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#!/bin/sh -e
version="$1"
kdumpdir="/var/lib/kdump"
[ -x /usr/sbin/mkinitramfs ] || exit 0
# passing the kernel version is required
if [ -z "${version}" ]; then
echo >&2 "W: kdump-tools: ${DPKG_MAINTSCRIPT_PACKAGE:-kdump-tools package} did not pass a version number"
exit 2
fi
if ! linux-version list | grep "${version}" > /dev/null ; then
exit 0
fi
# exit if kernel does not need an initramfs
if [ "$INITRD" = 'No' ]; then
exit 0
fi
# avoid running multiple times
if [ -n "$DEB_MAINT_PARAMS" ]; then
eval set -- "$DEB_MAINT_PARAMS"
if [ -z "$1" ] || [ "$1" != "configure" ]; then
exit 0
fi
fi
# We need a modified copy of initramfs-tools directory
# with MODULES=dep in initramfs.conf
if [ ! -d "$kdumpdir" ];then
mkdir "$kdumpdir" || true
fi
# Force re-creation of $kdumpdir/initramfs-tools
# in case the source has changed since last time
# we ran
if [ -d "$kdumpdir/initramfs-tools" ];then
rm -Rf $kdumpdir/initramfs-tools || true
fi
cp -pr /etc/initramfs-tools "$kdumpdir" || true
initramfsdir="$kdumpdir/initramfs-tools"
# Add scsi_dh_* modules if in use otherwise
# kexec reboot on multipath will fail
# (LP: #1635597)
for I in $(lsmod | grep scsi_dh | cut -d" " -f1);do
echo "${I}" >> $initramfsdir/modules
done
sed -e 's/MODULES=.*/MODULES=dep/' /etc/initramfs-tools/initramfs.conf > "$initramfsdir/initramfs.conf" || true
if ! [ -e "$initramfsdir/initramfs.conf" ];then
echo >&2 "W: kdump-tools: Unable to create $initramfsdir/initramfs.conf"
exit 2
fi
# Mark our custom initramfs.conf to indicate that kdump-tools
# hooks/scripts should run/get included in our minimal initrd.
#
# Unfortunately, this is not true for Debian. OPTION=VAR is a
# control provided only by Ubuntu initramfs-tools, so this is
# innocuous /harmless on Debian - kept here for better code
# sync between Debian and Ubuntu. We needed special checks on
# hook/script in Debian to prevent them on regular initrd.
echo "KDUMP=y" >> $initramfsdir/initramfs.conf
# Cleaning up existing initramfs with same version
# as mkinitramfs do not have a force option
if [ -e "$kdumpdir/initrd.img-${version}" ];then
rm -f "$kdumpdir/initrd.img-${version}" || true
fi
# we're good - create initramfs.
echo "kdump-tools: Generating $kdumpdir/initrd.img-${version}"
if mkinitramfs -d "$initramfsdir" -o "$kdumpdir/initrd.img-${version}.new" "${version}";then
mv "$kdumpdir/initrd.img-${version}.new" "$kdumpdir/initrd.img-${version}"
else
mkinitramfs_return="$?"
rm -f "${initramfs}.new"
echo "update-initramfs: failed for ${initramfs} with $mkinitramfs_return." >&2
exit $mkinitramfs_return
fi
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