Maccullagh Disk Layout

Partitions

Disklabels

disklabel aacd0s1

# /dev/aacd0s1c:
type: ESDI
disk: amnesiac
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 1565
sectors/unit: 25157727
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# milliseconds
track-to-track seek: 0	# milliseconds
drivedata: 0 

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:   262144        0    4.2BSD     2048 16384    16 	# (Cyl.    0 - 16*)
  b:  2621440   262144    unused        0     0       	# (Cyl.   16*- 179*)
  c: 25157727        0    unused        0     0       	# (Cyl.    0 - 1565*)
  d:  1048576  2883584    4.2BSD     2048 16384    16 	# (Cyl.  179*- 244*)
  e:  3072000  3932160    4.2BSD     2048 16384    16 	# (Cyl.  244*- 435*)
  f:  4194304  7004160    4.2BSD     2048 16384    16 	# (Cyl.  435*- 697*)
  g:  8388608 11198464    4.2BSD     2048 16384    16 	# (Cyl.  697*- 1219*)
  h:  5570655 19587072    4.2BSD     2048 16384    89 	# (Cyl. 1219*- 1565*)

disklabel aacd1s1

# /dev/aacd1s1c:
type: ESDI
disk: amnesiac
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 34126
sectors/unit: 548250192
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# milliseconds
track-to-track seek: 0	# milliseconds
drivedata: 0 

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c: 548250192        0    unused        0     0       	# (Cyl.    0 - 34126*)
  d: 419430400        0    4.2BSD     2048 16384   100 	# (Cyl.    0 - 26108*)
  h: 128819792 419430400    4.2BSD     2048 16384    97 	# (Cyl. 26108*- 34126*)

disklabel aacd2s1

# /dev/aacd2s1c:
type: ESDI
disk: amnesiac
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 4426
sectors/unit: 71119692
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# milliseconds
track-to-track seek: 0	# milliseconds
drivedata: 0 

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c: 71119692        0    unused        0     0       	# (Cyl.    0 - 4426*)
  d: 71119692        0    4.2BSD     2048 16384    89 	# (Cyl.    0 - 4426*)

disklabel amrd1s1

# /dev/amrd1s1c:
type: SCSI
disk: amnesiac
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 68659
sectors/unit: 1103022837
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# milliseconds
track-to-track seek: 0	# milliseconds
drivedata: 0 

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c: 1103022837        0    unused        0     0       	# (Cyl.    0 - 68659*)
  d: 367001600        0    4.2BSD     2048 16384   100 	# (Cyl.    0 - 22844*)
  e: 367001600 367001600    4.2BSD     1024  8192    16 	# (Cyl. 22844*- 45689*)
  f: 369019637 734003200    4.2BSD     2048 16384   100 	# (Cyl. 45689*- 68659*)

Partition Tables

fdisk aacd0

******* Working on device /dev/aacd0 *******
parameters extracted from in-core disklabel are:
cylinders=1566 heads=255 sectors/track=63 (16065 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=1566 heads=255 sectors/track=63 (16065 blks/cyl)

Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 63, size 25157727 (12284 Meg), flag 80 (active)
	beg: cyl 0/ head 1/ sector 1;
	end: cyl 541/ head 254/ sector 63
The data for partition 2 is:

The data for partition 3 is:

The data for partition 4 is:

fdisk aacd1

******* Working on device /dev/aacd1 *******
parameters extracted from in-core disklabel are:
cylinders=34127 heads=255 sectors/track=63 (16065 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=34127 heads=255 sectors/track=63 (16065 blks/cyl)

Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 63, size 548250192 (267700 Meg), flag 80 (active)
	beg: cyl 0/ head 1/ sector 1;
	end: cyl 334/ head 254/ sector 63
The data for partition 2 is:

The data for partition 3 is:

The data for partition 4 is:

fdisk aacd2

******* Working on device /dev/aacd2 *******
parameters extracted from in-core disklabel are:
cylinders=4427 heads=255 sectors/track=63 (16065 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=4427 heads=255 sectors/track=63 (16065 blks/cyl)

Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 63, size 71119692 (34726 Meg), flag 80 (active)
	beg: cyl 0/ head 1/ sector 1;
	end: cyl 330/ head 254/ sector 63
The data for partition 2 is:

The data for partition 3 is:

The data for partition 4 is:

fdisk amrd1

******* Working on device /dev/amrd1 *******
parameters extracted from in-core disklabel are:
cylinders=68660 heads=255 sectors/track=63 (16065 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=68660 heads=255 sectors/track=63 (16065 blks/cyl)

Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 63, size 1103022837 (538585 Meg), flag 80 (active)
	beg: cyl 0/ head 1/ sector 1;
	end: cyl 51/ head 254/ sector 63
The data for partition 2 is:

The data for partition 3 is:

The data for partition 4 is: