Installl Virtualbox Guest Additions

install_vb_additions.sh

function install_vb_additions
{
    local VB_VERSION="$1";
    curl -O http://download.virtualbox.org/virtualbox/${VB_VERSION}/VBoxGuestAdditions_${VB_VERSION}.iso
    sudo mkdir /mnt/iso
    sudo mount -o loop VBoxGuestAdditions_${VB_VERSION}.iso /mnt/iso
    sudo yum install -y kernel-devel-`uname -r` gcc make perl bzip2
    cd /mnt/iso
    sudo ./VBoxLinuxAdditions.run  # Do the task
    cd
    sudo umount /mnt/iso && sudo rm -rf /mnt/iso
}