> What does disklabel say?

# disklabel wd0
# /dev/rwd0c:
type: ESDI
disk: IBM-IC25N030ATCS
label: fictitious
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 16383
total sectors: 58605120
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0          # microseconds
track-to-track seek: 0 # microseconds
drivedata: 0

7 partitions:
#        size    offset     fstype  [fsize bsize cpg/sgs]
 a:   9936944        64  Apple UFS      0     0     0   # (Cyl.    0*- 9858*)
 b:   1048576   9937008  Apple UFS      0     0     0   # (Cyl. 9858*- 10898*)
 c:  58605120         0     unused      0     0         # (Cyl.    0 - 58139)
 d:  16799704  41805408        HFS                      # (Cyl. 41473*- 58139*)
 e:  20966496  10985584  Apple UFS      0     0     0   # (Cyl. 10898*- 31698*)
 f:      1600  41803808    unknown                      # (Cyl. 41472*- 41473*)
 g:         8  58605112    unknown                      # (Cyl. 58139*- 58139)
disklabel: boot block size 0
disklabel: super block size 0
#


(I repartitioned and reinstalled, putting the Linux bootstrap partition
after the others so that the root and swap for NetBSD would come up as
wd0a and wd0b.)

These translate in the Apple partition table (as shown in Linux) below as:
wd0a <-> hda2 (NetBSD /)
wd0b <-> hda3 (UFS swap)
wd0d <-> hda7 (OSX)
wd0e <-> hda4 (shared /home partition)
wd0f <-> hda6 (Linux boot)
wd0g <-> hda8 (free space from OS X partitioner :-)


root # mac-fdisk /dev/hda
/dev/hda
Command (? for help): p
/dev/hda
        #                 type name        length   base     ( size )  system
dump: name /dev/hda len 8
/dev/hda1  Apple_partition_map Apple           63 @ 1        ( 31.5k)  Partition map
/dev/hda2            Apple_UFS NetBSD     9936944 @ 64       (  4.7G)  Unknown
/dev/hda3            Apple_UFS swap       1048576 @ 9937008  (512.0M)  Unknown
/dev/hda4            Apple_UFS Home      20966496 @ 10985584 ( 10.0G)  Unknown
/dev/hda5      Apple_UNIX_SVR2 Linux      9851728 @ 31952080 (  4.7G)  Linux native
/dev/hda6      Apple_Bootstrap bootstrap     1600 @ 41803808 (800.0k)  NewWorld bootblock
/dev/hda7            Apple_HFS Mac OS X  16799704 @ 41805408 (  8.0G)  HFS
/dev/hda8           Apple_Free                  8 @ 58605112 (  4.0k)  Free space

Block size=512, Number of Blocks=58605120
DeviceType=0x0, DeviceId=0x0

Command (? for help): q
root #