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Will wonders never cease. ck-sources is back in the tree. I discovered this after reading the front page of g.o, so I added 'em back to the list.

1 swift 1.1 <?xml version="1.0" encoding="UTF-8"?>
2 nightmorph 1.59 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-kernel.xml,v 1.58 2009/12/26 14:12:58 nightmorph Exp $ -->
3 nightmorph 1.58 <!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4 swift 1.1
5 nightmorph 1.58 <guide>
6 swift 1.1 <title>Gentoo Linux Kernel Guide</title>
7 nightmorph 1.58
8 swift 1.1 <author title="Author">
9 nightmorph 1.44 <mail link="swift@gentoo.org">Sven Vermeulen</mail>
10 swift 1.1 </author>
11     <author title="Contributor">
12 swift 1.17 <mail link="lostlogic@gentoo.org">Brandon Low</mail>
13 swift 1.1 </author>
14     <author title="Editor">
15 swift 1.17 <mail link="dsd@gentoo.org">Daniel Drake</mail>
16 swift 1.1 </author>
17     <author title="Editor">
18 swift 1.17 <mail link="carl@gentoo.org">Carl Anderson</mail>
19     </author>
20     <author title="Editor">
21     <mail link="peesh@gentoo.org">Jorge Paulo</mail>
22 swift 1.1 </author>
23 bennyc 1.9 <author title="Editor">
24     <mail link="bennyc@gentoo.org">Benny Chuang</mail>
25     </author>
26 neysx 1.10 <author title="Editor">
27 neysx 1.22 <mail link="greg_g@gentoo.org">Gregorio Guidi</mail>
28 neysx 1.10 </author>
29 fox2mike 1.35 <author title="Editor">
30     <mail link="fox2mike@gentoo.org">Shyam Mani</mail>
31     </author>
32 nightmorph 1.48 <author title="Editor">
33 nightmorph 1.47 <mail link="nightmorph@gentoo.org">Joshua Saddler</mail>
34     </author>
35 swift 1.1
36     <abstract>
37 bennyc 1.9 This document gives you an overview on all kernel sources that Gentoo
38 swift 1.1 provides through Portage.
39     </abstract>
40    
41 fox2mike 1.35 <!-- The content of this document is licensed under the CC-BY-SA license -->
42     <!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
43 swift 1.6 <license/>
44    
45 nightmorph 1.59 <version>1.25</version>
46     <date>2010-04-17</date>
47 swift 1.1
48     <chapter>
49     <title>Introduction</title>
50     <section>
51     <body>
52    
53     <p>
54 swift 1.53 As with everything else in Gentoo Linux, the philosophy of the Gentoo
55     Kernel team is to give you, the user, as much freedom of choice as
56     possible. If you take a look at the output of <c>emerge -s sources</c>
57     you see a large variety of kernels to choose from. In this document,
58     I will attempt to give you a brief rundown of the goals of each of the
59 swift 1.1 patch sets, which we at Gentoo design, and also explain the other kernel
60     sources we make available to you.
61     </p>
62    
63 nightmorph 1.45 <p>
64 nightmorph 1.47 Linux 2.4 is maintained by Willy Tarreau. Linus Torvalds, the original creator
65     of Linux, handed maintainership of the Linux 2.4 branch over to Marcelo Tosatti
66     when Linus went off to start developing the newer 2.6 kernel tree. Marcelo did a
67     fine job of keeping 2.4 stable and secure, and has since handed over
68     maintainership to Willy. Note that only security and bug fixes are accepted into
69     the 2.4 kernel tree. Actual development happens in the Linux 2.6 kernel tree.
70 nightmorph 1.46 </p>
71    
72     <p>
73     Linux 2.6 is maintained by Andrew Morton, who works closely with Linus
74     Torvalds to deliver a fast, powerful, and feature-packed Linux kernel.
75     Development is happening at incredible pace and this kernel tree is now very
76     mature.
77     </p>
78    
79     <p>
80 nightmorph 1.45 Some of the more uncommon system architectures are not fully compatible with
81     Linux 2.6, and some users prefer the tried-and-tested Linux 2.4 kernel. However,
82     please note that Linux 2.4 is currently not being developed further - only bug
83     and security fixes are being included in the newer releases. If you are able to,
84     we suggest that you upgrade to Linux 2.6. You may find the <uri
85     link="/doc/en/migration-to-2.6.xml">migration document</uri> useful.
86     </p>
87    
88 swift 1.1 </body>
89     </section>
90     </chapter>
91    
92     <chapter>
93 swift 1.17 <title>Supported kernel packages</title>
94 swift 1.1 <section>
95 bennyc 1.9 <title>genkernel</title>
96     <body>
97    
98     <p>
99     <c>Genkernel</c> is a kernel toolset that can be used to autodetect your
100     hardware and configure your kernel automatically. This is usually recommended
101     for users who do not feel comfortable about compiling a kernel manually.
102     </p>
103    
104 cam 1.11 <p>
105     For more information, please read the <uri link="/doc/en/genkernel.xml">Gentoo
106     Linux Genkernel Guide</uri>.
107     </p>
108    
109 bennyc 1.9 </body>
110     </section>
111     <section>
112 swift 1.26 <title>General purpose: gentoo-sources</title>
113 swift 1.1 <body>
114    
115     <p>
116 nightmorph 1.54 For most users, we recommend the <c>gentoo-sources</c> kernel.
117 nightmorph 1.45 <c>gentoo-sources</c> is a kernel based on Linux 2.6, lightly patched to fix
118     security problems, kernel bugs, and to increase compatibility with the more
119 nightmorph 1.54 uncommon system architectures.
120 swift 1.24 </p>
121    
122     <p>
123     The <c>gentoo-sources</c> package absorbs most of the resources of the Gentoo
124     kernel team. They are brought to you by a group of talented developers, which
125     can count on the expertise of popular kernel hacker Greg Kroah-Hartman,
126     maintainer of udev and responsible for the USB and PCI subsystems of the
127     official Linux kernel.
128 swift 1.1 </p>
129    
130     </body>
131     </section>
132     <section>
133 nightmorph 1.56 <title>For servers: hardened-sources</title>
134 swift 1.1 <body>
135    
136     <p>
137 nightmorph 1.54 <c>hardened-sources</c> is based on the official Linux kernel and is targeted at
138     our users running Gentoo on server systems. It provides patches for the various
139     subprojects of Gentoo Hardened (such as support for <uri
140     link="http://www.nsa.gov/selinux/">LSM/SELinux</uri> and <uri
141     link="http://grsecurity.net">grsecurity</uri>), together with
142     stability/security-enhancements. Check
143     <uri>http://www.gentoo.org/proj/en/hardened/</uri> for more information.
144 swift 1.17 </p>
145    
146 neysx 1.29 <impo>
147 nightmorph 1.56 This kernel provides powerful patches for enhanced security. Please read the
148     <uri link="/proj/en/hardened/">documentation</uri> before you use it.
149 neysx 1.29 </impo>
150 swift 1.1
151     </body>
152     </section>
153     <section>
154     <title>Architecture dependent kernels</title>
155     <body>
156    
157     <p>
158 nightmorph 1.57 <c>cell-sources</c>, <c>mips-sources</c>, <c>sparc-sources</c>, and
159     <c>xbox-sources</c> are, as their names suggest, patched to run best on specific
160     architectures. They also contain some of the patches for hardware and features
161     support from the other patch sets mentioned above and below.
162 swift 1.1 </p>
163    
164     </body>
165     </section>
166     </chapter>
167    
168     <chapter>
169 swift 1.17 <title>Unsupported kernel packages</title>
170 swift 1.1 <section>
171     <body>
172    
173     <p>
174 swift 1.53 Now I'm going to try to briefly describe some of the other
175     <path>sys-kernel/*-sources</path> which you saw scroll by when you ran
176 swift 1.17 <c>emerge -s sources</c>. Lets take them in alphabetical order. These
177     kernels are provided as a courtesy only and the various patch sets are not
178 swift 1.19 supported by the Gentoo team.
179 swift 1.1 </p>
180    
181     </body>
182     </section>
183     <section>
184 jkt 1.36 <title>git-sources</title>
185     <body>
186    
187     <p>
188     The <c>git-sources</c> package tracks daily snapshots of the upstream
189     development kernel tree. You should run these kernels if you are interested in
190     kernel development or testing. Bugreports should go to the <uri
191 neysx 1.55 link="http://bugzilla.kernel.org/">Linux Kernel Bug Tracker</uri> or LKML
192     (Linux Kernel Mailing List).
193 jkt 1.36 </p>
194    
195     </body>
196     </section>
197     <section>
198 swift 1.1 <title>mm-sources</title>
199     <body>
200    
201     <p>
202 neysx 1.29 The <c>mm-sources</c> are based on the <c>vanilla-sources</c> and contain
203 neysx 1.10 Andrew Morton's patch set. They include the experimental and bleeding-edge
204     features that are going to be included in the official kernel (or that are
205     going to be rejected because they set your box on fire). They are known to be
206     always moving at a fast pace and can change radically from one week to the
207     other; kernel hackers use them as a testing ground for new stuff.
208 swift 1.1 </p>
209    
210     <p>
211 swift 1.17 If you really want to live on the edge and you think
212 neysx 1.29 <c>vanilla-sources</c> are for wussies, then try out
213 swift 1.17 <c>mm-sources</c>. Be warned that this kernel is highly experimental and
214     doesn't always work as expected.
215 swift 1.1 </p>
216    
217     </body>
218     </section>
219     <section>
220 fox2mike 1.35 <title>openvz-sources</title>
221     <body>
222    
223     <p>
224 flammie 1.39 OpenVZ is a server virtualization solution built on Linux. OpenVZ creates
225 fox2mike 1.35 isolated, secure virtual private servers (VPSs) or virtual environments on a
226     single physical server enabling better server utilization and ensuring that
227     applications do not conflict. For more information, see
228 flammie 1.39 <uri>http://www.openvz.org</uri>.
229 fox2mike 1.35 </p>
230    
231     </body>
232     </section>
233     <section>
234 swift 1.51 <title>tuxonice-sources</title>
235 swift 1.1 <body>
236    
237     <p>
238 swift 1.52 The <c>tuxonice-sources</c> (formerly <c>suspend2-sources</c>) are patched with
239     both genpatches which includes the patches found in gentoo-sources, and <uri
240 swift 1.53 link="http://www.tuxonice.net">TuxOnIce</uri> which is an improved
241     implementation of suspend-to-disk for the Linux kernel, formerly known as
242 swift 1.52 <e>suspend2</e>.
243 swift 1.1 </p>
244    
245     <p>
246 fox2mike 1.35 This kernel is recommended for laptop users who often rely on being able
247     to suspend their laptop and resume work elsewhere.
248 swift 1.1 </p>
249    
250     </body>
251     </section>
252     <section>
253 fox2mike 1.35 <title>usermode-sources</title>
254 swift 1.33 <body>
255    
256     <p>
257 swift 1.53 <c>usermode-sources</c> are the User Mode Linux kernel patches. This
258 fox2mike 1.35 kernel is designed to allow Linux to run within Linux to run within Linux
259     to ... User Mode Linux is intended for testing and virtual server support.
260 swift 1.53 For more information about this amazing tribute to the stability and
261     scalability of Linux, see <uri>http://user-mode-linux.sourceforge.net</uri>.
262 swift 1.33 </p>
263    
264     <p>
265 swift 1.53 For more information on UML and Gentoo, read the
266 fox2mike 1.35 <uri link="/doc/en/uml.xml">Gentoo UML Guide</uri>.
267 swift 1.33 </p>
268    
269     </body>
270     </section>
271 nightmorph 1.45 <section>
272     <title>vanilla-sources</title>
273     <body>
274    
275     <p>
276     The next kernel sources that many of you will probably be familiar with as Linux
277     users are the <c>vanilla-sources</c>. These are the official kernel sources
278     released on <uri>http://www.kernel.org/</uri>. Please note that we do not patch
279     these kernels at all - these are purely for people who wish to run a completely
280     unmodified Linux kernel. We recommend that you use <c>gentoo-sources</c>
281     instead.
282     </p>
283    
284     <p>
285 nightmorph 1.54 Two versions of the kernel can be found under this package: 2.4 and 2.6.
286 nightmorph 1.45 </p>
287    
288     </body>
289     </section>
290 nightmorph 1.58 <section>
291     <title>zen-sources</title>
292     <body>
293    
294     <p>
295     <c>zen-sources</c> is designed for desktop systems. It includes code not found
296     in the mainline kernel. The zen kernel has patches that add new features,
297     support additional hardware, and contain various tweaks for desktops.
298     </p>
299    
300     </body>
301     </section>
302 nightmorph 1.59 <section>
303     <title>ck-sources</title>
304     <body>
305    
306     <p>
307     <c>ck-sources</c> is Con Kolivas's kernel patch set. This patchset is primarily
308     designed to improve system responsiveness and interactivity and is configurable
309     for varying workloads (from servers to desktops). The patchset includes a
310     different scheduler, BFS, designed to keep systems responsive and smooth even
311     when under heavy load. Support and information is available at
312     <uri>http://kernel.kolivas.org</uri> and in <c>#ck</c> on <c>irc.oftc.net</c>.
313     </p>
314    
315     </body>
316     </section>
317 swift 1.1 </chapter>
318 swift 1.17
319     <chapter>
320     <title>Previously provided kernel packages</title>
321     <section>
322 swift 1.20 <title>aa-sources</title>
323     <body>
324    
325     <p>
326     <c>aa-sources</c> was a heavily modified kernel with all kinds of patches.
327     The upstream maintainer has stopped releasing kernel patchsets, this package
328     was removed as it went out of date.
329     </p>
330    
331     </body>
332     </section>
333     <section>
334     <title>alpha-sources</title>
335     <body>
336    
337     <p>
338     <c>alpha-sources</c> was a 2.4 kernel with patches applied to improve hardware
339     compatibility for the Alpha architecture. These patches have been developed
340     and included in the mainline kernel. Alpha users can now run any recent kernel
341     with no need for extra patches.
342     </p>
343    
344     </body>
345     </section>
346     <section>
347 swift 1.24 <title>development-sources</title>
348     <body>
349    
350     <p>
351     <c>development-sources</c>, the official 2.6 kernel from kernel.org, can now
352     be found under the <c>vanilla-sources</c> package.
353     </p>
354    
355     </body>
356     </section>
357     <section>
358 alin 1.28 <title>gentoo-dev-sources</title>
359 swift 1.24 <body>
360    
361     <p>
362 alin 1.28 <c>gentoo-dev-sources</c>, a 2.6 kernel patched with bug, security and
363 swift 1.24 stability fixes, can now be found under the <c>gentoo-sources</c> package.
364     </p>
365    
366     </body>
367     </section>
368     <section>
369 fox2mike 1.35 <title>grsec-sources</title>
370     <body>
371    
372     <p>
373     The <c>grsec-sources</c> kernel source used to be patched with the latest
374     grsecurity updates (grsecurity version 2.0 and up) which included, amongst
375     other security-related patches, support for PaX. As grsecurity patches are
376     included in <c>hardened-sources</c>, this package is no longer in Portage.
377     </p>
378    
379     </body>
380     </section>
381     <section>
382 fox2mike 1.31 <title>hardened-dev-sources</title>
383     <body>
384    
385     <p>
386     <c>hardened-dev-sources</c> can now be found under the <c>hardened-sources</c>
387     package.
388     </p>
389    
390     </body>
391     </section>
392     <section>
393 nightmorph 1.56 <title>hppa-sources</title>
394     <body>
395    
396     <p>
397     <c>hppa-sources</c> was a 2.6 kernel with patches applied to improve hardware
398     compatibility for the HPPA architecture. These patches have been developed
399     and included in the mainline kernel. HPPA users can now run any recent kernel
400     with no need for extra patches.
401     </p>
402    
403     </body>
404     </section>
405     <section>
406 swift 1.24 <title>rsbac-dev-sources</title>
407     <body>
408    
409     <p>
410     The <c>rsbac-dev-sources</c> kernels can now be found under the
411     <c>rsbac-sources</c> package.
412     </p>
413    
414     </body>
415     </section>
416     <section>
417 nightmorph 1.56 <title>rsbac-sources</title>
418     <body>
419    
420     <p>
421     <c>rsbac-sources</c> was a 2.6-based kernel. It contained patches to use Rule
422     Set Based Access Controls (<uri link="http://www.rsbac.org">RSBAC</uri>). It has
423     been removed due to lack of maintainers. Use <c>hardened-sources</c> if you need
424     additional security features.
425     </p>
426    
427     </body>
428     </section>
429     <section>
430 swift 1.20 <title>selinux-sources</title>
431     <body>
432    
433     <p>
434     <c>selinux-sources</c>, a 2.4 kernel including lots of security enhancements,
435 fox2mike 1.32 has been obsoleted by security development in the 2.6 tree. SELinux
436 fox2mike 1.31 functionality can be found in the <c>hardened-sources</c> package.
437 swift 1.18 </p>
438    
439     </body>
440     </section>
441 fox2mike 1.35 <section>
442 nightmorph 1.57 <title>sh-sources</title>
443     <body>
444    
445     <p>
446     <c>sh-sources</c> was a 2.6 kernel with patches applied to improve hardware
447     compatibility for the SuperH architecture. These patches have been developed
448     and included in the mainline kernel. SuperH users can now run any recent kernel
449     with no need for extra patches.
450     </p>
451    
452     </body>
453     </section>
454     <section>
455 fox2mike 1.40 <title>uclinux-sources</title>
456     <body>
457    
458     <p>
459     The <c>uclinux-sources</c> are meant for CPUs without MMUs as well as embedded
460     devices. For more information, see <uri>http://www.uclinux.org</uri>. Lack of
461 swift 1.53 security patches as well as hardware to test on were the reasons this is no
462     longer in the tree.
463 fox2mike 1.40 </p>
464    
465     </body>
466     </section>
467     <section>
468 fox2mike 1.35 <title>win4lin-sources</title>
469     <body>
470    
471     <p>
472 swift 1.53 <c>win4lin-sources</c> were patched to support the userland win4lin tools
473 fox2mike 1.35 that allow Linux users to run many Microsoft Windows (TM) applications
474     at almost native speeds. This was removed due to security issues.
475     </p>
476    
477     </body>
478     </section>
479 swift 1.17 </chapter>
480 swift 1.1 </guide>

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