Bootsplash : Applying splash on a patched kernel makes a Kernel Panic

Question

Hi Archers,
I tried to put a bootsplash and for that I first pached the kernel with the PKGBUILD from ABS using this HOW-TO :
http://archlinux.veloxis.de/howtos/boot … to_us.html
The patched kernel works very well.
Then I wanted to add a splash using the splash utility, following this HOW-TO :
http://wiki.archlinux.org/index.php/Bootsplash
Then I edited the grub and rebooted.
All I can see is a kernel panic, telling me this :
RAMDISK : Couldn't find valid RAM disk image starting at 0
List of all partitions :
No file system could mount root, tried :
Kernel Panic - VFS : Unable to mount root fs on unknown block (0,0)
This is quite weird since some lines above I can see that the RAMDISK has been initialized :
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Does anynone have an idea of what could be the cause of the problem ?
Thanks
++++++++++++

Answer 1

I think I've found what is the cause of the problem but this is quite weird.
To activate bootsplash, the bootsplash option have to be activated in the kernel configuration file (config) :
CONFIG_FBCON_SPLASHSCREEN=y
So I added this option at the end of the config file. The other required options were already activated by default.
After having installed the new kernel thanks to the pacman -U command, I can see in the config file, which has been automatically generated during the compilation (/boot/kconfig26), that the bootsplash option is no more activated ! The entire line has been erased.
How can an option be erased during the compilation ? Where could I find what caused this problem ? Here is my PKGBUILD, which I think is correct : (I have deactivated the Arch logo)
# $Id: PKGBUILD,v 1.286 2008/01/15 19:37:50 tpowa Exp $
# Maintainer: Tobias Powalowski <[email protected]>
# Maintainer: Thomas Baechler <[email protected]>
pkgname=kernel26
_basekernel=2.6.23
pkgver=2.6.23.14
pkgrel=3
pkgdesc="The Linux Kernel and modules"
arch=(i686 x86_64)
license=('GPL2')
groups=('base')
url="http://www.kernel.org"
backup=('boot/kconfig26' etc/mkinitcpio.d/${pkgname}.preset)
depends=('coreutils' 'module-init-tools' 'mkinitcpio>=0.5.15')
# pwc, ieee80211 and hostap-driver26 modules are included in kernel26 now
# nforce package support was abandoned by nvidia, kernel modules should cover everything now.
# kernel24 support is dropped since glibc24
replaces=('kernel24' 'kernel24-scsi' 'kernel26-scsi'
'alsa-driver' 'ieee80211' 'hostap-driver26'
'pwc' 'nforce' 'squashfs' 'unionfs' 'ivtv'
'zd1211' 'kvm-modules')
install=kernel26.install
source=(ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_basekernel.tar.bz2
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2
### next two lines only needed for rc kernel building
#http://www.kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.23-rc9.bz2
#http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.23-rc9-git2.bz2
# the main kernel config files
config config.x86_64
# the archlinux boot logos
#logo_linux_clut224.ppm
#logo_linux_mono.pbm
#logo_linux_vga16.ppm
# standard config files for mkinitcpio ramdisk
kernel26.preset
mkinitcpio-$pkgname.conf
# add possibility to load your own dsdt acpi table
acpi-dsdt-initrd-v0.8.4-2.6.21.patch
# fix bluetooth on some toshiba notebooks
toshiba-bluetooth.patch
# add additional unusual usb entry
usb-storage-unusual-devs.patch
# cfs scheduler backport, modified to apply with gregs stable patch
#http://people.redhat.com/mingo/cfs-scheduler/sched-cfs-v2.6.23.8-v24.patch
ftp://ftp.archlinux.org/other/kernel26/sched-cfs-v2.6.23.11-v24.patch
# improve intel macintosh support
mactel-linux-2.6.23.patch
# update to alsa snapshot 20071124
ftp://ftp.archlinux.org/other/kernel26/alsa-20071124.patch.bz2
ftp://ftp.archlinux.org/other/kernel26/alsa-include-20071117.patch.bz2
# fix broken acpi c states on buggy bioses, which violate acpi specification
acpi-buggy-bios.patch
# add squashfs and unionfs
http://heanet.dl.sourceforge.net/sourceforge/squashfs/squashfs3.3.tar.gz
http://download.filesystems.org/unionfs/unionfs-2.x/unionfs-2.1.11_for_2.6.23.9.diff.gz
# two patches below for aufs compatibility
put_filp.patch
lhash-2.6.22.patch
# fix hibernating support for saa7134 devices, implemented in .24 series finally
hibernate-saa7134.diff
# add possibility to undervolt certain cpus
linux-phc-0.3.0-kernel-vanilla-2.6.23rc3.patch
# adding genpatches from gentoo
2405_hostap-netdev-type.patch
# fix Leadtek_WinFast_2000
winfast-2000.patch
bootsplash-3.1.6-2.6.21.diff
build() {
[ "${CARCH}" = "i686" ] && KARCH=i386
[ "${CARCH}" = "x86_64" ] && KARCH=x86_64
cd $startdir/src/linux-$_basekernel
# add upstream patch from 2.6.23 series
patch -Np1 -i ../patch-$pkgver || return 1
# greg kroahs stable patches, in reference to:
# http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
# add them if needed
# add latest CFS scheduler backport
# in reference to lkml:
# By popular demand, here is release -v24 of the CFS scheduler patch.
# It is a full backport of the latest & greatest scheduler code to
# http://people.redhat.com/mingo/cfs-scheduler/
patch -Np1 -i ../sched-cfs-v2.6.23.11-v24.patch || return 1
### next 2 lines are only needed for rc kernels
#patch -Np1 -i ../patch-$pkgver-rc9 || return 1
#patch -Np1 -i ../patch-2.6.23-rc9-git2 || return 1
# add custom acpi dsdt patch, in reference to:
# http://gaugusch.at/kernel.shtml
# http://acpi.sourceforge.net
patch -Np1 -i ../acpi-dsdt-initrd-v0.8.4-2.6.21.patch || return 1
# fix enabling of bluetooth on some toshiba notebooks in reference to:
# http://bugs.archlinux.org/task/5608
# http://www.cwrose.de/toshiba/s5200.html#bluetooth
patch -Np1 -i ../toshiba-bluetooth.patch || return 1
# fix I/O errors with Teac HD-35PU devices
patch -Np1 -i ../usb-storage-unusual-devs.patch || return 1
# get latest alsa status, in reference to:
# ftp://ftp.suse.com/pub/projects/alsa/snapshot/driver/
# patches are created by diffing the kernel source,
# against the alsa-kernel/ directory from tarball.
# status is 20071124
patch -Np0 -i ../alsa-20071124.patch || return 1
patch -Np0 -i ../alsa-include-20071117.patch || return 1
# improve intel macintosh support, in reference to:
# http://www.mactel-linux.org/wiki/Main_Page
# http://mactel-linux.svn.sourceforge.net/viewvc/mactel-linux/trunk/kernel/
patch -Np1 -i ../mactel-linux-2.6.23.patch || return 1
# add possibility to undervolt certain cpus, in reference to:
# https://www.dedigentoo.org/trac/linux-phc/
patch -Np1 -i ../linux-phc-0.3.0-kernel-vanilla-2.6.23rc3.patch || return 1
# fix buggy bios acpi to get c states, which violate acpi specification, in reference to:
# http://bugzilla.kernel.org/show_bug.cgi?id=7578
# http://bugs.archlinux.org/task/6875
patch -Np1 -i ../acpi-buggy-bios.patch || return 1
# fix hibernate support on saa7134
# made by the vl4 team in the kernel plus a lot of
# help from one of the Alsa devs. The problem is that when you suspend to
# ram or to disk, saa7134 devices don't come out of suspend.
# sent in by: Hussam Al-Tayeb <[email protected]>
patch -Np0 -i ../hibernate-saa7134.diff || return 1
# fix Leadtek_WinFast_2000
# in reference to:
# http://www.linuxtv.org/v4lwiki/index.php/Leadtek_WinFast_2000
patch -Np0 -i ../winfast-2000.patch || return 1
# adding some genpatches from gentoo, in reference to:
# http://sources.gentoo.org/viewcvs.py/linux-patches/genpatches-2.6/trunk/2.6.23/
patch -Np1 -i ../2405_hostap-netdev-type.patch || return 1
# add sqashfs support, in reference to:
# http://squashfs.sourceforge.net/
patch -Np1 -i ../squashfs3.3/kernel-patches/linux-2.6.23/squashfs3.3-patch || return 1
# add unionfs support. in reference to:
# http://www.fsl.cs.sunysb.edu/project-unionfs.html
patch -Np1 -i ../unionfs-2.1.11_for_2.6.23.9.diff || return 1
# add put_filp and lhash patches for aufs, in reference to:
# http://aufs.sourceforge.net/
patch -Np0 -i ../put_filp.patch || return 1
patch -Np1 -i ../lhash-2.6.22.patch || return 1
patch -Np1 -i ../bootsplash-3.1.6-2.6.21.diff
# remove the extraversion from Makefile
### next line is only needed for rc kernels
#sed -i 's|^EXTRAVERSION = .*$|EXTRAVERSION =-rc9|g' Makefile
sed -i 's|^EXTRAVERSION = .*$|EXTRAVERSION =|g' Makefile
# Arch logo!
#cp ../logo_linux_clut224.ppm drivers/video/logo/
#cp ../logo_linux_mono.pbm drivers/video/logo/
#cp ../logo_linux_vga16.ppm drivers/video/logo/
if [ "$CARCH" = "x86_64" ]; then
cat ../config.x86_64 >./.config
else
cat ../config >./.config
fi
# build the full kernel version to use in pathnames
. ./.config
### next line is only needed for rc kernels
#_kernver="2.6.23-rc9${CONFIG_LOCALVERSION}"
_kernver="${_basekernel}${CONFIG_LOCALVERSION}"
# load configuration
yes "" | make config
# build!
# stop here
#msg "Stopping build"
#return 1
make bzImage modules || return 1
mkdir -p $startdir/pkg/{lib/modules,boot}
make INSTALL_MOD_PATH=$startdir/pkg modules_install || return 1
cp System.map $startdir/pkg/boot/System.map26
cp arch/$KARCH/boot/bzImage $startdir/pkg/boot/vmlinuz26
install -D -m644 Makefile \
$startdir/pkg/usr/src/linux-${_kernver}/Makefile
install -D -m644 kernel/Makefile \
$startdir/pkg/usr/src/linux-${_kernver}/kernel/Makefile
install -D -m644 .config \
$startdir/pkg/usr/src/linux-${_kernver}/.config
install -D -m644 .config $startdir/pkg/boot/kconfig26
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/include
for i in acpi asm-{generic,i386,x86_64} config linux math-emu media net pcmcia scsi sound video; do
cp -a include/$i $startdir/pkg/usr/src/linux-${_kernver}/include/
done
# copy files necessary for later builds, like nvidia and vmware
cp Module.symvers $startdir/pkg/usr/src/linux-${_kernver}
cp -a scripts $startdir/pkg/usr/src/linux-${_kernver}
# fix permissions on scripts dir
chmod og-w -R $startdir/pkg/usr/src/linux-${_kernver}/scripts
#mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/.tmp_versions
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/arch/$KARCH/kernel
cp arch/$KARCH/Makefile $startdir/pkg/usr/src/linux-${_kernver}/arch/$KARCH/
if [ "$CARCH" = "i686" ]; then
cp arch/$KARCH/Makefile.cpu $startdir/pkg/usr/src/linux-${_kernver}/arch/$KARCH/
fi
cp arch/$KARCH/kernel/asm-offsets.s $startdir/pkg/usr/src/linux-${_kernver}/arch/$KARCH/kernel/
# add headers for lirc package
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/drivers/media/video
cp drivers/media/video/*.h $startdir/pkg/usr/src/linux-${_kernver}/drivers/media/video/
for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102 usbvideo zc0301; do
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/drivers/media/video/$i
cp -a drivers/media/video/$i/*.h $startdir/pkg/usr/src/linux-${_kernver}/drivers/media/video/$i
done
# add dm headers
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/drivers/md
cp drivers/md/*.h $startdir/pkg/usr/src/linux-${_kernver}/drivers/md
# add inotify.h
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/include/linux
cp include/linux/inotify.h $startdir/pkg/usr/src/linux-${_kernver}/include/linux/
# add CLUSTERIP file for iptables
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/net/ipv4/netfilter/
cp net/ipv4/netfilter/ipt_CLUSTERIP.c $startdir/pkg/usr/src/linux-${_kernver}/net/ipv4/netfilter/
# add wireless headers
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/net/mac80211/
cp net/mac80211/*.h $startdir/pkg/usr/src/linux-${_kernver}/net/mac80211/
# add vmlinux
cp vmlinux $startdir/pkg/usr/src/linux-${_kernver}
# copy in Kconfig files
for i in `find . -name "Kconfig*"`; do
mkdir -p $startdir/pkg/usr/src/linux-${_kernver}/`echo $i | sed 's|/Kconfig.*||'`
cp $i $startdir/pkg/usr/src/linux-${_kernver}/$i
done
cd $startdir/pkg/usr/src/linux-${_kernver}/include && ln -s asm-$KARCH asm
chown -R root.root $startdir/pkg/usr/src/linux-${_kernver}
find $startdir/pkg/usr/src/linux-${_kernver} -type d -exec chmod 755 {} \;
cd $startdir/pkg/lib/modules/${_kernver} && \
(rm -f source build; ln -sf ../../../usr/src/linux-${_kernver} build)
# install fallback mkinitcpio.conf file and preset file for kernel
install -m644 -D $startdir/src/${pkgname}.preset $startdir/pkg/etc/mkinitcpio.d/${pkgname}.preset || return 1
install -m644 -D $startdir/src/mkinitcpio-$pkgname.conf $startdir/pkg/etc/mkinitcpio.d/$pkgname-fallback.conf || return 1
# set correct depmod command for install
sed -i -e "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" $startdir/kernel26.install
echo -e "# DO NOT EDIT THIS FILE\nALL_kver='${_kernver}'" > ${startdir}/pkg/etc/mkinitcpio.d/${pkgname}.kver
# remove unneeded architectures
rm -rf $startdir/pkg/usr/src/linux-${_kernver}/arch/{alpha,arm,arm26,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,xtensa}
I'm a newbie in the kernel world so I'm a little bit lost in all theses files and options.
Thanks
Last edited by jaymz_64 (2008-02-07 12:20:37)