad6.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
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[*]此步骤默认即可，默认安装引导到sdahttps://s1.运维网.com/images/blog/201901/12/b084837b18a98100e8aa69b0140727d9.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]教学环境为Desktop安装，生产环境默认Minimal安装，后续安装用到的软件包，下面的选择定制安装。https://s1.运维网.com/images/blog/201901/12/be9a6ba8a594393138aafe4121b1d8bf.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]安装KDE桌面环境（如果不需要，上一步可选择后续定制安装）https://s1.运维网.com/images/blog/201901/12/802efc29a0d8a3da279a36bdfcc2826e.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]开始进行安装https://s1.运维网.com/images/blog/201901/12/b0cf67f54174f872d022e7e448c104df.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]安装完成后重启机器，进行设置向导，设置如下项目https://s1.运维网.com/images/blog/201901/12/506e5e8c5f77b2b9e40cf455ae0a8261.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]登录后界面https://s1.运维网.com/images/blog/201901/12/5779712e7897abc7263335e86bcc94c7.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[*]虚拟机安装CenTOS7.4https://s1.运维网.com/images/blog/201901/12/1b10b515e84bf40767aad0d96a636f25.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
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例如一块200G的硬盘，分区策略如下
/ 100G
/boot 1G
/data 50G
swap 2G(内存的两倍)
1.Ubuntu8104安装
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