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I have virtualbox 4.3.12 extension pack installed on a windows 7 computer and am running a virtual machine with Ubuntu 12.04 on it. I have an external hard drive that I would like to access within the virtual machine but whenever I have it plugged in and the virtual machine is turned on, it seems to just unmount the hard drive from windows and not show it in Ubuntu. I have tried adding the USB device filter in virtualbox and the hard drive is listed under devices but still doesn't show up in the virtual machine. I have also tried unmounting it from windows before starting the virtual machine. Nothing seems to work. Any help is appreciated. Thanks

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Have you installed the Guest Additions? – MariusMatutiae May 22 '14 at 10:30
    
If you haven't already, install Guest Additions for Ubuntu. – Vinayak May 22 '14 at 10:45
    
YMMV, but I just verified that I can mount USB drives in a Lubuntu guest that does not have guest additions installed. Are you making sure to select your external drive in Devices > USB Devices? – Pockets May 22 '14 at 10:54
    
I have it selected in Devices but there doesn't seem to be an option to install guest additions. – user3180431 May 23 '14 at 0:16

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