988 lines
38 KiB
Plaintext
988 lines
38 KiB
Plaintext
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FreeBSD
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Frequently Asked Questions
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For Versions 1.1 and below
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Please mail all suggestions and additions to <FreeBSD-FAQ@FreeBSD.ORG>
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Revision: $Id: FreeBSD-1.1.FAQ,v 1.4 1994/10/10 10:46:14 gclarkii Exp $
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All entries are assumed to be relevant to both FreeBSD 1.1 and FreeBSD 1.1.5,
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unless otherwise noted.
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Table of Contents
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-----------------
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0 Preface
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1 Installation
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2 Hardware Compatibility
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3 Commercial applications
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4 User Applications
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5 Miscellaneous Questions
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6 Kernel Configuration
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7 System Administration
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8 Networking
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9 Serial Communications
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0 Preface
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---------
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Welcome to the FreeBSD 1.1 FAQ! This document tries to answer some of
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the most frequently asked questions about FreeBSD 1.1 (or later,
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unless specifically indicated). If there's something you're having
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trouble with and you just don't see it here, then please send mail to:
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<questions@FreeBSD.ORG>
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Some of the instructions here will also refer to auxiliary utilities
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in the /usr/src/share/FAQ directory. CDROM purchasers and net folks
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who've grabbed the FreeBSD current `srcdist' will have these files. If
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you don't have the source distribution, then you can either grab the
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whole thing from:
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ftp.FreeBSD.ORG:pub/FreeBSD/FreeBSD-current/src
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0.1: What is FreeBSD?
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FreeBSD is a UN*X type operating system based on William Jolitz's port
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of U.C. Berkeley's Networking Release 2 to the i386, 386BSD. It is no
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longer correct to say that FreeBSD is only 386BSD with the patchkit
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applied! There have been many additions and bug fixes made throughout
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the entire system, some of the highlights of which are:
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More robust and extensive PC device support
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System V-style IPC, messaging and semaphores
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Shared Libraries
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Much improved virtual memory code
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Better console driver support
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Network booting (diskless) support
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/proc filesystem
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Yellow Pages support
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`LDT' support for WINE (primitive but developing Windows emulation)
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Too many additional utilities and applications to mention
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0.2: My friends told me that FreeBSD was illegal and I shouldn't use it.
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Is this really true?
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FreeBSD versions up to and including 1.1 have included code from
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Berkeley's Net/2 distribution. UNIX Systems Laboratories (now Novell)
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sued Berkeley claiming that Net/2 included some code that belonged to
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USL. In February of 1994, USL and Berkeley announced a settlement in
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which neither side admitted to doing anything wrong, but UCB agreed to
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stop distributing the disputed software.
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Since Berkeley will no longer defend this code, we have been requested
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to stop distributing it, and will be integrating all the improvements
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we have made in the VM system and i386-specific code into Berkeley's
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4.4-Lite distribution; the result will form the basis of FreeBSD 2.0.
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We expect the integration to take place over a period of three to six
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months, during which time we will have to stop work on 1.1 and
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concentrate all our efforts on the merge, and we expect to make more
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information available on the status of the merge effort as the situation
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progresses.
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However, to answer the question, "No. FreeBSD is not illegal." We
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have been allowed by USL to distribute 1.1 as the last Net/2 derived
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version, after which we have committed to move to 4.4 as previously
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stated.
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We expect to make more information available on the status of the
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merge effort as the situation progresses.
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0.3: What are the FreeBSD mailing lists, and how can I get on them?
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The following mailing lists are provided for FreeBSD users and
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developers. For more information, send to
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<majordomo@FreeBSD.ORG> and include a single line saying
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``help'' in the body of your message.
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announce: For announcements about or on FreeBSD.
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hackers: Useful for persons wishing to work on the internals.
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questions: General questions on FreeBSD.
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bugs: Where bugs should be sent.
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commit: This list carries the commit messages for freefall. Useful
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for tracking ongoing work.
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SCSI: Mailing list for SCSI developers.
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current: This list is for persons wishing to run FreeBSD-current
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and carries announcements and discussions on current.
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ports: Discussion of "/usr/ports"
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hardware: Types of hardware FreeBSD runs on
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security: Security issues
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platforms: Porting to non-Intel platforms
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Please see also the FreeBSD mailing list FAQ in:
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/usr/src/share/FAQ/FreeBSD.mailing-list.FAQ
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0.4: What are the various FreeBSD news groups?
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While there are no groups currently dedicated to FreeBSD, you may find
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the following groups useful.
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comp.os.386bsd.announce: For announcements
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comp.os.386bsd.apps: For applications
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comp.os.386bsd.questions: For questions
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comp.os.386bsd.development: For working on the internals
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comp.os.386bsd.bugs: About bugs
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comp.os.386bsd.misc: For items that don't fit anywhere else
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NOTE: These groups cover all the *BSDs (FreeBSD, NetBSD, 386BSD).
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1 Installation
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--------------
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1.1: I just installed my system and rebooted. Now I can't find the
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extract or configure programs, where did they go?
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These two commands are just shell functions defined in /.profile. To
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get these back, boot FreeBSD with a `-s' at the boot prompt.
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1.2: I want to install FreeBSD onto a SCSI disk that has more than
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1024 cylinders. How do I do it?
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This depends. If you don't have DOS (or another operating system) on
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the system, you can just keep the drive in native mode and simply make
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sure that your root partition is below 1024 so the BIOS can boot the
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kernel from it. It you also have DOS/some other OS on the drive then
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your best bet is to find out what parameters that it thinks you have
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before installing FreeBSD. When FreeBSD's installation procedure
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prompts you for these values, you should then enter them rather than
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simply going with the defaults.
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There is a freely available utility distributed with FreeBSD called
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`pfdisk' (located in the tools/ subdirectory) which can be used for
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this purpose.
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1.3: When I boot FreeBSD it says ``Missing Operating System''.
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See question 1.2. This is classically a case of FreeBSD and DOS or
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some other OS conflicting over their ideas of disk geometry. You will
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have to reinstall FreeBSD, but obeying the instructions given above
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will almost always get you going.
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1.4: I have an IDE drive with lots of bad blocks on it and FreeBSD doesn't
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seem to install properly.
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FreeBSD's bad block (bad144) handling is still not 100% (to put it
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charitably) and it must unfortunately be said that if you've got an
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IDE or ESDI drive with lots of bad blocks, then FreeBSD is probably
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not for you! That said, it does work on thousands of IDE based
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systems, so you'd do well to try it first before simply giving up.
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IDE drives are *supposed* to come with built-in bad-block remapping;
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if you have documentation for your drive, you may want to see if this
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feature has been disabled on your drive. However, ESDI, RLL, and
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ST-506 drives normally do not do this.
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<1.1.5>
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FreeBSD-current has better bad block handling due to improvments made
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to the wd driver.
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1.5: I have 32MB of memory, should I expect any special problems?
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If you have an IDE controller, no. Likewise, if you have a full EISA
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system with EISA disk controller or a working local bus controller
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(read further) you'll have no problems. If you have an ISA system, or
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an EISA system with an ISA disk controller then you will most
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certainly have problems with the upper 16MB of memory due to the ISA
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24 bit DMA limitation (which ISA cards in EISA systems will also
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exhibit). If you have a local bus disk controller, then you should be
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OK, UNLESS it's a Buslogic Bt445S with a revision less than `D' (BIOS
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3.36 or earlier).
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<1.1.5>
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1.1.5 has bounce-buffer support that make all of the above scenarios work
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with a full 32MB of memory or more. You are therefore advised to simply pull
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16MB of memory out, install, and then see about upgrading to FreeBSD 1.1.5
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so that you can put it back.
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1.6: Do I need to install the complete sources?
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In general, no. However, we would strongly recommend that you
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install, at a minimum, the `base' source kit, which includes several
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of the files mentioned here, and the `sys' (kernel) source kit, which
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includes sources for the kernel. There is nothing in the system which
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requires the presence of the sources to operate, however, except for
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the kernel-configuration program config(8). With the exception of the
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kernel sources, our build structure is set up so that you can
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read-only mount the sources from elsewhere via NFS and still be able
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to make new binaries. (Because of the kernel-source restriction, we
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recommend that you not mount this on /usr/src directly, but rather in
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some other location with appropriate symbolic links to duplicate the
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top-level structure of the source tree.)
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Having the sources on-line and knowing how to build a system with them
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will make it much easier for you to upgrade to future releases of
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FreeBSD.
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1.7: DES encryption software can not be exported from the United
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States. If I live outside the US, how can I encrypt passwords?
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Since the DES encryption algorithm, which is used by passwd(1) and
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friends to encrypt passwords cannot legally be exported from the US,
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non-US users should not download this software from US FTP sites.
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There is however a replacement libcrypt available, based on sources
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written in Australia by David Burren. This code is now available on
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some non-US FreeBSD mirror sites. Sources for the unencumbered
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libcrypt, and binaries of the programs which use it, can be obtained
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from the following FTP sites:
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South Africa: braae.ru.ac.za:/pub/FreeBSD/securedist/
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owl.und.ac.za (currently uncertain)
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Iceland: ftp.veda.is:/pub/crypt/FreeBSD/
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The non-US securedist can be used as a direct replacement for the
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encumbered US securedist. This securedist package is installed the
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same way as the US package (see installation notes for details). If
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you are going to install DES encryption, you should do so as soon as
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possible, before installing other software.
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Non-US users should please not download any encryption software from
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the USA. This can get the maintainers of the sites from which the
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software is downloaded into severe legal difficulties.
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A non-US distribution of Kerberos is also being developed, and current
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versions can generally be obtained by anonymous FTP from
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braae.ru.ac.za.
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There is also a mailing list for the discussion of non-US encryption
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software. For more information, send an email message with a single
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line saying ``help'' in the body of your message to
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<majordomo@braae.ru.ac.za>.
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1.8 HELP! My keyboard locked up during the install!
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Some keyboard controllers are not a friend to FreeBSD. Among these are
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those on certain models of Gateway, IBM and AST machines. The most frequent
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symptom encountered in such cases is that the keyboard refuses to respond
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to input when at the `kcopy>' prompt in the second phase of bootstrapping
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FreeBSD. Fortunately, there is a work-around that may get you all the
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way home. Reset the machine and boot the kcopy floppy again, but this
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time, as the kernel is booting, tap periodically on the num-lock key
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until the kcopy prompt appears. Your keyboard should respond properly.
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Once your system is on the hard disk the problem generally goes away.
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Some folks for whom the problem persists even after this stage find
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relief in switching to the SYSCONS console driver (see /sys/i386/conf/SYSCONS),
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which is in any case far more featureful than pccons and a recommended
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upgrade.
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2 Hardware compatibility
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------------------------
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2.1: What kind of hard drives does FreeBSD run on?
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FreeBSD supports ST-506 (sometimes called ``MFM''), RLL, and ESDI
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drives, which are usually connected to WD-1002, WD-1003, or WD-1006
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controllers (although clones should also work). FreeBSD also supports
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IDE and SCSI hard drives.
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2.2: What SCSI controllers are supported?
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FreeBSD supports the following SCSI controllers:
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Adaptec AH-1542 Series <ISA>
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AH-1742 Series <EISA>
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Buslogic BT-445 Series <VLB> (but see section 1.5)
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BT-545 Series <ISA>
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BT-742 Series <EISA>
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BT-747 Series <EISA>
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Future Domain TMC-8XX/950 Series <ISA> (1.1.5 ONLY)
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Seagate ST-01/02 Series <ISA> (1.1.5 ONLY)
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UltraStor UH-14f Series <ISA>
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UH-34f Series <EISA/VLB>
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There is supposed to be a UltraStor 24f driver floating around, but
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we're not sure where (could someone please point us at it?).
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2.3: What CD-ROM drives are supported by FreeBSD?
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Any SCSI drive connected to a supported controller. Mitsumi
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LU002(8bit), LU005(16bit) and FX001D(16bit 2x Speed).
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FreeBSD does NOT support drives connected to a Sound Blaster or
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non-SCSI SONY or Panasonic drives. A general rule of thumb when
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selecting a CDROM drive for FreeBSD use is to buy a very standard SCSI
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model; they cost more, but deliver very solid performance in return.
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Do not be fooled by very cheap drives that, in turn, deliver VERY LOW
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performance! As always, you get what you pay for.
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The Mitsumi driver is known to be extremely slow compared to SCSI
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drives.
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2.4: What multi-port serial cards are supported by FreeBSD?
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AST/4 and BOCA 4/8/16 port cards. Some unnamed clone cards have also
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been known to work, especially those that claim to be AST compatible.
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Check the sio(4) man page to get more information on configuring such
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cards.
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2.5: Does FreeBSD support the AHA-2742 SCSI adapter from Adaptec?
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No, FreeBSD does not. This is due to Adaptec's unwillingness to
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supply programming information under other than non-disclosure. This
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is unfortunate, but there's nothing we can do about it.
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2.6: I have a Mumbleco bus mouse. Is it supported and if so, how do I set
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it up for XFree86?
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FreeBSD supports the Logitech and ATI Inport bus mice. You need to
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add the following line to the kernel config file and recompile for the
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Logitech and ATI mice:
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device mse0 at isa? port 0x23c tty irq6 vector mseintr
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2.7: I have a PS/2 mouse (`keyboard' mouse) [Alternatively: I have a
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laptop with a track-ball mouse]. How do I use it?
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<1.1.5>: The PS/2 mouse is part of the system. See the psm0 driver
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description in /sys/doc/options.doc.
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2.8: What types of tape drives are supported under FreeBSD?
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FreeBSD supports SCSI, QIC-02 and QIC-40/80 (Floppy based) tape
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drives. This includes 8-mm (aka Exabyte) and DAT drives.
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2.9: What sound cards are supported by FreeBSD?
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FreeBSD supports the SoundBlaster, SoundBlaster Pro, Pro Audio
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Spectrum 16, AdLib and Gravis UltraSound sound cards. There is also
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limited support for MPU-401 and compatible MIDI cards. The
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SoundBlaster 16 and SoundBlaster 16 ASP cards are not yet supported.
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NOTE: This is only for sound! This driver does not support CD-ROMs,
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SCSI or joysticks on these cards.
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2.10: What network cards does FreeBSD support?
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There is support for the following cards:
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`ed' driver:
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NE2000 and 1000
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WD/SMC 8003, 8013 and Elite Ultra (8216)
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3Com 3c503
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And clones of the above
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`ie' driver:
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AT&T EN100/StarLAN 10
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`is' driver:
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Isolan AT 4141-0
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Isolink 4110
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`ep' driver:
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3com 3c509 (*)
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(*)The `ep' driver is known to have some problems; see the
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/usr/src/KNOWNBUGS file for more details.
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2.11: I have a 386/486sx/486SLC machine without a math co-processor.
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Will this cause me any problems?
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Generally no, but there are circumstances where you will take a hit,
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either in performance or accuracy of the math emulation code (see
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section 4.1). In particular, drawing arcs in X will be VERY slow. It
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is highly recommended that you lay out the $50 or so for a math
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co-processor; it's well worth it. NOTE: Some math co-processors are
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better than others. It pains us to say it, but nobody ever got fired
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for buying Intel. Unless you're sure it works with FreeBSD, beware of
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clones.
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2.12: I am about to buy a new machine to run FreeBSD on and
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want an idea of what other people are running. Is there list
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of other systems anywhere?
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Yes. Please look at the file FAQ/Systems-1.1.FAQ. This file
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is a listing of hardware that people are running in their machines.
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Please note, this is a raw listing of equipment that other users
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have sent in.
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3 Commercial Applications
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-------------------------
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Note: This section is still very sparse, though we're hoping, of
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course, that companies will add to it! :) The FreeBSD group has no
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financial interest in any of the companies listed here but simply
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lists them as a public service (and feels that commercial interest in
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FreeBSD can have very positive effects on FreeBSD's long-term
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viability). We encourage commercial software vendors to send their
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entries here for inclusion.
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3.1: Where can I get Motif for FreeBSD?
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Sequoia International provides commercial quality Motif 1.2.3
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development kits for FreeBSD 1.1 (with full shared library support)
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under the product name of `SWiM'. Due to licensing restrictions from
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the OSF, and the fact that Sequoia needs to make a living, these are
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NOT FREE, but nonetheless quite reasonably priced in comparison to
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many other commercial Motif distributions. Send electronic mail to
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<info@seq.com> for further information.
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3.2: What about other commercial quality development systems for FreeBSD?
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ParcPlace Systems, Inc., who currently provides their excellent
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`Object Interface & Object Builder' GUI development environment free
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of charge to Linux users, is considering the the FreeBSD platform and
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will make their intentions known fairly shortly.
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4 User Applications
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-------------------
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4.1: I want to run X, how do I go about it?
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First, get the XFree86 distribution of X11R5 from XFree86.cdrom.com.
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The version you want for FreeBSD 1.1 and later is XFree86 2.1. Follow
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the instructions for installation carefully. You may then wish to read
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the documentation for the ConfigXF86 tool, which assists you in
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configuring XFree86 for your particular graphics card/mouse/etc.
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4.1: I've been trying to run ghostscript on a 386 (or 486sx) with no
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math co-processor and I keep getting errors. What's up?
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<1.1.5>: For 1.1.5 you may add the following to your kernel config file and
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it will be compiled in.
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options GPL_MATH_EMULATE
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NOTE: You will need to remove the MATH_EMULATE option when you do this.
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4.2: If I want something like seyon, term, Kermit, emacs or any one of
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hundreds of popular freeware utilities, is there a good place to
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search through first?
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Yes, the FreeBSD `ports collection' was put together for just that
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purpose. It contains some of the most often requested languages,
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editors, mail and news reading programs, network software and many
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many megabytes of other types of useful goodies. CDROM people will
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probably have the ports collection already in /usr/ports, other folks
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can get at the latest snapshot of the entire collection in:
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ftp.FreeBSD.ORG:pub/FreeBSD/FreeBSD-current/ports
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Note that this FTP server permits getting entire directories as one
|
||
(optionally gzipped or compressed) tar file. Read the FTP welcome
|
||
banner carefully for details.
|
||
|
||
|
||
4.3: I want all this neat software, but I haven't got the space or
|
||
CPU power to compile it all myself. Is there any way of getting
|
||
binaries?
|
||
|
||
Yes. We support the concept of a `package', which is essentially a
|
||
gzipped binary distribution with a little extra intelligence embedded
|
||
in it for doing any custom installation work required. Packages can
|
||
also be installed or deinstalled again easily without having to know
|
||
the gory details. CDROM people will have a packages/ directory on
|
||
their CD, others can get the currently available packages from:
|
||
|
||
ftp.FreeBSD.ORG:pub/FreeBSD/packages-1.1
|
||
|
||
Note that all ports may not be available as packages, and that new
|
||
packages are constantly being added. It is always a good idea to
|
||
check periodically to see which packages are available. A README file
|
||
in the packages directory provides more details on the care and
|
||
feeding of the package software, so no explicit details will be given
|
||
here.
|
||
|
||
4.4: I'm trying to get Perl to work properly, but I keep getting
|
||
errors about dbm failures when I test it. How can I fix this?
|
||
|
||
The problem here is that the tests are written for an older version of
|
||
the dbm code. There is nothing wrong with perl and the errors can
|
||
be ignored.
|
||
|
||
4.5: I've been trying to get GCC 2.6.0 running on my system and it
|
||
keeps bombing. What can I do about?
|
||
|
||
Due to problems with 2.6.0 and the advent of FreeBSD 2.0, we do not
|
||
support GCC 2.6.0 and suggest that you wait for 2.0.
|
||
|
||
|
||
|
||
5 Miscellaneous Questions
|
||
----------------
|
||
|
||
5.1: I've heard of something called FreeBSD-current. How do I run it, and
|
||
where can I get more information?
|
||
|
||
Read the file /usr/src/share/FAQ/FreeBSD.current.policy,
|
||
it will tell you all you need to know.
|
||
|
||
|
||
5.2: What is this thing called `sup', and how do I use it?
|
||
|
||
SUP stands for Software Update Protocol, and was developed by CMU for
|
||
keeping their development trees in sync. We use it to keep remote
|
||
sites in sync with our central development sources.
|
||
|
||
To use it, you need to have direct internet connectivity (not just
|
||
mail or news). First, pick up the sup_bin.tgz package from:
|
||
|
||
ftp.FreeBSD.ORG:pub/FreeBSD/packages-1.1
|
||
|
||
Second, read the file /usr/src/share/FAQ/FreeBSD.sup.faq.
|
||
|
||
This file describes how to setup sup on your machine. You may also
|
||
want to look at /usr/src/contrib/FAQ/FreeBSD.*.supfile,
|
||
which are a set of supfiles for supping from FreeBSD.ORG
|
||
|
||
|
||
5.3: How do I create customized installation disks that I can give
|
||
out to other people at my site?
|
||
|
||
The entire process of creating installation disks and source and
|
||
binary archives is automated by various targets in
|
||
/usr/src/etc/Makefile. The information there should be enough to get
|
||
you started.
|
||
|
||
5.4: How do I re-build my system without clobbering the existing
|
||
installed binaries?
|
||
|
||
If you define the environment variable DESTDIR while running `make
|
||
world' or `make install', the newly-created binaries will be deposited
|
||
in a directory tree identical to the installed one, rooted at
|
||
${DESTDIR}. Some random combination of shared libraries modifications
|
||
and program rebuilds can cause this to fail in `make world', however.
|
||
|
||
|
||
5.5: When my system booted, it told me that ``(bus speed defaulted)''.
|
||
What does that mean?
|
||
|
||
The Adaptec 1542 SCSI host adapters allow the user to configure their
|
||
bus access speed in software. Previous versions of the 1542 driver tried
|
||
to determine the fastest usable speed and set the adapter to that. We
|
||
found that this breaks some users' systems, so you now have to define
|
||
the ``TUNE_1542''' kernel configuration option in order to have this
|
||
take place. Using it on those systems where it works may make your
|
||
disks run faster, but on those systems where it doesn't, your data could
|
||
be corrupted.
|
||
|
||
5.6: I would like to track changes to current and do not have net access.
|
||
Is there any way besides downloading the whole tree?
|
||
|
||
Yes, Poul-Henning has set up a source tracking list. Please email
|
||
majordomo@ref.tfs.com with a body of "get ctm-src-cur README" for
|
||
futher information.
|
||
|
||
5.7: How do I split up large binary files into smaller 240k files
|
||
like the distribution does?
|
||
|
||
Newer BSD based systems have a "-b" option to split that allows them to
|
||
split files on arbitary byte bondaries.
|
||
|
||
Here is an example from /usr/src/Makefile.
|
||
bin-tarball:
|
||
(cd ${DISTDIR}; \
|
||
tar cf - . \
|
||
gzip --no-name -9 -c | \
|
||
split -b 240640 - \
|
||
${RELEASEDIR}/tarballs/bindist/bin_tgz.)
|
||
|
||
5.8: I'm running Syscons and every morning my console locks up. What
|
||
is going on here?
|
||
|
||
This sounds like the "kill -1 syslogd" problem. Make sure that the
|
||
following is correct on your system.
|
||
1. The attributes of the following nodes are correct.
|
||
/dev/console
|
||
crw------- 1 root 0, 0 May 23 15:32 /dev/console
|
||
/dev/ttyv0
|
||
crw------- 1 root 12, 0 May 23 15:32 /dev/ttyv0
|
||
The part you are concerned with are the major and minor device numbers.
|
||
|
||
2. Make sure that getty is running on ttyv0 and NOT console.
|
||
|
||
3. If /dev/vga exists that it is a symlink to /dev/ttyv0.
|
||
|
||
5.9: I've had a couple of system panics and would like to be able
|
||
browse the system dumps. The normal kernel is stripped and
|
||
I don't want to run a bloated kernel. What can I do?
|
||
|
||
Please retrieve the file FAQ/FreeBSD.kdebug.FAQ. This
|
||
file covers the instructions for looking at system dumps.
|
||
|
||
5.10: I've got a Buslogic BT-946c with an Intel motherboard and
|
||
right after the kernel probes, my system hangs. How do I
|
||
fix it?
|
||
|
||
Two things here.
|
||
1. Some intel motherboards have fixed PCI INT pins and you will have
|
||
to match the BT-946c's INT to match the motherboards.
|
||
2. FreeBSD 1.1.5.1 expects the INT on a non-standard pin and you
|
||
will have to also match this one.
|
||
|
||
|
||
6 Kernel Configuration
|
||
----------------------
|
||
|
||
6.1: When I compile a kernel with multi-port serial code, it tells me
|
||
that only the first port is probed and the rest skipped due to
|
||
interrupt conflicts. How do I fix this?
|
||
|
||
The problem here is that FreeBSD has code built-in to keep the kernel
|
||
from getting trashed due to hardware or software conflicts. The way
|
||
to fix this is to leave out the IRQ settings on other ports besides
|
||
the first. Here is a example:
|
||
|
||
#
|
||
# Multiport high-speed serial line - 16550 UARTS
|
||
#
|
||
device sio2 at isa? port 0x2a0 tty irq 5 flags 0x501 vector siointr
|
||
device sio3 at isa? port 0x2a8 tty flags 0x501 vector siointr
|
||
device sio4 at isa? port 0x2b0 tty flags 0x501 vector siointr
|
||
device sio5 at isa? port 0x2b8 tty flags 0x501 vector siointr
|
||
|
||
|
||
6.2: FreeBSD is supposed to come with support for QIC-40/80 drives but
|
||
when I look, I can't find it.
|
||
|
||
You need to uncomment the following line in the generic config file
|
||
(or add it to your config file) and recompile.
|
||
|
||
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
|
||
disk fd0 at fdc0 drive 0
|
||
disk fd1 at fdc0 drive 1
|
||
#tape ft0 at fdc0 drive 2
|
||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||
|
||
You will have a device called /dev/ft0, which you can write to through
|
||
a special program to manage it called `ft' - see the man page on ft for
|
||
further details. Versions previous to -current also had some trouble dealing
|
||
wiht bad tape media; if you have trouble where ft seems to go back and forth
|
||
over the same spot, try grabbing the latest version of ft from /usr/src/sbin/ft
|
||
in current and try that.
|
||
|
||
|
||
6.3: Does FreeBSD support IPC primitives like those in System V?
|
||
|
||
Yes, FreeBSD supports System V-style IPC. This includes shared
|
||
memory, messages and semaphores. You need to add the following lines
|
||
to your kernel config to enable them.
|
||
|
||
options SYSVSHM
|
||
options "SHMMAXPGS=64" # 256Kb of sharable memory
|
||
options SYSVSEM # enable for semaphores
|
||
options SYSVMSG # enable for messaging
|
||
|
||
Recompile and install.
|
||
|
||
|
||
6.4: Are there any utilities that make configuring a kernel easier?
|
||
|
||
Well, yes and no. Look in /sys/i386/doc/options.doc (/sys/doc on post
|
||
1.1 systems) for a list of kernel options you can set, and what they
|
||
do. For a friendlier front-end to the process, see
|
||
/usr/src/contrib/configit
|
||
|
||
|
||
6.5: Will FreeBSD ever support other architectures?
|
||
|
||
Several different groups have expressed interest in working on
|
||
multi-architecture support for FreeBSD. If you are interested in
|
||
doing so, please contact the developers at
|
||
<hackers@FreeBSD.ORG> for more information on our
|
||
strategy for porting.
|
||
|
||
|
||
6.6: I just wrote a device driver for a Foobar Systems, Inc.
|
||
Integrated Adaptive Gronkulator card. How do I get the
|
||
appropriate major numbers assigned?
|
||
|
||
This depends on whether or not you plan on making the driver publicly
|
||
available. If you do, then please send us a copy of the driver source
|
||
code, plus the appropriate modifications to files.i386, a sample
|
||
configuration file entry, and the appropriate MAKEDEV code to create
|
||
any special files your device uses. If you do not, or are unable to
|
||
because of licensing restrictions, then character major number 32 and
|
||
block major number 8 have been reserved specifically for this purpose;
|
||
please use them. In any case, we'd appreciate hearing about your
|
||
driver on <hackers@FreeBSD.ORG>.
|
||
|
||
6.7: I'm wanting to switch console drivers to Syscons. I changed my
|
||
kernel config file to run Syscons, but when I reboot the system
|
||
locks up! How do I fix it?
|
||
|
||
There are four things that need to be done to properly install syscons
|
||
on a system.
|
||
1. Add the following line to your kernel config file while deleting the
|
||
line for pccons.
|
||
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
|
||
(Note the changed vector 'scintr'. It is a common error to change the
|
||
device name but NOT the vector.
|
||
|
||
2. Add the following option to your config file.
|
||
options "NCONS=6" # Change to reflect the number of consoles
|
||
|
||
3. Modify /etc/ttys to enable gettys on ttyv0 - ttyv??. Here is an
|
||
example line.
|
||
ttyv0 "/usr/libexec/getty Pc" Pc3 on secure
|
||
Please make sure that you have disabled the getty on /dev/console.
|
||
|
||
4. Create the device nodes in /dev. This is done useing the MAKEDEV
|
||
script located in that directory. Here is a command line that will create
|
||
6 virtual consoles.
|
||
MAKEDEV vty6
|
||
If /dev/vga exists, it should now be a symlink to /dev/ttyv0.
|
||
|
||
NOTE: If you are going to be running X, you will need an unused vty that
|
||
has no getty running on it.
|
||
|
||
|
||
|
||
7 System Administration
|
||
-----------------------
|
||
|
||
7.1: How do I add a user easily? I read the man page and am more confused
|
||
than ever! [Alternatively: I didn't read the man page, I never read
|
||
man pages! :-) ]
|
||
|
||
Look at Gary Clark's Perl package ``AddIt'', which may be found in
|
||
/usr/src/contrib/adduser. This is a first attempt at solving the
|
||
problem and may be replaced with a more complex but capable solution
|
||
later.
|
||
|
||
|
||
7.2: I'm trying to use my printer and keep running into problems. I tried
|
||
looking at /etc/printcap, but it's close to useless. Any ideas?
|
||
|
||
Yes, you can pick up Andreas Klemm's apsfilter package from:
|
||
|
||
ftp.germany.eu.net:pub/comp/i386/Linux/Local.EUnet/People/akl/apsfilter-1.11.gz
|
||
|
||
This is a complete package for printing text, PS and DVI files. It
|
||
requires ghostscript and dvips.
|
||
|
||
If you are looking for a simple printcap just for PS and text files,
|
||
try picking up the printcap01 sources in:
|
||
|
||
/usr/src/contrib/FAQ/code/printcap01
|
||
|
||
NOTE: We're looking for printcap entries for all printers. If you
|
||
have one, or a filter for one, please send it or mail us a pointer to
|
||
<FreeBSD-FAQ@FreeBSD.ORG>. Thanks!
|
||
|
||
7.3: Help! I've lost my root password! How do I log in now?
|
||
Alternatively: I botched something bad in my root partition
|
||
that keeps me from booting, how do I fix it!?
|
||
|
||
Follow these steps:
|
||
|
||
1. First off, you need to boot the system single-user: Do this by rebooting
|
||
or resetting the machine, and when you come to the very first boot prompt
|
||
(the one you probably generally just hit `return' at or wait for it to
|
||
time-out) type:
|
||
|
||
386bsd -s
|
||
|
||
This will send the `-s' flag to init(1) telling it to not bring you up all
|
||
the way into multi-user mode. The system should come up single-user and
|
||
present you with a simple `#' prompt.
|
||
|
||
2. Now is probably a good time to type `fsck' and make sure your filesystems
|
||
are alright. If problems on your root filesystem are found and fixed, I would
|
||
recommend hitting the reset switch again and going back to step 1. Your
|
||
filesystems should all check fine the second time.
|
||
|
||
3. At this point, your root filesystem is mounted *read only* for safety.
|
||
If the problems you must fix are not on the root fs then I recommend that
|
||
you simply leave it this way and fix the other problems. If you need to
|
||
write to the root fs (fixing passwords requires this, for one thing) and
|
||
you're using SCSI for your root fs then type:
|
||
|
||
mount -u /dev/sd0a /
|
||
|
||
If you're using IDE/ESDI for your rootfs, then instead type:
|
||
|
||
mount -u /dev/wd0a /
|
||
|
||
This will remount your root filesystem read/write and allow you to make
|
||
your changes. Once you have done so, I recommend another reboot. -Jordan
|
||
|
||
|
||
8 Networking
|
||
------------
|
||
|
||
8.1: Where can I get information booting FreeBSD `diskless', that is
|
||
booting and running a FreeBSD box from a server rather than having
|
||
a local disk?
|
||
|
||
Please read /sys/i386/netboot/netboot.doc.
|
||
|
||
|
||
8.2: I've heard that you can use a FreeBSD box as a dedicated network
|
||
router - is there any easy support for this?
|
||
|
||
Internet standards and good engineering practice prohibit us from
|
||
providing packet forwarding by default in FreeBSD. You can enable
|
||
this support by adding `options GATEWAY' to your kernel configuration
|
||
file and recompiling. In most cases, you will also need to run a
|
||
routing process to tell other systems on your network about your
|
||
router; FreeBSD comes with the standard BSD routing daemon routed(8),
|
||
or for more complex situations you may want to try GateD (available by
|
||
FTP from gated.Cornell.edu). FreeBSD is supported as of 3_5Alpha7.
|
||
|
||
It is our duty to warn you that, even when FreeBSD is configured in
|
||
this way, it does not completely comply with the Internet standard
|
||
requirements for routers; however, it comes close enough for ordinary
|
||
usage.
|
||
|
||
There is a standard `router floppy' that you can boot on a FreeBSD
|
||
machine to configure it as a network router. Please look in:
|
||
|
||
freefall.cdrom.com:pub/incoming/freertr
|
||
|
||
and follow the instructions.
|
||
|
||
|
||
8.3: Does FreeBSD support SLIP and PPP?
|
||
|
||
Yes. See the man pages for slattach(8) and/or pppd(8) if you're using
|
||
FreeBSD to connect to another site. If you're using FreeBSD as a
|
||
server for other machines, look at the man page for sliplogin(8).
|
||
You may also want to take a look at the slip FAQ in:
|
||
FAQ/FreeBSD.slip.dialup.faq
|
||
|
||
8.4: How do I set up NTP?
|
||
|
||
NTP configuration is so complex and widely variable from site to site
|
||
that it would be impossible to make a blanket statement here. Your
|
||
best bet is to ask whoever's in charge of NTP at your site or network
|
||
provider; chances are that they are running a similar version of NTP
|
||
to the one that we provide, and they can probably provide you with the
|
||
right configuration files to get things going.
|
||
|
||
If you can't find anyone in charge, you should examine the files in
|
||
/usr/src/contrib/xntpd/doc and see if they help any. If not, you
|
||
could ask on the comp.protocols.time.ntp newsgroup, or the
|
||
<ntp@ni.umd.edu> mailing-list.
|
||
|
||
8.5: How do I get my network set up? I don't see how to make my
|
||
/dev/ed0 device!
|
||
|
||
In the Berkeley networking framework, network interfaces are only
|
||
directly accessible by kernel code. Please see the /etc/netstart file
|
||
and the manual pages for the various network programs mentioned there
|
||
for more information. If this leaves you totally confused, then you
|
||
should pick up a book describing network administration on another
|
||
BSD-related operating system; with few significant exceptions,
|
||
administering networking on FreeBSD is basically the same as on SunOS
|
||
4.0 or Ultrix.
|
||
|
||
8.6: How do I get my 3C503 to use the other network port?
|
||
|
||
Use `ifconfig ed0' to see whether the ALTPHYS flag is set, and then
|
||
use either `ifconfig ed0 altphys' if it was off, or `ifconfig ed0
|
||
-altphys' if it was on.
|
||
|
||
8.7: I'm having problems with NFS to/from FreeBSD and my Wuffotronics
|
||
Workstation / generic NFS appliance, where should I look first?
|
||
|
||
Certain PC network cards are better than others (to put it mildly) and
|
||
can sometimes cause problems with network intensive applications like
|
||
NFS. See /usr/src/share/FAQ/NFS.FAQ for more information on this
|
||
topic.
|
||
|
||
8.8: I want to enable IP multicast support on my FreeBSD box, how do I do it?
|
||
[Alternatively: What the heck IS multicasting and what applications
|
||
make use of it?]
|
||
|
||
First off, to you'll need to rebuild a kernel with multicast support in it.
|
||
This requires that you have the sources to at least the kernel and the config
|
||
utility. See /usr/src/sys/i386/conf/LINT for its comments on multicast; you'll
|
||
need to set the MROUTING and MULTICAST options as shown there.
|
||
|
||
Further reading/exploration for those interested in multicast:
|
||
|
||
Product Description Where
|
||
--------------- ----------------------- ---------------------------------------
|
||
faq.txt Mbone FAQ ftp.isi.edu:/mbone/faq.txt
|
||
imm/immserv IMage Multicast ftp.hawaii.edu:/paccom/imm.src.tar.Z
|
||
for jpg/gif images.
|
||
nv Network Video. ftp.parc.xerox.com:
|
||
/pub/net-reseach/exp/nv3.3alpha.tar.Z
|
||
vat LBL Visual Audio Tool. ftp.ee.lbl.gov:
|
||
/conferencing/vat/i386-vat.tar.Z
|
||
wb LBL White Board. ftp.ee.lbl.gov:
|
||
/conferencing/wb/i386-wb.tar.Z
|
||
mmcc MultiMedia Conference ftp.isi.edu:
|
||
Control program /confctrl/mmcc/mmcc-intel.tar.Z
|
||
rtpqual Tools for testing the ftp.psc.edu:/pub/net_tools/rtpqual.c
|
||
quality of RTP packets.
|
||
vat_nv_record Recording tools for vat ftp.sics.se:archive/vat_nv_record.tar.Z
|
||
and nv.
|
||
|
||
[Many thanks to Jim Lowe for providing multicast support for FreeBSD, and this
|
||
information]
|
||
|
||
|
||
9 Serial Communications
|
||
-----------------------
|
||
|
||
9.1: When I do a set line in Kermit it locks up, what's the problem?
|
||
|
||
The problem here is that FreeBSD thinks it's talking to a incoming
|
||
modem connection, and is waiting for carrier to come up on it before
|
||
completing the open. To disable modem control, do an:
|
||
|
||
stty -f /dev/ttyXX clocal
|
||
|
||
(Where `ttyXX' is the tty port you're using). If you use a given port
|
||
only for outgoing connections, you may wish to put this command in
|
||
your /etc/rc.local to avoid having to do it every time you reboot your
|
||
system.
|
||
|
||
|
||
NOTE: Anyone wishing to submit a FAQ entry on how to get tip and cu working
|
||
would have it much appreciated! We all use Kermit over here! :-)
|
||
|
||
-----------------------------------------------------------------------------
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||
If you see a problem with this FAQ, or wish to submit an entry, please
|
||
mail us at <FreeBSD-FAQ@FreeBSD.ORG>. We appreciate your
|
||
feedback, and cannot make this a better FAQ without your help!
|
||
|
||
|
||
FreeBSD Core Team
|
||
|
||
-----------------------------------------------------------------------------
|
||
|
||
ACKNOWLEDGMENTS:
|
||
|
||
Gary Clark II - Our head FreeBSD FAQ maintenance man
|
||
Jordan Hubbard - Janitorial services (I don't do windows)
|
||
Garrett Wollman - Networking and formatting
|
||
Robert Oliver, Jr. - Ideas and dumb questions (That made me think)
|
||
Ollivier Robert - Invaluable feedback and contributions
|
||
The FreeBSD Team - Kvetching, moaning, submitting data
|
||
|
||
And to any others we've forgotten, apologies and heartfelt thanks!
|
||
|