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OpenBSDInstallPrelude
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. If your BIOS uses translated geometry, you
should use this geometry for the remainder of the install. This is
only necessary if you are sharing the disk with other operating systems
that use the translated geometry.
There are several ways to install OpenBSD onto a disk. The easiest way,
should your computer support it, is to boot off the CD-ROM. Otherwise,
you can boot from a 3.5" 1.44MB floppy disk.
OpenBSDInstallPart2
With either the CD-ROM or the floppy in the drive, reboot your
computer. You might have to play with your BIOS options to let the
computer boot from the installation media, rather than the hard
disk.
It will take a while to load the kernel from a floppy or slow
speed CD-ROM drive, most likely more than a minute. If some
action doesn't eventually happen, or the spinning cursor has
stopped and nothing further has happened, either your boot floppy
is bad or you are having hardware problems. If trying another
floppy disk doesn't help, 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.
OpenBSDBootMsgs
You will next be asked for your terminal type. You should just
hit return to select the default (vt220).
Now you will be asked whether you wish to do an "install"
or an "upgrade". Enter 'i' for a fresh install or 'u' to
upgrade an existing installation.
You will be presented with a welcome message and asked if
you really wish to install (or upgrade).
The install program will then tell you which disks of that
type it can install on, and ask you which it should use. The
name of the disk is typically "wd0" for IDE/RLL/ESDI/ST506
drives or "sd0" for SCSI drives. Reply with the name of your
disk.
Next you will have to edit or create a disk label for the disk
OpenBSD is being installed on. If there are any existing
partitions defined (for any operating system), and a disk label
is not found, you will first be given an opportunity to run
fdisk and create an OpenBSD partition.
If fdisk is being invoked on your behalf, it will start by
displaying the current partitions defined and then allow you
to modify this information, add new partitions and change
which partition to boot from by default. If you make a mistake,
you will be allowed to repeat this procedure as necessary to
correct this. Note that you should make OpenBSD be the active
partition at least until the install has been completed.
Next the disk label which defines the layout of the OpenBSD
file systems must be set up. The installation script will
invoke an interactive editor allowing you to do this. Note
that partition 'c' inside this disk label should ALWAYS
reflect the entire disk, including any non-OpenBSD portions.
If you are labeling a new disk, you will probably start
out with an 'a' partition that spans the disk. In this case
You should delete 'a' before adding new partitions.
The root file system should be in partition 'a', and swap
is usually in partition 'b'. If you have DOS or Linux
partitions defined on the disk, these will usually show up
as partition 'h', 'i' and so on. It is recommended that
you create separate partitions for /usr, /tmp, and /var, and
if you have room for it, one for /home. In doing this, remember
to skip 'c', leaving it as type "unused". Create your next
partition as 'd' and continue from there with any additional
partitions. If you have DOS or Linux partitions defined on the
disk, these will usually show up as partition 'h', 'i', and
so on.
When you are finished with disklabel you will be prompted for
the mount points for the partitions in the current label.
For help in the disk label editor, enter '?' or 'M' to view
the manual page (see the info on the ``-E'' flag).
Note that all OpenBSD partitions in the disk label must have an
offset that makes it start within the OpenBSD part of the disk,
and a size that keeps it inside of that portion of the disk. This
is within the bounds of the 'c' partition if the disk is not being
shared with other operating systems, and within the OpenBSD fdisk
partition if the disk is being shared.
The swap partition (usually 'b') should have a type of "swap", all
other native OpenBSD partitions should have a type of "4.2BSD".
Block and fragment sizes are usually 8192 and 1024 bytes, but can
also be 4096 and 512 or even 16384 and 2048 bytes.
The install program will now label your disk and ask which file
systems should be created on which partitions. It will auto-
matically select the 'a' partition to be the root file system.
Next it will ask for which disk and partition you want a file
system created on. This will be the same as the disk name (e.g.
"wd0") with the letter identifying the partition (e.g. "d")
appended (e.g. "wd0d"). Then it will ask where this partition is
to be mounted, e.g. /usr. This process will be repeated until
you enter "done".
At this point you will be asked to confirm that the file system
information you have entered is correct, and given an opportunity
to change the file system table. Next it will create the new file
systems as specified, OVERWRITING ANY EXISTING DATA. This is the
point of no return.
After all your file systems have been created, the install program
will give you an opportunity to configure the network. The network
configuration you enter (if any) can then be used to do the install
from another system using HTTP or FTP, and will also be the
configuration used by the system after the installation is complete.
If you select to configure the network, the install program will
ask you for a name of your system and the DNS domain name to use.
Note that the host name should be without the domain part, and that
the domain name should NOT {:-include-:} the host name part.
Next the system will give you a list of network interfaces you can
configure. For each network interface you select to configure, it
will ask for the IP address to use, the symbolic host name to use,
the netmask to use and any interface-specific flags to set. The
interface-specific flags are usually used to determine which media
the network card is to use. The flags usually carry the following
meaning:
-link0 -link1 Use BNC (coaxial) port [default]
link0 -link1 Use AUI port
link0 link1 Use UTP (twisted pair) port
After all network interfaces have been configured the install pro-
gram will ask for a default route and IP address of the primary
name server to use. You will also be presented with an opportunity
to edit the host table.
At this point you will be allowed to edit the file system table
that will be used for the remainder of the installation and that
will be used by the finished system, following which the new file
systems will be mounted to complete the installation.
After these preparatory steps have been completed, you will be
able to extract the distribution sets onto your system. There
are several install methods supported; FTP, HTTP, tape, CD-ROM,
or a local disk partition. Note that installation from floppies
is not currently supported.
OpenBSDFTPInstall
OpenBSDHTTPInstall
OpenBSDTAPEInstall
OpenBSDCDROMInstall
OpenBSDDISKInstall({:-"wdN" or -:},,{:- or MS-DOS-:})
OpenBSDCommonFS
OpenBSDCommonURL
OpenBSDCongratulations
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