Hi i have a 40gb drive from a freebsd system that i need my backups off. 
But i cant seem to mount it.
mount -t ufs /dev/wd3d /wd3
mount_ufs: /dev/wd3d on /wd3: incorrect super block

and an fsck

fsck /dev/wd3d
** /dev/rwd3d
BAD SUPER BLOCK: CAN'T FIND SUPERBLOCK

LOOK FOR ALTERNATE SUPERBLOCKS? [yn] y

SEARCH FOR ALTERNATE SUPER-BLOCK FAILED. YOU MUST USE THE
-b OPTION TO fsck_ffs TO SPECIFY THE LOCATION OF AN ALTERNATE
SUPER-BLOCK TO SUPPLY NEEDED INFORMATION; SEE fsck_ffs(8).

and disklabel
: {52} disklabel /dev/wd3
# /dev/wd3d:
type: ESDI
disk: ad2s1
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 4865
total sectors: 78165360
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0

8 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 c:  78156162        63     unused      0     0        # (Cyl.      
0*-   4864)
 d:  78156162        63     4.2BSD   2048 16384 28552  # (Cyl.      
0*-   4864)
disklabel: super block size 0
disklabel: warning, partition p increased number of partitions from 8 to 16
disklabel: partitions d and o overlap
disklabel: partition i: offset past end of unit
disklabel: partition i: partition extends past end of unit
disklabel: partition j: offset past end of unit
disklabel: partition j: partition extends past end of unit
disklabel: partitions j and k overlap
disklabel: partitions j and n overlap
disklabel: partitions j and o overlap
disklabel: partitions j and p overlap
disklabel: partition k: offset past end of unit
disklabel: partition k: partition extends past end of unit
disklabel: partitions k and o overlap
disklabel: partitions k and p overlap
disklabel: partition l: offset past end of unit
disklabel: partition l: partition extends past end of unit
disklabel: partitions l and o overlap
disklabel: partition m: offset past end of unit
disklabel: partition m: partition extends past end of unit
disklabel: partitions m and o overlap
disklabel: partition n: offset past end of unit
disklabel: partition n: partition extends past end of unit
disklabel: partitions n and o overlap
disklabel: partitions n and p overlap
disklabel: partition o: partition extends past end of unit
disklabel: partitions o and p overlap
disklabel: partition p: offset past end of unit
disklabel: partition p: partition extends past end of unit