General Information
Updating (installing) new kernels.
View current kernel version
uname -r
Show currently installed and version(s) available
yum clean all yum list kernel
Two methods:
1) Update kernel using yum (preferred)
yum update kernel
2) Download and install kernel manually
yumdownloader kernel
rpm -ivh kernel-3.10.0-229.1.2.el7.x86_64
View kernel files (vmlinuz)
cd /boot ls -l