apt-get install in Ubuntu 16.04 docker image: '/etc/resolv.conf': 设备或资源忙

Posted 2023-03-30

【中文标题】apt-get install in Ubuntu 16.04 docker image: \'/etc/resolv.conf\': 设备或资源忙

【英文标题】：apt-get install in Ubuntu 16.04 docker image: '/etc/resolv.conf': Device or resource busyapt-get install in Ubuntu 16.04 docker image: '/etc/resolv.conf': 设备或资源忙

【发布时间】：2016-11-29 23:24:48

【问题描述】：

从一个相当普通的 Ubuntu 16.04 映像中运行 apt-get install 时，我收到以下错误消息：

ln: cannot remove '/etc/resolv.conf': Device or resource busy
dpkg: error processing package resolvconf (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 resolvconf

不过，这些软件包似乎安装正确。如何解决？

我的 Dockerfile 看起来像这样：

FROM ubuntu:16.04
MAINTAINER Me Myself <[e-mail]>
RUN apt-get update && apt-get install -y git nano 
RUN apt-get upgrade -y

# set the timezone. Note: there is an Ubuntu 16.04 bug which
# requires this to be done this way: 
# http://***.com/questions/40234847/docker-timezone-in-ubuntu-16-04-image/40235306#40235306
RUN ln -fs /usr/share/zoneinfo/Europe/Berlin /etc/localtime && dpkg-reconfigure -f noninteractive tzdata

RUN locale-gen en_US en_US.UTF-8 de_DE.UTF-8
ENV PATH="/opt/xyz/bin:$PATH"

【问题讨论】：

检查这个 Docker 错误条目：github.com/docker/docker/issues/1297

【参考方案1】：

如https://github.com/moby/moby/issues/1297 中所述，您可以将以下行添加到您的Dockerfile：

RUN echo "resolvconf resolvconf/linkify-resolvconf boolean false" | debconf-set-selections

这样可以在容器中安装resolvconf。

【参考方案2】：

@Christian Berendt 的上述评论和回答，我仍然得到这些错误：

debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
dpkg-preconfigure: unable to re-open stdin: 

这是我的完整解决方案，将这些行添加到 Dockerfile 中：

这些行有助于安装 resolvconf 和 debconf 错误

RUN apt-get update    
RUN apt-get install -y apt-utils debconf-utils dialog
RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
RUN echo "resolvconf resolvconf/linkify-resolvconf boolean false" | debconf-set-selections
RUN apt-get update
RUN apt-get install -y resolvconf

【讨论】：

您应该将所有这些都放在一个 RUN 命令中，以避免在构建此图像的每个步骤中创建一个层

更好的是简单地包含以下行，禁用交互模式而不安装新包：ENV DEBIAN_FRONTEND noninteractive