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Installation is supported from several media types, including:
DOS partitions
FFS partitions
EXT2 partitions
Tape
Remote NFS partition
FTP
HTTP
No matter which installation medium you choose, you'll need to have
a floppy disk (1.44Mb required).
If you are using a UN*X-like system to write the floppy image to
disk, you should use the "dd" command to copy the file system image
(floppy{:--:}OSrev.fs) directly to the raw floppy disks. It is suggested that
you read the dd(1) manual page or ask your system administrator to
determine the correct set of arguments to use; it will be slightly
different from system to system, and a comprehensive list of the
possibilities is beyond the scope of this document.
If you are using DOS to write the floppy image to disk, you should
use the "rawrite" utility, provided in the "OSREV/tools" directory of
the OpenBSD distribution. It will write the file system image
(floppy{:--:}OSrev.fs) to a disk.
If you are using NT to write the floppy image to disk, you should
use the "ntrw" utility, provided in the "OSREV/tools" directory of
the OpenBSD distribution, instead
Note that when installing, the floppy can be write-protected (i.e.
read-only).
Obviously, the steps necessary to prepare the distribution sets for
installation or upgrade depend on which installation medium you
choose. The steps for the various media types are outlined below.
To install or upgrade OpenBSD using a tape, you need to do the
following:
To install OpenBSD from a tape, you need to make a tape that
contains the distribution set files, in "tar" format. If
you're making the tape on a UN*X-like system, the easiest way
to do so is probably something like:
tar cf <tape_device> <dist_directories>
where "<tape_device>" is the name of the tape device that
describes the tape drive you're using (possibly /dev/rst0, or
something similar, but it will vary from system to system.
(If you can't figure it out, ask your system administrator.)
In the above example, "<dist_directories>" are the
distribution sets' directories, for the distribution sets you
wish to place on the tape. For instance, to put the "base{:--:}OSrev",
"etc{:--:}OSrev", and "bsd" distributions on tape (in order to do the
absolute minimum installation to a new disk), you would do the
following:
cd .../OSREV # the top of the tree
cd MACHINE/
tar cf <tape_device> base{:--:}OSrev etc{:--:}OSrev bsd
(Note that you still need to fill in "<tape_device>" in the
example.)
Once you have the files on the tape, you can proceed to the
next step in the installation or upgrade process. If you're
installing OpenBSD from scratch, go to the section on preparing
your hard disk, below. If you're upgrading an existing
installation, go directly to the section on upgrading.
To install or upgrade OpenBSD using a remote partition, mounted via
NFS, you must do the following:
NOTE: This method of installation is recommended only for
those already familiar with using BSD network
configuration and management commands. If you aren't,
this documentation should help, but is not intended to
be all-encompassing.
Place the OpenBSD distribution sets you wish to install into a
directory on an NFS server, and make that directory mountable
by the machine on which you are installing or upgrading OpenBSD.
This will probably require modifying the /etc/exports file on
the NFS server and resetting its mount daemon (mountd).
(Both of these actions will probably require superuser
privileges on the server.)
You need to know the numeric IP address of the NFS server,
and, if the server is not on a network directly connected to
the machine on which you're installing or upgrading OpenBSD,
you need to know the numeric IP address of the router closest
to the OpenBSD machine. Finally, you need to know the numeric
IP address of the OpenBSD machine itself.
Once the NFS server is set up properly and you have the
information mentioned above, you can proceed to the next step
in the installation or upgrade process. If you're installing
OpenBSD from scratch, go to the section on preparing your hard
disk, below. If you're upgrading an existing installation, go
directly to the section on upgrading.
If you are upgrading OpenBSD, you also have the option of installing
OpenBSD by putting the new distribution sets somewhere in your existing
file system, and using them from there. To do that, you must do the
following:
Place the distribution sets you wish to upgrade somewhere in
your current file system tree. At a bare minimum, you must
upgrade the "base" binary distribution, and so must put the
"base{:--:}OSrev" set somewhere in your file system. If you wish,
you can do the other sets, as well, but you should NOT upgrade
the "etc" distribution; the "etc" distribution contains system
configuration files that you should review and update by hand.
Once you have done this, you can proceed to the next step in
the upgrade process, actually upgrading your system.
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