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It is possible to easily upgrade your existing OpenBSD/hp300 system
using the upgrade program in the miniroot. If you wish to upgrade
your system by this method, simply select the `upgrade' option once
the miniroot has booted. The upgrade program with then guide you
through the procedure. The upgrade program will:
* Enable the network based on your system's current
network configuration.
* Mount your existing filesystems.
* Extract binary sets from the media of your choice.
* Fixup your system's existing /etc/fstab, changing the
occurrences of `ufs' to `ffs' and let you edit the
resulting file.
* Make new device nodes in your root filesystem.
* Copy a new kernel onto your root partition.
NOTE: the existing kernel WILL NOT be backed up; doing
so would be pointless, since a OpenBSD 1.0 kernel will
not run OpenBSD 2.0 executables.
* Install a new boot block.
* Check your filesystems for integrity.
While using the miniroot's upgrade program is the preferred method
of upgrading your system, it is possible to upgrade your system
manually. To do this, follow the following procedure:
* Place _at least_ the `base' binary set in a filesystem
accessible to the target machine. A local filesystem
is preferred, since there may be incompatibilities
between the OpenBSD 2.0 kernel and older route(8)
binaries.
* Back up your pre-existing kernel and copy the 2.0
kernel into your root partition.
* Reboot with the 2.0 kernel into single-user mode.
* Check all filesystems:
/sbin/fsck -p
* Mount all local filesystems:
/sbin/mount -a -t nonfs
* If you keep /usr or /usr/share on an NFS server, you
will want to mount those filesystems as well. To do
this, you will need to enable the network:
sh /etc/netstart
NOTE: the route(8) commands may fail due to potential
incompatibilities between route(8) and the OpenBSD 2.0
kernel. Once you have enabled the network, mount the
NFS filesystems. If you use amd(8), you may or may not
have to mount these filesystems manually. Your mileage
may vary.
* Make sure you are in the root filesystem and extract
the `base' binary set:
cd /
tar -xzvpf /path/to/base20.tar.gz
NOTE: the `--unlink' option is _very_ important!
* Install a new boot block:
cd /usr/mdec
disklabel -B <root disk, e.g. sd0>
* Sync the filesystems:
sync
* At this point you may extract any other binary sets
you may have placed on local filesystems, or you may
wish to extract additional sets at a later time.
To extract these sets, use the following commands:
cd /
tar -xzvpf <path to set>
NOTE: you SHOULD NOT extract the `etc' set if upgrading. Instead, you
should extract that set into another area and carefully merge the changes
by hand.
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