Docker tries to mkdir the folder that I mount

Question

Why is Docker trying to create the folder that I'm mounting? If I cd to C:\Users\szx\Projects

docker run --rm -it -v "${PWD}:/src" ubuntu /bin/bash

This command exits the following error:

C:\Program Files\Docker Toolbox\docker.exe: Error response from daemon: error while creating mount source path '/c/Users/szx/Projects': mkdir /c/Users/szx/Projects: file exists.

I'm using Docker Toolbox on Windows 10 Home.

Answer 1

Make sure the folder is being shared with the docker embedded VM. This differs with the various types of docker for desktop installs. With toolbox, I believe you can find the shared folders in the VirtualBox configuration. You should also note that these directories are case sensitive. One way to debug is to try:

docker run --rm -it -v "/:/host" ubuntu /bin/bash

And see what the filesystem looks like under "/host".

Answer 2

I faced this error when another running container was already using folder that is being mounted in docker run command. Please check for the same & if not needed then stop the container. Best solution is to use volume by using following command -

docker volume create

then Mount this created volume if required to be used by multiple containers..

Answer 3

I got this error after changing my Windows password. I had to go into Docker settings and do "Reset credentials" under "Shared Drives", then restart Docker.

Answer 4

Did you use this container before? You could try to remove all the docker-volumes before re-executing your command.

docker volume rm `(docker volume ls -qf dangling=true)`

I tried your command locally (MacOS) without any error.