树莓派4安装Ubuntu 19.10的教程详解
<p>由于之前在raspbian上面跑opencv有些依赖包装不上，所以一些代码不能跑，就想着用Ubuntu试试。安装的过程是跟着这个视频来的：</p>
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<iframe allowfullscreen="true" data-mediaembed="bilibili" frameborder="0" height="500" id="ng00FVda-1580544059703" scrolling="no" src="https://player.bilibili.com/player.html?aid=73688342" width="650"></iframe></p>
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在Raspberry Pi 4上安装完整版Ubuntu 19.10[中英字幕]</p>
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<strong>下载系统镜像</strong></p>
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官网上下载很慢，不过貌似这上面Ubuntu 19.10下载更快一些<br>
我这里下载的是arm64版本的。</p>
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<strong>安装系统</strong></p>
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下载后将系统镜像烧录进SD卡，不过这个系统有bug,USB设备无响应，需在config.txt中添加total_mem=3072，将内存限制在3g，所以没有发挥4g的全部性能（需通过下载notepad++来修改，直接用文本管理器修改可能会破坏其它地方）。在</p>
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<code class="plain plain">kernel=uboot_rpi_4.bin</code>
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<code class="plain plain">max_framebuffers=3</code>
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下面加上一行</p>
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total_mem=3072 限制3G内存，安装系统完成后重启可删除这行</p>
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<code class="plain plain">kernel=uboot_rpi_4.bin</code>
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<code class="plain plain">max_framebuffers=2</code>
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<code class="plain plain">total_mem=3072</code>
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如果想要树莓派超频到2GHz的话可在config.txt中添加以下三行代码：</p>
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<code class="plain plain">over_voltage=4</code>
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<code class="plain plain">arm_freq=2000</code>
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<code class="plain plain">gpu_freq=650`</code>
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启动系统，账户名和密码均输入ubuntu，注意密码不显示，输完直接回车，之后会要你重新设置密码<br>
此时要接入网线，安装桌面环境，输入（选一个）</p>
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<code class="plain plain">sudo apt-get install ubuntu-desktop</code>
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<code class="plain plain">sudo apt-get install xubuntu-desktop</code>
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<code class="plain plain">sudo apt-get install lubuntu-desktop</code>
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<code class="plain plain">sudo apt-get install kubuntu-desktop</code>
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其中lubuntu最为轻量但简陋。</p>
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注意此处下载量非常大，且不换源的话网速非常慢（10kb左右），但换源太复杂，我选择早起下载（惊喜地发现早上网速贼好hh，有100多kb）</p>
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我安装的是ubuntu-desktop，但是启动系统加入桌面后usb设备还是不能用，没找到原因，于是我<br>
重新装了lubuntu，居然正常了。至此，安装成功。</p>
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总结</p>
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以上所述是小编给大家介绍的树莓派4安装Ubuntu 19.10的教程详解，希望对大家有所帮助！</p>
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原文链接：https://blog.csdn.net/wing_sky_/article/details/104134591</p>
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