/usr/bin/dracut-catimages is in dracut 040+1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | #!/bin/bash --norc
#
# Copyright 2009 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
dwarning() {
echo "Warning: $@" >&2
}
dinfo() {
[[ $beverbose ]] && echo "$@" >&2
}
derror() {
echo "Error: $@" >&2
}
usage() {
# 80x25 linebreak here ^
cat << EOF
Usage: $0 [OPTION]... <initramfs> <base image> [<image>...]
Creates initial ramdisk image by concatenating several images from the command
line and /boot/dracut/
-f, --force Overwrite existing initramfs file.
-i, --imagedir Directory with additional images to add
(default: /boot/dracut/)
-o, --overlaydir Overlay directory, which contains files that
will be used to create an additional image
--nooverlay Do not use the overlay directory
--noimagedir Do not use the additional image directory
-h, --help This message
--debug Output debug information of the build process
-v, --verbose Verbose output during the build process
EOF
}
imagedir=/boot/dracut/
overlay=/var/lib/dracut/overlay
while (($# > 0)); do
case $1 in
-f|--force) force=yes;;
-i|--imagedir) imagedir=$2;shift;;
-o|--overlaydir) overlay=$2;shift;;
--nooverlay) no_overlay=yes;shift;;
--noimagedir) no_imagedir=yes;shift;;
-h|--help) usage; exit 1 ;;
--debug) debug="yes";;
-v|--verbose) beverbose="yes";;
-*) printf "\nUnknown option: %s\n\n" "$1" >&2; usage; exit 1;;
*) break ;;
esac
shift
done
outfile=$1; shift
if [[ -z $outfile ]]; then
derror "No output file specified."
usage
exit 1
fi
baseimage=$1; shift
if [[ -z $baseimage ]]; then
derror "No base image specified."
usage
exit 1
fi
if [[ -f $outfile && ! $force ]]; then
derror "Will not override existing initramfs ($outfile) without --force"
exit 1
fi
if [[ ! $no_imagedir && ! -d $imagedir ]]; then
derror "Image directory $overlay is not a directory"
exit 1
fi
if [[ ! $no_overlay && ! -d $overlay ]]; then
derror "Overlay $overlay is not a directory"
exit 1
fi
if [[ ! $no_overlay ]]; then
ofile="$imagedir/90-overlay.img"
dinfo "Creating image $ofile from directory $overlay"
type pigz &>/dev/null && gzip=pigz || gzip=gzip
( cd "$overlay"; find . |cpio --quiet -H newc -o |$gzip -9 > "$ofile"; )
fi
if [[ ! $no_imagedir ]]; then
for i in "$imagedir/"*.img; do
[[ -f $i ]] && images+=("$i")
done
fi
images+=($@)
dinfo "Using base image $baseimage"
cat -- "$baseimage" > "$outfile"
for i in "${images[@]}"; do
dinfo "Appending $i"
cat -- "$i" >> "$outfile"
done
dinfo "Created $outfile"
exit 0
|