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我在我的 Ubuntu 16.04 机器上添加了 docker snap 包

sudo snap install docker

现在，当我尝试使用它时，出现以下错误...

无法连接到 Docker 守护程序。docker 守护进程是否在这台主机上运行？

我安装了 Docker，但无法启动它。我还安装了 Docker Engine 和 Docker machine 但它们都不起作用

caner@vegan:~/hb-productupload/docker/dev$ systemctl status docker.service\n\xe2\x97\x8f docker.service - Docker Application Container Engine\n   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)\n   Active: failed (Result: exit-code) since Sal 2016-09-20 11:19:24 EEST; 1min 38s ago\n     Docs: https://docs.docker.com\n  Process: 4905 ExecStart=/usr/bin/dockerd -H fd:// (code=exited, status=1/FAILURE)\n Main PID: 4905 (code=exited, status=1/FAILURE)\n\nEyl 20 11:19:24 vegan systemd[1]: Starting Docker Application Container Engine...\nEyl 20 11:19:24 vegan dockerd[4905]: time="2016-09-20T11:19:24.023531856+03:00" level=fatal msg="Error starting daemon: pi\nEyl 20 11:19:24 vegan systemd[1]: docker.service: Main process exited, code=exited, …

我正在运行 16.04（distro=Ubuntu 16.04.1 LTS和 kernel= 4.4.0-45-generic）并通过 docker snap 安装了 docker。

snap install docker

这是我的快照列表。

# snap list
Name               Version   Rev  Developer  Notes
docker             1.11.2-9  56   canonical  -
snapstore-example  0.3       4    noise      -
ubuntu-core        16.04.1   423  canonical  -

但我无法启动 docker 守护进程。我做了什么

systemctl start snap.docker.dockerd.service

错误日志似乎已获得许可。

Nov 30 00:54:20 ubuntu-xenial systemd[1]: Started Service for snap application docker.dockerd.
Nov 30 00:54:20 ubuntu-xenial snap[19148]: grep: /proc/self/mountinfo: Permission denied
Nov 30 00:54:20 ubuntu-xenial snap[19148]: time="2016-11-30T00:54:20.708894420Z" level=fatal msg="can't create unix socket /var/run/docker.sock: permission …

我正在尝试在 Ubuntu 20.04 上安装 docker。apt-get尝试使用和安装 docker snap：

sudo apt-get install docker

输出：

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? …

我如何简单地拉动并运行hello-world？

nicholas@mordor:~$ \nnicholas@mordor:~$ \nnicholas@mordor:~$ snap list docker\nName    Version   Rev   Tracking       Publisher   Notes\ndocker  20.10.14  1779  latest/stable  canonical\xe2\x9c\x93  -\nnicholas@mordor:~$ \nnicholas@mordor:~$ sudo docker pull hello-world\nUsing default tag: latest\nCannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nnicholas@mordor:~$ \nnicholas@mordor:~$ lsb_release -a\nNo LSB modules are available.\nDistributor ID: Ubuntu\nDescription:    Ubuntu 22.04 LTS\nRelease:    22.04\nCodename:   jammy\nnicholas@mordor:~$ \nnicholas@mordor:~$ sudo systemctl start docker\nFailed to start docker.service: Unit docker.service not found.\nnicholas@mordor:~$ \nnicholas@mordor:~$ sudo systemctl status docker\nUnit docker.service could not be found.\nnicholas@mordor:~$ \n

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