If you have minimal Centos OS installation you should install perl and wget and screen packages, also disable selinux protection:
yum install wget perl screen
setenforce 0
sed -i s/SELINUX=enforcing/SELINUX=disabled/g /etc/selinux/config
screen
cd && wget -N http://httpupdate.cpanel.net/latest && chmod +x ./latest && ./latest
And should wait WHM/cPanel installation about 2 hours.