dnl $OpenBSD: install,v 1.62 2004/03/25 08:38:52 tom 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. The normal way is to use the OpenBSD CD-ROM, or the bootable CD-ROM mini image, or an installation floppy, or an installation tape, depending on your hardware. If your Sparc is hooked up to a network, try and find a server to arrange for a diskless setup. This is a convenient way to install on a machine whose disk does not currently hold a usable operating system. This is difficult to get set up correctly the first time, but easy to use afterwards. (See ``Installing using a diskless setup'' below.) It is also possible to install OpenBSD "manually" from a running SunOS or Solaris system, using the system tools, as well as gunzip (and gnu tar on SunOS); see ``Installing from SunOS'' or ``Installing from Solaris'' below. Booting from the Installation Media: Prior to attempting an installation, you should make sure that everything of value on the target system has been 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 you will probably render the system unbootable if you start, but do not complete the installation. Having the installation media for the prior installation, be it a SunOS or OpenBSD CD-ROM or OpenBSD install diskettes, is good insurance if you want to be able to "go back" for some reason. After taking care of all that, bring your system down gracefully using the shutdown(8) and/or halt(8) commands. This will get you to the monitor prompt. Sun PROM monitor commands and setup differ considerably depending on the system architecture and age; you may needed to reference the PROM monitor manual for your system for details. There are four main cases: sun4 (older servers, deskside workstations): prompt is a ">", boot command is "b", uses sd(c,s,p) syntax with s defined as scsi-unit*8+lun in hex OpenBoot Version 1 (newer servers, desktop workstations): prompt is "ok", boot command is "boot" uses sd(c,s,p) syntax with s defined as scsi-unit. OpenBoot Version 2 (newer servers, desktop workstations): prompt is "ok", boot command is "boot" uses diskn:p syntax. OpenBoot Version 2 (certain newer desktop workstations): prompt is "ok", boot command is "boot" uses diskn syntax unless booting from a non-standard partition, in which case: boot /sbus/esp/sd@t,0:p bsd (where "t" is the scsi target, and "p" is the partition. examples would be t="3" and p="b") If you expect your workstation to have an OpenBoot Prom but get a ">", enter the "n" command to enter the "new command mode". You can set this as the default by doing a "setenv sunmon-compat? false" command, followed by a "reset" command. Note that OpenBoot Proms also do the Sun SCSI-ID shuffle for disks; this is described elsewhere in some detail. For the purposes of this section, drive 0 refers to the internal or first SCSI drive, which usually has a SCSI-ID of 3. Booting from Floppy Disk installation media: ok boot fd()bsd # for version 1 OpenBOOT ROMs ok boot floppy bsd # for version 2 OpenBOOT ROMs This will cause the kernel contained in the floppy to be booted. Booting from CD-ROM installation media: > b sd(,30,0)OSREV/MACHINE/bsd.rd # for Sun4 monitors* # (not working currently) ok boot sd(,6,0)OSREV/MACHINE/bsd.rd # for version 1 OpenBOOT ROMs ok boot cdrom OSREV/MACHINE/bsd.rd # for version 2 OpenBOOT ROMs If the boot is successful, you will get a loader version message, executable sizes, and then the kernel copyright and device probe messages. Boot failure modes are typically a lot of CD-ROM drive activity, but no messages or complaints about magic numbers, checksums or formats. Not all MACHINE systems support bootable CD-ROM and the current boot image is only known to work on sun4c and sun4m architectures. If it does not work, you'll have to create a boot floppy or bootable hard disk using the instructions under preparing boot media. Booting from SCSI disk (miniroot or floppy image): Boot the miniroot by typing the appropriate command at the PROM: > b sd(,,1)bsd # for sun4 monitors* ok boot sd(,,1)bsd # for version 1 OpenBOOT ROMs ok boot disk:b bsd # for version 2 OpenBOOT ROMs ok boot /sbus/esp/sd@3,0:b bsd # for version 2 OpenBOOT ROMs # that won't take disk:p syntax. If you've loaded the miniroot onto some other disk than the default drive 0, modify the boot specifier accordingly, keeping in mind the drive vs. SCSI-ID shuffling and partition a=0, b=1... > b sd(0,10,1)bsd # example - scsi target 2 on sun4 monitors* ok boot sd(0,3,1)bsd # example - scsi target 0 on v1 OpenBOOT ROM ok boot disk3:b bsd # example - scsi target 0 on v2 OpenBOOT ROM ok boot /sbus/esp/sd@0,0:b bsd # example - scsi target 0 on v2 # OpenBOOT ROM that won't take # disk:p syntax. (*) for sun4 this is scsi-target*8+scsi-lun (usually 0) expressed in hex... Booting from SCSI tape: Boot the miniroot by typing the appropriate command at the PROM: > b st(,,1) # for sun4 monitors # (not working currently) ok boot st(,,1) # for version 1 OpenBOOT ROMs ok boot tape:1 # for version 2 OpenBOOT ROMs ok boot /sbus/esp/st@4,0:1 # for version 2 OpenBOOT ROMs # that won't take tape:n syntax. The above instructions assume your tape drive is the default tape drive using SCSI ID 4. If your drive uses ID 5, modify the boot command accordingly: > b st(,28,1) # example - 2nd tape drive on sun4 monitors ok boot st(,5,1) # example - 2nd tape drive on v1 OpenBOOT ROM ok boot tape1:1 # example - 2nd tape drive on v2 OpenBOOT ROM ok boot /sbus/esp/st@5,0:1 # example - 2nd tape drive on v2 # OpenBOOT ROM that won't take # tape:n syntax Installing using a diskless setup: First, you must set up a diskless client configuration on a server. If you are using an OpenBSD system as the boot-server, have a look at the diskless(8) manual page for guidelines on how to proceed with this. If the server runs another operating system, you'll have to consult documentation that came with it (on SunOS systems, add_client(8) and the Sun System/Networks administrators guide constitute a good start; on Solaris systems, share(1M) is a good starting point as well). Boot your workstation from the server by entering the appropriate `boot' command at the monitor prompt. Depending on the PROM version in your machine, this command takes one of the following forms: > b le()bsd.rd # for sun4 monitors ok boot le()bsd.rd # for version 1 OpenBOOT ROMs ok boot net bsd.rd # for version 2 OpenBOOT ROMs Installing using the Floppy, CD-ROM, tape, miniroot or netboot procedure: OpenBSDInstallPart2 Boot your machine from the installation media as described above. It will take a while to load the kernel especially from a floppy or 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. OpenBSDBootMsgs While booting, you will probably see several warnings. You may be warned that the kernel can't figure out what device it booted from. Do not be alarmed, this is completely normal. This warning occurs because while OpenBSD/MACHINE can boot from the floppy drive, the kernel itself lacks a floppy driver for some MACHINE models. You will next be asked for your terminal type. If you are installing from a keyboard/monitor console, the default of "sun" is correct. If you are installing from a serial console you should choose the terminal type from amongst those listed. (If your terminal type is xterm, just use vt100.) OpenBSDInstallPart3 OpenBSDInstallPart4 OpenBSDInstallPart5(sd0) OpenBSDInstallNet({:-CD-ROM, -:},nofloppy) OpenBSDFTPInstall OpenBSDHTTPInstall OpenBSDTAPEInstall(3) OpenBSDCDROMInstall OpenBSDDISKInstall(,{:-only -:}) OpenBSDCommonFS OpenBSDCommonURL After completing an installation: Now try a reboot. (If needed, swap your SCSI IDs first.) The Sun monitor normally tries to load a file called "vmunix". On OpenBOOT ROM systems you can change it to load OpenBSD instead using the following commands: On version 1 OpenBOOT ROMs: >n ok setenv boot-from sd(0,0,0)bsd ok On version 2 OpenBOOT ROMs: ok setenv boot-file bsd ok setenv boot-device /sbus/esp/sd@0,0 On sun4 systems, you may not need to specify the boot file, as the OpenBSD boot blocks will look for "bsd" on the boot device by default. OpenBSDCongratulations If you will be running your OpenBSD system from a serial console, you may need to edit /etc/ttys and change the terminal type, and getty method from "sun" and "suncons" to "vt100" and "std.9600" or something similar. Also when running from a serial console, you may wish to adjust the eeprom settings for input-device, output-device, screen-#columns, and screen-#rows as appropriate. In order to use 'tip' on OpenBSD/MACHINE, you'll need to edit /etc/ttys and add "local" to the end of the tty configuration line, and run 'ttyflags -a' to put your changes into effect. Installing from SunOS: You need a SunOS machine to install OpenBSD. You also need at least the following pieces: - the *.tgz files you want to install (as a minimum, base{:--:}OSrev.tgz and etc{:--:}OSrev.tgz) - gunzip (GNU gzip) SunOS binary - gtar (GNU tar) SunOS binary - a "/boot" file from a SunOS machine that matches your machine type (e.g. sun4m or sun4c) - an OpenBSD kernel, most likely "/bsd" All these pieces, except "/boot" and the GNU utilities, are supplied in the OpenBSD/MACHINE distribution. You need to format and partition the disk using SunOS (since OpenBSD/MACHINE uses SunOS disk labels.) Give yourself adequate partition sizes. Here is an example layout: partition size offset will be.. sd0a 80000 0 / sd0b 256000 80000 swap sd0c 4165271 0 `whole disk' sd0d 100000 436000 /var sd0f 100000 336000 /tmp sd0g 3229271 936000 /usr sd0h 400000 536000 /var/tmp Use SunOS to newfs the partitions which will have filesystems on them. (OpenBSD's filesystem format is almost identical to SunOS.) sunos# newfs /dev/rsd0a [... lots of output] Repeat for any other partition (in this example, /dev/rsd0d, /dev/rsd0f, /dev/rsd0g, /dev/rsd0h). NOTE: If you are able to, there is a performance benefit from newfs'ing using OpenBSD. If you newfs using the OpenBSD newfs command, be sure to use the -O flag for your / partition, so that newfs will use the 4.3BSD filesystem format, rather than the new 4.4BSD filesystem format. If you forget, you will not be able to boot -- the SunOS boot blocks do not understand the extended 4.4BSD filesystem format. Mount those partitions in a tree formation, under /mnt; ie: sunos# df Filesystem kbytes used avail capacity Mounted on [...] /dev/sd0a 38427 0 38427 0% /mnt /dev/sd0d 48249 0 48249 0% /mnt/var /dev/sd0f 48249 0 48249 0% /mnt/tmp /dev/sd0g 1564024 0 1564024 0% /mnt/usr /dev/sd0h 193536 0 193536 0% /mnt/var/tmp Place a standard SunOS "boot" program in /mnt (your new root partition), and use the SunOS command "installboot" to make it work. The installboot man page says to do something like this: sunos# cp /usr/mdec/sdboot /mnt/boot sunos# sync; sync sunos# /usr/mdec/installboot -vlt /mnt/boot /usr/mdec/bootsd /dev/rsd2a You can now extract the provided "*.tgz" files onto your disk. sunos# ls -FC base{:--:}OSrev.tgz comp{:--:}OSrev.tgz man{:--:}OSrev.tgz xfont{:--:}OSrev.tgz bsd etc{:--:}OSrev.tgz misc{:--:}OSrev.tgz xserv{:--:}OSrev.tgz bsd.scsi3 game{:--:}OSrev.tgz xbase{:--:}OSrev.tgz sunos{:-#-:} gunzip < base{:--:}OSrev.tgz | (cd /mnt; gtar xvpf -) [...] for each set And finally copy an OpenBSD kernel (either bsd or bsd.scsi3) onto your disk. sunos# cp bsd.scsi3 /mnt/bsd The GNU gunzip and gtar programs are not distributed as part of SunOS, but may be present in your /usr/local/bin. If not, you will need to obtain them from a GNU archive and install before proceeding. The OpenBSD tar files are in the "new format" that includes directory information, and the standard SunOS tar will not extract from them successfully. After the files have been extracted, set up /mnt/etc/fstab to match your actual disk layout. (Minus the "/mnt" component of each path, of course :-) Now proceed to reboot the machine and then customize your installation. Installing from Solaris: You need a machine running under Solaris to install OpenBSD. You will also need at least the following pieces: - the *.tgz files you want to install (as a minimum, base{:--:}OSrev.tgz and etc{:--:}OSrev.tgz) - gunzip (GNU gzip) Solaris binary - a boot block file from a Solaris machine that matches your machine type, for ufs filesystem, such as /usr/platform/`uname -i`/lib/fs/ufs/bootblk - an OpenBSD kernel, most likely "/bsd" All these pieces, except the boot block and the GNU utilities, are supplied in the OpenBSD/MACHINE distribution. You need to format and partition the disk using Solaris (since OpenBSD/MACHINE uses Sun compatible disk labels). Give yourself adequate partition sizes. Here is an example layout: solaris# prtvtoc -s /dev/rdsk/c0t1d0s2 * First Sector Last * Partition Tag Flags Sector Count Sector Mount Directory 0 2 00 0 80000 79999 / 1 3 01 80000 256000 335999 2 5 00 0 4165271 4165270 3 7 00 336000 100000 435999 /tmp 4 7 00 436000 100000 535999 /var 5 7 00 536000 400000 935999 /var/tmp 6 4 00 936000 3229271 4165270 /usr Use Solaris to newfs the partitions which will have filesystems on them. (OpenBSD's filesystem format is almost identical to Solaris.) solaris# newfs /dev/rdsk/c0t1d0s0 [... lots of output] Repeat for any other partition (in this example, /dev/rdsk/c0t1d0s3, /dev/rdsk/c0t1d0s4, /dev/rdsk/c0t1d0s5 and /dev/rdsk/c0t1d0s6). dnl XXX I had no time to check the -O restriction is still necessary. NOTE: If you are able to, there is a performance benefit from newfs'ing using OpenBSD. If you newfs using the OpenBSD newfs command, be sure to use the -O flag for your / partition, so that newfs will use the 4.3BSD filesystem format, rather than the new 4.4BSD filesystem format. If you forget, you will not be able to boot -- the Solaris boot blocks do not understand the extended 4.4BSD filesystem format. Mount those partitions in a tree formation, under /mnt; ie: solaris# df -k Filesystem kbytes used avail capacity Mounted on [...] /dev/dsk/c0t1d0s0 38427 0 38427 0% /mnt /dev/dsk/c0t1d0s3 48249 0 48249 0% /mnt/tmp /dev/dsk/c0t1d0s4 48249 0 48249 0% /mnt/var /dev/dsk/c0t1d0s5 193536 0 193536 0% /mnt/var/tmp /dev/dsk/c0t1d0s6 1564024 0 1564024 0% /mnt/usr Place the boot block in /mnt (your new root partition), and use the Solaris command "installboot" to make it work. The installboot man page says to do something like this: solaris# cp /usr/platform/`uname -i`/lib/fs/ufs/bootblk /mnt/bootblk solaris# sync; sync solaris# /usr/sbin/installboot /mnt/bootblk /dev/rdsk/c0t1d0s0 You can now extract the provided "*.tgz" files onto your disk. solaris# ls -FC base{:--:}OSrev.tgz comp{:--:}OSrev.tgz man{:--:}OSrev.tgz xfont{:--:}OSrev.tgz bsd etc{:--:}OSrev.tgz misc{:--:}OSrev.tgz xserv{:--:}OSrev.tgz bsd.scsi3 game{:--:}OSrev.tgz xbase{:--:}OSrev.tgz solaris{:-#-:} gunzip < base{:--:}OSrev.tgz | (cd /mnt; tar xvpf -) [...] for each set And finally copy an OpenBSD kernel (either bsd or bsd.scsi3) onto your disk. solaris# cp bsd.scsi3 /mnt/bsd The GNU gunzip program is not distributed as part of Solaris, but may be present in your /usr/local/bin. If not, you will need to obtain it from a GNU archive and install before proceeding. After the files have been extracted, set up /mnt/etc/fstab to match your actual disk layout. (Minus the "/mnt" component of each path, of course :-) Now proceed to reboot the machine and then customize your installation. Net Boot or Diskless Setup Information: The set up is similar to SunOS diskless setup, but not identical, because the Sun setup assumes that the bootblocks load a kernel image, which then uses NFS to access the exported root partition, while the OpenBSD bootblocks use internal NFS routines to load the kernel image directly from the exported root partition. Please understand that no one gets this right the first try, since there is a lot of setup and all the host daemons must be running and configured correctly. If you have problems, extract the diskless(8) manpage, find someone who's been through it before and use the host syslog and tcpdump(8) to get visibility of what's happening (or not). Your Sparcstation expects to be able to download a second stage bootstrap program via TFTP after having acquired its IP address through RevARP when instructed to boot "over the net". It will look for a filename composed of the machine's IP address followed by the machine's architecture, separated by a period. For example, a sun4c machine which has been assigned IP address 130.115.144.11, will make a TFTP request for `8273900B.SUN4C'. Normally, this file is a symbolic link to an appropriate second-stage boot program, which should be located in a place where the TFTP daemon can find it (remember, many TFTP daemons run in a chroot'ed environment). You can find the boot program in `/usr/mdec/boot' in the OpenBSD/MACHINE distribution. Unfortunately, it is necessary to install this file differently for sun4 and sun4c clients: the sun4 version needs to have its `a.out' header stripped off (otherwise the machine will crash), while the sun4c version must retain it (otherwise the PROM will complain). Here's an example to illustrate this whole mess: server# cd //usr/mdec if client is a sun4: server# set SKIP=1 server# set KARCH=SUN4 else server# set SKIP=0 server# set KARCH=SUN4C server# dd if=boot of=/tftpboot/boot.MACHINE.OpenBSD.$KARCH skip=$SKIP bs=32 server# cd /tftpboot server# ln -s boot.MACHINE.OpenBSD.$KARCH 8273900B.$KARCH After the boot program has been loaded into memory and given control by the PROM, it starts locating the machine's remote root directory through the BOOTPARAM protocol. First a BOOTPARAM WHOAMI request is broadcast on the local net. The answer to this request (if it comes in) contains the client's name. This name is used in the next step, a BOOTPARAM GETFILE request -- sent to the server that responded to the WHOAMI request -- requesting the name and address of the machine that will serve the client's root directory, as well as the path of the client's root on that server. Finally, this information (if it comes in) is used to issue a REMOTE MOUNT request to the client's root filesystem server, asking for an NFS file handle corresponding to the root filesystem. If successful, the boot program starts reading from the remote root filesystem in search of the kernel which is then read into memory. You will want export the miniroot{:--:}OSrev.fs filesystem to the client. You can dd this filesystem image to some spare partition, mount and export that partition, or use tar to copy the contents to a more convenient spot. Alternatively you can build a bootable partition from the distribution sets as follows: Unpack `base{:--:}OSrev.tgz' and `etc{:--:}OSrev.tgz' on the server in the root directory for your target machine. If you elect to use a separately NFS-mounted filesystem for `/usr' with your diskless setup, make sure the "./usr" base files in base{:--:}OSrev.tgz end up in the correct location. One way to do this is to temporarily use a loopback mount on the server, re-routing /usr to your server's exported OpenBSD "/usr" directory. Also put the kernel and the install/upgrade scripts into the root directory. A few configuration files need to be edited: /etc/hosts Add the IP addresses of both server and client. /etc/myname This files contains the client's hostname; use the same name as in /etc/hosts. /etc/fstab Enter the entries for the remotely mounted filesystems. For example: server:/export/root/client / nfs rw 0 0 server:/export/exec/sun4.OpenBSD /usr nfs rw 0 0 OpenBSDInstNFS