Mounting partition from Mac disk on NetBSD/i386

Hello,

Sorry for the crossposting, but I figure that maybe there's somebody
on port-macppc that might help with this.

I'm attempting some data recovery after my iBook died (again). I took
the iBook's hard drive and put it in my NetBSD/i386 box. Now I'd like
to mount an ext3 partition that is located on that disk.

A modified [0] pdisk says:

----------------
Partition map (with 512 byte blocks) on '/dev/wd0d'
 #:                type name                   length   base     ( size )
 1: Apple_partition_map Apple                      63 @ 1       
 2:     Apple_Bootstrap bootstrap                4096 @ 64       (  2.0M)
 3:     Apple_UNIX_SVR2 swap                   258048 @ 4160     (126.0M)
 4:           Apple_HFS Apple_HFS_Untitled_2 20709376 @ 262208   (  9.9G)
 5:     Apple_UNIX_SVR2 swap                  1572865 @ 20971584 (768.0M)
 6:     Apple_UNIX_SVR2 untitled             36060671 @ 22544449 ( 17.2G)

Device block size=512, Number of Blocks=58605120 (27.9G)
DeviceType=0x0, DeviceId=0x0
----------------

In contrast the output of disklabel:

----------------
4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a:  58605120         0     4.2BSD      0     0     0  # (Cyl.      0 -  58139)
 d:  58605120         0     unused      0     0        # (Cyl.      0 -  58139)
disklabel: boot block size 0
disklabel: super block size 0
----------------

Is there any way to mount partition number 6 (Linux ext3) on the
NetBSD/i386 box? I'd appreciate any hints.

[0] <http://mail-index.netbsd.org/port-macppc/2005/07/19/0001.html>

Thanks in advance,
  Christoph