ubuntu的grub正确为什么无法引导winXP

如题，ubuntu的grub经过详细检查并和其他类似机器对比结果正确为什么无法引导winXP，当重启进入GRUB后选择XP就闪一下，还是停在GRUB选择界面，但是UBUNTU可以正常登陆，
正常安装，安装过程中导入了XP内容，用的是8.1的

谁要是能解决这个问题，我就送上KISS一个，但是方法要尽量简单，什么重装GRUB之类的不行，系统已经又重装了一遍，结果一样，

能回答这个问题的看来还真要个资深的！？难道要我失望不成

请问楼主，能把 menu.lst 贴上来吗？

# 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=4a7e1e3c-6216-45c6-9b8e-b1bb1b576637 ro locale=zh_CN

## default grub root device
## e.g. groot=(hd0,0)
# groot=eb9e2765-3a52-4d98-a6a1-8d46b69fc37e

## 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 2.6.27-7-generic
uuid                eb9e2765-3a52-4d98-a6a1-8d46b69fc37e
kernel                /vmlinuz-2.6.27-7-generic root=UUID=4a7e1e3c-6216-45c6-9b8e-b1bb1b576637 ro locale=zh_CN quiet splash  
initrd                /initrd.img-2.6.27-7-generic
quiet

title                Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)
uuid                eb9e2765-3a52-4d98-a6a1-8d46b69fc37e
kernel                /vmlinuz-2.6.27-7-generic root=UUID=4a7e1e3c-6216-45c6-9b8e-b1bb1b576637 ro locale=zh_CN  single
initrd                /initrd.img-2.6.27-7-generic

title                Ubuntu 8.10, memtest86+
uuid                eb9e2765-3a52-4d98-a6a1-8d46b69fc37e
kernel                /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

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x624aa2e0

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1280    10281568+   c  W95 FAT32 (LBA)
/dev/sda2            1281        9729    67866592+   f  W95 Ext'd (LBA)
/dev/sda5            1281        3571    18402426    7  HPFS/NTFS
/dev/sda6            3572   
Mo Cuishle  0:06:55
      6121    20482843+   b  W95 FAT32
/dev/sda7            6122        6133       96358+  83  Linux
/dev/sda8            6134        6257      995998+  82  Linux swap / Solaris
/dev/sda9            6258        9729    27888808+  83  Linux

Disk /dev/sdb: 1054 MB, 1054605312 bytes
23 heads, 54 sectors/track, 1658 cylinders
Units = cylinders of 1242 * 512 = 635904 bytes
Disk identifier: 0x02bfca41

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        1659     1029772+   b  W95

中间的 Mo Cuishle 0:06:55是多余信息，

从menu.lst文件中看都很正常，我怀疑是C盘引导扇区（不是MBR）被破坏。但不能完全肯定。
不管如何，你现在最好把重要数据备份出来，而且是双份。

不知道你看过一篇攻击ubuntu的文章没有，针对你的这种情况我也遇上过，最终不但ub启动不起来，xp也启动不起来，我跟你一样装的是深度的8.1
攻击的那个文章说到过这个情况。看这篇 《猛文:Greg Kroah-Hartman评Ubuntu Linux发行版》，就我本人遇到的情况来看，这篇文章说的不无道理，可能我的猜想有点偏激，不过没有合理的解释呀。
http://www.cnbeta.com/articles/65893.htm
我的做法是重修mbr，重装深度9.0F，等待ub的8.1发布再重新安装。我的ub里没有什么资料。资料全放在网盘上了。

[ 本帖最后由 editwork 于 2008-11-4 10:28 编辑 ]

看来ubuntu确实存在一些问题的，尤其是一些linux上通用的东西被修改确实很令人费解，看来要换别 的版本或者别的系列了，