File: //etc/grub.conf
default=0
timeout=0
title CentOS Linux (3.10.0-1127.19.1.el7.x86_64) 7 (Core)
root (hd0)
kernel /boot/vmlinuz-3.10.0-1127.19.1.el7.x86_64 ro root=UUID=6cd50e51-cfc6-40b9-9ec5-f32fa2e4ff02 console=hvc0 LANG=en_US.UTF-8
initrd /boot/initramfs-3.10.0-1127.19.1.el7.x86_64.img
title CentOS Linux 7 (3.10.0-1127.el7.x86_64)
root (hd0)
kernel /boot/vmlinuz-3.10.0-1127.el7.x86_64 ro root=UUID=6cd50e51-cfc6-40b9-9ec5-f32fa2e4ff02 console=hvc0 LANG=en_US.UTF-8
initrd /boot/initramfs-3.10.0-1127.el7.x86_64.img