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I am trying to share a folder on virtualbox with a guest mac, I tried to share the folder through virtualbox but it doesn't show up in mac, Also I tried sharing a folder on mac and access it from ubuntu also failed

So I need someone who did this before with success to tell me how to correctly do this.

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Stupid question to check the obvious... did you install Guest Additions on the guest? – luri Jan 24 '11 at 9:07
Not its not stupid, yes I installed Guest Additions on the guest go look it up on Google every one is having trouble with this guest additions isn't compatible with snow leopard ... if you don't know you don't have to comment and disrespect people – bhappy Jan 25 '11 at 5:21

Mount manually your folder, open a terminal and type:

sudo mkdir /media/vbox
sudo mount -t vboxsf "yoursharedfolder" /media/vbox

If you want it mounted automatically every start, run:

gksu gedit /etc/rc.local

In the text editor window that opens, and add this as the last line:

mount -t vboxsf "yoursharedfolder" /media/vbox
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Thanks Covarrubias I'll try and get back to you – bhappy Jan 25 '11 at 5:21
I suppose it should also work in fstab. – enzotib Sep 11 '11 at 7:36
I don't know with what to replace "yoursharedfolder". I want to share my folder /home/tresipunt/Descargas but how is it called inside the mac guest?? thks – vallllll Dec 12 '11 at 17:06
This is a description of how to access VirtualBox shared folders on a Linux guest. But the question is about a Mac guest. So this doesn't answer the question. – Croad Langshan Sep 30 '12 at 14:30

Had the same problem - solved it by installing a the "samba" server on Linux. Since then I am flawlessly able to access my folders. (Ok, it would be nicer to directly use VB's shared folder option ...)

System: Debian 6.0 Virtualbox: 4.1 Mac OS X: 10.6.6

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As per

  1. Set up Samba on your Ubuntu host file sharing (it should be easy now, I use edited smb.conf but I am sure there is a much easier way now).

  2. On you mac guest, go>connect to network and enter smb://ip_of_your_host and then connect (either using guest or login/pass - depends on your Samba setup)

  3. Create an alias na put it on desktop for easy use.

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