I'm trying to install docker on my Ubuntu 20.04. Trying install docker with apt-get and snap:
sudo apt-get install docker Output:
Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: wmdocker The following NEW packages will be installed: docker wmdocker 0 upgraded, 2 newly installed, 0 to remove and 6 not upgraded. Need to get 0 B/14.3 kB of archives. After this operation, 58.4 kB of additional disk space will be used. Do you want to continue? [Y/n] y Selecting previously unselected package wmdocker. (Reading database ... 193518 files and directories currently installed.) Preparing to unpack .../wmdocker_1.5-2_amd64.deb ... Unpacking wmdocker (1.5-2) ... Selecting previously unselected package docker. Preparing to unpack .../archives/docker_1.5-2_all.deb ... Unpacking docker (1.5-2) ... Setting up wmdocker (1.5-2) ... Setting up docker (1.5-2) ... Processing triggers for man-db (2.9.1-1) ... If I run docker command I get error:
a@ubuntu:~$ docker Command 'docker' not found, but can be installed with: sudo snap install docker # version 19.03.11, or sudo apt install docker.io # version 19.03.8-0ubuntu1.20.04.1 See 'snap info docker' for additional versions. Why system can't find docker command?
Then I tied snap:
sudo snap install docker And docker command run fine.
Why I can install docker with snap and can't with apt-get ?
1 Answer
Because that docker is not the docker you expected. docker is the package name of system tray for KDE3/GNOME2. You can verify that by visiting Ubuntu package search or by running
apt show docker The error message you got while running docker from terminal gives a brief idea about this confusion.
To install the docker you expected, refer to official documentation or see How to install docker community on Ubuntu 20.04 LTS?
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