install revision 1.13 1 Installing NetBSD is a relatively complex process, but if you have
2 this document in hand and are careful to read and remember the
3 information which is presented to you by the install program, it
4 shouldn't be too much trouble.
5
6 Before you begin, you should know the geometry of your hard disk, i.e.
7 the sector size (note that sector sizes other than 512 bytes are not
8 currently supported), the number of sectors per track, the number of
9 tracks per cylinder (also known as the number of heads), and the
10 number of cylinders on the disk. The NetBSD kernel will try to
11 discover these parameters on its own, and if it can it will print them
12 at boot time. If possible, you should use the parameters it prints.
13 (You might not be able to because you're sharing your disk with
14 another operating system, or because your disk is old enough that the
15 kernel can't figure out its geometry.)
16
17 If NetBSD will be sharing the disk with DOS or another operating
18 system, you should have already completed the section of these notes
19 that instructed you on how to prepare your hard disk. You should know
20 the size of the NetBSD area of the disk and its offset from the
21 beginning of the disk. You will need this information when setting up
22 your NetBSD partitions.
23
24 You should now be ready to install NetBSD. It might be handy for you
25 to have a pencil, some paper, and a calculator handy.
26
27 The following is a walk-through of the steps you will take while
28 getting NetBSD installed on your hard disk. If any question has a
29 default answer, it will be displayed in brackets ("[]") after the
30 question. If you wish to stop the installation, you may hit Control-C
31 at any time, but if you do, you'll have to begin the installation
32 process again from scratch.
33
34 Boot your machine using the boot floppy. The boot loader will
35 start, and will print a countdown and begin booting. You will
36 likely see one "file not found" warning from the boot loader
37 -- ignore this as it is normal, and indicates the boot loader
38 failed to find a normal kernel to boot before trying to boot a
39 compressed kernel.
40
41 If the boot loader messages do not appear in a reasonable
42 amount of time, you either have a bad boot floppy or a
43 hardware problem. Try writing the install floppy image to
44 a different disk, and using that.
45
46 If that doesn't work, try booting after disabling your CPU's
47 internal and external caches (if any). If it still doesn't
48 work, NetBSD probably can't be run on your hardware. This can
49 probably be considered a bug, so you might want to report it.
50 If you do, please include as many details about your system
51 configuration as you can.
52
53 It will take a while to load the kernel from the floppy,
54 probably around a minute or so.
55
56 You will then be presented with the NetBSD kernel boot
57 messages. You will want to read them, to determine your
58 disk's name and geometry. Its name will be something like
59 "sd0" or "wd0" and the geometry will be printed on a line that
60 begins with its name. As mentioned above, you will need your
61 disk's geometry when creating NetBSD's partitions. You will
62 also need to know the name, to tell the install tools what
63 disk to install on.
64
65 Note that, once the system has finished booting, you need no
66 longer leave the floppy in the disk drive. Earlier version of
67 the NetBSD install floppies mounted the floppy as the system's
68 root partition, but the new installation floppies use a
69 ramdisk file system and are no longer dependent on the floppy
70 once it has booted.
71
72 While booting, you will probably see several warnings. You
73 should be warned that no swap space is present, and that
74 init(8) cannot find /etc/rc. Do not be alarmed, these are
75 completely normal. When you reach the prompt asking you for a
76 shell name, just hit return.
77
78 You will be asked if you wish to install or upgrade your
79 system or go to a shell prompt. Enter "install".
80
81 You will be presented with a welcome message and a prompt,
82 asking if you wish to proceed with the installation process.
83 If you wish to proceed, enter "y" and hit return.
84
85 You will be asked what type of disk driver you have. The
86 valid options are listed by the install program, to make sure
87 you get it right. If you're installing on an ST-506 or ESDI
88 drive, you'll be asked if your disk supports automatic sector
89 forwarding. If you are SURE that it does, reply
90 affirmatively. Otherwise, the install program will
91 automatically reserve space for bad144 tables.
92
93 The install program will then tell you which disks of that
94 type it can install on, and ask you which it should use.
95 Reply with the name of your disk. (The first disk of the type
96 you selected, either "wd0" for ST-506/ESDI/IDE disks, or "sd0"
97 for SCSI disks, is the default.)
98
99 You will then be asked to name your disk's disklabel. The
100 default response is "mywd" or "mysd" depending on the type of
101 your disk, and for most purposes it will be OK. If you choose
102 to name it something different, make sure the name is a single
103 word and contains no special characters. You don't need to
104 remember this name.
105
106 You will be prompted for your disk's geometry information,
107 i.e. the number of bytes per sector, cylinders on the disk,
108 tracks per cylinder (heads), and sectors per track. Enter
109 them when they are requested. If you make a mistake, hit
110 Control-C and when you get to the shell prompt, restart the
111 install process by running the "install" command. Once you
112 have entered this data, the install program will tell you the
113 total size of your disk, in both sectors, and cylinders.
114 Remember this number; if you're installing on the whole disk,
115 you'll need it again soon.
116
117 When describing your partitions, you will have the option of
118 entering data about them in units of disk sectors or
119 cylinders. If you choose to enter the information in units of
120 sectors, remember that, for optimal performance, partitions
121 should begin and end on cylinder boundaries. You will be
122 asked about which units you wish to use, and you should reply
123 with "c" for cylinders, or "s" for sectors.
124
125 You will be asked for the size of the NetBSD portion of the
126 disk. If you're installing on the whole disk, reply with the
127 size of the disk, as printed earlier by the install program.
128 If you're using only part of the disk, reply with the size
129 that you specified in the partition editor. (Don't forget to
130 enter the size in the units you specified in the last step!)
131
132 If you are not installing on the whole disk, you will be asked
133 fro the offset of the NetBSD partition from the beginning of
134 the disk. Reply with the appropriate offset (again, in
135 whichever units you specified), as determined by how you
136 set up your disk using the partition editor.
137
138 You will be asked to enter the size of your NetBSD root
139 partition. It should be at least 13M, but if you are going to
140 be doing development, 14-16M is a more desirable size. This
141 size should be expressed in units of sectors or cylinders,
142 depending on which you said you wanted to use.
143
144 Next, you will be asked for the size of your swap partition.
145 You should probably allocate twice as much swap space as you
146 have real memory. Systems that will be heavily used should
147 have more swap space allocated, and systems that will be
148 lightly used can get by with less. If you want the system to
149 be able to save crash dumps when it panics, you will need at
150 least as much swap space as you have RAM. Again, this number
151 should be expressed in units of sectors or cylinders, as
152 appropriate.
153
154 The install program will then ask you for information about
155 the rest of the partitions you want on your disk. For most
156 purposes, you will want only one more partition, "/usr".
157 (Machines used as servers will probably also want /var as a
158 separate partition. That can be done with these installation
159 tools, but is not covered here.) The install program will
160 tell you how much space there is left to be allocated in the
161 NetBSD area of the disk, and, if you only want one more
162 partition ("/usr"), you should enter it at the prompt when the
163 installer asks you how large the next partition should be.
164 It will then ask you for the name of the mount point for that
165 partition. If you're doing a basic installation, that is
166 "/usr".
167
168 YOU ARE NOW AT THE POINT OF NO RETURN. Nothing has been
169 written to your disk yet, but if you confirm that you want to
170 install NetBSD, your hard drive will be modified, and its
171 contents may be scrambled at the whim of the install program.
172 This is especially likely if you have given the install
173 program incorrect information. If you are sure you want to
174 proceed, enter "yes" at the prompt.
175
176 The install program will now label your disk and make the file
177 systems you specified. The filesystems will be initialized to
178 contain NetBSD bootstrapping binaries and configuration files.
179 It will also create an /etc/fstab for your system, and mount
180 all of the file systems under /mnt. (In other words, your root
181 partition will be mounted on /mnt, your /usr partition on
182 /mnt/usr, and so on.) There should be no errors in this
183 section of the installation. If there are, restart from the
184 beginning of the installation process.
185
186 You will be placed at a shell prompt ("#"). The task is to
187 install the distribution sets. The flow of installation
188 differs depending on your hardware resources, and on what
189 media the distribution sets reside.
190
191 NOTE: In previous versions of NetBSD, the kernel from the
192 install floppy was copied onto the hard drive in a special
193 step. In the new install system, the kernel on the floppy is
194 unsuited to being copied onto the hard drive. Instead, a new
195 set, "kern", has been added which contains a generic kernel to
196 be unloaded onto the drive. It must be extracted in addition
197 to "base" and "etc" in order to have a minimally functioning
198 system.
199
200 To install from floppy:
201 The first thing you should do is pick a temporary
202 directory where the distribution files can be stored.
203 To do this, enter the command "Set_tmp_dir", and enter
204 the name of the temporary directory. (Don't forget
205 that if your disk is still mounted under /mnt; you
206 should probably pick a directory under /mnt/usr.)
207
208 After you have picked a temporary directory, enter the
209 "Load_fd" command, to load the distribution sets from
210 your floppies.
211
212 You will be asked which floppy drive to use. Enter
213 "0" (zero) if you're using the first floppy drive
214 (i.e. what DOS would call "A:"), or enter "1" if
215 you're using the second (i.e. what DOS would call
216 "B:")
217
218 You will be prompted to insert a floppy into the drive,
219 to have its contents copied to your hard disk. Do so,
220 and hit return to begin copying. When that is done,
221 read the remainder of the floppies that contain the
222 distribution sets that you want to install, one by
223 one. When the last is read, and you are being
224 prompted for another, hit Control-C.
225
226 Run the "Extract" command once for each distribution
227 set you wish to install. For instance, if you wish to
228 install the "kern" distribution set, followed by the
229 "base" distribution set, and finally the "etc"
230 distribution set, use the commands:
231 Extract kern
232 Extract base
233 Extract etc
234
235 For each extraction, it will ask you if the extraction
236 should be verbose. If you reply affirmatively, it
237 will print out the name of each file that's being
238 extracted.
239
240 (Note: if you know that you will be running low on
241 disk space when installing NetBSD, you can load and
242 extract one distribution set at a time. To do this,
243 load only the floppies which contain the files for the
244 first distribution set, extract them, and then change
245 to the temporary directory and remove them with the
246 command "rm set_name.??".)
247
248 Once you are finished extracting all of the sets that
249 you wish to install, you should proceed to the
250 instructions below (after the last install medium
251 type-specific instructions), that explain how you
252 should configure your system.
253
254 To install from tape:
255 The first thing you should do is pick a temporary
256 directory where the distribution files can be stored.
257 To do this, enter the command "Set_tmp_dir", and enter
258 the name of the temporary directory. (Don't forget
259 that your disk is mounted under /mnt; you should
260 probably pick a directory under /mnt/usr.) The
261 default is /mnt/usr/distrib.
262
263 After you have picked a temporary directory, enter the
264 "Load_tape" command, to load the distribution sets from
265 tape.
266
267 You will be asked which tape drive to use. The
268 default is "rst0", which is correct if you're using
269 the SCSI tape drive with the lowest SCSI ID number.
270 (For the SCSI tape drive with the next lowest SCSI ID
271 number, you should use "rst1", and so on.)
272
273 You will be prompted to hit return when you have
274 inserted the tape into the tape drive. When you do,
275 the contents of the tape will be extracted into the
276 temporary directory, and the names of the files being
277 extracted will be printed.
278
279 After the tape has been extracted, to go the directory
280 containing the first distribution set you wish to
281 install. (Depending on how you made the tape, it's
282 probably a subdirectory of the temporary directory you
283 specified above.) Once there, run the "Set_tmp_dir"
284 command again, and accept its default answer by
285 hitting return at the prompt.
286
287 Use the "Extract" command to extract the distribution
288 set. For instance, if you're extracting the "base"
289 set, use the command:
290 Extract base
291 You will be asked if you wish the extraction to be
292 verbose. If you reply affirmatively, the name of each
293 file being extracted will be printed.
294
295 Repeat the previous two steps for each distribution
296 set you wish to install. Change to the set's
297 directory, run "Set_tmp_dir", and then run
298 "Extract <set_name>" to extract the set.
299
300 Once you are finished extracting all of the sets that
301 you wish to install, you should proceed to the
302 instructions below (after the last install medium
303 type-specific instructions), that explain how you
304 should configure your system.
305
306 To install via FTP or NFS:
307 The first thing you should do is pick a temporary
308 directory where the distribution files can be stored.
309 To do this, enter the command "Set_tmp_dir", and enter
310 the name of the temporary directory. (Don't forget
311 that your disk is mounted under /mnt; you should
312 probably pick a directory under /mnt/usr.) The
313 default is /mnt/usr/distrib.
314
315 Configure the appropriate ethernet interface (e.g.
316 ed0, ep0, etc.) up, with a command like:
317
318 ifconfig <ifname> <ipaddr> [netmask <netmask>]
319
320 where "<ifname>" is the interface name, like those
321 listed above, and "<ipaddr>" is the numeric IP address
322 of the interface. If the interface has a special
323 netmask, supply the word "netmask" at and that netmask
324 at the end of the command line. (The brackets
325 indicate that those arguments are optional.) For
326 instance, to configure interface ed0 with IP address
327 129.133.10.10, use the command:
328
329 ifconfig ed0 129.133.10.10
330
331 and to configure interface ep0 with IP address
332 128.32.240.167 and a special netmask, 0xffffff00, use
333 the command:
334
335 ifconfig ep0 128.32.240.167 netmask 0xffffff00
336
337 If your board selects software selection of the
338 ethernet interface to use, you might have to add
339 special "media" flags to the "ifconfig" command you
340 use to configure your board to use the appropriate
341 connector/media type, as in:
342
343 ifconfig de0 10BaseT
344
345 You may determine which media are supported on a given
346 interface by typing "ifconfig <interface> -m".
347
348 If the NFS server or FTP server is not on a directly-
349 connected network, you need to set up a route to it
350 using a command like:
351
352 route add default <gate_ipaddr>
353
354 where <gate_ipaddr> is your gateway's numeric IP
355 address.
356
357 If you are NFS-mounting the distribution sets, mount
358 them on the temporary directory with a command like:
359
360 mount -t nfs <serv_ipaddr>:<dist_dir> <tmp_dir>
361
362 where <serv_ipaddr> is the server's numeric IP address,
363 <dist_dir> is the path to the distribution files on
364 the server, and <tmp_dir> is the name of the local
365 temporary directory.
366
367 Once this is done, proceed as if you had loaded the
368 files from tape, changing to the appropriate
369 directories, running "Set_tmp_dir", and running
370 "Extract" as appropriate.
371
372 If you are retrieving the distribution sets using ftp,
373 change into the temporary directory, and execute the
374 command:
375
376 ftp <serv_ipaddr>
377
378 where <serv_ipaddr> is once again the server's numeric
379 IP address. Get the files with FTP, taking care to
380 use binary mode when transferring the files.
381
382 Once you have all of the files for the distribution
383 sets that you wish to install, you can proceed using
384 the instructions above, as if you had installed from a
385 floppy. (Note that as with the floppy install, if
386 you're short on disk space, you can transfer only one
387 set at a time, extract it, then delete it, to save
388 space.)
389
390 Completing your installation:
391 Once you have finished extracting all of the distribution sets
392 that you wish to install, and are back at the "#" prompt, you
393 are ready to configure your system. The configuration utility
394 expects that you have installed the "kern", "base" and
395 "etc" distribution sets. If you have not, you will not be
396 able to run it successfully (nor will you have a functional
397 system, in any case). To configure your newly-installed
398 NetBSD system, run the command "Configure". It will ask you
399 for the system's host name, domain name, and other network
400 configuration information. It will set up your configuration
401 files and make the device nodes for the newly-installed
402 system.
403
404
405 Congratulations, you have successfully installed NetBSD _VER. When you
406 reboot into NetBSD, you should log in as "root" at the login prompt.
407 There is no initial password, but if you're using the machine in a
408 networked environment, you should create yourself an account and
409 protect it and the "root" account with good passwords.
410
411 Some of the files in the NetBSD _VER distribution might need to be
412 tailored for your site. In particular, the /etc/sendmail.cf file will
413 almost definitely need to be adjusted, and other files in /etc will
414 probably need to be modified, as well. If you are unfamiliar with
415 UN*X-like system administration, it's recommended that you buy a book
416 that discusses it.
417