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jebba
PostPosted: Mon Mar 24, 2008 11:42 pm    Post subject: Linux Libre Reply with quote

(Note this post was made in other places on February 20th, 2008, I'm just putting it here for completeness...)


The official "vanilla" Linux kernel from Linus that gets distributed on kernel.org has non-free[1] software in it. Here is one example from linux-2.6.24/drivers/net/tg3.c:

Code:

/*
  * tg3.c: Broadcom Tigon3 ethernet driver.
  *
  * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
  * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
  * Copyright (C) 2004 Sun Microsystems Inc.
  * Copyright (C) 2005-2007 Broadcom Corporation.
  *
  * Firmware is:
  *      Derived from proprietary unpublished source code,
  *      Copyright (C) 2000-2003 Broadcom Corporation.
  *
  *      Permission is hereby granted for the distribution of this firmware
  *      data in hexadecimal or equivalent format, provided this copyright
  *      notice is accompanying it.
  */


It then has screenfulls of non-free code like this:

0x0e000003, 0x00000000, 0x08001b24, 0x00000000, 0x10000003, 0x00000000,
0x0000000d, 0x0000000d, 0x3c1d0800, 0x37bd4000, 0x03a0f021, 0x3c100800,
0x26100000, 0x0e000010, 0x00000000, 0x0000000d, 0x27bdffe0, 0x3c04fefe,
0xafbf0018, 0x0e0005d8, 0x34840002, 0x0e000668, 0x00000000, 0x3c030800,
0x90631b68, 0x24020002, 0x3c040800, 0x24841aac, 0x14620003, 0x24050001,
0x3c040800, 0x24841aa0, 0x24060006, 0x00003821, 0xafa00010, 0x0e00067c,
0xafa00014, 0x8f625c50, 0x34420001, 0xaf625c50, 0x8f625c90, 0x34420001,
0xaf625c90, 0x2402ffff, 0x0e000034, 0xaf625404, 0x8fbf0018, 0x03e00008,
0x27bd0020, 0x00000000, 0x00000000, 0x00000000, 0x27bdffe0, 0xafbf001c,
0xafb20018, 0xafb10014, 0x0e00005b, 0xafb00010, 0x24120002, 0x24110001,
0x8f706820, 0x32020100, 0x10400003, 0x00000000, 0x0e0000bb, 0x00000000,
0x8f706820, 0x32022000, 0x10400004, 0x32020001, 0x0e0001f0, 0x24040001,
0x32020001, 0x10400003, 0x00000000, 0x0e0000a3, 0x00000000, 0x3c020800,
0x90421b98, 0x14520003, 0x00000000, 0x0e0004c0, 0x00000000, 0x0a00003c,
0xaf715028, 0x8fbf001c, 0x8fb20018, 0x8fb10014, 0x8fb00010, 0x03e00008,
0x27bd0020, 0x27bdffe0, 0x3c040800, 0x24841ac0, 0x00002821, 0x00003021,
0x00003821, 0xafbf0018, 0xafa00010, 0x0e00067c, 0xafa00014, 0x3c040800,
0x248423d8, 0xa4800000, 0x3c010800, 0xa0201b98, 0x3c010800, 0xac201b9c,
0x3c010800, 0xac201ba0, 0x3c010800, 0xac201ba4, 0x3c010800, 0xac201bac,
0x3c010800, 0xac201bb8, 0x3c010800, 0xac201bbc, 0x8f624434, 0x3c010800,
0xac221b88, 0x8f624438, 0x3c010800, 0xac221b8c, 0x8f624410, 0xac80f7a8,
0x3c010800, 0xac201b84, 0x3c010800, 0xac2023e0, 0x3c010800, 0xac2023c8,



Why Linus Torvalds tolerates and distributes this I have no idea. He surely has some rationale buried in a LKML flamewar somewhere, but it doesn't change the
fact that there is clearly non-Free code in the Linux kernel.


A little over three years ago BLAG made a commitment[2] to RMS to only distribute software that met the Free Software Definition. Since then, I have
learned about the issues with the non-Free Linux kernel (IIRC around the time gnewsense popped up). I kept punting the issue hoping it would just go away and
upstream would solve it. They haven't and the blobs remained in the kernel.

After talking to Jaromil from dynebolic, looking at the gnewsense approach (which has to remove additional non-free blobs that ubuntu adds), and debian's
approach I felt a single clean source tarball would be of benefit to everyone who wants a truly Free Linux kernel. This new cleaned kernel source has been
dubbed "linux-libre" and I am its janitor. It is available here:


ftp://ftp.blagblagblag.org/pub/BLAG/linux/kernel/v2.6


If you actually go there, you'll see a TESTING directory--currently that is where the tarballs are stored, but once everything is finalized they'll be in
the main directory. One issue I wanted to settle before moving things from TESTING was a version numbering system that we could live with long term. I have settled on the following approach, which is subject to change if anyone comes up with good objections: I'm adding a last digit to show the "libre" release based on the upstream kernel. Examples:

Linus version Linux Libre version
2.6.24 2.6.24.0.0 first libre release
2.6.24 2.6.24.0.1 second libre release
2.6.24.1 2.6.24.1.0 first libre release
2.6.24.1 2.6.24.1.1 second libre release
2.6.24.2 2.6.24.2.5 sixth libre release

So the latest linux-libre release is 2.6.24.2.1--my second spin based on upstream's 2.6.24.2. In sum, the last digit is mine, the previous digits match
upstream.

The `deblob` script used to clean the kernel is in the scripts/ directory of the tarball and can be used to clean other kernels.


Now that there is a nice tarball to use as a base, BLAG will be building it's own kernels based upon that and not distributing any Fedora kernels. We have
unreleased ISOs spun that are using this new kernel and kernel RPMs are hitting the repository. "Real-soon-now" we'll have new BLAG releases.


All for now,

-Jeff

[1] http://www.fsf.org/licensing/essays/free-sw.html
[2] http://forums.blagblagblag.org/viewtopic.php?t=571

BLAG forum thread on linux-libre:
http://forums.blagblagblag.org/viewtopic.php?t=4580

See also:
http://wiki.debian.org/KernelFirmwareLicensing
svn://svn.debian.org/kernel/dists/trunk/linux-2.6/debian/patches/debian/dfsg/files-1
http://svn.gnewsense.svnhopper.net/gnewsense/builder/trunk/firmware/firmware-removed


The initial list of removed drivers (additions/corrections most welcome):
Code:
########################
# Removed char Drivers #
########################
COMPUTONE - Computone IntelliPort Plus serial
ATARI_DSP56K - DSP56001 Device Driver
DRM_MGA - Matrox g200/g400
DRM_R128 - ATI Rage 128
DRM_RADEON - ATI Radeon
#########################
# Removed Media Drivers #
#########################
DVB_TDA10021 - Philips TDA10021 based
DVB_TDA8083 - Philips TDA8083 based
DVB_VES1820 - VLSI VES1820 based
DVB_VES1X93 - VLSI VES1893 or VES1993 based
DVB_AV7110 - AV7110 cards
DVB_BUDGET_AV - Budget cards with analog video inputs
DVB_BUDGET_CI - Budget cards with onboard CI connector
DVB_TTUSB_BUDGET - Technotrend/Hauppauge Nova-USB devices
USB_PWC - USB Philips Cameras
VIDEO_CPIA - CPiA Video For Linux
USB_DABUSB - DABUSB driver
USB_SN9C102 - USB SN9C1xx PC Camera Controller support
USB_IBMCAM - USB IBM (Xirlink) C-it Camera support
USB_VICAM - USB 3com HomeConnect (aka vicam)
#######################
# Removed net Drivers #
#######################
ACENIC - Alteon AceNIC/3Com 3C985/NetGear GA620 Gigabit
ADAPTEC_STARFIRE - Adaptec Starfire/DuraLAN support
BNX2 - Broadcom NetXtremeII
CASSINI - Sun Cassini
E100 - Intel(R) PRO/100+
MYRI_SBUS - MyriCOM Gigabit Ethernet
TEHUTI - Tehuti Networks 10G Ethernet
TIGON3 - Broadcom Tigon3
TYPHOON - 3cr990 series Typhoon
COPS - COPS LocalTalk PC
YAM - YAM driver for AX.25
PCMCIA_SMC91C92 - SMC 91Cxx PCMCIA
3C359 - 3Com 3C359 Token Link Velocity XL adapter
SMCTR - SMC ISA/MCA adapter
USB_KAWETH - USB KLSI KL5USB101-based ethernet device support
########################
# Removed s390 Drivers #
########################
QETH - Gigabit Ethernet device support
########################
# Removed SCSI Drivers #
########################
SCSI_QLOGICPTI - PTI Qlogic, ISP Driver
SCSI_ADVANSYS - AdvanSys SCSI
SCSI_QLOGIC_1280 - Qlogic QLA 1240/1x80/1x160 SCSI
#######################
# Removed USB Drivers #
#######################
USB_EMI26 - EMI 2|6 USB Audio interface
USB_EMI62 - EMI 6|2m USB Audio interface
USB_SISUSBVGA - USB 2.0 SVGA dongle support (Net2280/SiS315)
USB_SERIAL_KEYSPAN_MPR - USB Keyspan MPR Firmware
USB_SERIAL_KEYSPAN_USA18X - USB Keyspan USA-18X Firmware
USB_SERIAL_KEYSPAN_USA19 - USB Keyspan USA-19 Firmware
USB_SERIAL_KEYSPAN_USA19QI - USB Keyspan USA-19QI Firmware
USB_SERIAL_KEYSPAN_USA19QW - USB Keyspan USA-19QW Firmware
USB_SERIAL_KEYSPAN_USA19W - USB Keyspan USA-19W Firmware
USB_SERIAL_KEYSPAN_USA28 - USB Keyspan USA-28 Firmware
USB_SERIAL_KEYSPAN_USA28XA - USB Keyspan USA-28XA Firmware
USB_SERIAL_KEYSPAN_USA28XB - USB Keyspan USA-28XB Firmware
USB_SERIAL_KEYSPAN_USA28X - USB Keyspan USA-28X Firmware
USB_SERIAL_KEYSPAN_USA49W - USB Keyspan USA-49W Firmware
USB_SERIAL_KEYSPAN_USA49WLC - USB Keyspan USA-49WLC Firmware
USB_SERIAL_EDGEPORT - USB Inside Out Edgeport Serial Driver
USB_SERIAL_EDGEPORT_TI - USB Inside Out Edgeport Serial Driver (TI devices)
USB_SERIAL_TI - USB TI 3410/5052 Serial Driver
USB_SERIAL_WHITEHEAT - USB ConnectTech WhiteHEAT Serial Driver
#########################
# Removed video Drivers #
#########################
FB_ASILIANT - Asiliant (Chips) 69000 display support
FB_CT65550 - Chips 65550 display support
#########################
# Removed Sound Drivers #
#########################
SND_CS46XX - Cirrus Logic (Sound Fusion)
SND_KORG1212 - Korg 1212 IO
SND_MAESTRO3 - ESS Allegro/Maestro3
SND_YMFPCI - Yamaha YMF724/740/744/754

noldrin
PostPosted: Wed Mar 26, 2008 8:48 pm    Post subject: Reply with quote

wow, that is a lot worse than I imagined. Especially the copyright message. Without that, at least someone could try to decompile, reverse engineer stuff. I'm disappointed in seeing that.

Hopefully we'll start seeing the FSF take a more active role in repackaged "free" software as truly free.

Jason
PostPosted: Thu Mar 27, 2008 1:33 pm    Post subject: Reply with quote

Good to see us going down this route. The hypocrisy at times is staggering and I am glad BLAG remains pure.
jebba
PostPosted: Sat Mar 29, 2008 10:15 pm    Post subject: Reply with quote

Alexandre Oliva, who is a "Red Hat Compiler Engineer" and a "Free Software Evangelist", contacted me about linux-libre and expressed interest about getting a Free kernel into Fedora. Today I came across a long thread about this issue which has been going on this week on fedora-devel. Here is the thread archive:

http://thread.gmane.org/gmane.linux.redhat.fedora.devel/80093

I rarely post to fedora-devel, but added info to the thread here:
http://thread.gmane.org/gmane.linux.redhat.fedora.devel/80093/focus=80998

Good luck Alexandre! :)

-Jeff

jebba
PostPosted: Sat Mar 29, 2008 11:30 pm    Post subject: Reply with quote

And now a threadlet in blag-devel:

http://lists.blagblagblag.org/thread/20080329.232821.bd48341a.en.html

jebba
PostPosted: Tue Jul 15, 2008 1:35 am    Post subject: Reply with quote

I update this thread that Alexandre Oliva has been maintaining this kernel (to my great relief) at the FSF Latin America:

http://fsfla.org/svn/fsfla/software/linux-libre/README

BLAG kernel releases for the last couple months have included his package (built on the blag servers).

caramel1982
PostPosted: Tue May 19, 2009 5:38 am    Post subject: Reply with quote

Thanks for this thread. It is very informational. Good quality.

May I know what is the current version that you are releasing now?

Simulation pret immobilier

extraspecialbitter
PostPosted: Tue May 19, 2009 12:40 pm    Post subject: Reply with quote

caramel1982 wrote:
Thanks for this thread. It is very informational. Good quality.

May I know what is the current version that you are releasing now?

Simulation pret immobilier


Users have been testing kernel-libre-2.6.27.23-78.2.50.fc9.i686 as the Release Candidate for BLAG 90002. It can be obtained at http://www.fsfla.org/download/linux-libre/freed-ora/F-9/i686/kernel-libre-2.6.27.23-78.2.50.fc9.i686.rpm. You'll probably also want to grab the corresponding firmware at http://www.fsfla.org/download/linux-libre/freed-ora/F-9/noarch/kernel-libre-firmware-2.6.27.23-78.2.50.fc9.noarch.rpm.

viki78
PostPosted: Wed Jul 13, 2011 1:10 pm    Post subject: Reply with quote

Linux-libre is a version of the official Linux kernel with the non-free software removed?Forest City HS Class of 1975


Last edited by viki78 on Fri May 17, 2013 9:08 am; edited 1 time in total
extraspecialbitter
PostPosted: Wed Jul 13, 2011 2:41 pm    Post subject: Reply with quote

viki78 wrote:
Linux-libre is a version of the official Linux kernel with the non-free software removed?


Exactly.

shaine0909
PostPosted: Sun Jul 17, 2011 3:12 am    Post subject: Reply with quote

thanks for this thread
maxxxpower
PostPosted: Fri Sep 30, 2011 2:19 am    Post subject: Good Info. Reply with quote

I always thought the point of Linux was that it was free and that you could modify and reproduce it any way you see fit.
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