Create ext4 partition

1. Upgrade your system: yum update 
2. Format the partition: mkfs.ext4 /dev/sdxY (replace sdxY with the device to format (e.g. sda1))
3. Mount the partition
4. Add an entry to /etc/fstab, using the filesystem 'type' ext4 

 df -T | awk '{print $1,$2,$NF}' | grep "^/dev"