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#1 2010-11-02 19:30:58

valvet
Member
From: Denmark
Registered: 2009-06-06
Posts: 147

[SOLVED] Compiling custom kernel - what about kernel headers?

Hi

I compiled my very first custom kernel (applaud here).. aswell as new kernel-headers for said kernel.

Do I need to install these headers also? I noticed that VirtualBox complains about incorrect headers for my kernel when I modprobe vboxdrv for example, so I guess I answered my own question kind of.

But, here's the thing. I still have my original -ARCH kernel which I still like to boot on whenever this one messes up as I'm playing.. if I install the kernel headers for my new kernel, will I have to install kernel headers for the -ARCH kernel whenever I'm booting using that?

Thanks.

Last edited by valvet (2010-11-04 13:11:24)

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#2 2010-11-02 19:32:37

graysky
Wiki Maintainer
From: :wq
Registered: 2008-12-01
Posts: 10,597
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Re: [SOLVED] Compiling custom kernel - what about kernel headers?

Post the PKGBUILD you wrote.  You may have "installed" the headers without knowing it depending on how your wrote it.

CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

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#3 2010-11-02 19:37:02

valvet
Member
From: Denmark
Registered: 2009-06-06
Posts: 147

Re: [SOLVED] Compiling custom kernel - what about kernel headers?

It's the one from ABS, with some small modifications (negative channel patch for airmon-ng). The headers are not installed, as I did not do makepkg -i, just makepkg.

# $Id: PKGBUILD 97527 2010-10-31 08:55:41Z tpowa $
# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
# Maintainer: Thomas Baechler <thomas@archlinux.org>
pkgbase="kernel26"
#pkgname=('kernel26' 'kernel26-headers' 'kernel26-manpages' 'kernel26-docs') # Build stock -ARCH kernel
pkgname=('kernel26-swamp' 'kernel26-swamp-headers')
_kernelname=${pkgname#kernel26}
_basekernel=2.6.35
pkgver=${_basekernel}.8
pkgrel=1
makedepends=('xmlto' 'docbook-xsl')
_patchname="patch-${pkgver}-${pkgrel}-ARCH"
#_patchname="patch-${pkgver}-1-ARCH"
arch=(i686 x86_64)
license=('GPL2')
url="http://www.kernel.org"
source=(ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_basekernel.tar.bz2
        ftp://ftp.archlinux.org/other/kernel26/${_patchname}.bz2
        # the main kernel config files
        config config.x86_64
        # standard config files for mkinitcpio ramdisk
        kernel26.preset
        channel-negative-one-maxim.patch)
md5sums=('091abeb4684ce03d1d936851618687b6'
         '405287a231318c74bbe32b01c0eef1b5'
         'a913d8ed55cbf12b3294cd5c6b5d0c46'
         '4bab40b7d9a0a9f2f497c622cadbf057'
         '25584700a0a679542929c4bed31433b6'
         '12553c7b16b615f979def399c47b3a76')

build() {
  cd ${srcdir}/linux-$_basekernel
  # Add -ARCH patches
  # See http://projects.archlinux.org/linux-2.6-ARCH.git/
  patch -Np1 -i ${srcdir}/${_patchname} || return 1

  # Channel negative-one (-1) patch
  patch -Np1 -i ${srcdir}/channel-negative-one-maxim.patch || return 1

  if [ "$CARCH" = "x86_64" ]; then
    cat ../config.x86_64 >./.config
  else
    cat ../config >./.config
  fi
  if [ "${_kernelname}" != "" ]; then
    sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
  fi
  # get kernel version  
  make prepare
  # load configuration
  # Configure the kernel. Replace the line below with one of your choice.
  #make menuconfig # CLI menu for configuration
  make nconfig # new CLI menu for configuration
  #make xconfig # X-based configuration
  #make oldconfig # using old config from previous kernel version
  # ... or manually edit .config
  ####################
  # stop here
  # this is useful to configure the kernel
  #msg "Stopping build"
  #return 1
  ####################
  yes "" | make config
  # build!
  make ${MAKEFLAGS} bzImage modules || return 1
}

package_kernel26-swamp() {
  pkgdesc="The Linux Kernel and modules"
  groups=('base')
  backup=(etc/mkinitcpio.d/${pkgname}.preset)
  depends=('coreutils' 'linux-firmware' 'module-init-tools' 'mkinitcpio>=0.5.20')
  # pwc, ieee80211 and hostap-driver26 modules are included in kernel26 now
  # nforce package support was abandoned by nvidia, kernel modules should cover everything now.
  # kernel24 support is dropped since glibc24
  replaces=('kernel24' 'kernel24-scsi' 'kernel26-scsi'
            'alsa-driver' 'ieee80211' 'hostap-driver26'
            'pwc' 'nforce' 'squashfs' 'unionfs' 'ivtv'
            'zd1211' 'kvm-modules' 'iwlwifi' 'rt2x00-cvs'
            'gspcav1' 'atl2' 'wlan-ng26' 'rt2500' 'nouveau-drm')
  install=kernel26.install
  optdepends=('crda: to set the correct wireless channels of your country')

  KARCH=x86
  cd ${srcdir}/linux-$_basekernel
  # get kernel version
  _kernver="$(make kernelrelease)"
  mkdir -p ${pkgdir}/{lib/modules,lib/firmware,boot}
  make INSTALL_MOD_PATH=${pkgdir} modules_install || return 1
  cp System.map ${pkgdir}/boot/System.map26${_kernelname}
  cp arch/$KARCH/boot/bzImage ${pkgdir}/boot/vmlinuz26${_kernelname}
  #  # add vmlinux
  install -m644 -D vmlinux ${pkgdir}/usr/src/linux-${_kernver}/vmlinux

  # install fallback mkinitcpio.conf file and preset file for kernel
  install -m644 -D ${srcdir}/kernel26.preset ${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset || return 1
  # set correct depmod command for install
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
    -i $startdir/kernel26.install
  sed \
    -e "s|source .*|source /etc/mkinitcpio.d/kernel26${_kernelname}.kver|g" \
    -e "s|default_image=.*|default_image=\"/boot/${pkgname}.img\"|g" \
    -e "s|fallback_image=.*|fallback_image=\"/boot/${pkgname}-fallback.img\"|g" \
    -i ${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset

  echo -e "# DO NOT EDIT THIS FILE\nALL_kver='${_kernver}'" > ${pkgdir}/etc/mkinitcpio.d/${pkgname}.kver
  # remove build and source links
  rm -f ${pkgdir}/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf ${pkgdir}/lib/firmware
}

package_kernel26-swamp-headers() {
  pkgdesc="Header files and scripts for building modules for kernel26"
  mkdir -p ${pkgdir}/lib/modules/${_kernver}
  cd ${pkgdir}/lib/modules/${_kernver}
  ln -sf ../../../usr/src/linux-${_kernver} build
  cd ${srcdir}/linux-$_basekernel
  install -D -m644 Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/Makefile
  install -D -m644 kernel/Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile
  install -D -m644 .config \
    ${pkgdir}/usr/src/linux-${_kernver}/.config
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include

  for i in acpi asm-generic config generated linux math-emu media net pcmcia scsi sound trace video; do
    cp -a include/$i ${pkgdir}/usr/src/linux-${_kernver}/include/
  done

  # copy arch includes for external modules
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/x86
  cp -a arch/x86/include ${pkgdir}/usr/src/linux-${_kernver}/arch/x86/

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers ${pkgdir}/usr/src/linux-${_kernver}
  cp -a scripts ${pkgdir}/usr/src/linux-${_kernver}
  # fix permissions on scripts dir
  chmod og-w -R ${pkgdir}/usr/src/linux-${_kernver}/scripts
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions

  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel

  cp arch/$KARCH/Makefile ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
  if [ "$CARCH" = "i686" ]; then
    cp arch/$KARCH/Makefile_32.cpu ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
  fi
  cp arch/$KARCH/kernel/asm-offsets.s ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel/

  # add headers for lirc package
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video
  cp drivers/media/video/*.h  ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/
  for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102 usbvideo zc0301; do
   mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
   cp -a drivers/media/video/$i/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
  done
  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile
  # add dm headers
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
  cp drivers/md/*.h  ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
  # add inotify.h
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/linux
  cp include/linux/inotify.h ${pkgdir}/usr/src/linux-${_kernver}/include/linux/
  # add wireless headers
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
  cp net/mac80211/*.h ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core
  cp drivers/media/dvb/dvb-core/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core/
  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/11194
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
  cp include/config/dvb/*.h ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  cp drivers/media/dvb/frontends/lgdt330x.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  cp drivers/media/video/msp3400-driver.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  # add dvb headers  
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb
  cp drivers/media/dvb/dvb-usb/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb/
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends
  cp drivers/media/dvb/frontends/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners
  cp drivers/media/common/tuners/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners/
  # add xfs and shmem for aufs building
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/mm
  cp fs/xfs/xfs_sb.h ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h
  # add headers vor virtualbox
  # in reference to:
  # http://bugs.archlinux.org/task/14568
  cp -a include/drm $pkgdir/usr/src/linux-${_kernver}/include/
  # add headers for broadcom wl
  # in reference to:
  # http://bugs.archlinux.org/task/14568
  cp -a include/trace $pkgdir/usr/src/linux-${_kernver}/include/
  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do 
    mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/`echo $i | sed 's|/Kconfig.*||'`
    cp $i ${pkgdir}/usr/src/linux-${_kernver}/$i
  done

  chown -R root.root ${pkgdir}/usr/src/linux-${_kernver}
  find ${pkgdir}/usr/src/linux-${_kernver} -type d -exec chmod 755 {} \;
  # remove unneeded architectures
  rm -rf ${pkgdir}/usr/src/linux-${_kernver}/arch/{alpha,arm,arm26,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,xtensa}
}

#package_kernel26-firmware() {
#  pkgdesc="The included firmware files of the Linux Kernel"
#  groups=('base')
#
#  cd ${srcdir}/linux-$_basekernel
#  make firmware || return 1
#  make INSTALL_MOD_PATH=${pkgdir} firmware_install || return 1
#}

package_kernel26-swamp-manpages() {
pkgdesc="Kernel hackers manual - Section 9 manpages that comes with the Linux kernel."

cd ${srcdir}/linux-$_basekernel
make mandocs || return 1

install -d ${pkgdir}/usr/share/man/man9/
install ${srcdir}/linux-${_basekernel}/Documentation/DocBook/man/*.9.gz \
${pkgdir}/usr/share/man/man9/

find ${pkgdir} -type f -exec chmod 644 {} \;
}

package_kernel26-swamp-docs() {
pkgdesc="Kernel hackers manual - HTML documentation that comes with the Linux kernel."

cd ${srcdir}/linux-$_basekernel
mkdir -p $pkgdir/usr/src/linux-$_kernver
mv Documentation $pkgdir/usr/src/linux-$_kernver
find $pkgdir -type f -exec chmod 444 {} \;
find $pkgdir -type d -exec chmod 755 {} \;
# remove a file already in kernel26 package
rm -f $pkgdir/usr/src/linux-$_kernver/Documentation/DocBook/Makefile
}

I can install these new headers and rebuild the vboxdrv module, but what happens when I boot into the stock kernel? The headers I build here are not for that kernel, so I would need to use the headers that came with the stock kernel I imagine - whenever booting using that.

If that's the case.. that's gonna get anoying. Boot kernel 1 - install headers 1. Boot kernel 2 - install headers 2.. mm. Is there any way around that?

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#4 2010-11-02 19:53:01

machoo02
Member
Registered: 2009-02-22
Posts: 35

Re: [SOLVED] Compiling custom kernel - what about kernel headers?

The headers for each kernel are installed in their own directory in /usr/src, for example

[matt@darwin src]$ ls -a
total 20K
drwxr-xr-x  5 root root 4.0K Nov  1 19:50 ./
drwxr-xr-x 10 root root 4.0K Oct 27 11:00 ../
drwxr-xr-x 21 root root 4.0K Oct 31 22:55 linux-2.6.35-ARCH/
drwxr-xr-x 21 root root 4.0K Nov  1 20:32 linux-2.6.36-lqx/
[matt@darwin src]$

Last edited by machoo02 (2010-11-02 19:53:21)

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#5 2010-11-02 19:54:46

valvet
Member
From: Denmark
Registered: 2009-06-06
Posts: 147

Re: [SOLVED] Compiling custom kernel - what about kernel headers?

Ohh, I wasn't aware of that :-).. clever! Much easier. Thank you!

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