[{"data":1,"prerenderedAt":233},["ShallowReactive",2],{"tag-安装-1":3},{"title":4,"articles":5,"hot_article":18,"month_arch":81,"total":229,"cover":230},"安装 - 独孤影的博客",[6],{"id":7,"title":8,"uri":8,"author":9,"tags":10,"created_at":15,"view_count":16,"content":17},37,"Linux内核的安装","duguying",[11,12,13,14],"linux","内核","安装","kernel","2016-06-07 14:15:00",3343,"\u003Cp>此文不介绍Linux内核的编译及编译配置，只讲述在编译完成之后的内核部署相关内容，此文环境 CentOS 7，内核源码版本 4.4.12 。注意编译安装完成后 \u002Fusr\u002Fsrc\u002Flinux-4.4.12 目录不能删除\u003C\u002Fp>\u003Cp>内核编译完成，编译所在目录 \u002Fusr\u002Fsrc ，接下来执行\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">make modules_install\u003C\u002Fpre>\u003Cp>他会将编译后的文件拷贝到 \u002Flib\u002Fmodules\u002F4.4.12 目录，接下来拷贝内核\u003Cbr\u002F>\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">cp \u002Fusr\u002Fsrc\u002Flinux-4.4.12\u002Farch\u002Fx86_64\u002Fboot\u002FbzImage \u002Fboot\u002Fvmlinuz-4.4.12.x86_64\u003C\u002Fpre>\u003Cp>进入 \u002Fboot 目录并开始创建临时文件系统\u003Cbr\u002F>\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">cd \u002Fboot\nmkinitrd initramfs-4.4.12.img 4.4.12\u003C\u002Fpre>\u003Cp>将会从 \u002Flib\u002Fmodules\u002F4.4.12 目录生成 initramfs-4.4.12.x86_64.img 文件，便是临时文件系统，我们可以看到该目录下的文件目录\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">➜  4.4.12 ls -al\ndrwxr-xr-x.  3 root root   4096 6月   7 22:31 .\ndrwxr-xr-x.  4 root root     47 6月   7 21:44 ..\nlrwxrwxrwx.  1 root root     21 6月   7 21:44 build -> \u002Fusr\u002Fsrc\u002Flinux-4.4.12\ndrwxr-xr-x. 13 root root   4096 6月   7 22:31 kernel\nlrwxrwxrwx.  1 root root     21 6月   7 22:30 source -> \u002Fusr\u002Fsrc\u002Flinux-4.4.12\u003C\u002Fpre>\u003Cp>可以看到build目录链接到 \u002Fusr\u002Fsrc\u002Flinux-4.4.12 ，因此上面说不能删除该源码目录，重命名 img 文件\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">mv initramfs-4.4.12.img initramfs-4.4.12.x86_64.img\u003C\u002Fpre>\u003Cp>为何我们要将这些文件名命名成这样呢，我们可以看到 boot 目录下的文件如下\u003C\u002Fp>\u003Cpre class=\"brush:bash;toolbar:false\">➜  \u002Fboot ls\nconfig-3.10.0-327.el7.x86_64\ngrub\ngrub2\ninitramfs-0-rescue-a21a5e0aa76b4b0c85aeb76161573b23.img\ninitramfs-3.10.0-327.el7.x86_64.img\ninitramfs-3.10.0-327.el7.x86_64kdump.img\ninitramfs-4.4.12.x86_64.img\ninitrd-plymouth.img\nsymvers-3.10.0-327.el7.x86_64.gz\nSystem.map-3.10.0-327.el7.x86_64\nvmlinuz-0-rescue-a21a5e0aa76b4b0c85aeb76161573b23\nvmlinuz-3.10.0-327.el7.x86_64\nvmlinuz-4.4.12.x86_64\u003C\u002Fpre>\u003Cp>可以发现，centos 7 系统原来的内核命名已经临时文件系统命名是有规律的，vmlinuz-<version>.<arc> 是内核命名规则，initramfs-<version>.<arc>.img 是文件系统文件名。这么有规律的文件名是因为 centos 7 的 grub2 的默认配置文件中是按照这种规则自动搜索内核的，所以，centos 7 中如此命名新的内核可以不必额外配置 grub2 的配置文件，当然如果你熟悉 grub2 的配置，你也可以任意命名，在配置文件中写入正确的配置即可。\u003Cbr\u002F>\u003C\u002Fp>\u003Cp>参考文献：\u003C\u002Fp>\u003Cp>[1] \u003Ca href=\"http:\u002F\u002Fblog.chinaunix.net\u002Fuid-24782829-id-3211008.html\">http:\u002F\u002Fblog.chinaunix.net\u002Fuid-24782829-id-3211008.html\u003C\u002Fa>\u003C\u002Fp>\u003Cp>\u003Cbr\u002F>\u003C\u002Fp>",{"title":19,"list":20},"最热文章",[21,27,33,39,45,51,57,63,69,75],{"id":22,"title":23,"uri":24,"author":9,"created_at":25,"view_count":26},28,"docker容器目录与主机目录同步","\u002Farticle\u002Fdocker容器目录与主机目录同步","2014-12-31 12:34:08",15570,{"id":28,"title":29,"uri":30,"author":9,"created_at":31,"view_count":32},21,"beego中使用fis","\u002Farticle\u002Fbeego中使用fis","2014-12-03 10:47:56",9250,{"id":34,"title":35,"uri":36,"author":9,"created_at":37,"view_count":38},20,"用github登录，oauth开发","\u002Farticle\u002F用github登录，oauth开发","2014-11-23 13:33:37",9113,{"id":40,"title":41,"uri":42,"author":9,"created_at":43,"view_count":44},18,"windows服务注册工具nssm","\u002Farticle\u002Fwindows服务注册工具nssm","2014-10-31 21:34:39",9047,{"id":46,"title":47,"uri":48,"author":9,"created_at":49,"view_count":50},49,"用latex排版中文书籍","\u002Farticle\u002F用latex排版中文书籍","2016-10-31 11:12:02",8634,{"id":52,"title":53,"uri":54,"author":9,"created_at":55,"view_count":56},19,"texlive中文书签乱码","\u002Farticle\u002Ftexlive中文书签乱码","2014-11-15 02:54:01",8461,{"id":58,"title":59,"uri":60,"author":9,"created_at":61,"view_count":62},6,"Windows上的软件包管理器chocolatey","\u002Farticle\u002FWindows上的软件包管理器chocolatey","2014-08-10 15:55:22",8009,{"id":64,"title":65,"uri":66,"author":9,"created_at":67,"view_count":68},3,"利用开源和免费资源搭建CI环境","\u002Farticle\u002F利用开源和免费资源搭建CI环境","2014-07-04 16:54:58",7732,{"id":70,"title":71,"uri":72,"author":9,"created_at":73,"view_count":74},16,"php-fpm网站目录权限配置","\u002Farticle\u002Fphp-fpm网站目录权限配置","2014-10-18 01:36:10",7274,{"id":76,"title":77,"uri":78,"author":9,"created_at":79,"view_count":80},27,"sublime text 2插件开发，外部修改文件无法重新加载","\u002Farticle\u002Fsublime text 2插件开发，外部修改文件无法重新加载","2014-12-26 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