1. Change to root User Bash su - ## OR ## sudo -i 2. Install Fedora or RHEL Repo Files Bash cd /etc/yum.repos.d/ ## Fedora 26/25/24/23/22/21/20/19/18/17/16 users wget http://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo ## CentOS 7.4/6.9 and Red Hat (RHEL) 7.4/6.9 users wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo 3. Update latest packages and check your kernel version Update packages Bash ## Fedora 26/25/24/23/22 ## dnf update ## Fedora 21/20/19/18/17/16 and CentOS/RHEL 7/6/5 ## yum update While executing yum update if you get any dependency errorfor glibc use the following to resolve it: rpm -qa | grep glibc You may see duplicates for either glibc or glibc common. There might be a common version in between any two packages of glibc and glibc-common. Remove the package which has uncommon version. You can also check for duplicates with the following command: yum list --showduplicates glibc rpm -e glibc-common-2.17-196.el7 rpm -qa kernel |...