Am using Redhat Enterprise Linux 7.3 with kernel version of 3.10.0-514.el7 below mentioned kernel with Redhat Enterprise Linux on top of Oracle Virtual box 5.1.10, the guest OS display is not fit to my screen, I tried Insert Guest Additions CD, and no result, see the below screenshot.How can I solve this issue?
RHEL: Adjust Screen Resolution of Virtual Box
rhel;virtualbox;virtual machine
Login to a root shell. The installation of guest additions will require the building of kernel modules. So you will need to install DKMS (Dynamic Kernel Module Support) that is used to simplify kernel upgrades (If DKMS is not used the Guest Additions will need to be reinstalled after every kernel update) and  kernel-devel packages using these commands:yum updateyum install dkmsyum install kernel-devel gccyum install kernel-devel-$(uname -r)then you can install guest additions from the device tool.