linux ubuntu går inte installera

ubuntu@ubuntu:/$ sudo fdisk -l /dev/sdd

Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000affc4

Device Boot Start End Blocks Id System
/dev/sdd1 1 60789 488280064 83 Linux
/dev/sdd2 60789 60802 103425 5 Extended
/dev/sdd5 60789 60802 103424 82 Linux swap / Solaris
ubuntu@ubuntu:/$ sudo mount -t ext3 /dev/sdd1 /mnt
mount: /dev/sdd1 already mounted or /mnt busy
ubuntu@ubuntu:/$ sudo mount -t ext3 /dev/sdd2 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/sdd2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

ubuntu@ubuntu:/$ sudo mount -t ext3 /dev/sdd5 /mnt
mount: /dev/sdd5 already mounted or /mnt busy
ubuntu@ubuntu:/$ ls /mnt
ubuntu@ubuntu:/$