不同机器可能由于安装的磁盘分区不同而内容有所变化，不过基本信息大同小异，大家用得着的可以作为参考：
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,4)
# kernel /boot/vmlinuz-version ro root=/dev/sda4
# initrd /boot/initrd-[generic-]version.img
#boot=/dev/sda
default=1
timeout=5
splashimage=(hd0,4)/boot/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.32-279.el6.i686)
root (hd0,4)
kernel /boot/vmlinuz-2.6.32-279.el6.i686 ro root=UUID=34b3b0c1-890f-4983-869d-1bf0f263195c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=128M KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
initrd /boot/initramfs-2.6.32-279.el6.i686.img
title Other
rootnoverify (hd0,1)
chainloader +1