I have a Macbook pro and a 4TB external Hard drive. Now I want to use ubuntu and windows10 running on the external hard drive in a manner where I get 3 TB for random storage purposes and 500 GB for Linux and 500 GB.So I want to know whether I can use a single hard drive to load BOTH windows 10 and ubuntu and still 3TB more space for my use... do I have to partition the hard drive into three different parts.. I need to use virtual box where windows and ubuntu are running on the external drive and I should be able to use the remaining space..thanks in advance.

  • You shouldn't need to partition the external HD at all. Virtualbox wants use it's own virtual drive files on whatever filesystem the HD has. – user535733 May 11 '17 at 22:59
  • Your question has a lot of ambiguity in it. You may wish to review it with "readers eyes" and then make some minor edits. You want to run Virtualbox to run a Windows guest OS, and a Ubuntu guest OS, yes? Know that VB creates a folder in your /home/username called Virtualbox VM's, and it contains the VDI disk images of your guest OS's. I don't know if VB will let you easily relocate that folder or its VDI's. – heynnema May 12 '17 at 1:41

Virtualbox actually doesn't need a specific file system that you need to format your external HDD. You can just format it as Ubuntu may read the HDD and then simply create a new space on external HDD using Virtualbox's application.


You may format your HDD to HFS, because FAT filesystem has a max space support about 4 GB. You can't store 500 GB virtual disk on this filesystem. However on HFS you can store since it supports large amount of size.

  • so I just set the same HDD for both windows and ubuntu in the virtual box without needing to partition the drive......and if I do this I will only be able to use ubuntu and windows in the virtual box if I connect the hard disk. – A Nerd Has No Name May 11 '17 at 23:08
  • Virtualbox creates virtual files on your external HDD. It doesn't create a partition, so you could your External HDD also as f.e a backup machine. – Ege Sucu May 11 '17 at 23:12
  • so .... the virtualbox will work in its own file system inside the HDD and I can keep using the same HDD for different purposes as well? – A Nerd Has No Name May 11 '17 at 23:15
  • @HELLDOZER That was what I'm trying to say. – Ege Sucu May 11 '17 at 23:16
  • cool man thanks a bunch....that is what I have been trying to understand..... I did not know whether I should partition the drive or anything like that..... I appreciate you sharing ur time and knowledge :-) – A Nerd Has No Name May 11 '17 at 23:20

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