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dnl $OpenBSD: install,v 1.15 2020/05/17 17:04:28 deraadt Exp $
OpenBSDInstallPrelude
There are several ways to install OpenBSD onto a disk. The easiest way
in terms of preliminary setup is to use the OpenBSD miniroot that can be
booted off your local disk's swap partition. Alternatively, you can
use the OpenBSD bootblocks and the ramdisk kernel, bsd.rd, copied to an
existing UniOS partition.
Booting from the Installation Media:
Prior to attempting an installation, everything of value on the target
system should be backed up. While installing OpenBSD does not necessarily
wipe out all the partitions on the hard disk, errors during the install
process can have unforeseen consequences and will probably leave the system
unbootable if the installation process is not completed. Availability
of the installation media for the prior installation, such as a LUNA-88K
UniOS tape, is always a good insurance, should it be necessary to "go back"
for some reason.
After taking care of all that, the system should be brought down gracefully
using the shutdown(8) and/or halt(8) commands, which will eventually go
back to the PROM prompt. Remember that the leftmost switch from the front
panel DIP switch #1 must be down to access the PROM prompt.
Booting from an existing partition:
Copy the OpenBSD/MACHINE boot loader on one of the first 8 partitions
(a-h). Copy the installation kernel (bsd.rd) to the same partition.
At the PROM prompt, enter
b sd(n,p) boot
to boot the OpenBSD bootloader from the specified disk and partition.
Replace 'p' with the partition number (usually 0, for the 'a' partition),
and 'n' with the appropriate number from the following table:
disk drive SCSI ID: 0 1 2 3 4 5 6
value of 'n': 6 5 4 3 2 1 0
On LUNA-88K2 systems, if the disk drive is connected to the external SCSI
controller, add 10 to this number. For example, to boot from a disk drive
with ID #0 connected to the external controller, enter:
b sd(10,0)boot
Once the OpenBSD bootloader starts, press any key to stop the countdown
if the ``boot>'' prompt does not appear.
Then, boot the installation kernel from the same partition:
boot sd(n,p)bsd.rd
Booting from the miniroot:
Copy the OpenBSD/MACHINE miniroot to the swap partition (assuming your
disk is sd0):
dd if=miniroot{:--:}OSrev.img of=/dev/sd0b
After halting the system, at the PROM prompt, enter
b sd(n,1)
to boot the OpenBSD bootloader from the swap partition.
Once the OpenBSD bootloader starts, press any key to stop the countdown
if the ``boot>'' prompt does not appear.
Then, boot the installation kernel from the same partition:
boot sd(n,1)
Installing the system:
OpenBSDInstallPart2
Boot your machine from the installation media as described above.
It will take a while to load the kernel especially from a slow
network connection, 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 media is bad, your
diskless setup isn't correct, or you may have a hardware or
configuration problem.
OpenBSDInstallPart3(,"sd0")
OpenBSDInstallPart4
OpenBSDInstallPart5
OpenBSDInstallPart6({:-CD-ROM, NFS, -:})
OpenBSDURLInstall
OpenBSDCDROMInstall
OpenBSDNFSInstall
OpenBSDDISKInstall(,{:-only -:})
OpenBSDCommonInstall
OpenBSDInstallWrapup
OpenBSDCongratulations
OpenBSDUnattendedInstallation
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