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xen-tools.xen-tools/hooks/debian/80-install-kernel
2010-04-17 03:24:13 +02:00

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#!/bin/sh
#
# If the pygrub flag is set, this script will install the necessary
# packages to boot the VM from the dom0 via pygrub. This script installs
# the kernel and modules and generates a grub menu.lst in the newly
# created maschine.
#
# Dmitry Nedospasov
# --
# http://nedos.net
prefix=$1
#
# Source our common functions
#
if [ -e /usr/lib/xen-tools/common.sh ]; then
. /usr/lib/xen-tools/common.sh
else
. ./hooks/common.sh
fi
if [ ${pygrub} ]; then
#
# Log our start
#
logMessage Script $0 starting
#
# The type of kernel that we will be installing
#
# linux_kernel_type="desktop"
#
linux_kernel_package="linux-image-2.6-xen-${arch}"
logMessage "Installing the ${linux_kernel_package} kernel image"
if chroot ${prefix} /usr/bin/apt-cache show ${linux_kernel_package} >/dev/null 2>/dev/null; then
logMessage "Package '${linux_kernel_package}' is available - installing"
installDebianPackage ${prefix} initramfs-tools
installDebianPackage ${prefix} ${linux_kernel_package}
# Force initrd if none exists
echo ${prefix}/boot/initrd* | grep -q 2\\.6
if [ $? -ne 0 ]; then
chroot ${prefix} update-initramfs -c -k `ls -1
${prefix}/lib/modules/ | head -n 1`
fi
# Generate grub menu.lst
LNZ=`basename \`ls -1 ${prefix}/boot/vmlinuz*|tail -n 1\``
RD=`basename \`ls -1 ${prefix}/boot/initrd*|tail -n 1\``
mkdir -p ${prefix}/boot/grub
cat - <<-EOF > ${prefix}/boot/grub/menu.lst
default 0
timeout 2
title Debian
root (hd0,0)
kernel /boot/$LNZ root=/dev/xvda2 ro
initrd /boot/$RD
title Debian (Single-User)
root (hd0,0)
kernel /boot/$LNZ root=/dev/xvda2 ro single
initrd /boot/$RD
EOF
else
logMessage "Package '${linux_kernel_package}' is not available"
fi
#
# Install the module-init-tools package.
#
installDebianPackage ${prefix} module-init-tools
else
logMessage pygrub not set, skipping kernel install
fi # if pygrub
#
# Log our finish
#
logMessage Script $0 finished