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Installation is supported from several media types, including:
AmigaDOS Fast file system partitions
Berkeley FFS partitions
Tape
Remote NFS partition
FTP
HTTP
The installation program is run under a minimal OpenBSD environment
provided by one of two means: a ramdisk or a miniroot filesystem.
We recommend using the ramdisk if your machine is big enough (at
least 6MB of fastmem is required), otherwise a miniroot filesystem
needs to be transferred to the OpenBSD swap partition. This can be
done from AmigaDOS in the case of a new install or upgrade, or from
OpenBSD when doing an upgrade. See the "Preparing your System for
OpenBSD Installation" section for details.
The steps necessary to prepare the distribution sets for
installation depend on which method of installation you choose.
The various methods are explained below. However, for all methods
you need to transfer a OpenBSD kernel binary to your AmigaDOS
partition, optionally you must also get the miniroot image there
for later transfer to your swap partition as explained elsewhere.
For ramdisk installs you need to get both the bsd and bsd.rd
kernel images, and for miniroot installs you need bsd and the
miniroot23.fs image.
To prepare for installing via an AmigaDOS partition:
To install OpenBSD from an AmigaDOS partition, you need to
get the OpenBSD distribution sets you wish to install
on your system on to an AmigaDOS fast file system partition.
All of the set_name.tar.gz pieces can be placed in a single
directory instead of separate ones for each distribution set.
This will also simplify the installation work later on.
Note where you place the files, you will need this later.
Also, it might be a good idea to type down the AmigaDOS
partition structure of the disk you put these files on. In
the context of the install program you will only be able to
identify the partition by starting sector (block) number
and/or size. The partition names are *not* available.
Once you have done this, you can proceed to the next
step in the installation process, preparing your hard disk.
To prepare for installing via a tape:
To install OpenBSD from a tape, you need to somehow
get the OpenBSD filesets you wish to install on
your system on to the appropriate kind of tape,
in tar format.
If you're making the tape on a UN*X system, the easiest
way to do so is:
tar cvf <tape_device> <files>
where "<tape_device>" is the name of the tape device
that describes the tape drive you're using (possibly
something like /dev/nrst0, but we make no guarantees 8-).
If you can't figure it out, ask your system administrator.
"<files>" are the names of the "set_name.tar.gz" files
which you want to be placed on the tape.
Once you have done this, you can proceed to the next
step in the installation process, preparing your hard disk.
To prepare for installing via NFS:
Place the OpenBSD software you wish to install into
a directory on an NFS server, and make that directory
mountable by the machine which you will be installing
OpenBSD on. This will probably require modifying the
/etc/exports file of the NFS server and resetting
mountd, acts which will require superuser privileges.
Note the numeric IP address of the NFS server and of
the router closest to the the new OpenBSD machine,
if the NFS server is not on a network which is
directly attached to the OpenBSD machine.
Once you have done this, you can proceed to the next
step in the installation process, preparing your hard disk.
To prepare for installing via FTP/HTTP:
The preparations for this method of installation
are easy: all you have to do is make sure that
there's some FTP- or website from which you can
retrieve the OpenBSD installation when it's time to
do the install. You should know the numeric IP
address of that site, and the numeric IP address of
your nearest router if one is necessary
Once you have done this, you can proceed to the next
step in the installation process, preparing your hard disk.
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
"base23.tar.gz" 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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