Ubuntu 22.04.2安装openssh-server失败求助

问题描述 #

我在Ubuntu 22.04.2（不是22.04.1）上安装OpenSSH服务器时碰到了麻烦，执行sudo apt install openssh-server后出现了依赖错误，具体报错信息如下：

$ sudo apt install openssh-server

Reading package lists... Done

Building dependency tree... Done

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:

The following packages have unmet dependencies:

libbsd0:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libcbor0.8:i386 : Depends: libc6:i386 (>= 2.4) but it is not installable

libcom-err2:i386 : Depends: libc6:i386 (>= 2.28) but it is not installable

libedit2:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libfido2-1:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libgssapi-krb5-2:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libk5crypto3:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libkeyutils1:i386 : Depends: libc6:i386 (>= 2.7) but it is not installable

libkrb5-3:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

libkrb5support0:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

libmd0:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libpcre2-8-0:i386 : Depends: libc6:i386 (>= 2.4) but it is not installable

libselinux1:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

libssl3:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

libtinfo6:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable

libudev1:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

openssh-client:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable

zlib1g:i386 : Depends: libc6:i386 (>= 2.4) but it is not installable

E: Unable to correct problems, you have held broken packages.

解决方法 #

看起来核心问题是系统启用了i386架构，但对应的32位libc6包无法安装，同时存在破损锁定的包。试试下面这些步骤：

• 先检查系统架构配置
  打开终端执行这两个命令，看看当前启用的架构：

  dpkg --print-architecture
  dpkg --print-foreign-architectures
  

  如果输出里有i386，而你平时不用32位软件的话，直接移除这个架构就行：

  sudo dpkg --remove-architecture i386
  sudo apt update
  

  更新完成后再重新运行安装命令：sudo apt install openssh-server，应该就能正常安装了。

• 如果需要保留i386架构
  那得先修复依赖和破损包：

  1. 先尝试自动修复依赖：

     sudo apt-get install -f
     

  2. 清理本地缓存并刷新源，避免缓存损坏导致的问题：

     sudo apt clean
     sudo apt update --fix-missing
     

  3. 手动安装最核心的依赖包libc6:i386：

     sudo apt install libc6:i386
     

  等这个包安装成功后，再重新安装openssh-server。

• 检查并解除锁定的包
  报错里提到了“held broken packages”，可以检查有没有被锁定的包：

  dpkg --get-selections | grep hold
  

  如果有输出的包名，用下面的命令解除锁定（把<包名>换成实际的包）：

  sudo apt-mark unhold <包名>
  

  解除所有锁定后，再执行sudo apt install -f修复依赖，最后再尝试安装openssh-server。

备注：内容来源于stack exchange，提问作者chess