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1 cam 1.4 <?xml version="1.0" encoding="UTF-8"?>
2 nightmorph 1.20 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-freebsd.xml,v 1.19 2006/05/26 19:21:37 nightmorph Exp $ -->
3 neysx 1.1 <!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4    
5     <guide link="/doc/en/gentoo-freebsd.xml">
6     <title>A short guide to Gentoo/FreeBSD</title>
7    
8     <author title="Author">
9     <mail link="ignacio.arquelatour@gmail.com">Ignacio Arque-Latour</mail>
10     </author>
11     <author title="Author">
12     <mail link="citizen428@gentoo.org">Michael Kohl</mail>
13     </author>
14     <author title="Author">
15 rane 1.8 <mail link="angusyoung@gentoo.org">Otavio R. Piske</mail>
16 neysx 1.1 </author>
17     <author title="Author">
18     <mail link="ka0ttic@gentoo.org">Aaron Walker</mail>
19     </author>
20    
21     <abstract>
22     This document gives some general information on FreeBSD, as well as
23     installation instructions for Gentoo/FreeBSD. It also includes some reference
24     for people interested in helping out with development.
25     </abstract>
26    
27     <!-- The content of this document is licensed under the CC-BY-SA license -->
28     <!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
29     <license/>
30    
31 nightmorph 1.19 <version>2.5</version>
32     <date>2006-05-26</date>
33 neysx 1.1
34     <chapter>
35     <title>Introduction to FreeBSD</title>
36     <section>
37     <title>What is FreeBSD?</title>
38     <body>
39    
40     <p>
41     <uri link="http://www.freebsd.org/">FreeBSD</uri> is a free (<uri
42     link="http://www.freebsd.org/copyright/freebsd-license.html">license</uri>)
43     Unix-like operating system. Back in 1993 when development of <uri
44     link="http://www.386bsd.org/">386BSD</uri> stopped, two projects were born:
45     <uri link="http://www.netbsd.org/">NetBSD</uri>, commonly known to run on a
46 nightmorph 1.19 huge number of architectures, and FreeBSD which supports the x86, amd64, ia64,
47     sparc64 and alpha platforms.FreeBSD is renowned for its stability, performance
48     and security, thus being used from small to huge companies all over the world.
49     FreeBSD's current production release version is 6.1, which is also used as the
50     foundation for the Gentoo/FreeBSD project. The previous 5.x branch is being
51     continued by the FreeBSD project as a service release, but is no longer worked
52     on by the Gentoo/FreeBSD developers.
53 neysx 1.1 </p>
54    
55     </body>
56     </section>
57     <section>
58     <title>What is Gentoo/FreeBSD?</title>
59     <body>
60    
61     <p>
62 nightmorph 1.20 <uri link="/proj/en/gentoo-alt/bsd/fbsd/">Gentoo/FreeBSD</uri> is a subproject
63     of the <uri link="/proj/en/gentoo-alt/">Gentoo/Alt project</uri>, with the
64     goal of providing a fully-capable FreeBSD operating system featuring design
65     sensibilities taken from Gentoo Linux, such as the init system and the Portage
66     package management system.
67 neysx 1.1 </p>
68    
69     </body>
70     </section>
71     <section>
72     <title>FreeBSD and Linux</title>
73     <body>
74    
75     <p>
76     Users migrating from Linux to FreeBSD commonly consider the two operating
77     systems "almost the same". In fact, FreeBSD really shares a lot of similarities
78     with Linux distributions in general. Nevertheless, it has some key differences
79     that are worth noting:
80     </p>
81    
82     <ul>
83     <li>
84     Contrary to Linux, which actually only refers to the kernel, FreeBSD is a
85     complete operating system, consisting of a C library, userland tools and
86     much more. This development approach makes the overall system very
87 cam 1.4 consistent.
88 neysx 1.1 </li>
89     <li>
90     Contrary to the Linux kernel, FreeBSD development is not led by one person,
91     but instead managed by a small group of people called the <uri
92     link="http://www.freebsd.org/doc/en_US.ISO8859-1/articles/contributors/staff-core.html">Core
93     Team</uri>.
94     </li>
95     </ul>
96    
97     <p>
98     Besides, FreeBSD also has some technical differences which set it apart
99     from Linux. Some of them are very important to know, even if you don't plan on
100     joining the Gentoo/FreeBSD development effort:
101     </p>
102    
103     <ul>
104     <li>
105 cam 1.4 To get run-time dynamic linking functions like <c>dlopen()</c>, programs do
106 neysx 1.1 not need to be linked against libdl like on GNU/Linux. Instead they are
107 cam 1.4 linked against libc.
108 neysx 1.1 </li>
109     <li>
110     FreeBSD doesn't have an official tool for kernel compilation, thus you'll
111 cam 1.4 have to resolve feature dependencies on your own.
112 neysx 1.1 </li>
113     <li>
114     FreeBSD uses UFS/UFS-2 as its filesystems and has no official support for
115     e.g. ReiserFS or XFS. However, there are projects for adding read-only
116 cam 1.4 support for these filesystems. Accessing ext2/ext3 partitions is already
117     possible, but you cannot install your system on them.
118 neysx 1.1 </li>
119     </ul>
120    
121     </body>
122     </section>
123     </chapter>
124    
125     <chapter>
126     <title>Installing Gentoo/FreeBSD</title>
127     <section>
128     <title>Installation instructions</title>
129     <body>
130    
131     <p>
132     After this short introduction, it's about time to finally install
133     Gentoo/FreeBSD. Unfortunately, we currently lack our own installation media, so
134     you have to choose between two alternative installation methods. The first
135     would be to use an existing FreeBSD installation to partition your hard drive
136     and use it as a base for installing Gentoo/FreeBSD. Alternatively, you can also
137     use the excellent <uri link="http://www.freesbie.org/">FreeSBIE LiveCD</uri> as
138     an installation medium for Gentoo/FreeBSD.
139     </p>
140    
141 neysx 1.15 <note>
142     If you are intending to use FreeSBIE for installing Gentoo/FreeBSD, please make
143     sure to use a version based on FreeBSD 6.0! Experimental versions can be downloaded
144     from <uri link="http://torrent.freesbie.org/">FreeSBIE's Bittorrent tracker</uri> and
145     version 20060118 has been tested to work for the purposes described in this document.
146     </note>
147    
148 rane 1.17 <note>
149     We use <c>ee</c> as a default editor in this guide but you can choose
150     <c>vim</c>, <c>nano</c> or any other editor you like to configure your system.
151     </note>
152    
153 neysx 1.1 <p>
154     Before you can begin with the installation, you have to setup a hard disk for
155     use with Gentoo/FreeBSD. This can either be done via <c>sysinstall</c>
156     (available from a current FreeBSD installation as well as from within FreeSBIE)
157 neysx 1.15 or by manually using the commands <c>fdisk</c>, <c>disklabel</c> and <c>newfs</c>.
158     If you have never set up a FreeBSD system before, <c>sysinstall</c> may be the
159     better option for you. In that case make sure that you don't use the sysinstall
160     launched by FreeBSD's or FreeSBIE's installers, but use the following command instead:
161     </p>
162    
163     <pre caption="Partitioning with sysinstall">
164     # <i>sysinstall diskPartitionEditor diskPartitionWrite diskLabelEditor diskLabelCommit</i>
165     </pre>
166    
167     <p>
168     If you face difficulties
169 neysx 1.1 while partitioning or formatting your hard disks, have a look at the great
170     <uri link="http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/">FreeBSD
171     Handbook</uri> or hop onto <c>#gentoo-bsd</c> on the Freenode IRC server.
172     </p>
173    
174     <p>
175     Once you're done setting up your disks, you have to create a mount point for
176     your Gentoo/FreeBSD installation and mount all the necessary partitions.
177     </p>
178    
179     <pre caption="Creating a mount point and mounting partitions">
180 rane 1.8 # <i>mkdir /mnt/gentoo</i>
181 neysx 1.1 <comment>(Replace X with the correct numbers for your hard disk.)</comment>
182 rane 1.8 # <i>mount /dev/adXsXa /mnt/gentoo</i>
183 neysx 1.1 </pre>
184    
185     <p>
186 neysx 1.15 If you're using the FreeSBIE LiveCD and you already had an UFS partition on
187     your hard disk, it has already been mounted read-only to <path>/mnt/ufs.1</path>.
188     If you want to use that location for your installation, you'll have to remount it
189     in read-write mode:
190     </p>
191    
192     <pre caption="Remounting a partition in read-write mode">
193 neysx 1.16 # <i>mount -u -o rw /mnt/ufs.1</i>
194 neysx 1.15 </pre>
195    
196     <p>
197 neysx 1.1 Now that you have mounted the target partition, it is time to fetch and unpack
198     a stage3 tarball.
199     </p>
200    
201     <pre caption="Obtaining and unpacking a stage3 tarball">
202 rane 1.8 # <i>cd /mnt/gentoo/</i>
203 neysx 1.1 <comment>(Any other Gentoo mirror which includes the experimental/ directory will also work.)</comment>
204 nightmorph 1.19 # <i>wget http://gentoo.osuosl.org/experimental/x86/freebsd/stages/gentoo-freebsd-6.1-stage-20060509.tar.bz2</i>
205     # <i>tar -jxvpf gentoo-freebsd-6.1-stage-20060509.tar.bz2</i>
206 neysx 1.1 <comment>(You can delete the tarball with the following command if you want to.)</comment>
207 nightmorph 1.19 # <i>rm gentoo-freebsd-6.1-stage-20060509.tar.bz2</i>
208 rane 1.3 </pre>
209    
210     <p>
211 cam 1.12 Before chrooting into the newly-extracted stage, you first must obtain an
212     up-to-date copy of the Gentoo/FreeBSD overlay. The easiest way to achieve this
213     is to to get our latest snapshot which you then extract to
214     <path>/mnt/gentoo/usr/local/portage</path>.
215 rane 1.3 </p>
216    
217 rane 1.8 <pre caption="Getting the Gentoo/FreeBSD Portage overlay">
218     # <i>cd /mnt/gentoo/usr/local/portage</i>
219 jkt 1.7 # <i>wget http://gentoo.osuosl.org/experimental/snapshots/portage-alt-overlay-latest.tar.bz2</i>
220     # <i>tar -xjf portage-alt-overlay-latest.tar.bz2</i>
221 jkt 1.11 <comment>(You now can safely delete the snapshot with the following command.)</comment>
222     # <i>rm portage-alt-overlay-latest.tar.bz2</i>
223 neysx 1.1 </pre>
224    
225     <p>
226 rane 1.8 Alternatively, you can also use Subversion to check out the current version of
227 yoswink 1.14 the overlay. If you are interested in this possibility, please refer to the
228     <uri
229     link="/proj/en/gentoo-alt/contribute/index.xml?part=1&amp;chap=3">Gentoo/ALT
230     overlay documentation</uri>.
231 jkt 1.7 </p>
232    
233     <p>
234 neysx 1.1 In order for your install to work, you need to mount the <path>/dev</path>
235     filesystem from the currently running system into the Gentoo/FreeBSD mount
236     point before proceeding with the chroot.
237     </p>
238    
239     <pre caption="Mounting the /dev filesystem and chrooting">
240 rane 1.8 # <i>mount -t devfs none /mnt/gentoo/dev/</i>
241     # <i>cp /etc/resolv.conf /mnt/gentoo/etc</i>
242     # <i>chroot /mnt/gentoo/ /bin/bash</i>
243 jkt 1.7 # <i>source /etc/profile</i>
244 neysx 1.1 </pre>
245    
246     <p>
247     After you got hold of the Gentoo/FreeBSD overlay, it's time to link
248     <path>/etc/make.profile</path> to the correct profile and add get your
249     <path>/etc/make.conf</path> ready for Gentoo/FreeBSD.
250     </p>
251    
252 rane 1.17 <p>
253     Now, you have to obtain a copy of the main Gentoo Portage tree, which depending
254     on your connection might take quite a while.
255     </p>
256    
257     <pre caption="Obtaining the Portage tree">
258     # <i>emerge --sync</i>
259     <comment>(It's also possible to retrieve the Portage tree in another way:)</comment>
260     # <i>cd /</i>
261     # <i>wget http://gentoo.osuosl.org/snapshots/portage-latest.tar.bz2</i>
262     # <i>tar -xjf portage-latest.tar.bz2 -C /usr/</i>
263     # <i>emerge --metadata</i>
264     </pre>
265    
266 neysx 1.1 <pre caption="Setting up the profile and editing /etc/make.conf">
267 nightmorph 1.19 # <i>ln -sf /usr/portage/profiles/default-bsd/fbsd/6.1/x86/ /etc/make.profile</i>
268 neysx 1.1 <comment>(FreeBSD's standard editor is ee, which is used to edit /etc/make.conf)</comment>
269     # <i>ee /etc/make.conf</i>
270     <comment>(Please make sure you add at least the following entries:)</comment>
271 nightmorph 1.19 CHOST="i686-gentoo-freebsd6.1"
272 rane 1.17 ACCEPT_KEYWORDS="~x86-fbsd"
273 neysx 1.1 FEATURES="-sandbox collision-protect"
274 jkt 1.7 PORTDIR_OVERLAY="/usr/local/portage/portage-alt-overlay"
275 neysx 1.1 </pre>
276    
277 neysx 1.15 <note>
278 rane 1.17 You can have a very limited system by using ~x86-fbsd keyword alone; you might
279     want to put ~x86 in your ACCEPT_KEYWORDS if you want access to more packages
280     but you might find broken dependencies and non-working packages; please rather
281     use package.keywords when testing packages and report working ones on <uri
282     link="http://bugs.gentoo.org">Bugzilla</uri> for the product Gentoo/Alt.
283 neysx 1.15 </note>
284    
285 neysx 1.1 <p>
286 cam 1.12 In order to boot correctly, you will need to create the <path>/proc</path>
287     directory.
288 jkt 1.11 </p>
289    
290     <pre caption="Creating the /proc directory">
291     # <i>mkdir /proc</i>
292     </pre>
293    
294     <p>
295     If you want, you can now rebuild the system's core packages.
296 neysx 1.1 </p>
297    
298 nightmorph 1.20 <pre caption="Rebuilding the FreeBSD core packages (optional)">
299 neysx 1.1 # <i>emerge -e system</i>
300     </pre>
301    
302 jkt 1.11 <p>
303 cam 1.12 When you did <c>emerge -e system</c>, the sources for the FreeBSD kernel got
304     installed to <path>/usr/src/sys</path>. If you skipped this step, you can get
305 jkt 1.11 them in the following way:
306     </p>
307    
308 nightmorph 1.20 <pre caption="Getting the FreeBSD kernel sources">
309 jkt 1.11 # <i>emerge freebsd-sources</i>
310     </pre>
311    
312     <p>
313 cam 1.12 Configuring and compiling a custom kernel is really different from compiling
314     Linux, so if you are not familiar with the process we encourage you to have a
315     look at <uri
316     link="http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html">
317 jkt 1.11 chapter 8</uri> of the FreeBSD handbook.
318     </p>
319    
320     <p>
321 cam 1.12 Please note that currently only the "Traditional" way of building the kernel is
322 jkt 1.11 supported on Gentoo/FreeBSD! Also note that <c>make install</c> will probably
323     ask you for a <path>/boot/device.hints</path> file. A default version can be
324     found in the <path>conf</path> subdirectory of the <c>GENERIC</c> configuration
325 neysx 1.15 and is called <path>GENERIC.hints</path>.
326 jkt 1.11 </p>
327    
328     <p>
329 cam 1.12 Now is the time to do some basic system configuration and settings. First, we
330     are going to setup the filesystem mounting points in <path>/etc/fstab</path>.
331 jkt 1.11 </p>
332    
333     <pre caption="Editing the filesystem in /etc/fstab">
334     # <i>ee /etc/fstab</i>
335     <comment>(This is an example, replace X and Y with the correct numbers for your hard disk.)</comment>
336     #Device Mountpoint Fstype Options Dump Pass
337     /dev/adXsYb none swap sw 0 0
338     /dev/adXsYa / ufs rw 1 1
339     /dev/adXsYe /usr/home ufs rw 2 2
340     /dev/adXsYd /tmp ufs rw 2 2
341     /dev/acdX /cdrom cd9660 ro,noauto 0 0
342     </pre>
343    
344     <p>
345     Now would also be a good time to set up your network connection before the final
346     reboot.
347     </p>
348    
349 rane 1.17 <p>
350     You can find all the information necessary to configure your network in the
351     <uri link="/doc/en/handbook/handbook-x86.xml?part=4&amp;chap=1">Gentoo
352     Handbook</uri>.
353     </p>
354 jkt 1.11
355     <p>
356 rane 1.17 To have your network interface activated at boot time, you have to add it to
357     the default runlevel.
358 vanquirius 1.13 </p>
359    
360     <pre caption="Adding your network adapter to the default runlevel">
361     # <i>rc-update add net.rl0 default</i>
362     </pre>
363    
364     <p>
365 rane 1.18 Your system's hostname can be changed in <path>/etc/conf.d/hostname</path>.
366 jkt 1.11 </p>
367    
368     <pre caption="Setting up the machine's hostname">
369 rane 1.17 # <i>ee /etc/conf.d/hostname</i>
370     <comment>(Set the HOSTNAME variable to your hostname)</comment>
371     HOSTNAME="tux"
372     </pre>
373    
374     <p>
375     You should also configure your domain name, which is done in the
376     <path>/etc/conf.d/domainname</path> file:
377     </p>
378    
379     <pre caption="Setting the domainname">
380     # <i>ee /etc/conf.d/domainname</i>
381     <comment>(Set the DNSDOMAIN variable to your domain name)</comment>
382     DNSDOMAIN="homenetwork"
383     </pre>
384    
385     <p>
386     If you have a NIS domain, you need to define it in the
387     <path>/etc/conf.d/domainname</path> file:
388     </p>
389    
390     <pre caption="Setting the NIS domainname">
391     # <i>ee /etc/conf.d/domainname</i>
392     <comment>(Set the NISDOMAIN variable to your NIS domain name)</comment>
393     NISDOMAIN="my-nisdomain"
394 jkt 1.11 </pre>
395    
396     <p>
397 cam 1.12 In case you need to use another keyboard layout for your language, you have to
398     set the correct value in <path>/etc/conf.d/syscons</path>. The following example
399     uses the Spanish layout, so you'll have to adjust it to your need if you want to
400     use another one.
401 jkt 1.11 </p>
402    
403     <pre caption="Changing your keyboard layout (Optional)">
404     # <i>ee /etc/conf.d/syscons</i>
405     KEYMAP="spanish.iso.acc"
406     <comment>(Possible layouts can be found in /usr/share/syscons/keymaps).</comment>
407     </pre>
408    
409 neysx 1.1 <impo>
410     Please make absolutely sure you add your new Gentoo/FreeBSD installation to the
411 fox2mike 1.2 configuration of your bootloader, otherwise you won't be able to boot your newly
412 cam 1.12 installed system! If you don't have another bootloader installed, you should use
413 jkt 1.11 <c>boot0</c>, as it is currently the only one supported by FreeBSD. In this case
414 cam 1.12 please don't forget to use your other operating systems to <c>boot0</c>'s
415 jkt 1.11 configuration.
416 neysx 1.1 </impo>
417    
418 fox2mike 1.2 <pre caption="Installing and setting up boot0">
419     # <i>emerge boot0</i>
420     <comment>(Leave the chroot environment)</comment>
421     # <i>exit</i>
422     <comment>(Issued from outside the chroot)</comment>
423 neysx 1.15 # <i>fdisk -B -b /mnt/gentoo/boot/boot0 /dev/adX</i>
424 rane 1.8 # <i>chroot /mnt/gentoo /bin/bash</i>
425 fox2mike 1.2 # <i>disklabel -B adXsY</i>
426     </pre>
427    
428     <p>
429 rane 1.17 If you need additional information on setting up <c>boot0</c>, please consult
430 cam 1.12 <uri
431     link="http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/boot.html">chapter
432     12</uri> of the FreeBSD handbook.
433 fox2mike 1.2 </p>
434    
435     <p>
436 cam 1.12 Now would be a good time to set a password for the <c>root</c> user and to add
437 jkt 1.11 another user account for your day-to-day work.
438 fox2mike 1.2 </p>
439    
440 jkt 1.11 <pre caption="Changing the root password and adding a new user">
441     # <i>passwd</i>
442     <comment>(If you need help in adding a user please consult the FreeBSD handbook).</comment>
443     # <i>adduser</i>
444     </pre>
445    
446 fox2mike 1.2 <p>
447 cam 1.12 Congratulations, you have just finished your Gentoo/FreeBSD installation which
448     you can start exploring after the final reboot. Have fun!
449 fox2mike 1.2 </p>
450    
451 jkt 1.11 <pre caption="Rebooting the system">
452     # <i>exit</i>
453     # <i>reboot</i>
454     </pre>
455    
456 neysx 1.1 </body>
457     </section>
458     </chapter>
459    
460     <chapter>
461     <title>Developing for Gentoo/FreeBSD</title>
462     <section>
463 cam 1.4 <title>How to help</title>
464 neysx 1.1 <body>
465    
466     <p>
467     There are many things you could help with, depending on your skill level and
468     spare time:
469     </p>
470    
471     <ul>
472     <li>
473 cam 1.12 Working on current ebuilds: this means working closely with ebuild
474     maintainers in order to create patches or modify ebuilds in a way that can
475     be accepted into the main tree.
476 neysx 1.1 </li>
477     <li>
478     Security: if you are into security, we need you! Although security
479     advisories from the FreeBSD project are tracked and fixed, we can always
480 cam 1.4 use help in this area.
481 neysx 1.1 </li>
482     <li>
483     Contacts: we need people who can get in touch with FreeBSD developers to
484     maintain contacts between us and the original project to exchange patches
485     and discuss various problems and their solutions. Note that this should
486 cam 1.4 never involve any kind of spamming of mailing lists or IRC channels.
487 neysx 1.1 </li>
488     <li>
489     Testing: the more people are actively using Gentoo/FreeBSD, the more bugs
490     will be discovered, which helps us improving the quality of the port. If
491     you are good at describing bugs or problems, we definitely want to hear
492 cam 1.4 from you.
493 neysx 1.1 </li>
494     <li>
495     Other areas where we need help include: system ebuilds, baselayout,
496     creation of installation CDs, documentation, kernel hacking.
497     </li>
498     </ul>
499    
500     </body>
501     </section>
502    
503     <section>
504     <title>Known issues</title>
505     <body>
506    
507     <p>
508     At the moment, there are still quite a lot of known issues. Here are the ones
509     really worth noting:
510     </p>
511    
512     <ul>
513     <li>
514     Some init scripts depend on the clock service which we don't provide right
515     now. You can just remove it from the dependencies of the script and report
516     that on our <uri link="http://bugs.gentoo.org/">bugzilla</uri>. Please
517 cam 1.4 remember to use the "Gentoo BSD" product for your submission.
518 neysx 1.1 </li>
519     <li>glib and gnome in general need a lot of fixes to be backported.</li>
520 neysx 1.15 <li>
521     The init system currently provided by Gentoo/FreeBSD's baselayout package is
522     not the same version used by Gentoo Linux and lacks some of its features. Work
523     on making newer versions working is underway.
524     </li>
525 neysx 1.1 </ul>
526    
527     </body>
528     </section>
529     </chapter>
530    
531     <chapter>
532     <title>Contact</title>
533     <section>
534     <body>
535    
536     <p>
537 cam 1.4 A list of Gentoo/FreeBSD developers can be found at the <uri
538 neysx 1.1 link="/proj/en/gentoo-alt/bsd/fbsd/">project page</uri>. Other ways to contact
539     Gentoo/FreeBSD developers include our IRC Channel <c>#gentoo-bsd</c> on
540 jkt 1.6 Freenode, as well as the <uri link="/main/en/lists.xml">gentoo-bsd mailing
541     list</uri>.
542 neysx 1.1 </p>
543    
544     </body>
545     </section>
546     </chapter>
547     </guide>

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