Guest Additions problem in VirtualBox

Step-up:

Host: Windows 7

Guest: Ubuntu 14.04

Virtual Box: 4.3.26

Note: If you are using the latest version of VirtualBox, make sure that the running Ubuntu version has the required package (virtualbox-dkms). Like in my case Ubuntu 14.04 (trusty) is not supported VirtualBox 5.0.

http://packages.ubuntu.com/search?keywords=virtualbox-dkms+&searchon=names

Step 1. Check Running kernel and header version, both should be matched.

uname -r && dpkg — get-selections | grep linux-headers

If both commands show different version, running the following command

sudo apt-get install linux-headers-$(uname-r)

Step 2. Mount Guest Additions CD. In Windows path will be C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions . You can also download the Guest Addition image from Guest Additions .

Step 3. Mount Guest Additions ISO in the guest system.

In Windows : VirtualBox → Settings → Storage → CD /DVD drive → chose virtual host CD — -> Navigate to (C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions) and select.

Or if you downloaded image on Ubuntu:

#sudo mount VBoxGuestAdditions_X.iso /mnt ; cd /mnt/VBOXADDITION_X/; ./VBoxLinuxAdditions.run

Step 4. Reboot your Guest system.

Special Note: Might be you need to run extra steps depends on your system.