耒班车江山就是人民 發表於 2020-2-28 14:40:00

ubuntu---查看、安装、切换内核

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<p><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 首先可以查看一下内核列表:<span style="background-color: rgba(255, 255, 0, 1)"><strong>sudo dpkg --get-selections | grep linux-image </strong></span></span></p>
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<p><span style="font-family: 仿宋; font-size: 18px; background-color: rgba(255, 255, 255, 1)"><strong>&nbsp;&nbsp;&nbsp; </strong>查看Linux中安装了哪些内核:</span><code class="language-cpp hljs"><span style="font-size: 18px; background-color: rgba(255, 255, 0, 1)"> dpkg --get-selections | grep linux 或者 dpkg --</span><span class="hljs-built_in"><span style="font-size: 18px; background-color: rgba(255, 255, 0, 1)">list |grep linux </span></span></code></p>
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<p><code class="language-cpp hljs"><span class="hljs-built_in"><span style="font-size: 18px; background-color: rgba(255, 255, 0, 1)"><span style="background-color: rgba(255, 255, 255, 1)">  需要知道的是,内核映像文件主要包括以下类型:</span><br><span style="background-color: rgba(255, 255, 255, 1)">    linux-image-版本号:内核映像文件</span><br><span style="background-color: rgba(255, 255, 255, 1)">    linux-headers-版本号:内核头文件</span><br><span style="background-color: rgba(255, 255, 255, 1)">    linux-image-extra-版本号:内核扩展文件</span><br><br><span style="background-color: rgba(255, 255, 255, 1)">  删除多余内核文件:</span><span style="background-color: rgba(255, 255, 255, 1)">sudo apt-get purge linux-image-&lt;版本号&gt; 命令</span></span></span></code></p>
<p><code class="language-cpp hljs"><span class="hljs-built_in"><span style="font-size: 18px; background-color: rgba(255, 255, 0, 1)"><br><span style="background-color: rgba(255, 255, 255, 1)">  更新grub文件:</span><span style="background-color: rgba(255, 255, 255, 1)">sudo update-grub 命令</span><br></span> <br></span></code></p>
<p><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 也可以使用:<span style="background-color: rgba(255, 255, 0, 1)"><strong>uname -r</strong> </span>,查看一下目前正在使用的内核版本</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 然后安装自己想要的内核版本: <span style="background-color: rgba(255, 255, 0, 1)"><strong>sudo apt-get install linux-image-4.4.0-75-generic</strong></span></span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 安装好以后, 使用<span style="background-color: rgba(255, 255, 0, 1)"><strong> grep menuentry /boot/grub/grub.cfg</strong></span>查看启动顺序</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;</span><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 然后我们需要去修改: <span style="background-color: rgba(255, 255, 0, 1)">sudo gedit /etc/default/grub</span></span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 把GRUB_DEFAULT=0修改为 GRUB_DEFAULT=”Ubuntu,Linux 4.4.0-21-generic“ 这种类型的, 当然内核版本应该是你想要的.</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 然后使用sudo update-grub更新启动项</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 然后修改 sudo gedit /boot/grub/grub.cfg</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 大概在148行有个........</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 把4.15.0-39改为你需要的版本号,修改好以后保存退出.</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 重启电脑,你可以使用:uname -r,发现你的内核更新了.</span><br><br><span style="font-family: 仿宋; font-size: 18px">&nbsp;&nbsp;&nbsp; 原文链接:https://blog.csdn.net/dzhongjie/article/details/84847442</span></p>
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<p><span style="font-family: 仿宋; font-size: 18px">输入命令</span></p>
<p><span style="font-family: 仿宋; background-color: rgba(255, 255, 0, 1); font-size: 18px">cat /proc/version</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">显示如下</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Linux version 4.10.0-28-generic (buildd@lgw01-12) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; linux内核版本号</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">gcc version 5.4.0&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; gcc编译器版本号</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Ubuntu 5.4.0-6ubuntu1 &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ubuntu版本号</span></p>
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<p><span style="font-family: 仿宋; font-size: 18px">输入命令</span></p>
<p><span style="font-family: 仿宋; background-color: rgba(255, 255, 0, 1); font-size: 18px">uname -a</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">显示linux的内核版本和系统是多少位的:X86_64代表系统是64位的。</span></p>
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<p><span style="font-family: 仿宋; font-size: 18px">输入命令</span></p>
<p><span style="font-family: 仿宋; background-color: rgba(255, 255, 0, 1); font-size: 18px">lsb_release -a</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">显示如下</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Distributor ID: Ubuntu &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //类别是ubuntu</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Description:&nbsp; Ubuntu 16.04.3 LTS&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //16年3月发布的稳定版本,LTS是Long Term Support:长时间支持版本,支持周期长达三至五年</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Release: &nbsp; &nbsp;16.04 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; //发行日期或者是发行版本号</span></p>
<p><span style="font-family: 仿宋; font-size: 18px">Codename: &nbsp; xenial &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //ubuntu的代号名称</span></p>



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