blob: 73dbea512b503bf2bb38637d0e4c712882219c3c (
plain)
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
129
130
|
#!/bin/bash --norc
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
#
# 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
|
