[问题]双硬盘双系统，无法进入windowsxp

[habunt]

原有一块希捷sata160G硬盘（sdb）,安装windowsxp，后来加装一块昆腾IDE30G硬盘(sda)，光盘启动安装ubuntu8.04.1。安装过程中选择将Grub安装在sdb,安装完成后ubuntu能够正常启动，而windowsxp无法启动。在Grub启动菜单选择windowsxp后，出现starting up......硬盘灯常亮，主机无反应。尝试用win98光盘启动，运行fdisk /mbr，没有效果。请问如何解决？
附：fdisk -l
Device Boot Start End Blocks Id System
/dev/sda1 * 1 24 192748+ 83 Linux
/dev/sda2 25 148 996030 83 Linux
/dev/sda3 149 3649 28121782+ 5 Extended
/dev/sda5 149 895 6000246 83 Linux
/dev/sda6 3588 3649 497983+ 82 Linux swap / Solaris
/dev/sda7 3463 3587 1003999+ 83 Linux
/dev/sda8 3439 3462 192748+ 83 Linux
/dev/sda9 896 3438 20426616 83 Linux

Partition table entries are not in disk order

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xd03bd03b

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 2550 20482843+ 7 HPFS/NTFS
/dev/sdb2 2551 19457 135805477+ f W95 Ext'd (LBA)
/dev/sdb5 2551 11474 71681998+ 7 HPFS/NTFS
/dev/sdb6 11475 19457 64123416 7 HPFS/NTFS

[aerofox]

是不是该检查一下 /boot/grub/menu.lst？

[habunt]

我的menu.lst
## 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 2.6.24-21-generic
root (hd1,0)
kernel /vmlinuz-2.6.24-21-generic root=UUID=1754fd66-12a5-4b5c-97c7-7197ddb5ae33 ro quiet splash locale=zh_CN
initrd /initrd.img-2.6.24-21-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-21-generic (recovery mode)
root (hd1,0)
kernel /vmlinuz-2.6.24-21-generic root=UUID=1754fd66-12a5-4b5c-97c7-7197ddb5ae33 ro single
initrd /initrd.img-2.6.24-21-generic

title Ubuntu 8.04.1, memtest86+
root (hd1,0)
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/sdb1
title Microsoft Windows XP Professional
root (hd0,0)
savedefault
makeactive
map (hd0) (hd1)
map (hd1) (hd0)
chainloader (hd0,0)+1

[habunt]

在fdisk -l中有这样一句话：
Partition table entries are not in disk order
是不是说sda上的分区表被破坏了？