Installation procedure for NetBSD/sun2 10.0_RC4

NAME

INSTALL - Installation procedure for NetBSD/sun2.

CONTENTS


 About this Document
 What is NetBSD?
 Dedication
 Changes Between The NetBSD 9 and 10 Releases
 Features to be removed in a later release
 The NetBSD Foundation
 Sources of NetBSD
 NetBSD 10.0_RC4 Release Contents
    NetBSD/sun2 subdirectory structure
    Binary distribution sets
 NetBSD/sun2 System Requirements and Supported Devices
    Supported hardware
 Getting the NetBSD System on to Useful Media
    Creating boot/install tapes
    Boot/Install from NFS server
    Install/Upgrade from CD-ROM
    Install/Upgrade via FTP
 Preparing your System for NetBSD installation
 Installing the NetBSD System
    Installing from tape
    Installing from NFS
    Installing from SunOS
    Booting the Miniroot
    Miniroot install program
 Post installation steps
 Upgrading a previously-installed NetBSD System
 Compatibility Issues With Previous NetBSD Releases
 Using online NetBSD documentation
 Administrivia
 Thanks go to
 Legal Mumbo-Jumbo
 The End

DESCRIPTION

About this Document

This document describes the installation procedure for NetBSD 10.0_RC4 on the sun2 platform. It is available in four different formats titled INSTALL.ext, where .ext is one of .ps, .html, .more, or .txt:

.ps
PostScript.

.html
Standard Internet HTML.

.more
The enhanced text format used on UNIX-like systems by the more(1) and less(1) pager utility programs. This is the format in which the on-line man pages are generally presented.

.txt
Plain old ASCII.

You are reading the HTML version.

What is NetBSD?

The NetBSD Operating System is a fully functional open-source operating system derived from the University of California, Berkeley Networking Release 2 (Net/2), 4.4BSD-Lite, and 4.4BSD-Lite2 sources. NetBSD runs on many different different system architectures (ports) across a variety of distinct CPU families, and is being ported to more. The NetBSD 10.0_RC4 release contains complete binary releases for most of these system architectures, with preliminary support for the others included in source form. Please see the NetBSD website for information on them.

NetBSD is a completely integrated system. In addition to its highly portable, high performance kernel, NetBSD features a complete set of user utilities, compilers for several languages, the X Window System, firewall software and numerous other tools, all accompanied by full source code.

NetBSD is a creation of the members of the Internet community. Without the unique cooperation and coordination the net makes possible, NetBSD would not exist.

Dedication

NetBSD 10.0 is dedicated to the memory of Ryo SHIMIZU, who passed away in May 2023.

Ryo's technical contributions are too many to list here in full. He was a long term contributor and worked on a lot of low-level code over various architectures, from x68k to aarch64. He also worked on various out-of-tree NetBSD items, like the IIJ git repository conversion.

The project lost an excellent technical contributor and many of us a good friend.

Changes Between The NetBSD 9 and 10 Releases

The NetBSD 10.0_RC4 release provides many significant changes, including support for many new devices, hundreds of bug fixes, new and updated kernel subsystems, and numerous userland enhancements. The result of these improvements is a stable operating system fit for production use that rivals most commercially available systems.

One important new feature in this release is the support for extended attributes and access controll lists on FFS file systems.

For new installations the installer will default to disable this features, so the file system is compatible with older NetBSD releases (before 10), and allow other operating systems to mount this file systems at least in read-only mode.

If you want a new installed file system to support extended attributes, change the file system type from ``FFSv2'' to ``FFSv2ea'' in the partitioning menu. You can also convert file systems later, using the fsck_ffs(8) utility. More details are available in this guide.

If you are upgrading from a version of NetBSD-current please also check the Compatibility Issues With Previous NetBSD Releases.

It is impossible to completely summarize the massive development that went into the NetBSD 10.0_RC4 release. The complete list of changes can be found in the following files:
CHANGES
CHANGES-10.0
files in the top level directory of the NetBSD 10.0 release tree.

Features to be removed in a later release

The following features are to be removed from NetBSD in the future:

The NetBSD Foundation

The NetBSD Foundation is a tax exempt, not-for-profit 501(c)(3) corporation that devotes itself to the traditional goals and spirit of the NetBSD Project and owns the trademark of the word ``NetBSD''. It supports the design, development, and adoption of NetBSD worldwide. More information on the NetBSD Foundation, its composition, aims, and work can be found at:
       https://www.NetBSD.org/foundation/

Sources of NetBSD

Refer to mirrors

NetBSD 10.0_RC4 Release Contents

The root directory of the NetBSD 10.0_RC4 release is organized as follows:

.../NetBSD-10.0_RC4/

CHANGES
Changes between the 9.0 and 10.0 releases.

CHANGES-10.0
Changes between the initial 10.0 branch and final release of 10.0.

CHANGES.prev
Changes in previous NetBSD releases.

LAST_MINUTE
Last minute changes and notes about the release.

README.files
README describing the distribution's contents.

images/
Images (ISO 9660 or USB) for installing NetBSD. Depending on your system, these may be bootable.

source/
Source distribution sets; see below.

In addition to the files and directories listed above, there is one directory per architecture, for each of the architectures for which NetBSD 10.0_RC4 has a binary distribution.

The source distribution sets can be found in subdirectories of the source subdirectory of the distribution tree. They contain the complete sources to the system. The source distribution sets are as follows:

gnusrc
This set contains the ``gnu'' sources, including the source for the compiler, assembler, groff, and the other GNU utilities in the binary distribution sets.

sharesrc
This set contains the ``share'' sources, which include the sources for the man pages not associated with any particular program; the sources for the typesettable document set; the dictionaries; and more.

src
This set contains all of the base NetBSD 10.0_RC4 sources which are not in gnusrc, sharesrc, or syssrc.

syssrc
This set contains the sources to the NetBSD 10.0_RC4 kernel for all architectures as well as the config(1) utility.

xsrc
This set contains the sources to the X Window System.

All the above source sets are located in the source/sets subdirectory of the distribution tree.

The source sets are distributed as compressed tar files. Except for the pkgsrc set, which is traditionally unpacked into /usr/pkgsrc, all sets may be unpacked into /usr/src with the command:
       # cd / ; tar -zxpf set_name.tgz

In each of the source distribution set directories, there are files which contain the checksums of the files in the directory:

MD5
MD5 digests in the format produced by the command:
cksum -a MD5 file.

SHA512
SHA512 digests in the format produced by the command:
cksum -a SHA512 file.

The SHA512 digest is safer, but MD5 checksums are provided so that a wider range of operating systems can check the integrity of the release files.

NetBSD/sun2 subdirectory structure
The sun2-specific portion of the NetBSD 10.0_RC4 release is found in the sun2 subdirectory of the distribution: .../NetBSD-10.0_RC4/sun2/. It contains the following files and directories:

INSTALL.html
INSTALL.ps
INSTALL.txt
INSTALL.more
Installation notes in various file formats, including this file. The .more file contains underlined text using the more(1) conventions for indicating italic and bold display.
binary/
kernel/
netbsd-GENERIC.gz
A gzipped NetBSD kernel containing code for everything supported in this release.
sets/
sun2 binary distribution sets; see below.
installation/
miniroot/
sun2 miniroot file system image; see below.
misc/
Miscellaneous sun2 installation utilities; see installation section below.
netboot/
Two programs needed to boot sun2 kernels over the network.
tapeimage/
Tape boot program, and two shell scripts used to prepare tapes.
Binary distribution sets
The NetBSD sun2 binary distribution sets contain the binaries which comprise the NetBSD 10.0_RC4 release for sun2. The binary distribution sets can be found in the sun2/binary/sets subdirectory of the NetBSD 10.0_RC4 distribution tree, and are as follows:

base
The NetBSD 10.0_RC4 sun2 base binary distribution. You must install this distribution set. It contains the base NetBSD utilities that are necessary for the system to run and be minimally functional.

comp
Things needed for compiling programs. This set includes the system include files (/usr/include) and the various system libraries (except the shared libraries, which are included as part of the base set). This set also includes the manual pages for all of the utilities it contains, as well as the system call and library manual pages.

debug
This distribution set contains debug information for all base system utilities. It is useful when reporting issues with binaries or during development. This set is huge, if the target disk is small, do not install it.

etc
This distribution set contains the system configuration files that reside in /etc and in several other places. This set must be installed if you are installing the system from scratch, but should not be used if you are upgrading.

games
This set includes the games and their manual pages.

kern-GENERIC
This set contains a NetBSD/sun2 10.0_RC4 GENERIC kernel, named /netbsd. You must install this distribution set.

man
This set includes all of the manual pages for the binaries and other software contained in the base set. Note that it does not include any of the manual pages that are included in the other sets.

misc
This set includes the system dictionaries, the typesettable document set, and other files from /usr/share.

modules
This set includes kernel modules to add functionality to a running system.

rescue
This set includes the statically linked emergency recover binaries installed in /rescue.

text
This set includes NetBSD's text processing tools, including groff(1), all related programs, and their manual pages.

NetBSD maintains its own set of sources for the X Window System in order to assure tight integration and compatibility. NetBSD/sun2 currently does not ship with an X server or X clients.

The sun2 binary distribution sets are distributed as gzipped tar files named with the extension .tgz, e.g. base.tgz.

The instructions given for extracting the source sets work equally well for the binary sets, but it is worth noting that if you use that method, the filenames stored in the sets are relative and therefore the files are extracted below the current directory. Therefore, if you want to extract the binaries into your system, i.e. replace the system binaries with them, you have to run the tar -xzpf command from the root directory ( / ) of your system.

There is a collection of Sun2 kernels in the sun2/binary/kernel subdirectory of the NetBSD 10.0_RC4 distribution. The one named netbsd-RAMDISK.gz contain a root file system image and should only be used for the initial installation. The others are included for convenience. (Most people will want to use netbsd-GENERIC.gz or netbsd-FOURMEG.gz as appropriate.) Please note that these kernels are simply gzipped and are not tar archives.

Note:
Each directory in the sun2 binary distribution also has its own checksum files, just as the source distribution does.

NetBSD/sun2 System Requirements and Supported Devices

NetBSD/sun2 10.0_RC4 runs on Multibus Sun2 machines, including:

2/120 2/170 2/100U

The minimal configuration requires 4 MB of RAM and about 130 MB of disk space. To install the entire system requires much more disk space. To compile the system, more RAM is recommended. Good performance requires 7 MB of RAM. A good rule of thumb is to have a swap partition twice the size of the amount of RAM in your machine. You will probably want to compile your own kernel, as GENERIC is large and bulky to accommodate all people.

Note that the sun2 installation procedure uses a miniroot image which is placed into the swap area of the disk. The swap partition must be at least as large as the miniroot image (12 MB).

Supported hardware

If it's not on this list, there is no support for it in this release.

Getting the NetBSD System on to Useful Media

Installation is supported from several media types, including:

Note:
Installing on a `bare' machine requires some bootable device; either a tape drive or Sun-compatible NFS server.

The procedure for transferring the distribution sets onto installation media depends on the type of media. Instructions for each type of media are given below.

In order to create installation media, you will need all the files in the directory

       .../NetBSD-10.0_RC4/sun2/

Creating boot/install tapes
Installing from tape is the simplest method of all. This method uses two tapes; one called the boot tape, and another called the install tape.

The boot tape is created as follows:


       # cd .../NetBSD-10.0_RC4/sun2/installation/tapeimage
       # sh MakeBootTape /dev/nrst0

The install tape is created as follows:


       # cd .../NetBSD-10.0_RC4/sun2/installation/tapeimage
       # sh MakeInstallTape /dev/nrst0

If the tapes do not work as expected, you may need to explicitly set the EOF mark at the end of each tape segment. It may also be necessary to use the conv=osync argument to dd(1). Note that this argument is incompatible with the bs= argument. Consult the tape-related manual pages on the system where the tapes are created for more details.

Boot/Install from NFS server
If your machine has a disk and network connection, but no tape drive, it may be convenient for you to install NetBSD over the network. This involves temporarily booting your machine over NFS, just long enough so you can initialize its disk. This method requires that you have access to an NFS server on your network so you can configure it to support diskless boot for your machine. Configuring the NFS server is normally a task for a system administrator, and is not trivial.

If you are using a NetBSD 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, consult the documentation that came with it (i.e. add_client(8) on SunOS).

When instructed to boot over the network, your sun2 expects to be able to download first and second stage bootstrap programs via ND, the Network Disk protocol. The ndbootd(8) program will attempt to serve a second-stage bootstrap file using a name derived from the machine's recently acquired IP address and an extension which corresponds to the machine architecture. (It may be handy to have a hexadecimal calculator for this next step.) The filename prefix is created by converting the machine's assigned IP address into hexadecimal, most-significant octet first, using uppercase characters for the non-decimal (A-F) digits. The filename suffix used by all sun2 machines is SUN2.

For example, a sun2 which has been assigned IP address 130.115.144.11 will be served a second-stage bootstrap file named 8273900B.SUN2. Normally, this file is a symbolic link to the NetBSD/sun2 netboot program, which should be located in a place where the ndbootd(8) daemon can find it. The netboot program may be found in the installation/netboot directory of this distribution.

The netboot program will query a bootparamd server to find the NFS server address and path name for its root, and then load a kernel from that location. The server should have a copy of the netbsd-RAMDISK kernel in the root area for your client, hard-linked under the names netbsd and vmunix (no other files are needed in the client root) and /etc/bootparams on the server should have an entry for your client and its root directory. The client will need access to the miniroot image, which can be provided using NFS or remote shell.

If you will be installing NetBSD on several clients, it may be useful to know that you can use a single NFS root for all the clients as long as they only use the netbsd-RAMDISK kernel. There will be no conflict between clients because the RAM-disk kernel will not use the NFS root. No swap file is needed; the RAM-disk kernel does not use that either.

Install/Upgrade from CD-ROM
This method requires that you boot from another device (i.e. tape or network, as described above). You may need to make a boot tape on another machine using the files provided on the CD-ROM. Once you have booted netbsd-rd (the RAM-disk kernel) and loaded the miniroot, you can load any of the distribution sets directly from the CD-ROM. The install program in the miniroot automates the work required to mount the CD-ROM and extract the files.
Install/Upgrade via FTP
This method requires that you boot from another device (i.e. tape or network, as described above). You may need to make a boot tape on another machine using the files in installation/tapeimage and binary/kernel (which you get via FTP). Once you have booted netbsd-RAMDISK (the RAM-disk kernel) and loaded the miniroot, you can load any of the distribution sets over the net using FTP. The install program in the miniroot automates the work required to configure the network interface and transfer the files.

The preparations for this installation/upgrade method are easy; all you make sure that there's some FTP site from which you can retrieve the NetBSD distribution when you're about to install or upgrade. You need to know the numeric IP address of that site, and, if it's not on a network directly connected to the machine on which you're installing or upgrading NetBSD, you need to know the numeric IP address of the router closest to the NetBSD machine. Finally, you need to know the numeric IP address of the NetBSD machine itself.

Preparing your System for NetBSD installation

Sun2 machines usually need little or no preparation before installing NetBSD, other than the usual, well advised precaution of backing up all data on any attached storage devices.

You will need to know the SCSI target ID of the drive on which you will install NetBSD.

Note:
SunOS on the sun2 uses confusing names for the SCSI devices: target 1 is sd2, target 2 is sd4, etc.

Installing the NetBSD System

Installing NetBSD is a relatively complex process, but if you have this document in hand it should not be too difficult.

There are several ways to install NetBSD onto your disk. If your machine has a tape drive the easiest way is Installing from tape (details below). If your machine is on a network with a suitable NFS server, then Installing from NFS is the next best method. Otherwise, if you have another Sun machine running SunOS you can initialize the disk on that machine and then move the disk. (Installing from SunOS is not recommended.)

Installing from tape
Create the NetBSD/sun2 10.0_RC4 boot tape as described in the section entitled Creating boot/install tapes and boot the tape. At the PROM monitor prompt, use one of the commands:


       >b st()
       >b st(0,8,0)

The first example will use the tape on SCSI target 4, where the second will use SCSI target 5. The > is the monitor prompt.

After the tape loads, you should see many lines of configuration messages, and then the following `welcome' screen:

        Welcome to the NetBSD/sun2 RAMDISK root!
        

This environment is designed to do only three things: 1: Partition your disk (use the command: edlabel /dev/rsd0c) 2: Copy a miniroot image into the swap partition (/dev/rsd0b) 3: Reboot (using the swap partition, i.e. /dev/sd?b).

Note that the sun2 firmware cannot boot from a partition located more than 1 GB from the beginning of the disk, so the swap partition should be completely below the 1 GB boundary.

Copying the miniroot can be done several ways, allowing the source of the miniroot image to be on any of these: boot tape, NFS server, TFTP server, rsh server

The easiest is loading from tape, which is done as follows: mt -f /dev/nrst0 rewind mt -f /dev/nrst0 fsf 2 dd if=/dev/nrst0 of=/dev/rsd0b bs=32k conv=sync (For help with other methods, please see the install notes.)

To reboot using the swap partition, first use "halt", then at the PROM monitor prompt use a command like: b sd(,,1) -s

To view this message again, type: cat /.welcome

Copy the miniroot as described in the welcome message, and reboot from that just installed miniroot. See the section entitled Booting the miniroot for details.

Installing from NFS
Before you can install from NFS, you must have already configured your NFS server to support your machine as a diskless client. Instructions for configuring the server are found in the section entitled Getting the NetBSD System onto Useful Media above.

First, at the Sun PROM monitor prompt, enter a boot command using the network interface as the boot device. If your machine has Intel Ethernet, this is ie, and if it has 3Com Ethernet, this is ec. Examples:


       >b ie() -s
       >b ec() -s

After the boot program loads the RAMDISK kernel, you should see the welcome screen as shown in the Installing from tape section above. You must configure the network interface before you can use any network resources. For example the command:


       ssh> ifconfig ie0 inet 192.233.20.198 up

will bring up the network interface with that address. The next step is to copy the miniroot from your server. This can be done using either NFS or remote shell. (In the examples that follow, the server has IP address 192.233.20.195.) You may then need to add a default route if the server is on a different subnet:


       ssh> route add default 192.233.20.255 1

You can look at the route table using:


       ssh> route show

Now mount the NFS file system containing the miniroot image:


       ssh> mount -o rdonly,-r=1024 192.233.20.195:/server/path /mnt

The procedure is simpler and much faster if you have space for an expanded (not compressed) copy of the miniroot image. In that case:


       ssh> dd if=/mnt/miniroot.fs of=/dev/rsd0b bs=8k

Otherwise, you will need to use zcat to expand the miniroot image while copying. This is tricky because the ssh program (small shell) does not handle sh(1) pipeline syntax. Instead, you first run the reader in the background with its input set to /dev/pipe and then run the other program in the foreground with its output to /dev/pipe. The result looks like this:


       ssh> run -bg dd if=/dev/pipe of=/dev/rsd0b obs=8k
       ssh> run -o /dev/pipe zcat /mnt/install/miniroot.fs.gz

To load the miniroot using rsh to the server, you would use a pair of commands similar to the above. Here is another example:


       ssh> run -b dd if=/dev/pipe of=/dev/rsd0b obs=8k
       ssh> run -o /dev/pipe rsh 192.233.20.195 zcat miniroot.fs.gz

Note that decompression on a sun2 is extremely slow, be prepared to wait. For this reason, expanding the miniroot image on the NFS server is highly recommended.

Once the miniroot has been copied using one of the above methods, you reboot from that just installed miniroot. See the section entitled Booting the miniroot for details.

Installing from SunOS
To install NetBSD/sun2 onto a machine already running SunOS, you will need the miniroot image (miniroot.fs.gz) and some means to decompress it.

First, boot SunOS and place the miniroot file onto the hard drive. If you do not have gzip for SunOS, you will need to decompress the image elsewhere before you can use it.

Next, bring SunOS down to single user mode to insure that nothing will be using the swap space on your drive. To be extra safe, reboot the machine into single-user mode rather than using the shutdown command.

Now copy the miniroot image onto your swap device (here /dev/rsd0b) with the command


       gzip -dc miniroot.fs.gz | dd of=/dev/rsd0b obs=32k

or if you have already decompressed the miniroot


       dd if=miniroot.fs of=/dev/rsd0b obs=32k

Finally, reboot the machine and instruct the PROM to boot from the swap device as described in the next section.

Booting the Miniroot
If the machine is not already at the PROM monitor, run the halt command.

If the miniroot was installed on partition `b' of the disk with SCSI target ID=0 then the PROM boot command would be:


       >b sd(0,0,1) -s

With SCSI target ID=2, the PROM is:


       >b sd(0,10,1) -s

The numbers in parentheses above are:

  1. controller (usually zero)
  2. unit number (SCSI-ID * 8, in hexadecimal)
  3. partition number
Miniroot install program
The miniroot's install program is very simple to use. It will guide you through the entire process, and is well automated. Additional improvements are planned for future releases.

The miniroot's install program will:

First-time installation on a system through a method other than the installation program is possible, but strongly discouraged.

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. The most important steps are described below.

  1. Before all else, read postinstall(8).

  2. Configuring /etc/rc.conf

    If you or the installation software haven't done any configuration of /etc/rc.conf (sysinst normally 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-only. 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 vt220 (or whatever is appropriate for your terminal type) 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 file system 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).

    When you have finished editing /etc/rc.conf, type exit at the prompt to leave the single-user shell and continue with the multi-user boot.

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


           ifconfig_le0="inet 192.0.2.123 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.

    Instead of manually configuring networking, DHCP can be used by setting dhcpcd=YES in /etc/rc.conf.

  3. Logging in

    After reboot, you can log in as root at the login prompt. If you didn't set a password in sysinst, there is no initial password. You should create an account for yourself (see below) and protect it and the ``root'' account with good passwords. By default, root login from the network is disabled (even via ssh(1)). One way to become root over the network is to log in as a different user that belongs to group ``wheel'' (see group(5)) and use su(1) to become root.

  4. Adding accounts

    Use the useradd(8) command to add accounts to your system. Do not edit /etc/passwd directly! See vipw(8) and pwd_mkdb(8) if you want to edit the password database.

  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, pkgsrc. pkgsrc automatically handles any changes necessary to make the software run on NetBSD. This includes the retrieval and installation of any other packages the software may depend upon.

  6. Misc

Upgrading a previously-installed NetBSD System

It is possible to easily upgrade your existing NetBSD/sun2 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:

Using the miniroot's upgrade program is the preferred method of upgrading your system.

However, it is possible to upgrade your system manually. To do this, follow the following procedure:

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.

Compatibility Issues With Previous NetBSD Releases

Users upgrading from previous versions of NetBSD may wish to bear the following problems and compatibility issues in mind when upgrading to NetBSD 10.0_RC4.

Note that sysinst will automatically invoke

postinstall fix
and thus all issues that are fixed by postinstall by default will be handled.

In NetBSD9 and earlier, filesystems listed in /etc/fstab would be mounted before non-legacy zfs filesystems. Starting from NetBSD10 this order has been reversed.

If you have ever run a version of NetBSD-current between April 18, 2020 and September 23, 2022 (the version numbers used in the affected time range are between 9.99.56 and 9.99.106) your FFS file systems might have broken extended attributes stored.

You should follow this guide before booting the updated system multi-user for the first time.

Note that you do not need to do anything special if you never did run any affected kernel, especially if you have never run NetBSD-current.

The display drivers used for modern GPUs and the whole subsystem supporting it (DRM/KMS) have been updated to a newer version. Unfortunately not all issues with this have been resolved before the NetBSD10.0 release. You can find a list of issues in the Open issues with new DRM/KMS section of the release engineering wiki page.

A number of things have been removed from the NetBSD 10.0_RC4 release. See the ``Components removed from NetBSD'' section near the beginning of this document for a list.

Using online NetBSD documentation

Documentation is available if you installed the manual distribution set. Traditionally, the ``man pages'' (documentation) are denoted by `name(section)'. Some examples of this are

The section numbers group the topics into several categories, but three are of primary interest: user commands are in section 1, file formats are in section 5, and administrative information is in section 8.

The man command is used to view the documentation on a topic, and is started by entering man [section] topic. The brackets [] around the section should not be entered, but rather indicate that the section is optional. If you don't ask for a particular section, the topic with the lowest numbered section name will be displayed. For instance, after logging in, enter


       # man passwd

to read the documentation for passwd(1). To view the documentation for passwd(5), enter


       # man 5 passwd

instead.

If you are unsure of what man page you are looking for, enter


       # apropos subject-word

where subject-word is your topic of interest; a list of possibly related man pages will be displayed.

Administrivia

If you've got something to say, do so! We'd like your input. There are various mailing lists available via the mailing list server at majordomo@NetBSD.org. See
       https://www.NetBSD.org/mailinglists/
for details.

There are various mailing lists set up to deal with comments and questions about this release. Please send comments to: netbsd-comments@NetBSD.org.

To report bugs, use the send-pr(1) command shipped with NetBSD, and fill in as much information about the problem as you can. Good bug reports include lots of details.

Bugs also can be submitted and queried with the web interface at
       https://www.NetBSD.org/support/send-pr.html

There are also port-specific mailing lists, to discuss aspects of each port of NetBSD. Use majordomo to find their addresses, or visit
       https://www.NetBSD.org/mailinglists/

If you're interested in doing a serious amount of work on a specific port, you probably should contact the `owner' of that port (listed below).

If you'd like to help with NetBSD, and have an idea as to how you could be useful, send us mail or subscribe to: netbsd-users@NetBSD.org.

As a favor, please avoid mailing huge documents or files to these mailing lists. Instead, put the material you would have sent up for FTP or WWW somewhere, then mail the appropriate list about it. If you'd rather not do that, mail the list saying you'll send the data to those who want it.

Thanks go to

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NetBSD is a registered trademark of The NetBSD Foundation, Inc.

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This software was developed by Holger Veit and Brian Moore for use with "386BSD" and similar operating systems. "Similar operating systems" includes mainly non-profit oriented systems for research and education, including but not restricted to "NetBSD", "FreeBSD", "Mach" (by CMU).
The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation.

In the following statement, the phrase ``this text'' refers to portions of the system documentation.

Portions of this text are reprinted and reproduced in electronic form in NetBSD, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document.

The original Standard can be obtained online at http://www.opengroup.org/unix/online.html.

This notice shall appear on any product containing this material.

In the following statement, "This software" refers to the parallel port driver:

This software is a component of "386BSD" developed by William F. Jolitz, TeleMuse.

Some files have the following copyright:

Mach Operating System
Copyright (c) 1991,1990,1989 Carnegie Mellon University
All Rights Reserved.

Permission to use, copy, modify and distribute this software and its documentation is hereby granted, provided that both the copyright notice and this permission notice appear in all copies of the software, derivative works or modified versions, and any portions thereof, and that both notices appear in supporting documentation.

CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.

Carnegie Mellon requests users of this software to return to
Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
School of Computer Science
Carnegie Mellon University
Pittsburgh PA 15213-3890

any improvements or extensions that they make and grant Carnegie the rights to redistribute these changes.

Some files have the following copyright:

Copyright (c) 1994, 1995 Carnegie-Mellon University.
All rights reserved.

Author: Chris G. Demetriou

Permission to use, copy, modify and distribute this software and its documentation is hereby granted, provided that both the copyright notice and this permission notice appear in all copies of the software, derivative works or modified versions, and any portions thereof, and that both notices appear in supporting documentation.
CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.

Carnegie Mellon requests users of this software to return to
Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
School of Computer Science
Carnegie Mellon University
Pittsburgh PA 15213-3890

any improvements or extensions that they make and grant Carnegie the rights to redistribute these changes.

Some files have the following copyright:

Copyright 1996 The Board of Trustees of The Leland Stanford Junior University. All Rights Reserved.

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies. Stanford University makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

The End