minikube不能在ubuntu20.04LTS上启动。由于GUEST_PROVISION退出

我正在尝试使用 docker 驱动程序在安装了 ubuntu 桌面 20.04 LTS 的 VM 中设置 minikube。

我遵循了此处的步骤，并考虑了 docker 驱动程序的限制（此处报告），这与运行时安全选项有关。当我尝试启动 minikube 时，我得到的错误是：无法启动主机：创建主机：创建：创建：准备 kic ssh：复制 pub 密钥。

这就是我为安装 minikube 的全新 VM 所做的工作。

1. 安装码头工人
2. 将我的用户添加到 docker 组，否则 minkube start 将失败，因为 dockerd 以 root 身份运行（即 docker 术语中的 Rootless 模式）。
3. 安装 kubectl（这不是必需的，但我选择了这个而不是 minikube 中的嵌入式 kubectl）
4. 安装 minikube

当我启动 minikube 时，这就是我得到的：

ubuntuDesktop:~$ minikube start
  minikube v1.16.0 on Ubuntu 20.04
?  Using the docker driver based on user configuration
  Starting control plane node minikube in cluster minikube
  Creating docker container (CPUs=2, Memory=4500MB) ...
?  Stopping node "minikube"  ...
  Powering off "minikube" via SSH ...
  Deleting "minikube" in docker ...
  StartHost failed, but will try again: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset051825440 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset051825440: no such file or directory
: exit status 1
  Creating docker container (CPUs=2, Memory=4500MB) ...
  Failed to start docker container. Running "minikube delete" may fix it: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1

?  Exiting due to GUEST_PROVISION: Failed to start host: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1

  If the above advice does not help, please let us know: 
  https://github.com/kubernetes/minikube/issues/new/choose

我怀疑该错误与 docker 驱动程序的安全设置问题有关，但这似乎就像一条狗在追尾巴：如果我不在 docker 中使用 rootless 模式并且我尝试使用 sudo 启动 minikube（所以该 docker 也可以使用特权用户启动），然后我得到了这个：

ubuntuDesktop:~$ sudo minikube start
[sudo] password for alberto: 
  minikube v1.16.0 on Ubuntu 20.04
?  Automatically selected the docker driver. Other choices: virtualbox, none
  The "docker" driver should not be used with root privileges.
  If you are running minikube within a VM, consider using --driver=none:
    https://minikube.sigs.k8s.io/docs/reference/drivers/none/

?  Exiting due to DRV_AS_ROOT: The "docker" driver should not be used with root privileges.

所以，或者我遗漏了什么，或者 minikube 根本无法与 docker 驱动程序一起使用，我对此表示怀疑。

这是我的环境信息：

ubuntuDesktop:~$ docker version
Client:
 Version:           19.03.11
 API version:       1.40
 Go version:        go1.13.12
 Git commit:        dd360c7
 Built:             Mon Jun  8 20:23:26 2020
 OS/Arch:           linux/amd64
 Experimental:      false

Server:
 Engine:
  Version:          19.03.11
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.13.12
  Git commit:       77e06fd
  Built:            Mon Jun  8 20:24:59 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

ubuntuDesktop:~$ minikube version
minikube version: v1.16.0
commit: 9f1e482427589ff8451c4723b6ba53bb9742fbb1-dirty

如果有人在 ubuntu 20.04 上使用 minikube 并且可以共享版本和驱动程序，我将不胜感激。使用 minikube 和 docker 站点中的信息，我不知道还需要检查什么才能使其正常工作。

回答

docker system prune

minikube delete

minikube start --driver=docker

?  Exiting due to GUEST_PROVISION: Failed to start host: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1

回答