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# $Id: README,v 1.3 1995/11/26 18:19:15 deraadt Exp $
Initial test versions of a OpenBSD/sparc binaries install are available
at
ftp.openbsd.org:/pub/OpenBSD/snapshots/sparc
Some mirror sites may take a day or two to catch up.
The OpenBSD/sparc port runs on sun4c class machines, ie. the SS 1, 1+,
2, IPC, IPX, SLC, and ELC. It also runs on most models of the sun4
line. it does not run on the 4/400, 4/600, or any sun4m machines (SS5,
SS4, SS10, SS20).
The ftp directory contains a number of very large .tar.gz files in there,
as well as this document and a helper install script.
NOTE: THESE INSTRUCTIONS MAY CHANGE WITH EACH SNAPSHOT.
Until there are better instructions written, here's a rough idea:
1. format and partition the disk using sunos. yup, OpenBSD/sparc uses
sunos disk labels. i am running a quantum 105 with these partition
sizes:
a: 28140 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 133)
b: 16170 28140 unused 0 0 # (Cyl. 134 - 210)
c: 204540 0 unused 0 0 # (Cyl. 0 - 973)
g: 160230 44310 4.2BSD 1024 8192 16 # (Cyl. 211 - 973)
Filesystem 512-blocks Used Avail Capacity Mounted on
/dev/sd0a 26090 18846 4634 80% /
/dev/sd0g 149444 131496 3002 98% /usr
amd:43 0 0 0 100% /home
gecko:/usr/src 1549722 851783 542966 61% /usr/src
komodo:/usr/local 269346 243428 -1016 100% /usr/local
newt:/newt.usera 1128328 836910 178584 82% /tmp_mnt/newt/newt.usera
2. newfs it using sunos. yup, the filesystem format is identical.
UFS hasn't changed much over the years. (If you can, there is
a performance benefit from newfs'ing using OpenBSD.)
If you newfs using the OpenBSD newfs command, be sure to use -O
to specify the `4.3BSD filesystem format' for your / partition,
otherwise you will not be able to boot. The SunOS boot blocks do
not understand the extended 4.4 filesystem format.
3. put a SunOS /boot program in the root partition, and use
"installboot" to cause it to work. the "installboot" man page
says to do something like this: say you are running SunOS, and
the drive you are installing OpenBSD/sparc on is currently at
/dev/sd1. You have made the filesystems on that drive already.
# mount /dev/sd1a /mnt
# cp /boot /mnt/boot
# /usr/mdec/installboot -vlt /mnt/boot /usr/mdec/bootsd /dev/rsd1a
4. extract the provided *.tar.gz files onto the disk. the file
"install.sh" will help you do this.
mount your partition(s) in a proper tree starting at /mnt. In the
same directory as your *.tar.gz files are, run "./install.sh".
(Now you may cut the head off the chicken and spray the blood over
your walls and ceiling. :-)
5. copy /mnt/etc/fstab.sd to /mnt/etc/fstab and edit to match your
disk layout.
6. the install script copies the kernel called "bsd.scsi3" to
/mnt/bsd. Two sample kernels are supplied: "bsd" and
"bsd.scsi3".
Unlike SunOS and the ROM, OpenBSD numbers scsi drives sequentially
as it finds them. The drive with the lowest scsi-id will be called
sd0. SunOS and the ROM map normally map sd0 to scsi-id 3. Thus, if
you have two drives, it's quite likely that OpenBSD will disagree with
the ROM.
The "bsd.scsi3" kernel gets around this problem, by hard-wiring
scsi-id#3 to sd0. The remaining drives will be dynamically mapped
to other sd* numbers. If you have more than one drive you will
want to use this kernel.
the "bsd" kernel expects your root drive to be at the standard
SunOS sd0==scsi-id#3 location. If you have a second drive at any
of scsi-id's 0, 1, or 2, this kernel will NOT work for you. If you
know what you are doing, you could use this kernel.
7. your ROM may need some setup. make sure you boot from `new command mode'.
If your machine comes up and gives you a `>' prompt instead of `ok', type:
>n
ok setenv sunmon-compat? false
ok
this is needed because bsd cannot handle the old-mode yet,
and will firework on you.
you cannot use the security modes of the sparc ROM. sorry, same
problem as above.
ok setenv security-mode none
8. if needed, swap your scsi id's. now try a reboot. initially I'd
suggest you boot "-bs", then try multiuser after that. if you boot
single-user the bsd incantation for making root read-write
is "mount -u /dev/sd0a /". alternatively, the command reboot is
found in /sbin.
9. to boot from bsd by default, tell something like this to your
ROM.
>n
ok setenv boot-from sd(0,0,0)bsd
ok
please let me know of any errors in these instructions or in the
archives. if so i'll correct them.
good luck.
<deraadt@openbsd.org>
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