救命!!! Ubuntu 偵測不到Unknown磁區.

[訪客]

嗨～各位前輩～先請安～
我最近才剛完全轉換到UBUNTU上～
原先在window上我的hd是分為C80G, D80G
轉移到linux上時～由於Linux在安裝他只顯示80G,
所以我認為D槽必定安全無虞,所以便直接安裝在C

一切都順利安裝完成,只是當我開使用時,卻偵測不到d槽
我使用gparted所偵測的結果如下圖
http://www.badongo.com/pic/3334995

電腦資訊如下 :
Mount :

/dev/sda1 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.22-14-generic/volatile type tmpfs (rw)
/dev/sda4 on /home type ext3 (rw)
/dev/sda3 on /var type ext3 (rw)
securityfs on /sys/kernel/security type securityfs (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/disk type vfat (rw,nosuid,nodev,shortname=mixed,uid=1000,utf8,uma sk=077,usefree)

fdisk -l :

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x24149edc

Device Boot Start End Blocks Id System
/dev/sda1 1 7295 58597056 83 Linux
/dev/sda2 9396 19458 80824542+ 83 Linux
/dev/sda3 7296 8511 9767520 83 Linux
/dev/sda4 8512 9395 7100730 83 Linux

Partition table entries are not in disk order

Disk /dev/sdb: 8168 MB, 8168931328 bytes
39 heads, 5 sectors/track, 81820 cylinders
Units = cylinders of 195 * 512 = 99840 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sdb1 43 81821 7973376 b W95 FAT32

Cat /etc/fstab

# /etc/fstab: static file system information.
#
# -- This file has been automaticly generated by ntfs-config --
#
# <file system> <mount point> <type> <options> <dump> <pass>

proc /proc proc defaults 0 0
# Entry for /dev/sda1 :
UUID=a7178c3e-76e5-49fd-bf72-c282e905a09f / ext3 defaults,errors=remount-ro 0 1
# Entry for /dev/sda4 :
UUID=d1dae845-8933-4865-b328-6ae78cd22f43 /home ext3 defaults 0 2
# Entry for /dev/sda3 :
UUID=663e6b6e-4b92-4c12-ae37-422d24a5594d /var ext3 defaults 0 2
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0

我該如何將那個unknown磁區的資料抓出來呢？
我想保留那些資料～拜託各位高手了～感激不盡