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Installing OpenBSD is a relatively complex process, but if you have
this document in hand and are careful to read and remember the
information which is presented to you by the install program, it
shouldn't be too much trouble.
Before you begin, you should know the geometry of your hard disk, i.e.
the sector size (note that sector sizes other than 512 bytes are not
currently supported), the number of sectors per track, the number of
tracks per cylinder (also known as the number of heads), and the
number of cylinders on the disk. The OpenBSD kernel will try to
discover these parameters on its own, and if it can it will print them
at boot time. If possible, you should use the parameters it prints.
(You might not be able to because you're sharing your disk with
another operating system, or because your disk is old enough that the
kernel can't figure out its geometry.)
If OpenBSD will be sharing the disk with DOS or another operating
system, you should have already completed the section of these notes
that instructed you on how to prepare your hard disk. You should know
the size of the OpenBSD area of the disk and its offset from the
beginning of the disk. You will need this information when setting up
your OpenBSD partitions.
You should now be ready to install OpenBSD. It might be handy for you
to have a pencil, some paper, and a calculator handy.
The following is a walk-through of the steps you will take while
getting OpenBSD installed on your hard disk. If any question has a
default answer, it will be displayed in brackets ("[]") after the
question. If you wish to stop the installation, you may hit Control-C
at any time, but if you do, you'll have to begin the installation
process again from scratch.
Boot your machine using of the appropriate kernel-copy floppy.
When presented with the boot prompt (the prompt begins with
"Boot" and ends with ":-"), hit return. If the boot prompt
does not appear in a reasonable amount of time, you either
have a bad boot floppy or a hardware problem. Try writing the
kernel-copy floppy image to a different disk, and using that.
If that doesn't work, try booting after disabling your CPU's
internal and external caches (if any). If it still doesn't
work, OpenBSD probably can't be run on your hardware. This can
probably be considered a bug, so you might want to report it.
If you do, please include as many details about your system
configuration as you can.
It will take a while to load the kernel from the floppy,
probably around a minute or so. After its loaded, you will be
presented with the message:
"Insert file system floppy"
If you do not see that message after a reasonable time has
elapsed, or the spinning cursor has stopped and nothing
further has happened, either your boot floppy is bad or you
are having hardware problems, and should proceed as outlined
above.
Once you have reached that prompt, remove the kernel-copy
floppy from the floppy drive. Make sure that the installation
disk (the "inst-11" floppy) is writable, insert it into the
floppy drive, and hit any key.
You will then be presented with the OpenBSD kernel boot
messages. You will want to read them, to determine your
disk's name and geometry. Its name will be something like
"sd0" or "wd0" and the geometry will be printed on a line that
begins with its name. As mentioned above, you will need your
disk's geometry when creating OpenBSD's partitions. You will
also need to know the name, to tell the install tools what
disk to install on.
While booting, you will probably see several warnings. You
should be warned that no swap space is present, and that
init(8) cannot find /etc/rc. Do not be alarmed, these are
completely normal. When you reach the prompt asking you for a
shell name, just hit return.
You will be presented with a welcome message and a prompt,
asking if you wish to proceed with the installation process.
If you wish to proceed, enter "y" and hit return.
You will be asked what type of disk driver you have. The
valid options are listed by the install program, to make sure
you get it right. If you're installing on an ST-506 or ESDI
drive, you'll be asked if your disk supports automatic sector
forwarding. If you are SURE that it does, reply
affirmatively. Otherwise, the install program will
automatically reserve space for bad144 tables.
The install program will then tell you which disks of that
type it can install on, and ask you which it should use.
Reply with the name of your disk. (The first disk of the type
you selected, either "wd0" for ST-506/ESDI/IDE disks, or "sd0"
for SCSI disks, is the default.)
You will then be asked to name your disk's disklabel. The
default response is "mywd" or "mysd" depending on the type of
your disk, and for most purposes it will be OK. If you choose
to name it something different, make sure the name is a single
word and contains no special characters. You don't need to
remember this name.
You will be prompted for your disk's geometry information,
i.e. the number of bytes per sector, cylinders on the disk,
tracks per cylinder (heads), and sectors per track. Enter
them when they are requested. If you make a mistake, hit
Control-C and when you get to the shell prompt, restart the
install process by running the "install" command. Once you
have entered this data, the install program will tell you the
total size of your disk, in both sectors, and cylinders.
Remember this number; if you're installing on the whole disk,
you'll need it again soon.
When describing your partitions, you will have the option of
entering data about them in units of disk sectors or
cylinders. If you choose to enter the information in units of
sectors, remember that, for optimal performance, partitions
should begin and end on cylinder boundaries. You will be
asked about which units you wish to use, and you should reply
with "c" for cylinders, or "s" for sectors.
You will be asked for the size of the OpenBSD portion of the
disk. If you're installing on the whole disk, reply with the
size of the disk, as printed earlier by the install program.
If you're using only part of the disk, reply with the size
that you specified in the partition editor. (Don't forget to
enter the size in the units you specified in the last step!)
If you are not installing on the whole disk, you will be asked
fro the offset of the OpenBSD partition from the beginning of
the disk. Reply with the appropriate offset (again, in
whichever units you specified), as determined by how you
set up your disk using the partition editor.
You will be asked to enter the size of your OpenBSD root
partition. It should be at least 13M, but if you are going to
be doing development, 14-16M is a more desirable size. This
size should be expressed in units of sectors or cylinders,
depending on which you said you wanted to use.
Next, you will be asked for the size of your swap partition.
You should probably allocate twice as much swap space as you
have real memory. Systems that will be heavily used should
have more swap space allocated, and systems that will be
lightly used can get by with less. If you want the system to
be able to save crash dumps when it panics, you will need at
least as much swap space as you have RAM. Again, this number
should be expressed in units of sectors or cylinders, as
appropriate.
The install program will then ask you for information about
the rest of the partitions you want on your disk. For most
purposes, you will want only one more partition, "/usr".
(Machines used as servers will probably also want /var as a
separate partition. That can be done with these installation
tools, but is not covered here.) The install program will
tell you how much space there is left to be allocated in the
OpenBSD area of the disk, and, if you only want one more
partition ("/usr"), you should enter it at the prompt when the
installer asks you how large the next partition should be.
It will then ask you for the name of the mount point for that
partition. If you're doing a basic installation, that is
"/usr".
YOU ARE NOW AT THE POINT OF NO RETURN. Nothing has been
written to your disk yet, but if you confirm that you want to
install OpenBSD, your hard drive will be modified, and its
contents may be scrambled at the whim of the install program.
This is especially likely if you have given the install
program incorrect information. If you are sure you want to
proceed, enter "yes" at the prompt.
The install program will now label your disk and make the file
systems you specified. The filesystems will be initialized to
contain OpenBSD bootstrapping binaries and configuration files.
It will also create an /etc/fstab for your system, and mount
all of the file systems under /mnt. (In other words, your root
partition will be mounted on /mnt, your /usr partition on
/mnt/usr, and so on.) There should be no errors in this
section of the installation. If there are, restart from the
beginning of the installation process.
You will be placed at a shell prompt ("#"). The remaining
tasks are to copy the kernel from the kernel copy floppy to
the hard drive's root filesystem and install the distribution
sets. The flow of installation differs depending on your
hardware resources, and on what media the distribution sets
reside.
To install from floppy:
If you only have only one floppy drive, the order of
installation is different. Follow the directions in
the "Kernel installation" section which will help you
install a kernel on the hard drive and then boot off
the hard drive, then continue with the rest of the
process described here to install the distribution
sets from floppy:
The first thing you should do is pick a temporary
directory where the distribution files can be stored.
To do this, enter the command "Set_tmp_dir", and enter
the name of the temporary directory. (Don't forget
that if your disk is still mounted under /mnt; you
should probably pick a directory under /mnt/usr.)
After you have picked a temporary directory, enter the
"Load_fd" command, to load the distribution sets from
your floppies.
You will be asked which floppy drive to use. Enter
"0" (zero) if you're using the first floppy drive
(i.e. what DOS would call "A:"), or enter "1" if
you're using the second. (Remember that you CANNOT
use the floppy drive that you booted from. If you
booted from "A:", you must load from "B:".)
You will be prompted to insert a floppy into the drive,
to have its contents copied to your hard disk. Do so,
and hit return to begin copying. When that is done,
read the remainder of the floppies that contain the
distribution sets that you want to install, one by
one. When the last is read, and you are being
prompted for another, hit Control-C.
Run the "Extract" command once for each distribution
set you wish to install. For instance, if you wish to
install the "base11" distribution set, followed by the
"man11" distribution set, and finally the "etc11"
distribution set, use the commands:
Extract base11
Extract man11
Extract etc11
For each extraction, it will ask you if the extraction
should be verbose. If you reply affirmatively, it
will print out the name of each file that's being
extracted.
(Note: if you know that you will be running low on
disk space when installing OpenBSD, you can load and
extract one distribution set at a time. To do this,
load only the floppies which contain the files for the
first distribution set, extract them, and then change
to the temporary directory and remove them with the
command "rm set_name.??".)
Once you are finished extracting all of the sets that
you wish to install, you should proceed to the
instructions below (after the last install medium
type-specific instructions), that explain how you
should configure your system.
To install from tape:
The first thing you should do is pick a temporary
directory where the distribution files can be stored.
To do this, enter the command "Set_tmp_dir", and enter
the name of the temporary directory. (Don't forget
that your disk is mounted under /mnt; you should
probably pick a directory under /mnt/usr.) The
default is /mnt/usr/distrib.
After you have picked a temporary directory, enter the
"Load_tape" command, to load the distribution sets from
tape.
You will be asked which tape drive to use. The
default is "rst0", which is correct if you're using
the SCSI tape drive with the lowest SCSI ID number.
(For the SCSI tape drive with the next lowest SCSI ID
number, you should use "rst1", and so on.)
You will be prompted to hit return when you have
inserted the tape into the tape drive. When you do,
the contents of the tape will be extracted into the
temporary directory, and the names of the files being
extracted will be printed.
After the tape has been extracted, to go the directory
containing the first distribution set you wish to
install. (Depending on how you made the tape, it's
probably a subdirectory of the temporary directory you
specified above.) Once there, run the "Set_tmp_dir"
command again, and accept its default answer by
hitting return at the prompt.
Use the "Extract" command to extract the distribution
set. For instance, if you're extracting the "base11"
set, use the command:
Extract base11
You will be asked if you wish the extraction to be
verbose. If you reply affirmatively, the name of each
file being extracted will be printed.
Repeat the previous two steps for each distribution
set you wish to install. Change to the set's
directory, run "Set_tmp_dir", and then run
"Extract <set_name>" to extract the set.
Once you are finished extracting all of the sets that
you wish to install, you should proceed to the
instructions below (after the last install medium
type-specific instructions), that explain how you
should configure your system.
To install via FTP or NFS:
The first thing you should do is pick a temporary
directory where the distribution files can be stored.
To do this, enter the command "Set_tmp_dir", and enter
the name of the temporary directory. (Don't forget
that your disk is mounted under /mnt; you should
probably pick a directory under /mnt/usr.) The
default is /mnt/usr/distrib.
Configure the appropriate ethernet interface (e.g.
ed0, ep0, etc.) up, with a command like:
ifconfig <ifname> <ipaddr> [netmask <netmask>]
where "<ifname>" is the interface name, like those
listed above, and "<ipaddr>" is the numeric IP address
of the interface. If the interface has a special
netmask, supply the word "netmask" at and that netmask
at the end of the command line. (The brackets
indicate that those arguments are optional.) For
instance, to configure interface ed0 with IP address
129.133.10.10, use the command:
ifconfig ed0 129.133.10.10
and to configure interface ep0 with IP address
128.32.240.167 and a special netmask, 0xffffff00, use
the command:
ifconfig ep0 128.32.240.167 netmask 0xffffff00
If your board selects software selection of the
ethernet interface to use, you might have to add
special flags to the "ifconfig" command you use.
Consult the table below for the appropriate flags:
Interface Type Connector Flags
--------- ---- --------- -----
ed with WD/SMC* BNC [none necessary]
ed with WD/SMC* UTP [none necessary]
ed with WD/SMC* AUI link0
ed with 3c503 BNC [none necessary]
ed with 3c503 AUI link0
ep BNC [none necessary]
ep AUI link0
ep UTP link0 link1
* Older WD boards do not support software configuration,
and must be configured via jumpers. These flags
will have no effect on them.
In other words, if, in the last example, the AUI port
of the board were being used, you would use the
command:
ifconfig ep0 128.32.240.167 netmask 0xffffff00 link0
If the NFS server or FTP server is not on a directly-
connected network, you need to set up a route to it
using a command like:
route add default <gate_ipaddr>
where <gate_ipaddr> is your gateway's numeric IP
address.
If you are NFS-mounting the distribution sets, mount
them on the temporary directory with a command like:
mount -t nfs <serv_ipaddr>:<dist_dir> <tmp_dir>
where <serv_ipaddr> is the server's numeric IP address,
<dist_dir> is the path to the distribution files on
the server, and <tmp_dir> is the name of the local
temporary directory.
Once this is done, proceed as if you had loaded the
files from tape, changing to the appropriate
directories, running "Set_tmp_dir", and running
"Extract" as appropriate.
If you are retrieving the distribution sets using ftp,
change into the temporary directory, and execute the
command:
ftp <serv_ipaddr>
where <serv_ipaddr> is once again the server's numeric
IP address. Get the files with FTP, taking care to
use binary mode when transferring the files.
Once you have all of the files for the distribution
sets that you wish to install, you can proceed using
the instructions above, as if you had installed from a
floppy. (Note that as with the floppy install, if
you're short on disk space, you can transfer only one
set at a time, extract it, then delete it, to save
space.)
Once you have finished extracting all of the distribution sets
that you wish to install, and are back at the "#" prompt, you
are ready to configure your system. The configuration utility
expects that you have installed the "base11" and "etc11"
distribution sets. If you have not, you will not be able to
run it successfully (nor will you have a functional system, in
any case). To configure your newly-installed OpenBSD system,
run the command "Configure". It will ask you for the system's
host name, domain name, and other network configuration
information. It will set up your configuration files and make
the device nodes for the newly-installed system.
Kernel Installation:
Enter "halt" at the prompt to halt the system. When the
system is halted, remove the "inst-11" floppy from the floppy
drive, and replace it with the OpenBSD 1.1 kernel-copy floppy
that you previously booted from. Reboot with that floppy.
with that floppy.
Once again, you will be prompted to insert a file system
floppy. DO NOT replace the kernel-copy floppy, just hit any
key.
Again, While booting, you may see several warnings. You may
be warned that no swap space is present, that init(8) cannot
find /etc/rc, and that one or more databases with names like
"pwd.db" cannot be found. Do not be alarmed, as, again, these
are completely normal. Hit return at the prompt asking you
for a shell name.
You will be presented with a shell prompt, at which you should
enter the "copy_kernel" command. It will ask you what
partition to copy the kernel to, and you should reply with the
name of your root partition (e.g. sd0a or wd0a).
You will be asked if you are sure that you want to copy the
kernel. Reply affirmatively, and it will check the file
system on your root partition, mount it, and copy the kernel.
Once the kernel is copied, you should use "halt" to halt the
system.
Once the system is halted, remove the kernel-copy floppy from
the floppy disk drive, and hit any key to reboot.
Congratulations, you have successfully installed OpenBSD 1.1. When you
reboot into OpenBSD, you should log in as "root" at the login prompt.
There is no initial password, but if you're using the machine in a
networked environment, you should create yourself an account and
protect it and the "root" account with good passwords.
Some of the files in the OpenBSD 1.1 distribution might need to be
tailored for your site. In particular, the /etc/sendmail.cf file will
almost definitely need to be adjusted, and other files in /etc will
probably need to be modified, as well. If you are unfamiliar with
UN*X-like system administration, it's recommended that you buy a book
that discusses it.
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