3 # Copyright 2009 Red Hat, Inc. All rights reserved.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 echo "Warning: $@" >&2
25 [[ $beverbose ]] && echo "$@" >&2
33 # 80x25 linebreak here ^
34 echo "Usage: $0 [OPTION]... <initramfs> <base image> [<image>...]
35 Creates initial ramdisk image by concatenating several images from the command
36 line and /boot/dracut/
38 -f, --force Overwrite existing initramfs file.
39 -i, --imagedir Directory with additional images to add
40 (default: /boot/dracut/)
41 -o, --overlaydir Overlay directory, which contains files that
42 will be used to create an additional image
43 --nooverlay Do not use the overlay directory
44 --noimagedir Do not use the additional image directory
45 -h, --help This message
46 --debug Output debug information of the build process
47 -v, --verbose Verbose output during the build process
52 imagedir
=/boot
/dracut
/
53 overlay
=/var
/lib
/dracut
/overlay
57 -f|
--force) force
=yes;;
58 -i|
--imagedir) imagedir
=$2;shift;;
59 -o|
--overlaydir) overlay
=$2;shift;;
60 --nooverlay) no_overlay
=yes;shift;;
61 --noimagedir) no_imagedir
=yes;shift;;
62 -h|
--help) usage
; exit 1 ;;
63 --debug) debug
="yes";;
64 -v|
--verbose) beverbose
="yes";;
65 -*) printf "\nUnknown option: %s\n\n" "$1" >&2; usage
; exit 1;;
73 if [[ -z $outfile ]]; then
74 derror
"No output file specified."
81 if [[ -z $baseimage ]]; then
82 derror
"No base image specified."
87 if [[ -f $outfile && ! $force ]]; then
88 derror
"Will not override existing initramfs ($outfile) without --force"
92 if [[ ! $no_imagedir && ! -d $imagedir ]]; then
93 derror
"Image directory $overlay is not a directory"
97 if [[ ! $no_overlay && ! -d $overlay ]]; then
98 derror
"Overlay $overlay is not a directory"
102 if [[ ! $no_overlay ]]; then
103 ofile
="$imagedir/90-overlay.img"
104 dinfo
"Creating image $ofile from directory $overlay"
105 ( cd "$overlay"; find . |
cpio --quiet -H newc
-o |
gzip -9 > "$ofile"; )
108 if [[ ! $no_imagedir ]]; then
109 for i
in "$imagedir/"*.img
; do
110 [[ -f $i ]] && images
+=("$i")
116 dinfo
"Using base image $baseimage"
117 cat "$baseimage" > "$outfile"
119 for i
in "${images[@]}"; do
121 cat "$i" >> "$outfile"
124 dinfo
"Created $outfile"