This file is indexed.

/etc/cpmtools/diskdefs is in cpmtools 2.13-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
diskdef ibm-3740
  seclen 128
  tracks 77
  sectrk 26
  blocksize 1024
  maxdir 64
  skew 6
  boottrk 2
  os p2dos
end

diskdef 4mb-hd
  seclen 128
  tracks 1024
  sectrk 32
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 0
  os p2dos
end

diskdef pcw
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 1
  os 3
end

diskdef pc1.2m
  seclen 512
  tracks 80
  # this format uses 15 sectors per track, but 30 per cylinder
  sectrk 30
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 0
  os 3
end

# CP/M 86 on 1.44MB floppies
diskdef cpm86-144feat
  seclen 512
  tracks 160
  sectrk 18
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 2
  os 3
end

diskdef cf2dd
  seclen 512
  tracks 160
  sectrk 9
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 1
  os 3
end

#amstrad: values are read from super block (special name hardcoded)

# Royal alphatronic
# setfdprm /dev/fd1 dd ssize=256 cyl=40 sect=16 head=2
diskdef alpha
  seclen 256
  tracks 40
  sectrk 32
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 2
  os 2.2
end

# Apple II CP/M skew o Apple II DOS 3.3 skew
diskdef apple-do
  seclen 256
  tracks 35
  sectrk 16
  blocksize 1024
  maxdir 64
  skewtab 0,6,12,3,9,15,14,5,11,2,8,7,13,4,10,1
  boottrk 3
  os 2.2
end

# Apple II CP/M skew o Apple II PRODOS skew
diskdef apple-po
  seclen 256
  tracks 35
  sectrk 16
  blocksize 1024
  maxdir 64
  skewtab 0,9,3,12,6,15,1,10,4,13,7,8,2,11,5,14
  boottrk 3
  os 2.2
end

# MYZ80 hard drive (only works with libdsk, because it has a 256-byte header)
diskdef myz80
  seclen 1024
  tracks 64
  sectrk 128
  blocksize 4096
  maxdir 1024
  skew 1
  boottrk 0
  os 3
end

# Despite being Amstrad formats, CPC System and CPC Data don't have an Amstrad 
# superblock. You'll need to use libdsk to access them because the Linux 
# and Windows kernel drivers won't touch them.
diskdef cpcsys
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 2
  os 3
end
diskdef cpcdata
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 0
  os 3
end

# after being read in with no sector skew.
diskdef nigdos
  seclen 512
  # NigDos double sided disk format, 42 tracks * 2 sides
  tracks 84
  sectrk 10
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 0
  # this format wastes half of the directory entry
  logicalextents 1
  os 3
end

diskdef epsqx10
  seclen 512
  tracks 40
  sectrk 20
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 2
  os 2.2
end

diskdef ibm-8ss
  seclen 512
  tracks 40
  sectrk 8
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

diskdef ibm-8ds
  seclen 512
  tracks 40
  sectrk 8
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

diskdef electroglas
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 256
  skew 0
  boottrk 1
  os 3
end

# IBM CP/M-86
# setfdprm /dev/fd1 sect=8 dtr=1 hd ssize=512 tpi=48 head=1
diskdef ibmpc-514ss
   seclen 512
   tracks 40
   sectrk 8
   blocksize 1024
   maxdir 64
   skew 1
   boottrk 1
   os 2.2
end

# IBM CP/M-86
# setfdprm /dev/fd1 sect=8 dtr=1 hd ssize=512 tpi=48
diskdef ibmpc-514ds
   seclen 512
   tracks 80
   sectrk 8
   blocksize 2048
   maxdir 64
   skew 0
   boottrk 2
   os 2.2
end

diskdef p112
  seclen 512
  tracks 160
  sectrk 18
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 2
  os 3
end

diskdef p112-old
  seclen 512
  tracks 160
  sectrk 18
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 1
  os 3
end

diskdef kpii
  seclen 512
  tracks 40
  sectrk 10
  blocksize 1024
  maxdir 32
  skew 0
  boottrk 1
  os 2.2
end

# setfdprm /dev/fd0 dd sect=10
diskdef interak
  seclen 512
  tracks 80
  sectrk 20
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 2
  os 2.2
end

# Timex FDD3000 3"
diskdef fdd3000
  seclen 256
  tracks 40
  sectrk 16
  blocksize 1024
  maxdir 128
  boottrk 4
  os 2.2
  skew 7
end

# Timex FDD3000 3"
diskdef fdd3000_2
  seclen 256
  tracks 40
  sectrk 16
  blocksize 1024
  maxdir 128
  boottrk 2
  os 2.2
  skew 5
end

# Robotron 1715
diskdef 1715
  seclen 1024
  tracks 40
  sectrk 5
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 3
  os 2.2
end

# Robotron 1715 with SCP3
diskdef 17153
  seclen 1024
  tracks 160
  sectrk 5
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 4
  os 3
end

# Visual Technology Visual 1050 computer
diskdef v1050
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 2
  os 3
end

# Microbee 40 track 5.25" disks
diskdef microbee40
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef dreamdisk40
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef dreamdisk80
  seclen 512
  tracks 160
  sectrk 10
  blocksize 2048
  maxdir 256
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef rc759
  seclen 1024
  tracks 160
  sectrk 8
  blocksize 2048
  maxdir 512
  boottrk 4
  os 3
end