summaryrefslogtreecommitdiff
path: root/archiso/mkarchiso
blob: 193c51af55f1722db0fac00025ad1ef893d28038 (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
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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
#!/bin/bash

CPIOCONFIG="$(pwd)/archiso-mkinitcpio.conf"
DEF_CONFIG_DIR="$(pwd)/overlay"
PKGFILE="$(pwd)/packages.list"
PKGLIST=""
QUIET="y"
FORCE="n"
ADDON_DIR=""

command_name=""
work_dir=""
imgname=""

APPNAME=$(basename "${0}")

# usage: usage <exitvalue>
usage ()
{
    echo "usage ${APPNAME} [options] command <command options>"
    echo " general options:"
    echo "    -f               Force overwrite of working files/squashfs image/bootable image"
    echo "    -i CPIO_CONFIG   Use CONFIG file for mkinitcpio. default: ${CPIOCONFIG}"
    echo "    -P PKGFILE       File with list of packages to install. default: ${PKGFILE}"
    echo "    -p PACKAGE       Additional package to install, can be used multiple times"
    echo "    -a ADDON_DIR     Use addons from DIR. default: none"
    echo "    -t <iso,disk>    Type of image to create. Defaults to iso."
    echo "    -v               Enable verbose output."
    echo "    -h               This message."
    echo " commands:"
    echo " install <working dir>          : where to build the image root"
    echo " squash <working dir>           : generate a squashfs image of the installed root"
    echo " img <working dir> <image name> : build an image from the working directory"
    echo " all <working dir> <image name> : perform all of the above, in order"
    exit $1
}

while getopts 'i:P:p:a:t:fvh' arg; do
    case "${arg}" in
        i) CPIOCONFIG="${OPTARG}" ;;
        P) PKGFILE="${OPTARG}" ;;
        p) PKGLIST="${PKGLIST} ${OPTARG}" ;;
        a) ADDON_DIR="${OPTARG}" ;;
        t) IMG_TYPE="${OPTARG}" ;;
        f) FORCE="y" ;;
        v) QUIET="n" ;;
        h|?) usage 0 ;;
        *) echo "invalid argument '${arg}'"; usage 1 ;;
    esac
done

shift $(($OPTIND - 1))
echo "ARGS: $@"

[ $# -le 1 ] && usage 1

# do UID checking here so someone can at least get usage instructions
if [ "$EUID" != "0" ]; then
    echo "error: This script must be run as root."
    exit 1
fi

command_name="${1}"
case "${command_name}" in
    install) work_dir="${2}" ;;
    squash) work_dir="${2}" ;;
    img) work_dir="${2}"; imgname="${3}" ;;
    all) work_dir="${2}"; imgname="${3}" ;;
    *) echo "invalid command name '${command_name}'"; usage 1 ;;
esac

[ "x${work_dir}" = "x" ] && (echo "please specify a working directory" && usage 1)

imgroot="${work_dir}/img"
instroot="${work_dir}/install"

_kversion ()
{
    source ${instroot}/etc/mkinitcpio.d/kernel26.kver
    echo ${ALL_kver}
}

# usage: _pacman <packages>...
_pacman ()
{
    local ret
    if [ "${QUIET}" = "y" ]; then
        mkarchroot -f ${instroot} $* 2>&1 >/dev/null
        ret=$?
    else
        mkarchroot -f ${instroot} $*
        ret=$?
    fi
    if [ $ret -ne 0 ]; then
        exit 1
    fi
}

# usage: install_pkgfile <packagesfile>
install_pkgfile ()
{
    if [ -e "${1}" ]; then
        toinstall=""
        while read pkg; do
            toinstall="${toinstall} ${pkg}"
        done < ${1}
        _pacman "${toinstall}"
    else
        echo "error: Package file '${1}' does not exist, aborting."
        exit 1
    fi
}

# Go through the main commands in order. If 'all' was specified, then we want
# to do everything. Start with 'install'.
if [ "${command_name}" = "install" -o "${command_name}" = "all" ]; then
    echo "====> Installing/building image root"
    if [ -e "${work_dir}" -a "${FORCE}" = "n" ]; then
        echo "error: Working dir '${work_dir}' already exists, aborting."
        exit 1
    fi

    mkdir -p "${imgroot}"
    mkdir -p "${instroot}"

    echo "Installing packages..."
    echo " Installing packages from '${PKGFILE}'"
    install_pkgfile "${PKGFILE}"

    for pkg in ${PKGLIST}; do
        echo "   Installing package '${pkg}'"
        _pacman "${pkg}"
    done

    echo "Updating kernel module dependencies"
    kernelver=$(_kversion)
    depmod -a -b "${instroot}" "${kernelver}"
    # remove the initcpio images that were generated for the host system
    find "${instroot}/boot" -name *.img -delete

    echo "Creating default home directory"
    install -d -o1000 -g100 -m0755 "${instroot}/home/arch"

    # Cleanup
    echo "Cleaning up image root files..."
    find "${instroot}" -name *.pacnew -name *.pacsave -name *.pacorig -delete

    # delete a lot of unnecessary cache/log files
    kill_dirs="var/abs var/cache/man var/cache/pacman var/log/* var/mail tmp/* initrd"
    for x in ${kill_dirs}; do
        if [ -e "${instroot}/${x}" ]; then
            rm -rf "${instroot}/${x}"
        fi
    done

    # pacman DBs are big, delete all sync dbs
    rm -rf "${instroot}/var/lib/pacman/sync"

    # copy over kernel and grub configs for boot
    if [ -e "${instroot}/boot" -a -e "${DEF_CONFIG_DIR}/boot" ]; then
        rm -rf "${imgroot}/boot"
        cp -r "${instroot}/boot" "${imgroot}"
        cp -rf "${DEF_CONFIG_DIR}/boot" "${imgroot}"
    fi

    # TODO: this might belong somewhere else
    mkdir -p "${imgroot}/addons"
    if [ -d "${ADDON_DIR}" ]; then
        echo "Copying addons from ${ADDON_DIR}..."
        cp -r ${ADDON_DIR}/* "${imgroot}/addons"
    fi

    # always make an addon out of DEF_CONFIG_DIR
    echo "Creating default overlay..."
    if [ "${QUIET}" = "y" ]; then
        mksquashfs "${DEF_CONFIG_DIR}" "${imgroot}/addons/overlay.sqfs" -noappend >/dev/null
    else
        mksquashfs "${DEF_CONFIG_DIR}" "${imgroot}/addons/overlay.sqfs" -noappend
    fi
fi

# Squash is the next step.
if [ "${command_name}" = "squash" -o "${command_name}" = "all" ]; then
    echo "====> Generating SquashFS image"
    imagename="${imgroot}/archlive.sqfs"
    if [ -e "${imagename}" ]; then
        if [ "${FORCE}" = "y" ]; then
            echo -n "Removing old SquashFS image..."
            rm "${imagename}"
            echo "done."
        else
            echo "error: SquashFS image '${imagename}' already exists, aborting."
            exit 1
        fi
    fi

    echo "Creating squashfs image. This may take some time..."
    start=$(date +%s)
    if [ "${QUIET}" = "y" ]; then
        mksquashfs "${instroot}" "${imagename}" -noappend >/dev/null
    else
        mksquashfs "${instroot}" "${imagename}" -noappend
    fi
    minutes=$(echo $start $(date +%s) | awk '{ printf "%0.2f",($2-$1)/60 }')
    echo "Image creation done in $minutes minutes."
fi

# Finally, make the image.
if [ "${command_name}" = "img" -o "${command_name}" = "all" ]; then
    echo "====> Making bootable image"
    [ "x${imgname}" = "x" ] && (echo "Bootable image name must be specified" && usage 1)
    if [ -e "${imgname}" ]; then
        if [ "${FORCE}" = "y" ]; then
            echo "Removing existing bootable image..."
            rm -rf "${imgname}"
        else
            echo "error: Image '${imgname}' already exists, aborting."
            exit 1
        fi
    fi
    if [ ! -e "${CPIOCONFIG}" ]; then
        echo "error: mkinitcpio config '${CPIOCONFIG}' does not exist, aborting."
        exit 1
    fi

    kernelver=$(_kversion)
    basedir=${instroot}
    [ "${instroot:0:1}" != "/" ] && basedir="$(pwd)/${instroot}"
    echo "Generating initcpio for image..."
    if [ "${QUIET}" = "y" ]; then
        mkinitcpio -c "${CPIOCONFIG}" -b "${basedir}" -k "${kernelver}" -g "${imgroot}/boot/archlive.img" >/dev/null
        ret=$?
    else
        mkinitcpio -c "${CPIOCONFIG}" -b "${basedir}" -k "${kernelver}" -g "${imgroot}/boot/archlive.img"
        ret=$?
    fi
    if [ $ret -ne 0 ]; then
        echo "error: initcpio image creation failed..."
        exit 1
    fi

    cp ${instroot}/usr/lib/grub/i386-pc/* "${imgroot}/boot/grub"

    if [ "x$IMG_TYPE" == "xdisk" ]; then
        echo "Creating DISK image..."
        mkusbimg "${imgroot}" "${imgname}"
    else
        echo "Creating ISO image..."
        q=""
        [ "${QUIET}" = "y" ] && qflag="-q"
        mkisofs ${qflag} -r -l -b "boot/grub/stage2_eltorito" -uid 0 -gid 0 \
            -no-emul-boot -boot-load-size 4 -boot-info-table \
            -publisher "Arch Linux <archlinux.org>" \
            -input-charset=UTF-8 -p "prepared by $NAME" \
            -A "Arch Linux Live/Rescue CD" \
            -o "${imgname}" "${imgroot}"
    fi
fi

# vim:ts=4:sw=4:et: