diskimage-builder/elements/baremetal/cleanup.d/99-extract-kernel-and-ramdisk
Ben Nemec 381ff6ab1d Fix set -eu and pipefail failures
Fixes problems found by set -eu and pipefail, including:
-Many unset variables
-Commands that can fail under normal circumstances, which breaks
with set -e.  This change swallows those expected errors to allow
our existing error code to handle them.
-The dkms element was not finding Fedora kernel versions correctly.
This may be an issue for other distros too, but since Fedora was
working fine without this functionality I only changed it to print
a warning message rather than failing the build when it happens.
-The ramdisk init script will not be set -eu because if it fails
the result is a kernel panic, which can be tricky to debug.
However, in testing with set -e a few failing commands were found
and have been fixed in this patch.

Change-Id: I44cf98dfc80cfcaec54b88cc83be80a3dbf2cec3
2014-04-15 20:53:15 -05:00

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#!/bin/bash
#
# Copyright 2014 Hewlett-Packard Development Company, L.P.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
set -e
[ -n "$TARGET_ROOT" ]
# Dig up the initrd and kernel to use.
BOOTDIR="$TARGET_ROOT/boot"
KERNEL=
RAMDISK=
if [ -f $TARGET_ROOT/etc/redhat-release ]; then
# Prioritize PAE if present
KERNEL=$(ls -1rv $BOOTDIR/vmlinuz* | grep PAE | grep -v debug | head -1 || echo "")
if [ ! $KERNEL ]; then
KERNEL=$(ls -1rv $BOOTDIR/vmlinuz* | grep -v debug | head -1 || echo "")
if [ ! $KERNEL ]; then
echo "No suitable kernel found."
exit 1
fi
fi
KERNEL=$(basename $KERNEL)
KERNEL_VERSION=`echo $KERNEL | sed 's/vmlinuz-//g'`
RAMDISK=$(basename `ls $BOOTDIR/initramfs-$KERNEL_VERSION.img` || echo "")
if [ ! $RAMDISK ]; then
echo "Can't find an initramfs for the $KERNEL_VERSION version of the kernel."
exit 1
fi
elif [ -f $TARGET_ROOT/etc/debian_version ]; then
KERNEL=$(basename `ls -1rv $BOOTDIR/vmlinuz*generic | head -1`)
RAMDISK=$(basename `ls -1rv $BOOTDIR/initrd*generic | head -1`)
elif [ -f $TARGET_ROOT/etc/SuSE-release ]; then
KERNEL=$(basename `ls -1rv $BOOTDIR/vmlinuz`)
RAMDISK=$(basename `ls -1rv $BOOTDIR/initrd`)
else
echo "ERROR: Unable to detect operating system"
exit 1
fi
sudo cp $BOOTDIR/$KERNEL ${IMAGE_NAME}.vmlinuz
sudo cp $BOOTDIR/$RAMDISK ${IMAGE_NAME}.initrd
sudo chmod a+r ${IMAGE_NAME}.vmlinuz
sudo chmod a+r ${IMAGE_NAME}.initrd