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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
#!/bin/sh
#
# polystrap - create a foreign architecture rootfs using multistrap, fakeroot,
# fakechroot and qemu usermode emulation
#
# Copyright (C) 2011 by Johannes 'josch' Schauer <j.schauer@email.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
usage() {
echo "Usage: $0: [-f] [-v] [-n] [-s suite] [-a arch] [-d directory] [-m mirror] [-p packages] platform\n" >&2
}
export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C
export PATH=$PATH:/usr/sbin:/sbin
if [ "$FAKEROOTKEY" = "" ]; then
echo "I: re-executing script inside fakeroot"
fakeroot "$0" "$@";
exit
fi
FORCE=""
MSTRAP_SIM=
EXIT_ON_ERROR=true
while getopts efvs:a:d:m:p:n opt; do
case $opt in
s) _SUITE="$OPTARG";;
a) _ARCH="$OPTARG";;
d) _ROOTDIR="$OPTARG";;
m) _MIRROR="$OPTARG";;
p) _PACKAGES="$OPTARG";;
n) MSTRAP_SIM="--simulate";;
e) EXIT_ON_ERROR=false;;
v) set -x;;
f) FORCE=true;;
?) usage; exit 1;;
esac
done
shift $(($OPTIND - 1))
[ "$#" -ne 1 ] && { echo "too many positional arguments" >&2; usage; exit 1; }
[ "$EXIT_ON_ERROR" = true ] && set -e
BOARD="$1"
[ ! -r "$BOARD" ] && { echo "cannot find target directory: $BOARD" >&2; exit 1; }
[ ! -r "$BOARD/multistrap.conf" ] && { echo "cannot read multistrap config: $BOARD/multistrap.conf" >&2; exit 1; }
# source default options
. "default/config"
# overwrite default options by target options
[ -r "$BOARD/config" ] && . "$BOARD/config"
# overwrite target options by commandline options
SUITE=${_SUITE:-$SUITE}
ARCH=${_ARCH:-$ARCH}
ROOTDIR=$(readlink -m ${_ROOTDIR:-$ROOTDIR})
MIRROR=${_MIRROR:-$MIRROR}
if [ "$_PACKAGES" = "" ] && [ -r "$BOARD/packages" ]; then
# if no packages were given by commandline, read from package files
for f in $BOARD/packages/*; do
while read line; do PACKAGES="$PACKAGES $line"; done < "$f"
done
else
# otherwise set as given by commandline
PACKAGES="$_PACKAGES"
fi
export QEMU_LD_PREFIX="`readlink -m "$ROOTDIR"`"
export FAKECHROOT_CMD_SUBST=/usr/bin/ldd=/usr/bin/ldd.fakechroot:/sbin/ldconfig=/bin/true
echo "I: --------------------------"
echo "I: suite: $SUITE"
echo "I: arch: $ARCH"
echo "I: rootdir: $ROOTDIR"
echo "I: mirror: $MIRROR"
echo "I: pkgs: $PACKAGES"
echo "I: --------------------------"
[ -e "$ROOTDIR.tar" ] && [ ! "$FORCE" = true ] && { echo "tarball $ROOTDIR.tar still exists" >&2; exit 1; }
# if rootdir exists, either warn and abort or delete and continue
if [ -e "$ROOTDIR" ]; then
if [ "$FORCE" = true ]; then
rm -rf $ROOTDIR
else
echo "root directory $ROOTDIR still exists" >&2
exit 1
fi
fi
# create multistrap.conf
echo "I: create multistrap.conf"
MULTISTRAPCONF=`tempfile -d . -p multistrap`
echo -n > "$MULTISTRAPCONF"
while read line; do
eval echo $line >> "$MULTISTRAPCONF"
done < $BOARD/multistrap.conf
# download and extract packages
echo "I: run multistrap" >&2
multistrap $MSTRAP_SIM -f "$MULTISTRAPCONF"
[ -z "$MSTRAP_SIM" ] || exit 0
rm -f "$MULTISTRAPCONF"
# convert absolute symlinks for fakechroot
for link in `find $ROOTDIR -type l`; do
target=`readlink $link`
if [ "${target%%/*}" = "" ]; then # target begins with slash
echo "I: convert symlink: ${link#$ROOTDIR} -> $target"
rm $link
ln -s ${ROOTDIR}$target $link
fi
done
# copy initial directory tree - dereference symlinks
echo "I: copy initial directory root tree $BOARD/root/ to $ROOTDIR/"
if [ -r "$BOARD/root" ]; then
cp --recursive --dereference $BOARD/root/* $ROOTDIR/
fi
# preseed debconf
echo "I: preseed debconf"
if [ -r "$BOARD/debconfseed.txt" ]; then
cp "$BOARD/debconfseed.txt" $ROOTDIR/tmp/
fakechroot chroot $ROOTDIR debconf-set-selections /tmp/debconfseed.txt
rm $ROOTDIR/tmp/debconfseed.txt
fi
# run preinst scripts
for script in $ROOTDIR/var/lib/dpkg/info/*.preinst; do
[ "$script" = "$ROOTDIR/var/lib/dpkg/info/vpnc.preinst" ] && continue
echo "I: run preinst script ${script##$ROOTDIR}"
DPKG_MAINTSCRIPT_NAME=preinst \
DPKG_MAINTSCRIPT_PACKAGE="`basename $script .preinst`" \
fakechroot chroot $ROOTDIR ${script##$ROOTDIR} install
done
# run dpkg --configure -a twice because of errors during the first run
echo "I: configure packages"
fakechroot chroot $ROOTDIR /usr/bin/dpkg --configure -a || fakechroot chroot $ROOTDIR /usr/bin/dpkg --configure -a
# source hooks
if [ -r "$BOARD/hooks" ]; then
for f in $BOARD/hooks/*; do
echo "I: run hook $f"
. $f
done
fi
#cleanup
echo "I: cleanup"
rm $ROOTDIR/usr/sbin/policy-rc.d
# need to generate tar inside fakechroot so that absolute symlinks are correct
# tar is clever enough to not try and put the archive inside itself
TARBALL=$(basename $ROOTDIR).tar
echo "I: create tarball $TARBALL"
fakechroot chroot $ROOTDIR tar -cf $TARBALL -C / .
mv $ROOTDIR/$TARBALL .
|
