Installazione di NetBSD su una Sun SparcStation 1 via rete
 
I dati della macchina da installare sono: 
Mac Address 08:00:20:09:56:17
IP Address  192.168.0.161
IP Address(hex compattato) C0A800A1
Architettura Sun4C
 
Installing NetBSD by using a netboot setup
First, you must setup a netboot server to provide the services and files your client needs. If you are using a NetBSD system as the netboot server, have a look at the diskless(8) manual page for a more detailed guide on how to proceed with this. If the server runs another operating system, you should consult the NetBSD Diskless HOW-TO, which will walk you through the steps necessary to configure a netboot server on a variety of platforms. http://www.netbsd.org/Documentation/network/netboot/

This section will briefly describe what happens during a Sparc netboot, and the next section will give a brief set of directions on how to set up your server. Your Sparc initially broadcasts a RARP request, and expects a server to reply with your client's IP address. Next, it downloads a second stage bootstrap program via TFTP from the server that responded to the RARP request. 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 an TFTP request for 8273900B.SUN4C. This file is a symbolic link to the 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).

The boot program to use is installation/netboot/boot.net Alternatively, you can find the bootstrap program in /usr/mdec/boot.net in the NetBSD/sparc distribution.

 

Note:
The only difference between /usr/mdec/boot.net and /usr/mdec/boot is in the a.out header, which has been magically transformed in a way that makes it usable on all versions of Sparc PROMs.

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 should contain the client's name. This name is used in 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 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. Once the NFS mount is complete, the boot program starts reading from the remote root filesystem in search of the kernel which is then read into memory.

 

Configuring your netboot server
Follow this section to configure a NetBSD machine as your netboot server. We will use `CC:CC:CC:CC:CC:CC' as the MAC address (ethernet hardware address) of your netboot client machine that you wish to install NetBSD on. We use `192.168.1.10' as the IP address of your client, and `client.test.net' as the name. The server name is `server.test.net', and the path on the server to the NFS exported directory is /export/client/root although you may choose to use a different path. Create an /etc/ethers file with the following line:


       CC:CC:CC:CC:CC:CC client

Add your client to the server's /etc/hosts file:


       192.168.1.10 client

If rarpd is currently running, restart it (kill -HUP), otherwise start rarpd:


       # /usr/sbin/rarpd -a

Next, create /etc/bootparams with the following line:


       client root=server:/export/client/root

If rpc.bootparamd is currently running, restart it (kill -HUP), otherwise start rpc.bootparamd:


       # /usr/sbin/rpc.bootparamd

Now, make sure the bootloader in /tftpboot is linked to, or a copy of, boot.net and is named appropriately for your client (in this case, it would be C0A8010A.SUN4C).


       # cp boot.net /tftpboot
       # ln -s /tftpboot/boot.net /tftpboot/C0A8010A.SUN4C

Now, you should edit /etc/inetd.conf and make sure that the line starting with tftp is uncommented. You will need to kill -HUP the inetd process to enable tftp if this line was previously commented out. The next step is to set up NFS exports. Create the directory you are exporting for the netboot client:


       # mkdir -p /export/client/root

Put the following line in /etc/exports to enable NFS sharing:


       /export/client/root -maproot=root client.test.net

If your server is currently running NFS services, you only need to kill -HUP the mountd process. Otherwise, you need to run:


       # /usr/sbin/mountd
       # /usr/sbin/nfsd -tun 4

Now, you need to place the files your netboot client will need. As noted above in the section Preparing your System for NetBSD Installation you have several options when choosing a location to store the distribution filesets. However, the easiest way is to put the distribution files into the exported directory for your client on the server.


       # mv *.tgz /export/client/root

Your client will need a kernel to boot (use binary/kernel/netbsd.GENERIC.gz).


       # gunzip netbsd.GENERIC.gz
       # mv netbsd.GENERIC /export/client/root/netbsd

Your client will need installation tools (use installation/netboot/rootfs.tgz).


       # gunzip < rootfs.tgz | (cd /export/client/root && tar -xpf -)

Now, netboot your Sparc 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:

sunmon
> b le()netbsd
OpenBoot PROM 1
ok b le()netbsd
OpenBoot PROM 2
ok b net netbsd

After the initial probe messages you'll be asked to start the install or upgrade procedure. Proceed to the section Running the installation scripts. below.

Running the installation scripts
The first thing that the installation scripts will inquire about is the type of console you're using on your machine. If you're using a Sun frame buffer display, choose the terminal type sun (this is presented as the default).

 

Note:
if your frame buffer device is a cgsix Sbus board, you should change the terminal type to sun-cgsix to avoid triggering a bug in the board's firmware code that can garble your screen.

If you're using a terminal device connected to a serial port, choose a terminal type appropriate for that device, e.g. vt100 or vt200.

Next, you will be presented with a choice of two installation methods: a new full-screen sysinst program, or the traditional script-based miniroot program. The sysinst program is easier to use, but the miniroot program is more flexible. Both of these installation methods will follow the same set of procedures and will fully install NetBSD on your Sparc.

You will frequently be asked for confirmation before the system proceeds with each phase of the installation process.

Occasionally, you will have to provide a piece of information such as the name of the disk you want to install on, partitioning information, or IP addresses and domain names you want to assign. If your system has more than one disk, you may want to look at the output of the dmesg(8) command to see how your disks have been identified by the kernel.

 

Note:
If you repartition a hard drive, be certain that every partition starts on a cylinder boundary for compatability with the Sparc ROM.

The installation script goes through the following phases:

Now try a reboot. Initially we'd suggest you boot sd()netbsd -bs, then try multiuser after that. If you boot single-user the NetBSD incantation to make the root filesystem writable is


       # mount -u /dev/sd0a /

Your PROM might have been setup to instruct the boot program to load a file called vmunix. On OpenBoot PROM systems you can change it to load netbsd instead using the following commands:

 

OpenBoot PROM 1
ok setenv boot-from sd(0,0,0)netbsd
OpenBoot PROM 2
ok setenv boot-file netbsd
ok setenv boot-device disk:a

Congratulations, you have successfully installed NetBSD1.5.2.

Post installation steps

Once you've got the operating system running, there are a few things you need to do in order to bring the system into a properly configured state, with the most important ones described below.

     

  1. Configuring /etc/rc.conf

    If you or the installation software haven't done any configuration of /etc/rc.conf (sysinst usually will), the system will drop you into single user mode on first reboot with the message

           /etc/rc.conf is not configured. Multiuser boot aborted.

    and with the root file system (/) mounted read-write. When the system asks you to choose a shell, simply press RETURN to get to a /bin/sh prompt. If you are asked for a terminal type, respond with sun for a local console, or whatever is appropriate for your serial console (some systems display garbage with a sun terminal type, you may need to use sun-ss5) and press RETURN. You may need to type one of the following commands to get your delete key to work properly, depending on your keyboard:
           # stty erase '^h'
           # stty erase '^?'
    At this point, you need to configure at least one file in the /etc directory. You will need to mount your root filesystem read/write with:
           # /sbin/mount -u -w /
    Change to the /etc directory and take a look at the /etc/rc.conf file. Modify it to your tastes, making sure that you set rc_configured=YES so that your changes will be enabled and a multi-user boot can proceed. Default values for the various programs can be found in /etc/defaults/rc.conf, where some in-line documentation may be found. More complete documentation can be found in rc.conf(5).

    If your /usr directory is on a separate partition and you do not know how to use ed, you will have to mount your /usr partition to gain access to ex or vi. Do the following:


           # mount /usr

           # export TERM=sun

    If you have /var on a separate partition, you need to repeat that step for it. After that, you can edit /etc/rc.conf with vi(1). When you have finished, type exit at the prompt to leave the single-user shell and continue with the multi-user boot.

    Other values that need to be set in /etc/rc.conf for a networked environment are hostname and possibly defaultroute, furthermore add an ifconfig_int for your <int> network interface, along the lines of


           ifconfig_le0="inet 123.45.67.89 netmask 255.255.255.0"

    or, if you have myname.my.dom in /etc/hosts:


           ifconfig_le0="inet myname.my.dom netmask 255.255.255.0"

    To enable proper hostname resolution, you will also want to add an /etc/resolv.conf file or (if you are feeling a little more adventurous) run named(8). See resolv.conf(5) or named(8) for more information.

    Other files in /etc that may require modification or setting up include /etc/mailer.conf, /etc/nsswitch.conf, and /etc/wscons.conf.

     

  2. Logging in

    After reboot, you can log in as root at the login prompt. Unless you've set a password in sysinst, there is no initial password. If you're using the machine in a networked environment, you should create an account for yourself (see below) and protect it and the ``root'' account with good passwords. Unless you have connected an unusual terminal device as the console you can just press RETURN when it prompts for Terminal type? [...].

     

  3. Adding accounts

    Use the useradd(8) command to add accounts to your system, do not edit /etc/passwd directly. See useradd(8) for more information on how to add a new user to the system.

     

  4. The X Window System

    If you have installed the X Window System, look at the files in /usr/X11R6/lib/X11/doc for information.

    Don't forget to add /usr/X11R6/bin to your path in your shell's dot file so that you have access to the X binaries.

     

  5. Installing third party packages

    If you wish to install any of the software freely available for UNIX-like systems you are strongly advised to first check the NetBSD package system. This automatically handles any changes necessary to make the software run on NetBSD, retrieval and installation of any other packages on which the software may depend, and simplifies installation (and deinstallation), both from source and precompiled binaries.

     

     

  6. Misc