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用wubi安装的ubuntu在整个硬盘上应该有几个menu.lst文件?
我的怎么一共有三个呀?
第一个:位于..\ubuntu\winboot\ 内容如下
debug off
hiddenmenu
default 0
timeout 0
fallback 1

title find /ubuntu/disks/boot/grub/menu.lst
find --set-root --ignore-floppies /ubuntu/disks/boot/grub/menu.lst
configfile /ubuntu/disks/boot/grub/menu.lst

title find /ubuntu/install/boot/grub/menu.lst
find --set-root --ignore-floppies /ubuntu/install/boot/grub/menu.lst
configfile /ubuntu/install/boot/grub/menu.lst

title find /menu.lst
find --set-root --ignore-floppies /menu.lst
configfile /menu.lst

title find /boot/grub/menu.lst
fallback 2
find --set-root --ignore-floppies /boot/grub/menu.lst
configfile /boot/grub/menu.lst

title find /grub/menu.lst
fallback 3
find --set-root --ignore-floppies /grub/menu.lst
configfile /grub/menu.lst

title commandline
commandline

title reboot
reboot

title halt
halt
第二个:位于..\ubuntu\disks\boot\grub\内容如下:
# 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

## 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 the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# 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 except 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=42BA-42BA loop=/ubuntu/disks/root.disk ro

## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,5)/ubuntu/disks

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should 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 the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should 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 should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu 8.04.1, kernel 2.6.24-16-generic
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.24-16-generic

title Ubuntu 8.04.1, kernel 2.6.24-16-generic (recovery mode)
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.24-16-generic

title Ubuntu 8.04.1, kernel 2.6.24-12-generic
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.24-12-generic

title Ubuntu 8.04.1, kernel 2.6.24-12-generic (recovery mode)
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.24-12-generic

title Ubuntu 8.04.1, memtest86+
root (hd0,5)/ubuntu/disks
kernel /boot/memtest86+.bin

### 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
chainloader +1
还有一个:位于..\ubuntu\disks\boot\grub\不过这个文件名是menu.lst~内容如下:
# 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

## 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 the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# 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 except 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=42BA-42BA loop=/ubuntu/disks/root.disk ro

## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,5)/ubuntu/disks

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should 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 the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should 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 should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu hardy (development branch), kernel 2.6.24-12-generic
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.24-12-generic

title Ubuntu hardy (development branch), kernel 2.6.24-12-generic (recovery mode)
root (hd0,5)/ubuntu/disks
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.24-12-generic

title Ubuntu hardy (development branch), memtest86+
root (hd0,5)/ubuntu/disks
kernel /boot/memtest86+.bin

### 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
chainloader +1





[/b]

第一个:位于..\ubuntu\winboot\ 内容如下
#关闭调试
debug off
#隐藏菜单，加载时不显示菜单内容
hiddenmenu
#默认加载第1个菜单
default 0
#加载菜单时等待时间：0秒
timeout 0
#如果加载菜单失败，则加载第2个菜单
fallback 1

#菜单标题
title find /ubuntu/disks/boot/grub/menu.lst
#搜索目录“/ubuntu/disks/boot/grub/”下的菜单文件menu.lst
find --set-root --ignore-floppies /ubuntu/disks/boot/grub/menu.lst
加载菜单文件
configfile /ubuntu/disks/boot/grub/menu.lst

#菜单标题
title find /ubuntu/install/boot/grub/menu.lst
#搜索目录“/ubuntu/install/boot/grub/”下的菜单文件menu.lst
find --set-root --ignore-floppies /ubuntu/install/boot/grub/menu.lst
#加载菜单文件
configfile /ubuntu/install/boot/grub/menu.lst

#菜单标题
title find /menu.lst
#搜索目录“/”下的菜单文件menu.lst
find --set-root --ignore-floppies /menu.lst
#加载菜单文件
configfile /menu.lst

#菜单标题
title find /boot/grub/menu.lst
#如果加载失败，则加载第3个菜单的内容
fallback 2
#搜索目录”/boot/grub/“下的菜单文件menu.lst
find --set-root --ignore-floppies /boot/grub/menu.lst
#加载菜单文件
configfile /boot/grub/menu.lst

#菜单标题
title find /grub/menu.lst
#如果加载失败，则加载第4个菜单的内容
fallback 3
#搜索目录”/grub/“下的菜单文件menu.lst
find --set-root --ignore-floppies /grub/menu.lst
#加载菜单文件
configfile /grub/menu.lst

菜单标题：命令行
title commandline
commandline

菜单标题：重启
title reboot
reboot

菜单标题：关机
title halt
halt

第二个:位于..\ubuntu\disks\boot\grub\内容如下:
# 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

## 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 the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# 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 except 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=42BA-42BA loop=/ubuntu/disks/root.disk ro

## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,5)/ubuntu/disks

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should 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 the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should 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 should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

菜单标题
title Ubuntu 8.04.1, kernel 2.6.24-16-generic
#确定启动分区
root (hd0,5)/ubuntu/disks
#加载内核文件和启动参数
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro quiet splash
#加载初始化文件
initrd /boot/initrd.img-2.6.24-16-generic

菜单标题
title Ubuntu 8.04.1, kernel 2.6.24-16-generic (recovery mode)
#确定启动分区
root (hd0,5)/ubuntu/disks
#加载内核文件和启动参数
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro single
#加载初始化文件
initrd /boot/initrd.img-2.6.24-16-generic

菜单标题
title Ubuntu 8.04.1, kernel 2.6.24-12-generic
#确定启动分区
root (hd0,5)/ubuntu/disks
#加载内核文件和启动参数
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro quiet splash
#加载初始化文件
initrd /boot/initrd.img-2.6.24-12-generic

菜单标题
title Ubuntu 8.04.1, kernel 2.6.24-12-generic (recovery mode)
#确定启动分区
root (hd0,5)/ubuntu/disks
#加载内核文件和启动参数
kernel /boot/vmlinuz-2.6.24-12-generic root=UUID=42BA-42BA loop=/ubuntu/disks/root.disk ro single
#加载初始化文件
initrd /boot/initrd.img-2.6.24-12-generic

#菜单标题
title Ubuntu 8.04.1, memtest86+
#确定启动分区
root (hd0,5)/ubuntu/disks
#加载memtest86+.bin，测试内存
kernel /boot/memtest86+.bin

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
#菜单标题：引导其他的操作系统，此处只是一个案例，没有实质内容
title Other operating systems:
root

# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
#菜单标题：引导windows xp
title Microsoft Windows XP Professional
#确定启动分区
root (hd0,0)
savedefault
#加载windows xp的引导器ntldr
chainloader +1

第3个:位于..\ubuntu\disks\boot\grub\, 文件menu.lst~是第2个菜单文件的备份

wubi可以使用多个菜单文件menu.lst，也可以只有一个菜单文件menu.lst，需要配置grub for dos的菜单文件，建议学习使用grub for dos。

谢谢楼主,正在学习中!