My issues started when I tried to install CentOs 7 in Oracle VirtualBox(4.3.12) on a Windows 7 x64 host.
4.3.12 does not support CentOs 7 so you must upgrade.
I loaded 4.3.14 from the Oracle site and installed it.
First I noticed that the directory structure had changed (Oracle VM/VirtualBox instead of Oracle/VirtualBox)
This broke all the GuestAdditionsCD connections.
Do not use 4.3.14, this release does not work.
It will install, but it fails to start any VM (as you can see in this thread).
look for the test release of 4.3.15
The link is on this site:
https://forums.virtualbox.org/viewtopic.php?f=6&t=62615Here is how to fix the issues for both VirtualBox and CentOs 7:
Or go directly to:
https://www.virtualbox.org/download/tes ... 86-Win.exeOnce installed - copy the GuestAdditions .iso from Oracle VM/VirtualBox to Oracle/VirtualBox.
This will fix the links.
Next Install (double click) the 4.3.14 extensionPak. (I had to start with VirtualBox.exe - as the link seems to be broken).
Virtualbox should now be OK and the VMs should run.
Next load the dkms for release 7 (release 6 did not work).
sudo rpm -Uvh
http://dl.fedoraproject.org/pub/epel/be ... noarch.rpmsudo yum install dkms
sudo mount /dev/cdrom /media/cdrom
cd /media/cdrom/
sudo ./VBoxLinuxAdditions.run
I have tested 4.3.15 on the following:
Windows 8 pro (x32 and x64)
openSUSE 13.1
Ubuntu 12.04 and 14.04 (desktop and server)
Windows Server 2003, 2008, 2012
CentOs 6.5 and 7
Oracle Linux 6 and 7
I had a small issue with Fedora 20, while it works, it would not shut down properly.
So I had to abort after the power down message - no issue restarting after this.