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文件搞丢了，哪位兄弟传个上来，谢谢啦！

# 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 2

## 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=be1f00d0-4a82-42de-b6fe-acae072be4b2 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=be1f00d0-4a82-42de-b6fe-acae072be4b2

## 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 8.10, kernel 2.6.27-8-generic
uuid be1f00d0-4a82-42de-b6fe-acae072be4b2
kernel /boot/vmlinuz-2.6.27-8-generic root=UUID=be1f00d0-4a82-42de-b6fe-acae072be4b2 ro quiet splash
initrd /boot/initrd.img-2.6.27-8-generic
quiet


title Ubuntu 8.10, kernel 2.6.27-8-generic (recovery mode)
uuid be1f00d0-4a82-42de-b6fe-acae072be4b2
kernel /boot/vmlinuz-2.6.27-8-generic root=UUID=be1f00d0-4a82-42de-b6fe-acae072be4b2 ro single
initrd /boot/initrd.img-2.6.27-8-generic

### END DEBIAN AUTOMAGIC KERNELS LIST



# 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


# This entry automatically added by the Debian installer for an existing
# linux installation on /dev/sda2.
#title openSUSE 11.0 - 2.6.25.16-0.1 (pae) (on /dev/sda2)
root (hd0,1)
kernel /boot/vmlinuz-2.6.25.16-0.1-pae root=/dev/disk/by-id/scsi-SATA_WDC_WD800BB-00J_WD-WMAM9HH76671-part2 resume=/dev/sda3 splash=silent showopts
initrd /boot/initrd-2.6.25.16-0.1-pae
savedefault
boot


# This entry automatically added by the Debian installer for an existing
# linux installation on /dev/sda2.
#title Failsafe -- openSUSE 11.0 - 2.6.25.16-0.1 (on /dev/sda2)
root (hd0,1)
kernel /boot/vmlinuz-2.6.25.16-0.1-pae root=/dev/disk/by-id/scsi-SATA_WDC_WD800BB-00J_WD-WMAM9HH76671-part2 showopts ide=nodma apm=off acpi=off noresume nosmp noapic maxcpus=0 edd=off x11failsafe vga=0x318
initrd /boot/initrd-2.6.25.16-0.1-pae
savedefault
boot
title Ubuntu 8.10 LiveCD
root (hd0,0)
kernel /vmlinuz boot=casper iso-scan/filename=/ubuntu-8.04-desktop-i386.iso quiet splash ro locale=zh_CN.UTF-8
initrd /initrd.gz
boot
title Ubuntu
root (hd0,1)
configfile /boot/grub/menu.lst

#title Ubuntu 8.10 LiveCD
root (hd0,0)
kernel /vmlinuz boot=casper iso-scan/filename=/hiweed-desktop_2.0rc_i386.iso quiet splash ro locale=zh_CN.UTF-8
initrd /initrd.gz
boot

UUID不一样，系统进不去的

可以用livecd进入系统查看UUID(ls -l /dev/disk/by-uuid)修改一下menu.lst就可以了。或者将menu.lst中的root=******换成/dev/sdaX (X为系统所在分区号）即可！