Docker-Toolbox & Win7 | permission denied on Volume-Select

Question

I use Win7 with DockerToolbox 18.03. and I have somhow trouble with getting volumes running, so I started trying it with Kitematic:

I run a container from mysql and in the option "volumes" I see the entry Dockerfolder: /var/lib/mysql .. and the Localfolder: No Fodler .. when I try to change it to whatever, I get a Error: Invalid directory - Please make sure the directory exists and you can read/write to it.

But how would I allow that? btw. the directory definetly exists, so it has to be somewhat permission-thing?

The default-path is there ~\Documents\Kitematic\mysql\var\lib .. but I can't change that(?)

I have googled and found some older issues, but they assume do downgrade dockerToolbox to v1.xx .. that was 2017.. now there is v19.x .. I don't think downgrade would be helpful here, would it?

Answer 1

I finally found the answer. On win7 and DockerToolbos it is not possible to have volumes declared outside your local User-Directory.

https://github.com/docker/kitematic/issues/2738