sudo fdisk -l и grep -v "#" /boot/grub/menu.lst выложи.
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x90909090
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3825 30724281 7 HPFS/NTFS
/dev/sda2 3826 19457 125564040 f W95 Ext'd (LBA)
/dev/sda5 3826 7650 30724281 7 HPFS/NTFS
/dev/sda6 7651 11475 30724281 7 HPFS/NTFS
/dev/sda7 11476 15300 30724281 7 HPFS/NTFS
/dev/sda8 15301 19457 33391071 7 HPFS/NTFS
Disk /dev/sdb: 250.0 GB, 250059350016 bytes
16 heads, 63 sectors/track, 484521 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk identifier: 0xe5c23ac1
Device Boot Start End Blocks Id System
/dev/sdb1 2 265091 133605360 f W95 Ext'd (LBA)
/dev/sdb2 * 265092 266579 749952 82 Linux swap / Solaris
/dev/sdb3 266580 324708 29297016 83 Linux
/dev/sdb4 324709 484519 80544744 83 Linux
/dev/sdb5 2 265091 133605328+ 7 HPFS/NTFS
menu.lst
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
## ## End Default Options ##
title Ubuntu 8.04.2, kernel 2.6.24-23-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-23-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro quiet splash
initrd /boot/initrd.img-2.6.24-23-generic
quiet
title Ubuntu 8.04.2, kernel 2.6.24-23-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-23-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro single
initrd /boot/initrd.img-2.6.24-23-generic
title Ubuntu 8.04.2, kernel 2.6.24-22-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-22-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro quiet splash
initrd /boot/initrd.img-2.6.24-22-generic
quiet
title Ubuntu 8.04.2, kernel 2.6.24-22-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-22-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro single
initrd /boot/initrd.img-2.6.24-22-generic
title Ubuntu 8.04.2, kernel 2.6.24-21-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-21-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro quiet splash
initrd /boot/initrd.img-2.6.24-21-generic
quiet
title Ubuntu 8.04.2, kernel 2.6.24-21-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-21-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro single
initrd /boot/initrd.img-2.6.24-21-generic
title Ubuntu 8.04.2, kernel 2.6.24-19-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet
title Ubuntu 8.04.2, kernel 2.6.24-19-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=64431db7-0b2a-4df5-8f68-c7fd8aed7d0b ro single
initrd /boot/initrd.img-2.6.24-19-generic
title Ubuntu 8.04.2, memtest86+
root (hd0,2)
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 RU
root (hd0,0)
savedefault
makeactive
chainloader +1