RAC Attack - Oracle Cluster Database at Home/RAC Attack 12c/Install VirtualBox Addons

  Make the VirtualBox guest additions available to the OS by clicking Devices->Install Guest Additions. 

 Mount the virtual CD-Rom created by VirtualBox. 

[root@collabn1 ~]# mount /dev/cdrom /media/cdrom mount: block device /dev/sr0 is write-protected, mounting read-only

 Install the VirtualBox Guest Additions. The error related to the step Installing the Window System drivers is ok to ignore, it will not appear on newest VBox versions. 

[root@collabn1 ~]# sh /media/cdrom/VBoxLinuxAdditions.run Verifying archive integrity... All good. Uncompressing VirtualBox 4.2.14 Guest Additions for Linux............ VirtualBox Guest Additions installer Removing installed version 4.2.14 of VirtualBox Guest Additions... Copying additional installer modules ...  Installing additional modules ... Removing existing VirtualBox non-DKMS kernel modules      [  OK  ] Building the VirtualBox Guest Additions kernel modules The headers for the current running kernel were not found. If the following module compilation fails then this could be the reason. The missing package can be probably installed with yum install kernel-uek-devel-2.6.39-400.17.1.el6uek.x86_64 Building the main Guest Additions module                  [  OK  ] Building the shared folder support module                 [  OK  ] Building the OpenGL support module                        [  OK  ] Doing non-kernel setup of the Guest Additions             [  OK  ] You should restart your guest to make sure the new modules are actually used Installing the Window System drivers                      [FAILED] (Could not find the X.Org or XFree86 Window System.)

 Dismount the cdrom. 

[root@collabn1 ~]# umount /media/cdrom 