blocks|key|45758|text|因为镜像中没有包缓存，所以需要运行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|45759|apt-get+update|code-block|syntax|javascript|45760|在安装软件包之前，如果您的命令在Dockerfile中，那么您需要：|45761|apt-get+-y+install+curl|45762|要抑制命令的标准输出，请使用-qq。例如。|offset|length|style|CODE|45763|apt-get+-qq+-y+install+curl|45764|entityMap^0|0|0|0|0|E|3|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

It is because there is no package cache in the image, you need to run:

<pre><code>apt-get update
</code></pre>

before installing packages, and if your command is in a Dockerfile, you'll then need:

<pre><code>apt-get -y install curl
</code></pre>

To suppress the standard output from a command use <code>-qq</code>. E.g.

<pre><code>apt-get -qq -y install curl
</code></pre>

blocks|key|45790|text|在Dockerfile中添加以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|45791|RUN+apt-get+update|code-block|syntax|javascript|45792|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Add following command in Dockerfile:

<pre><code>RUN apt-get update
</code></pre>

blocks|key|45830|text|确保您的Dockerfile中没有任何语法错误，因为这也可能导致此错误。一个正确的例子是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|45831|RUN+apt-get+update+\
++++&&+apt-get+-y+install+curl+\
++++another-package|code-block|syntax|javascript|45832|修复语法错误和添加apt-get+update的组合为我解决了这个问题。|offset|length|style|CODE|45833|entityMap^0|0|0|9|E|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Make sure you don't have any syntax errors in your Dockerfile as this can cause this error as well. A correct example is:

<pre><code>RUN apt-get update \
 &amp;&amp; apt-get -y install curl \
 another-package
</code></pre>

It was a combination of fixing a syntax error and adding <code>apt-get update</code> that solved the problem for me.

blocks|key|45863|text|你需要在你的Ubuntu中更新包列表：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|45864|$+sudo+apt-get+update
$+sudo+apt-get+install+<package_name>|code-block|syntax|javascript|45865|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You need to update the package list in your Ubuntu:

<pre><code>$ sudo apt-get update
$ sudo apt-get install &lt;package_name&gt;
</code></pre>

blocks|key|4552481|text|我发现在运行"apt-get+update“时，通过/tmp挂载本地卷会导致权限问题，从而阻止包缓存被填充。希望这不是大多数人都会做的事情，但如果你看到这个问题，它是另一种需要寻找的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4552482|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I found that mounting a local volume over /tmp can cause permission issues when the "apt-get update" runs, which prevents the package cache from being populated. Hopefully, this isn't something most people do, but it's something else to look for if you see this issue.

blocks|key|4552503|text|当我尝试安装jre时，我遇到了同样的问题，我尝试了命令"apt-get+update“，然后再次尝试"apt+install+default-jre”，它成功了！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4552504|我希望它能帮助你，祝你好运！|4552505|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I have met the same question when I try to install jre
and
I try the command &quot;apt-get update&quot; and then
try &quot;apt install default-jre&quot; again
and it worked !
I wish it can help you, good luck!

I installed Ubuntu 14.04 image on docker. After that, when I try to install packages inside the ubuntu image, I'm getting unable to locate package error: 

<pre><code>apt-get install curl

Reading package lists... Done
Building dependency tree 
Reading state information... Done
E: Unable to locate package curl
</code></pre>

How to fix this error?

Cannot install packages inside docker Ubuntu image

Docker

Ubuntu

我在docker上安装了Ubuntu 14.04镜像。在那之后，当我试图在ubuntu镜像中安装软件包时，我得到了unable to locate package错误：apt-get install curlReading package lists... DoneBuilding dependency tree   ...

问无法在docker Ubuntu镜像中安装软件包
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