OSFMount and partition listing

[Nep]

I have a dd image of an iMac (HSF format). When I open the image, I do not get the window to select the partition that I want to mount.

mmls will show the following:
Slot Start End Length Description
00: ----- 0000000000 0000000000 0000000001 Unallocated
01: 00 0000000001 0000000063 0000000063 Apple_partition_map
02: Meta 0000000001 0000000004 0000000004 Table
03: 01 0000000064 0000262207 0000262144 Apple_Free
04: 02 0000262208 0488397151 0488134944 Apple_HFS
05: 03 0488397152 0488397167 0000000016 Apple_Free

Any ideas?
Thanks

[David (PassMark)]

OSFMount will only pick up partitions that are defined in a MBR.
http://en.wikipedia.org/wiki/Master_boot_record

Older Macs used APM and not a MBR,
http://en.wikipedia.org/wiki/Apple_Partition_Map

But we will be supporting GUID partitions which are used by newer Macs (after about 2007) and some Windows machines.
http://en.wikipedia.org/wiki/GUID_Partition_Table

You should still be able to mount the whole drive however.