Mounting extended Linux partitions

[Dave Horsfall <dave_(_at_)_horsfall_(_dot_)_org>]

I'm doing a Penguinectomy from RedHat 7.1 to OpenBSD 3.1, and it looks
like BSD cannot handle an extended Linux partition (type 0x85); this
partition contains /usr, /var and /home.  Searched the web for references
to this, and found all sorts of interesting things, but nothing applicable
here.

Here's the output of several commands:

gate# fdisk wd1
Disk: wd1       geometry: 19857/16/63 [20015856 Sectors]
Offset: 0       Signature: 0xAA55
         Starting       Ending       LBA Info:
 #: id    C   H  S -    C   H  S [       start:      size   ]
------------------------------------------------------------------------
*0: 83    0   1  1 - 1039  15 63 [          63:     1048257 ] Linux files*
 1: 85 1040   0  1 - 19856  15 63 [     1048320:    18967536 ] Linux ext.
 2: 00    0   0  0 -    0   0  0 [           0:           0 ] unused
 3: 00    0   0  0 -    0   0  0 [           0:           0 ] unused


gate# disklabel wd1
disklabel: warning, DOS partition table with no valid OpenBSD partition
# /dev/rwd1c:
type: ESDI
disk: ESDI/IDE disk
label: FUJITSU MPF3102A
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 16383
total sectors: 20015856
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0

16 partitions:
#        size   offset    fstype   [fsize bsize   cpg]
  c: 20015856        0    unused        0     0         # (Cyl.    0 - 19856)
  i:  1048257       63    ext2fs                        # (Cyl.    0*- 1039)
  j: 18967536  1048320   unknown                        # (Cyl. 1040 - 19856)


The "wd1i" partition checks out OK (it's the Penguin root), but I can't
seem to peer inside the extended "wd1j" partition to mount the partitions
within.  Any ideas?


-- 
Dave Horsfall  DTM  VK2KFU  dave_(_at_)_esi_(_dot_)_com_(_dot_)_au  Ph: +61 2 9906-3377 Fx: 9906-3468
(Unix Guru) Pacific ESI, Unit 22, 8 Campbell St, Artarmon, NSW 2065, Australia