[gentoo-user] Anyone can afford information about build kernel?

[gentoo-user] Anyone can afford information about build kernel?

[Lavender]

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It seems that no matter I build gentoo manually or with genkernel I can't have a fine-working kernel finally. Obviously I must solve it by myself , so I determined to build entire kernel all manually , it requests a lot of linux knowlege . All for that, I hope someone could tell me where to get this information , I haven't found them on gentoo.org , so please lead me to the correct direction, thank you for you all !

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Re: [gentoo-user] Anyone can afford information about build kernel?

[Nick Khamis]

cd /usr/src/linux
make menuconfig "select the list of modules/drivers you need for your box"
make modules_install
cp arch/i386/boot/bzImage /boot/kernel-2.6.3.<whatever you want to call it>
vi /boot/grub/grub.conf "nano if you have not used vi before"

<part of grub.conf>
title Gentoo Linux 2.6.36-r1
root (hd0,0)
kernel /boot/kernel-2.6.36-native-r3 root=/dev/sda3

reboot

If this is a fresh install, make mistakes, break your environment,
chroot into jail...This
is the only cure for your condition.

Nick.


On Sat, Oct 8, 2011 at 8:55 PM, Lavender <448463782@qq.com> wrote:
> It seems that no matter I build gentoo manually or with genkernel I can't
> have a fine-working kernel finally. Obviously I must solve it by myself , so
> I determined to build entire kernel all manually , it requests a lot of
> linux knowlege . All for that, I hope someone could tell me where to get
> this information , I haven't found them on gentoo.org , so please lead me to
> the correct direction, thank you for you all !

Re: [gentoo-user] Anyone can afford information about build kernel?

[Dale]

Nick Khamis wrote:
> cd /usr/src/linux
> make menuconfig "select the list of modules/drivers you need for your box"
> make modules_install

make && make modules_install

> cp arch/i386/boot/bzImage /boot/kernel-2.6.3.<whatever you want to call it>
> vi /boot/grub/grub.conf "nano if you have not used vi before"
>
> <part of grub.conf>
> title Gentoo Linux 2.6.36-r1
> root (hd0,0)
> kernel /boot/kernel-2.6.36-native-r3 root=/dev/sda3
>
> reboot
>
> If this is a fresh install, make mistakes, break your environment,
> chroot into jail...This
> is the only cure for your condition.
>
> Nick.
>

Dale

:-)  :-)

Re: [gentoo-user] Anyone can afford information about build kernel?

[Nilesh Govindarajan]

On 10/09/2011 06:25 AM, Lavender wrote:
> It seems that no matter I build gentoo manually or with genkernel I
> can't have a fine-working kernel finally. Obviously I must solve it by
> myself , so I determined to build entire kernel all manually , it
> requests a lot of linux knowlege . All for that, I hope someone could
> tell me where to get this information , I haven't found them on
> gentoo.org , so please lead me to the correct direction, thank you for
> you all !

If you're new to building kernel, it will take some time to learn what
modules you need what options you should enable, etc.
You're building gentoo on some host Linux os, so you can use that os's
lsmod utility to know what modules you require.

Also, if some modules may be compiled right into the kernel you may not
be able to see them in the lsmod produces, instead use lspci -v for that.

One important thing I learnt the hard way while building gentoo for a
server- Always compile the critical modules like disk controllers, RAID,
also don't forget to use RAID autodetection if you're not going to use
an initramfs and filesystems (involved at boot) statically.

While citing my experience about building gentoo on a server, you have
to do the things invisibly, so you can't see what the kernel emits befor
panic.

It turned out that I'd disabled RAID autodetection and wasn't using an
initramfs either (which will load the arrays using mdadm).

-- 
Nilesh Govindarajan
http://nileshgr.com

Re: [gentoo-user] Anyone can afford information about build kernel?

[Lavender]

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Yeah, your reply is exact what I mean , but I'm really confused by those modules' names, I can't find any contact between the hard device name and its module name . For example,  there is a module named 3c59x.ko , I totally don't know what device it present for , I mean I can't figure out that which module correspond to which device though I know the hard devices consisted of my PC. So I need information about contact between them so that I could know what modules need to be chosen in kernel ,  also the options of kernel are quiet a lot , there're many features that I  never heard , I want to find them out .
 May be you think these problems are too easy , but I have never contacted them before . Forum I visited and books about Linux I readed are both not mentioned them ,  so I wish you all could instruct me.
   ------------------ Original ------------------
  From:  "Nilesh Govindarajan"<contact@nileshgr.com>;
 Date:  Sun, Oct 9, 2011 10:09 AM
 To:  "gentoo-user"<gentoo-user@lists.gentoo.org>; 
 
 Subject:  Re: [gentoo-user] Anyone can afford information about build kernel?

  
On 10/09/2011 06:25 AM, Lavender wrote:
> It seems that no matter I build gentoo manually or with genkernel I
> can't have a fine-working kernel finally. Obviously I must solve it by
> myself , so I determined to build entire kernel all manually , it
> requests a lot of linux knowlege . All for that, I hope someone could
> tell me where to get this information , I haven't found them on
> gentoo.org , so please lead me to the correct direction, thank you for
> you all !

If you're new to building kernel, it will take some time to learn what
modules you need what options you should enable, etc.
You're building gentoo on some host Linux os, so you can use that os's
lsmod utility to know what modules you require.

Also, if some modules may be compiled right into the kernel you may not
be able to see them in the lsmod produces, instead use lspci -v for that.

One important thing I learnt the hard way while building gentoo for a
server- Always compile the critical modules like disk controllers, RAID,
also don't forget to use RAID autodetection if you're not going to use
an initramfs and filesystems (involved at boot) statically.

While citing my experience about building gentoo on a server, you have
to do the things invisibly, so you can't see what the kernel emits befor
panic.

It turned out that I'd disabled RAID autodetection and wasn't using an
initramfs either (which will load the arrays using mdadm).

-- 
Nilesh Govindarajan
http://nileshgr.com

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Re: [gentoo-user] Anyone can afford information about build kernel?

[Nilesh Govindarajan]

On Sun 09 Oct 2011 10:23:50 AM IST, Lavender wrote:
> Yeah, your reply is exact what I mean , but I'm really confused by
> those modules' names, I can't find any contact between the hard device
> name and its module name . For example,  there is a module named
> 3c59x.ko , I totally don't know what device it present for , I mean I
> can't figure out that which module correspond to which device though I
> know the hard devices consisted of my PC. So I need information about
> contact between them so that I could know what modules need to be
> chosen in kernel ,  also the options of kernel are quiet a lot ,
> there're many features that I  never heard , I want to find them out .
> May be you think these problems are too easy , but I have never
> contacted them before . Forum I visited and books about Linux I readed
> are both not mentioned them ,  so I wish you all could instruct me.

Kernel module names are usually named according to a specific naming 
scheme like <name of product manufacturer><name of model number>.ko
So here, 3c59x.ko is 3COM 59X device. 3COM ethernet cards are quite 
common.

-- 
Nilesh Govindarajan
http://nileshgr.com

Re: [gentoo-user] Anyone can afford information about build kernel?

[Volker Armin Hemmann]

Am Sonntag 09 Oktober 2011, 08:55:55 schrieb Lavender:
> It seems that no matter I build gentoo manually or with genkernel I can't
> have a fine-working kernel finally. Obviously I must solve it by myself ,
> so I determined to build entire kernel all manually , it requests a lot of
> linux knowlege . All for that, I hope someone could tell me where to get
> this information , I haven't found them on gentoo.org , so please lead me
> to the correct direction, thank you for you all !

http://www.kroah.com/lkn/

there. 

You can download it there. It helps you with building.

btw:
make -jX && make modules_install install

With make all modules_install install
or
make && make modules_install

you only have one make instance. Which is very slow.

-- 
#163933

Re: [gentoo-user] Anyone can afford information about build kernel?

[Lavender]

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Thanks a lot ! The e-book is nice ! Hmm, <Linux Kernel in a Nutshell> , I haven't heard it before , would you like to recommend more books about linux kernel ? 
   
  ------------------ Original ------------------
  From:  "Volker Armin Hemmann"<volkerarmin@googlemail.com>;
 Date:  Sun, Oct 9, 2011 02:21 PM
 To:  "gentoo-user"<gentoo-user@lists.gentoo.org>; 
 
 Subject:  Re: [gentoo-user] Anyone can afford information about build kernel?

  
Am Sonntag 09 Oktober 2011, 08:55:55 schrieb Lavender:
> It seems that no matter I build gentoo manually or with genkernel I can't
> have a fine-working kernel finally. Obviously I must solve it by myself ,
> so I determined to build entire kernel all manually , it requests a lot of
> linux knowlege . All for that, I hope someone could tell me where to get
> this information , I haven't found them on gentoo.org , so please lead me
> to the correct direction, thank you for you all !

http://www.kroah.com/lkn/

there. 

You can download it there. It helps you with building.

btw:
make -jX && make modules_install install

With make all modules_install install
or
make && make modules_install

you only have one make instance. Which is very slow.

-- 
#163933

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Re: [gentoo-user] Anyone can afford information about build kernel?

[Michael Mol]

On Sun, Oct 9, 2011 at 12:53 AM, Lavender <448463782@qq.com> wrote:
> Yeah, your reply is exact what I mean , but I'm really confused by those
> modules' names, I can't find any contact between the hard device name and
> its module name . For example,  there is a module named 3c59x.ko , I totally
> don't know what device it present for ,

This got a *lot* easier back when sysfs was added.

cd /sys/module/<modulename>/drivers/

And go from there

lspci will help you see the 'text' name for the device in question.

For example, let's say I don't know what the 'ahci' module is for.

$ cd /sys/module/ahci/drivers
$ ls
pci:ahci
$ cd pci\:ahci/
$ ls
0000:00:11.0  bind  module  new_id  remove_id  uevent  unbind
$ sudo lspci|grep 11.0
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA
Controller [AHCI mode]
$

So now I know the ahci module manages my SATA controller.

> I mean I can't figure out that which
> module correspond to which device though I know the hard devices consisted
> of my PC. So I need information about contact between them so that I could
> know what modules need to be chosen in kernel ,  also the options of kernel
> are quiet a lot , there're many features that I  never heard , I want to
> find them out .
> May be you think these problems are too easy , but I have never contacted
> them before .

Pretty sure we've all been there before. It helps to have some
foreknowledge about hardware standards and the like, but it's not
strictly necessary. As long as you're interested in *how* to find
information, and use that knowledge once you find it, I don't doubt
people will be interested in helping.

-- 
:wq

Re: [gentoo-user] Anyone can afford information about build kernel?

[Michael Mol]

On Sun, Oct 9, 2011 at 9:30 AM, Michael Mol <mikemol@gmail.com> wrote:
> On Sun, Oct 9, 2011 at 12:53 AM, Lavender <448463782@qq.com> wrote:
>> Yeah, your reply is exact what I mean , but I'm really confused by those
>> modules' names, I can't find any contact between the hard device name and
>> its module name . For example,  there is a module named 3c59x.ko , I totally
>> don't know what device it present for ,
>
> This got a *lot* easier back when sysfs was added.
>
> cd /sys/module/<modulename>/drivers/
>
> And go from there
>
> lspci will help you see the 'text' name for the device in question.
>
> For example, let's say I don't know what the 'ahci' module is for.
>
> $ cd /sys/module/ahci/drivers
> $ ls
> pci:ahci
> $ cd pci\:ahci/
> $ ls
> 0000:00:11.0  bind  module  new_id  remove_id  uevent  unbind
> $ sudo lspci|grep 11.0
> 00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA
> Controller [AHCI mode]
> $
>
> So now I know the ahci module manages my SATA controller.

Came up with something possibly a little handier. This command should
tell you what driver is associated with every device on the system.

find /sys/devices -name driver -print0|xargs -0 ls -l|cut -d' '
-f10-|sed -e 's/\.\.\///g'

Output could probably still be a bit better cleaned up, but it should help.

-- 
:wq

Re: [gentoo-user] Anyone can afford information about build kernel?

[Dale]

Volker Armin Hemmann wrote:
> Am Sonntag 09 Oktober 2011, 08:55:55 schrieb Lavender:
>> It seems that no matter I build gentoo manually or with genkernel I can't
>> have a fine-working kernel finally. Obviously I must solve it by myself ,
>> so I determined to build entire kernel all manually , it requests a lot of
>> linux knowlege . All for that, I hope someone could tell me where to get
>> this information , I haven't found them on gentoo.org , so please lead me
>> to the correct direction, thank you for you all !
> http://www.kroah.com/lkn/
>
> there.
>
> You can download it there. It helps you with building.
>
> btw:
> make -jX&&  make modules_install install
>
> With make all modules_install install
> or
> make&&  make modules_install
>
> you only have one make instance. Which is very slow.
>

I get 404 errors on the links on the page.  Is there some secret to 
getting them?

Dale

:-)  :-)

Re: [gentoo-user] Anyone can afford information about build kernel?

[Dale]

Michael Mol wrote:
> On Sun, Oct 9, 2011 at 9:30 AM, Michael Mol<mikemol@gmail.com>  wrote:
>> On Sun, Oct 9, 2011 at 12:53 AM, Lavender<448463782@qq.com>  wrote:
>>> Yeah, your reply is exact what I mean , but I'm really confused by those
>>> modules' names, I can't find any contact between the hard device name and
>>> its module name . For example,  there is a module named 3c59x.ko , I totally
>>> don't know what device it present for ,
>> This got a *lot* easier back when sysfs was added.
>>
>> cd /sys/module/<modulename>/drivers/
>>
>> And go from there
>>
>> lspci will help you see the 'text' name for the device in question.
>>
>> For example, let's say I don't know what the 'ahci' module is for.
>>
>> $ cd /sys/module/ahci/drivers
>> $ ls
>> pci:ahci
>> $ cd pci\:ahci/
>> $ ls
>> 0000:00:11.0  bind  module  new_id  remove_id  uevent  unbind
>> $ sudo lspci|grep 11.0
>> 00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA
>> Controller [AHCI mode]
>> $
>>
>> So now I know the ahci module manages my SATA controller.
> Came up with something possibly a little handier. This command should
> tell you what driver is associated with every device on the system.
>
> find /sys/devices -name driver -print0|xargs -0 ls -l|cut -d' '
> -f10-|sed -e 's/\.\.\///g'
>
> Output could probably still be a bit better cleaned up, but it should help.
>

Let's not fail to mention lspci -k either.  That is a handy tool.

Dale

:-)  :-)

Re: [gentoo-user] Anyone can afford information about build kernel?

[Dale]

Michael Mol wrote:
> Came up with something possibly a little handier. This command should 
> tell you what driver is associated with every device on the system. 
> find /sys/devices -name driver -print0|xargs -0 ls -l|cut -d' ' 
> -f10-|sed -e 's/\.\.\///g' Output could probably still be a bit better 
> cleaned up, but it should help. 

Hmmmmmm:

root@fireball / # find /sys/devices -name driver -print0|xargs -0 ls 
-l|cut -d' '-f10-|sed -e 's/\.\.\///g'
cut: the delimiter must be a single character
Try `cut --help' for more information.
xargs: ls: terminated by signal 13
root@fireball / #

Dale

:-)  :-)

Re: [gentoo-user] Anyone can afford information about build kernel?

[Michael Mol]

On Sun, Oct 9, 2011 at 9:59 AM, Dale <rdalek1967@gmail.com> wrote:
> Michael Mol wrote:
>
> Let's not fail to mention lspci -k either.  That is a handy tool.

Heh. Now if only I'd known...

-- 
:wq

Re: [gentoo-user] Anyone can afford information about build kernel?

[meino.cramer]

Lavender <448463782@qq.com> [11-10-09 03:07]:
> It seems that no matter I build gentoo manually or with genkernel I can't have a fine-working kernel finally. Obviously I must solve it by myself , so I determined to build entire kernel all manually , it requests a lot of linux knowlege . All for that, I hope someone could tell me where to get this information , I haven't found them on gentoo.org , so please lead me to the correct direction, thank you for you all !

Hi,

when I am setup a new system for example after changing the
motherboard and CPU for some reason, I normally boot into
a live sysrtem like ubuntoo or such, check whether the most
things are running and do a lsmod. Then I mount the tmp dir rw 
of my hd, which is on a separate filesystem, and paste all
valuable info on that like the output of lsmod, lsusb and such.

Then I use this infos for setting up a new kernel.

Only ashot in the dark...

HTH!
Best regards,
mcc

Re: [gentoo-user] Anyone can afford information about build kernel?

[Michael Mol]

On Sun, Oct 9, 2011 at 10:02 AM, Dale <rdalek1967@gmail.com> wrote:
> Michael Mol wrote:
>>
>> Came up with something possibly a little handier. This command should tell
>> you what driver is associated with every device on the system. find
>> /sys/devices -name driver -print0|xargs -0 ls -l|cut -d' ' -f10-|sed -e
>> 's/\.\.\///g' Output could probably still be a bit better cleaned up, but it
>> should help.
>
> Hmmmmmm:
>
> root@fireball / # find /sys/devices -name driver -print0|xargs -0 ls -l|cut
> -d' '-f10-|sed -e 's/\.\.\///g'
> cut: the delimiter must be a single character
> Try `cut --help' for more information.
> xargs: ls: terminated by signal 13
> root@fireball / #

Your -f got stuck attached to the -d argument.

Wordwrap reconstruction fail. :-|

Try this for an alternate representation:

find /sys/devices -name driver \
  -print0|xargs -0 ls -l|cut -d' ' \
  -f10-|sed -e 's/\.\.\///g'
-- 
:wq

Re: [gentoo-user] Anyone can afford information about build kernel?

[Dale]

Michael Mol wrote:
> find /sys/devices -name driver \
>    -print0|xargs -0 ls -l|cut -d' ' \
>    -f10-|sed -e 's/\.\.\///g'

That worked better.  I did have to copy it from the email to kwrite, 
because of the word wrapping, then to a Konsole.  It would be nice if we 
could disable that in plain text emails sometimes.  Word wrapping that is.

I was really looking forward to the book thing too.  Bummer.  Life's a 
biscuit then you get burned in the oven.  lol

Dale

:-)  :-)

Re: [gentoo-user] Anyone can afford information about build kernel?

[Volker Armin Hemmann]

Am Sonntag 09 Oktober 2011, 17:49:25 schrieb Lavender:
> Thanks a lot ! The e-book is nice ! Hmm, <Linux Kernel in a Nutshell> , I
> haven't heard it before , would you like to recommend more books about
> linux kernel ? 

no, I don't know any other book (well.. one - linux/unix Kurzreferenz - all 
the commands, comaprism of shells, plus how to get out of vi(m) without going 
insanse, awk etc pp.. in one nice book).

 
>   ------------------ Original ------------------
>   From:  "Volker Armin Hemmann"<volkerarmin@googlemail.com>;
>  Date:  Sun, Oct 9, 2011 02:21 PM
>  To:  "gentoo-user"<gentoo-user@lists.gentoo.org>; 
>  
>  Subject:  Re: [gentoo-user] Anyone can afford information about build
> kernel?
 
>   
> Am Sonntag 09 Oktober 2011, 08:55:55 schrieb Lavender:
> 
> > It seems that no matter I build gentoo manually or with genkernel I
> > can't
 have a fine-working kernel finally. Obviously I must solve it by
> > myself , so I determined to build entire kernel all manually , it
> > requests a lot of linux knowlege . All for that, I hope someone could
> > tell me where to get this information , I haven't found them on
> > gentoo.org , so please lead me to the correct direction, thank you for
> > you all !
> 
> 
> http://www.kroah.com/lkn/
> 
> there. 
> 
> You can download it there. It helps you with building.
> 
> btw:
> make -jX && make modules_install install
> 
> With make all modules_install install
> or
> make && make modules_install
> 
> you only have one make instance. Which is very slow.
> 
> -- 
> #163933
-- 
#163933

Re: [gentoo-user] Anyone can afford information about build kernel?

[Spidey]

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I ended up learning how to build my own kernel with Google, basically. I've
learned about timers (HPET), chipset, sata controllers, the sata/pata
drivers in linux, sound architecture (alsa/oss/pulseaudio), debugging file
systems and messages, about the serial terminal (stty0), about kexec, DRM +
KMS...

Just read the HELP pages (I use make menuconfig for configuration, but
xconfig and gconfig should give you the help pages too) and when in doubt
set the default option.

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Re: [gentoo-user] Anyone can afford information about build kernel?

[Neil Bothwick]

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On Mon, 10 Oct 2011 05:26:45 -0300, Spidey wrote:

> Just read the HELP pages (I use make menuconfig for configuration, but
> xconfig and gconfig should give you the help pages too) and when in
> doubt set the default option.

The search function is useful too, press / in menuconfig.


-- 
Neil Bothwick

Documentation: (n.) a novel sold with software, designed to entertain the
               operator during episodes of bugs or glitches.

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