Modify the grub startup sequence

CD/boot/GRUB/
Sudo Emacs menu. lst

# Menu. lst-see: grub (8), info grub, update-grub (8)
# Grub-install (8), grub-floppy (8 ),
# Grub-md5-crypt,/usr/share/doc/GRUB
# And/usr/share/doc/grub-DOC /.

# Default num
# Set the default entry to the entry number num. Numbering starts from 0, and
# The entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# Is the entry saved with the command 'savedefault '.
# Warning: if you are using dmraid do not use 'savedefault' or your
# Array will desync and will not let you boot your system.
Default 0<==============Change this!

# Timeout Sec
# Set a timeout, in sec seconds, before automatically booting the default entry
# (Normally the first entry defined ).
Timeout 10

# Hiddenmenu
# Hides the menu by default (Press ESC to see the menu)
# Hiddenmenu

# Pretty colours
# Color cyan/blue white/blue

# Password ['-- md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# Control (menu entry editor and command-line) and entries protected by
# Command 'lock'
# E.g. Password topsecret
# Password -- MD5 $1 $ glhu0/$ aw78khk11_v3p2b2znuoe/
# Password topsecret

#
# Examples
#
# Title Windows 95/98/NT/2000
# Root (hd0, 0)
# Makeactive
# Chainloader + 1
#
# Title Linux
# Root (hd0, 1)
# Kernel/vmlinuz root =/dev/hda2 Ro
#

#
# Put static boot stanzas before and/or after automagic kernel list

### Begin automagic kernels list
# Lines between the automagic kernels list markers will be modified
# By the Debian Update-grub script failed t for the default options below

# Do not uncomment them, just edit them to your needs

#### Start default options ##
# Default kernel options
# Default kernel options for automagic boot options
# If you want special options for specific kernels use kopt_x_y_z
# Where x. y. Z is kernel version. Minor versions can be omitted.
# E.g. kopt = root =/dev/hda1 Ro
# Kopt_2_6_8 = root =/dev/hdc1 Ro
# Kopt_2_6_8_2_686 = root =/dev/hdc2 Ro
# Kopt = root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn

# Default grub root device
# E.g. Groot = (hd0, 0)
# Groot = 41cca974-8634-42ff-8c6e-bc148ea757a7

# Shocould Update-grub create alternative automagic boot options
# E.g. Alternative = true
# Alternative = false
# Alternative = true

# Shocould Update-grub lock alternative automagic boot options
# E.g. lockalternative = true
# Lockalternative = false
# Lockalternative = false

# Additional options to use with the default boot option, but not with
# Alternatives
# E.g. defoptions = VGA = 791 resume =/dev/hda5
# Defoptions = quiet splash

# Shocould Update-grub lock old automagic boot options
# E.g. lockold = false
# Lockold = true
# Lockold = false

# Xen hypervisor options to use with the default xen boot Option
# Xenhopt =

# Xen Linux kernel options to use with the default xen boot Option
# Xenkopt = console = tty0

# Altoption boot targets Option
# Multiple altoptions lines are allowed
# E.g. altoptions = (extra menu suffix) Extra boot options
# Altoptions = (recovery) single
# Altoptions = (recovery mode) single

# Controls how many kernels shoshould be put into the menu. lst
# Only counts the first occurence of a kernel, not
# Alternative kernel options
# E.g. howtasks = all
# Howtasks = 7
# Howtasks = all

# Shocould Update-grub create memtest86 boot Option
# E.g. memtest86 = true
# Memtest86 = false
# Memtest86 = true

# Shocould Update-grub adjust the value of the default booted System
# Can be true or false
# Updatedefaultentry = false

# Shocould Update-grub add savedefault to the default options
# Can be true or false
# Savedefault = false

#### End default options ##

Title Ubuntu 8.10, kernel 2.6.27-15-generic
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-15-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn quiet splash
Initrd/boot/initrd. img-2.6.27-15-generic
Quiet

Title Ubuntu 8.10, kernel 2.6.27-15-generic (recovery mode)
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-15-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn single
Initrd/boot/initrd. img-2.6.27-15-generic

Title Ubuntu 8.10, kernel 2.6.27-14-generic
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-14-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn quiet splash
Initrd/boot/initrd. img-2.6.27-14-generic
Quiet

Title Ubuntu 8.10, kernel 2.6.27-14-generic (recovery mode)
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-14-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn single
Initrd/boot/initrd. img-2.6.27-14-generic

Title Ubuntu 8.10, kernel 2.6.27-13-generic
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-13-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn quiet splash
Initrd/boot/initrd. img-2.6.27-13-generic
Quiet

Title Ubuntu 8.10, kernel 2.6.27-13-generic (recovery mode)
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-13-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn single
Initrd/boot/initrd. img-2.6.27-13-generic

Title Ubuntu 8.10, kernel 2.6.27-7-generic
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-7-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn quiet splash
Initrd/boot/initrd. img-2.6.27-7-generic
Quiet

Title Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/vmlinuz-2.6.27-7-generic root = UUID = 41cca974-8634-42ff-8c6e-bc148ea757a7 Ro locale = zh_cn single
Initrd/boot/initrd. img-2.6.27-7-generic

Title Ubuntu 8.10, memtest86 +
UUID 41cca974-8634-42ff-8c6e-bc148ea757a7
Kernel/boot/memtest86 +. Bin
Quiet

### End Debian automagic kernels list

# This is a divider, added to separate the menu items below from the Debian
# Ones.
Title other operating systems:
Root

# This entry automatically added by the Debian installer for a non-Linux OS
# On/dev/sda1
Title Microsoft Windows XP Professional
Root (hd0, 0)
Savedefault
Makeactive
Chainloader + 1

From: http://hi.baidu.com/hy6356/blog/item/5e61130328186e054afb5130.html