docker.io : 取决于: containerd (>= 1.2.6-0ubuntu1~)

Question

我在 Ubuntu 20.04 中安装 docker 时遇到问题。

wolf@linux:~$ sudo apt install docker.io
Reading package lists... Done
Building dependency tree       
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:
 docker.io : Depends: containerd (>= 1.2.6-0ubuntu1~)
E: Unable to correct problems, you have held broken packages.
wolf@linux:~$ 

错误消息说我需要 containerd (>= 1.2.6-0ubuntu1~)

这很奇怪，因为我已经有了更新的版本 1.2.13-2

wolf@linux:~$ dpkg -l containerd.io 
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-======================================
ii  containerd.io  1.2.13-2     amd64        An open and reliable container runtime
wolf@linux:~$ 

系统已更新。我已经执行了sudo apt update && sudo apt upgrade，不需要新的更新。

根据评论中的要求更新

wolf@linux:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:    20.04
Codename:   focal
wolf@linux:~$ 

Answer 1

containerd并且containerd.io是2个不同的包。

尝试dpkg -l containerd*，您应该会看到两个包。

$ dpkg -l containerd*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version        Architecture Description
+++-==============-==============-============-======================================
ii  containerd     1.3.3-0ubuntu2 amd64        daemon to control runC
rc  containerd.io  1.2.13-2       amd64        An open and reliable container runtime
$ 

如果containerd没有，请继续安装它sudo apt install containerd。

如果这有帮助，请告诉我。