Windows + Boot2Docker, How to add D:\ drive to be accessible from within docker? [duplicate]

Question

Basically, when you open boot2docker app, inside it you can cd /c/Users, right? Now I want to be able to cd /d to access my D:\ directory.

I don't know squat about VM so please explain like you would to a 5-years old.

This is in a way related to this other question on how to move docker images to another drive. The whole idea is to free up the system disk since docker stuff takes so much space over time.

Answer 1

Answer

In windows CMD(only once):

VBoxManage sharedfolder add "boot2docker-vm" --name "d-share" --hostpath "D:\"

In the Boot2Docker VM terminal(every time you boot):

mount -t vboxsf -o uid=1000,gid=50 d-share /d

If you always want to mount your D:\ to /d you can instead add the following entry to /etc/fstab (if you can edit fstab in boot2docker, not sure on this):

d-share   /d   vboxsf   uid=1000,gid=50  0   0

How I came about this answer, as it may change in the future:

From the Boot2Docker README.md in their git repo

Alternatively, Boot2Docker includes the VirtualBox Guest Additions built in for the express purpose of using VirtualBox folder sharing.

The first of the following share names that exists (if any) will be automatically mounted at the location specified:

1. Users share at /Users
2. /Users share at /Users
3. c/Users share at /c/Users
4. /c/Users share at /c/Users
5. c:/Users share at /c/Users

If some other path or share is desired, it can be mounted at run time by doing something like:

$ mount -t vboxsf -o uid=1000,gid=50 your-other-share-name /some/mount/location

There's your command structure.

From VirtualBox Guest Additions Docs on Shared Folders

From the command line, you can create shared folders using VBoxManage, as follows:

VBoxManage sharedfolder add "VM name" --name "sharename" --hostpath "C:\test"

and

To mount a shared folder during boot, add the following entry to /etc/fstab:

sharename   mountpoint   vboxsf   defaults  0   0

The default boot2docker vm name is boot2docker-vm (imaginative) and you want to mount the D directory D:\. Lets call our share d-share.

Possible Dupe:

Can be found here, with a slightly differently explained answer to almost the same question.