Virtual machine disk space in Docker for Windows beta

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In my old docker container, created with the docker toolbox on Windows I was able to use the

docker-machine create -d virtualbox --virtualbox-disk-size 50000 default

command to create the container with more disk space as I have big images stored in it and "create another environment" next to the default.

Since the upgrade to the Docker 1.12.0 beta18 from the old Docker Toolbox I have no idea how to do that and I am facing the "low disk space" problem. Does anyone have a simple soln to this? Thanks in advance.

Oct 8, 2018 in Docker by Sophie may
• 9,530 points
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1 answer to this question.

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The MobyLinux Hyper-V machine is provisioned on first start of docker on your computer.

There is no way to change the original 60GB size by configuration, how is stated inside the C:\Program Files\Docker\Docker\resources\MobyLinux.ps1 (powershell script):

# Hard coded for now

$global:VhdSize = 60*1024*1024*1024  # 60GB

So, the solution was to change this line to

$global:VhdSize = 120*1024*1024*1024  # 120GB

This worked for me. You need however to reset your docker, causing it to provision again the hyper-v machine.

answered Oct 8, 2018 by Tyrion anex
• 8,270 points

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