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
|
#! /bin/bash
#
# usbboot_grub
#
# Author: Michael Towers <gradgrind[at]online[dot]de>
# This file is part of the larch project.
#
# larch 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.
#
# larch 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 larch; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
#----------------------------------------------------------------------------
# 2008.06.22
APP="$( basename $0 )"
usage () {
echo
echo "Usage:"
echo " ${APP} [<Arch installation root directory>]"
echo
echo " Prepare a bootable USB-stick from a larch build."
echo " If no Arch directory is given, '/' is assumed."
exit 1
}
if [ -n "$1" ]; then
AINSTALL="$( readlink -f $1 )"
if [ ! -x ${AINSTALL}/sbin/grub ]; then
echo "ERROR: ${AINSTALL}/sbin/grub not found"
exit 1
fi
else
AINSTALL=""
if ! which grub &>/dev/null; then
echo "ERROR: grub not found"
exit 1
fi
fi
CDDATA=${AINSTALL}/.larch/cd
if [ ! -f ${CDDATA}/system.sqf ]; then
echo "ERROR: ${CDDATA} does not contain larch cd data"
usage
fi
if [ ! -f ${CDDATA}/boot/grub/stage1 ]; then
echo "ERROR: grub data not in ${CDDATA}/boot/grub"
exit 1
fi
echo "//"
echo "// **********************************************************"
echo "//"
echo "// ${APP} will prepare a bootable USB stick with your"
echo "// previously prepared larch data from ${CDDATA}"
echo "//"
echo "// As an alternative it might render your system unbootable."
echo "// If that thought disturbs you please don't continue."
echo "//"
echo "// This program is DANGEROUS - you have been warned!!!"
echo "//"
echo "// If you are too cool to be concerned about the warnings,"
echo "// please insert your USB stick, which should already be"
echo "// appropriately partitioned."
echo "//"
echo "// **********************************************************"
echo "//"
# test if the script is started by root user. If not, exit
if [ $UID -ne 0 ]; then
echo "Only root can run ${APP}"; exit 1
fi
echo "//"
echo "// Enter the number of the partition you wish to use (0 to quit):"
devices=/tmp/devices$$
:> ${devices}
i=0
sfdisk -d | grep "/dev/sd[a-z][1-4] " | grep -v "Id= [05]" | \
sed "s|\(.*\):.*size=\( *[0-9]*\).*|\1 \2|" | while read device sectors; do
i=$(( ${i} + 1 ))
echo "${device}" >>${devices}
echo "// ${i}: ${device} $(( ${sectors} / 2048 )) MiB"
done
while true; do
read -p "// Device: " d
if [ "${d}" -eq "0" ]; then exit 1; fi
i=0
{ while read device; do
i=$(( ${i} + 1 ))
if [ "${d}" -eq "${i}" ]; then break 2; fi
done } <${devices}
done
rm ${devices}
echo "//"
read -p "// \"${device}\" will now be prepared. Continue? [y/N]: " ans
if [ -z "`echo ${ans} | grep '^ *[yY]'`" ]; then exit 1; fi
echo "//"
echo "// Formatting ${device} (ext2)"
dev=${device:0:8}
part=${device:8}
sfdisk ${dev} -N${part} <<EOF
,,L,*
EOF
mke2fs ${device}
echo "// Copying the files"
stick=/tmp/mnt
mkdir -p ${stick}
umount ${device} &>/dev/null
mount ${device} ${stick}
if [ $? != 0 ]; then
echo "ERROR: Failed to mount device, quitting"
exit 3
fi
cp -a ${CDDATA}/* ${stick}
umount ${stick}
# Convert the device and partion to grub syntax
grubdevice ()
{
## The contents of device.map look something like this:
#(fd0) /dev/fd0
#(hd0) /dev/hda
#(hd1) /dev/sda
gdev="$( cat ${AINSTALL}${dmap} | grep "${dev}" | cut -f1 | tr -d "()" )"
gpart=$(( ${part} - 1 ))
echo "// Installing GRUB to (${gdev}), root (${gdev},${gpart})"
}
dmap=/tmp/device.map
rm -f ${AINSTALL}${dmap}
if [ -n "${AINSTALL}" ]; then
# First try to get a device mapping
mount --bind /dev ${AINSTALL}/dev
echo "quit" | chroot ${AINSTALL} grub --no-floppy --device-map=${dmap} --batch
grubdevice
# Now actually install grub
# As far as I can tell, the extra options to grub are not needed here
chroot ${AINSTALL} grub --batch <<EOT
root (${gdev},${gpart})
setup (${gdev})
quit
EOT
umount ${AINSTALL}/dev
else
# First try to get a device mapping
echo "quit" | grub --no-floppy --device-map=${dmap} --batch
grubdevice
# Now actually install grub
# As far as I can tell, the extra options to grub are not needed here
grub --batch <<EOT
root (${gdev},${gpart})
setup (${gdev})
quit
EOT
fi
rm -f ${AINSTALL}${dmap}
echo "//"
echo "// Done!"
echo "// If all went well your usb stick should now be a bootable larch system"
|
