Files
kdumpst/module-setup.sh
Guilherme G. Piccoli f92eee306a module-setup.sh: Bail-out if makedumpfile is not available
If we don't have makedumpfile, it doesn't make sense to construct
the kdump initrd and let it be loaded; it's going to fail in the
kdump dmesg collection, during a panic event, with no clear traces
for users to diagnose the issue.

So, let's bail-out if we don't have makedumpfile, forcing the
kdump load to fail instead, which is clearly warned in journalctl.
Also, change the approach for the kdump.conf file as well, in
order to fail creating the initrd if any of the files are missing.

While at it, fix a trailing space in the module-setup.sh file.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
2023-03-31 15:34:42 -03:00

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#!/bin/sh
#
# SPDX-License-Identifier: LGPL-2.1+
#
# Copyright (c) 2021 Valve.
#
# SteamOS kdump module construction/inclusion script for
# Dracut-based initramfs.
#
# Only include kdump if it is explicitly asked in the argument list
check() {
return 255
}
installkernel() {
hostonly='' instmods ext4
}
install() {
# Having a valid /usr/share/kdump/kdump.conf is essential for kdump.
if [ ! -s "/usr/share/kdump/kdump.conf" ]; then
logger "kdump-steamos: failed to create initrd, kdump.conf is missing"
exit 1
fi
# Also true for makedumpfile...
if [ ! -x "$(command -v makedumpfile)" ]; then
logger "kdump-steamos: failed to create initrd, makedumpfile is missing"
exit 1
fi
. /usr/share/kdump/kdump.conf
# First clear all unnecessary firmwares/drivers added by drm in order to
# reduce the size of this minimal initramfs being created. This should
# be already done via command-line arguments, but let's play safe and delete
# from here as well just in case.
rm -rf "$initdir"/usr/lib/firmware/amdgpu/
rm -rf "$initdir"/usr/lib/modules/*/kernel/drivers/gpu/drm/amd/*
# Install necessary binaries
inst date
inst sync
inst makedumpfile
mkdir -p "$initdir"/usr/lib/kdump
# Determine the numerical devnode for kdump, and save it on initrd;
# notice that partset link is not available that early in boot time.
DEVN="$(readlink -f "${MOUNT_DEVNODE}")"
echo "${DEVN}" > "$initdir"/usr/lib/kdump/kdump.devnode
cp -LR --preserve=all /usr/lib/kdump/* "$initdir"/usr/lib/kdump/
cp -LR --preserve=all /usr/share/kdump/kdump.conf "$initdir"/usr/lib/kdump/kdump.conf
inst_hook pre-mount 01 "$moddir/kdump-collect.sh"
}