Difference between revisions of "Debian-kernel"

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__NOTOC__
  
__NOTOC__
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= Real-Time Vanilla Kernel =
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= GNU/Debian Kernel setup =
   
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== Kernel from Debian repositories ==
⚫
== Get sources and setup environment ==
  
  +
  +
=== Get the sources and setup the environment ===
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# Install the proper packages to build the kernel
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  +
<pre><nowiki>
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apt-get install ncurses-dev fakeroot kernel-package build-essential devscripts
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</nowiki></pre>
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  +
# Build kernel dependencies
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  +
<pre><nowiki>
  +
apt-get build-dep linux-2.6
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</nowiki></pre>
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# Get Debian kernel sources
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<pre><nowiki>
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apt-get source linux-2.6
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</nowiki></pre>
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* Note that `deb-src` must be present on `/etc/apt/sources.list` file
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  +
=== Build Debian Kernel ===
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# If kernel is patched, check it twice as follows
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  +
<pre><nowiki>
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make -f debian/rules source-all
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</nowiki></pre>
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* First time must fail
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* If building all kernel related packages, then do as follows. It takes almos 40GB on Hard drive.
  +
  +
<pre><nowiki>
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~/src/linux-2.6-2.6.24~rc6$ debuild -e DEBIAN_KERNEL_JOBS=${NR_CPUS}
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</nowiki></pre>
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* If building an specific architecture, then
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<pre><nowiki>
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fakeroot make -f debian/rules.gen setup_i386_none_k7
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</nowiki></pre>
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* This will build the packages for AMD K7
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* If there is any change to apply, then go the the `k7` folder and config the kernel
  +
  +
<pre><nowiki>
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debian/build/build_i386_none_k7
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make menuconfig
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</nowiki></pre>
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* Build the kernel
  +
  +
<pre><nowiki>
  +
fakeroot make -f debian/rules.gen binary-arch_i386_none_k7 binary-indep DEBIAN_KERNEL_JOBS=${NR_CPUS}
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</nowiki></pre>
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  +
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=== Install Debian Kernel ===
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Kernel packages will be created in `/usr/src` folder. Install them as any other ''deb'' package
  +
  +
<pre><nowiki>
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dpkg -i linux*.deb
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</nowiki></pre>
  +
  +
  +
== Real-Time Vanilla Kernel ==
  +
  ⚫
=== Get sources and setup environment ===
 
# Create `vanilla` folder in `/usr/src` and change directory to such location
  
# Create `vanilla` folder in `/usr/src` and change directory to such location
 
 
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−
== Build Kernel ==
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=== Build RT Kernel ===
 
# Go to the linux source folder
  
# Go to the linux source folder
 
# Configure the kernel, if necessary `make menuconfig`
  
# Configure the kernel, if necessary `make menuconfig`
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</nowiki></pre>
  
</nowiki></pre>
   
  +
  +
=== Install RT Kernel ===
 
* If only modules are needed, then use `make modules`
  
* If only modules are needed, then use `make modules`
 
* Install the modules
  
* Install the modules

Revision as of 08:10, 17 October 2010

GNU/Debian Kernel setup

Kernel from Debian repositories

Get the sources and setup the environment

  1. Install the proper packages to build the kernel
 apt-get install ncurses-dev fakeroot kernel-package build-essential devscripts
  1. Build kernel dependencies
 apt-get build-dep linux-2.6
  1. Get Debian kernel sources
 apt-get source linux-2.6
  • Note that `deb-src` must be present on `/etc/apt/sources.list` file

Build Debian Kernel

  1. If kernel is patched, check it twice as follows
 make -f debian/rules source-all
  • First time must fail
  • If building all kernel related packages, then do as follows. It takes almos 40GB on Hard drive.
 ~/src/linux-2.6-2.6.24~rc6$ debuild -e DEBIAN_KERNEL_JOBS=${NR_CPUS}
  • If building an specific architecture, then
 fakeroot make -f debian/rules.gen setup_i386_none_k7
  • This will build the packages for AMD K7
  • If there is any change to apply, then go the the `k7` folder and config the kernel
 debian/build/build_i386_none_k7
 make menuconfig
  • Build the kernel
 fakeroot make -f debian/rules.gen binary-arch_i386_none_k7 binary-indep DEBIAN_KERNEL_JOBS=${NR_CPUS}


Install Debian Kernel

Kernel packages will be created in `/usr/src` folder. Install them as any other deb package


 dpkg -i linux*.deb


Real-Time Vanilla Kernel

Get sources and setup environment

  1. Create `vanilla` folder in `/usr/src` and change directory to such location
 mkdir -p /usr/src/vanilla
 cd !$
  1. Download the latest rt patch
http://www.kernel.org/pub/linux/kernel/projects/rt/
  1. Download the matched kernel for the proper patch downloaded in previous step
http://www.kernel.org/pub/linux/kernel/v2.6/
  1. Decompress both, the linux kernel sources and the patch
 tar jxvf *.bz2
  1. Patch the kernel
 cd linux-2.6.AA.BB
 patch -p1 <../patch-2.6.AA.BB-rtNN
  1. Create a link `linux` which points to the linux kernel sources
 ln -s /usr/src/vanilla/linux-2.6.AA.BB /usr/src/linux


Build RT Kernel

  1. Go to the linux source folder
  2. Configure the kernel, if necessary `make menuconfig`
    • Backup the old config file
   cd /usr/src/linux
   cp .config config.yy-mm-dd
  • When finish save your changes
  • Build the bzImage
 cd /usr/src/linux
 make


Install RT Kernel

  • If only modules are needed, then use `make modules`
  • Install the modules
 make modules_install
  1. Install the kernel, usually locate on `arch/MY_ARCH/boot` in kernel sources
 cp arch/MY_ARCH/boot/bzImage /boot/vmlinuz-2.6.AA.BB-rtNN
  1. Create initial root filesystem
 cd /usr/src/linux
 update-inintramfs -c -k 2.6.AA-BB-rtNN
  1. Add the proper entry to grub in `/boot/grub/menu.lst`
 title		RT kernel 2.6.AA.BB-rtNN
 root		(hd0,0)
 kernel		/boot/vmlinuz-2.6.AA.BB-rtNN root=/dev/hda1 ro
 initrd		/boot/initrd.img-2.6.AA.BB-rtNN
  • TIP: if `default` parameter is set to `0` at the beginning of the `menu.lst` file, then try to put this entry at the top of the entries list.
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