about summary refs log tree commit diff
path: root/mklive.sh.in
blob: 74dc7fbf053d26d0471915d69816dc2b07335257 (plain) (blame)
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
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
#!/bin/bash
#
# vim: set ts=4 sw=4 et:
#
#-
# Copyright (c) 2009-2014 Juan Romero Pardines.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-
set -E
trap "echo; error_out $LINENO $?" INT TERM HUP ERR

readonly REQUIRED_PKGS="base-files syslinux grub-x86_64-efi squashfs-tools xorriso"
readonly PROGNAME=$(basename $0)

info_msg() {
    printf "\033[1m$@\n\033[m"
}

error_out() {
    info_msg "There was an error in line $1 ... cleaning up $BUILDDIR, exiting."

    [ -d "$BUILDDIR" ] && rm -rf "$BUILDDIR"

    exit 1
}

usage() {
    cat <<_EOF
Usage: $(basename $0) [options]

Options:
 -a <xbps-arch>     Set XBPS_ARCH (do not use it unless you know what it is)
 -b <system-pkg>    Set an alternative base-system package (defaults to base-system).
 -r <repo-url>      Use this XBPS repository (may be specified multiple times).
 -c <cachedir>      Use this XBPS cache directory (/var/cache/xbps if unset).
 -k <keymap>        Default keymap to use (us if unset)
 -l <locale>        Default locale to use (en_US.UTF-8 if unset).
 -i <gzip|bzip2|xz> Compression type for the initramfs image (xz if unset).
 -s <gzip|bzip2|xz> Compression type for the squashfs image (xz if unset)
 -S <freesize>      Allocate this free size (MB) for the rootfs.
 -o <file>          Output file name for the ISO image (auto if unset).
 -p "pkg pkgN ..."  Install additional packages into the ISO image.

 -C "cmdline args"  Add additional kernel command line arguments.
 -T "title"         Modify the bootloader title.

The $(basename $0) script generates a live image of the Void Linux distribution.
This ISO image can be written to a CD/DVD-ROM or any USB stick.
_EOF
    exit 1
}

copy_void_keys() {
    if [ ! -d "$1"/var/db/xbps/keys ]; then
        mkdir -p "$1"/var/db/xbps/keys
        cp keys/*.plist "$1"/var/db/xbps/keys
    fi
}

install_prereqs() {
    $XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY $XBPS_CACHEDIR -y ${REQUIRED_PKGS} >> $LOGFILE 2>&1
    if [ $? -ne 0 ]; then
        info_msg "Failed to install required software, exiting..."
        error_out
    fi
}

install_packages() {
    if [ -n "$BASE_ARCH" ]; then
        export XBPS_ARCH="$BASE_ARCH"
    fi
    # Check that all pkgs are reachable.
    ${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR -yn ${PACKAGE_LIST} >>$LOGFILE 2>&1
    if [ $? -ne 0 ]; then
        info_msg "Missing required binary packages, exiting..."
        error_out
    fi
    ${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR -y ${PACKAGE_LIST} >>$LOGFILE 2>&1
    ${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR  -yu >>$LOGFILE 2>&1
    ${XBPS_REMOVE_CMD} -r $ROOTFS $XBPS_CACHEDIR -o >>$LOGFILE 2>&1

    # Enable choosen UTF-8 locale and generate it into the target rootfs.
    if [ -f $ROOTFS/etc/default/libc-locales ]; then
        sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i $ROOTFS/etc/default/libc-locales
        xbps-uchroot $ROOTFS xbps-reconfigure -f glibc-locales >>$LOGFILE 2>&1
    fi

    if [ -x installer.sh ]; then
        install -Dm755 installer.sh $ROOTFS/usr/sbin/void-installer
    else
        install -Dm755 /usr/sbin/void-installer $ROOTFS/usr/sbin/void-installer
    fi
    # Cleanup and remove useless stuff.
    rm -rf $ROOTFS/var/cache/* $ROOTFS/run/* $ROOTFS/var/run/*

    unset XBPS_ARCH
}

copy_dracut_files() {
    mkdir -p $1/usr/lib/dracut/modules.d/01vmklive
    cp dracut/*.sh $1/usr/lib/dracut/modules.d/01vmklive/
}

generate_initramfs() {
    # Install required pkgs in a temporary rootdir to create
    # the initramfs and to copy required files.
    copy_dracut_files $VOIDHOSTDIR
    $XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY $XBPS_CACHEDIR -y base-system >>$LOGFILE 2>&1

    if [ "$BASE_SYSTEM_PKG" = "base-system-systemd" ]; then
        _args="--add systemd"
    else
        _args="--omit systemd"
    fi
    xbps-uchroot $VOIDHOSTDIR /usr/bin/dracut --${INITRAMFS_COMPRESSION} \
        --force-add "vmklive busybox" ${_args} "/boot/initrd" $KERNELVERSION >>$LOGFILE 2>&1

    mv $VOIDHOSTDIR/boot/initrd $BOOT_DIR
    cp $VOIDHOSTDIR/boot/vmlinuz-$KERNELVERSION $BOOT_DIR/vmlinuz
}

generate_isolinux_boot() {
    cp -f $SYSLINUX_DATADIR/isolinux.bin "$ISOLINUX_DIR"
    cp -f $SYSLINUX_DATADIR/ldlinux.c32 "$ISOLINUX_DIR"
    cp -f $SYSLINUX_DATADIR/libcom32.c32 "$ISOLINUX_DIR"
    cp -f $SYSLINUX_DATADIR/vesamenu.c32 "$ISOLINUX_DIR"
    cp -f $SYSLINUX_DATADIR/libutil.c32 "$ISOLINUX_DIR"
    cp -f $SYSLINUX_DATADIR/chain.c32 "$ISOLINUX_DIR"
    cp -f isolinux/isolinux.cfg.in "$ISOLINUX_DIR"/isolinux.cfg
    cp -f ${SPLASH_IMAGE} "$ISOLINUX_DIR"

    sed -i  -e "s|@@SPLASHIMAGE@@|$(basename ${SPLASH_IMAGE})|" \
        -e "s|@@KERNVER@@|${KERNELVERSION}|" \
        -e "s|@@KEYMAP@@|${KEYMAP}|" \
        -e "s|@@ARCH@@|$(uname -m)|" \
        -e "s|@@LOCALE@@|${LOCALE}|" \
        -e "s|@@BOOT_TITLE@@|${BOOT_TITLE}|" \
        -e "s|@@BOOT_CMDLINE@@|${BOOT_CMDLINE}|" \
        $ISOLINUX_DIR/isolinux.cfg
}

generate_grub_efi_boot() {
    cp -f grub/grub.cfg $GRUB_DIR
    cp -f grub/grub_void.cfg.in $GRUB_DIR/grub_void.cfg
    sed -i  -e "s|@@SPLASHIMAGE@@|$(basename ${SPLASH_IMAGE})|" \
        -e "s|@@KERNVER@@|${KERNELVERSION}|" \
        -e "s|@@KEYMAP@@|${KEYMAP}|" \
        -e "s|@@ARCH@@|$(uname -m)|" \
        -e "s|@@BOOT_TITLE@@|${BOOT_TITLE}|" \
        -e "s|@@BOOT_CMDLINE@@|${BOOT_CMDLINE}|" \
        -e "s|@@LOCALE@@|${LOCALE}|" $GRUB_DIR/grub_void.cfg

    modprobe -q loop

    # Create EFI vfat image.
    dd if=/dev/zero of=$GRUB_DIR/efiboot.img bs=1024 count=4096  >>$LOGFILE 2>&1
    mkfs.vfat -F12 -S 512 -n "grub_uefi" "$GRUB_DIR/efiboot.img" >>$LOGFILE 2>&1

    GRUB_EFI_TMPDIR="$(mktemp --tmpdir=$HOME -d)"
    LOOP_DEVICE="$(losetup --show --find ${GRUB_DIR}/efiboot.img)"
    mount -o rw,flush -t vfat "${LOOP_DEVICE}" "${GRUB_EFI_TMPDIR}" >>$LOGFILE 2>&1

    cp -a $IMAGEDIR/boot $VOIDHOSTDIR
    xbps-uchroot $VOIDHOSTDIR grub-mkstandalone --directory="/usr/lib/grub/x86_64-efi" \
        --format="x86_64-efi" \
        --compression="xz" --output="/tmp/bootx64.efi" \
        "boot/grub/grub.cfg" >>$LOGFILE 2>&1
    mkdir -p ${GRUB_EFI_TMPDIR}/EFI/boot
    cp -f $VOIDHOSTDIR/tmp/bootx64.efi ${GRUB_EFI_TMPDIR}/EFI/boot/
    umount "$GRUB_EFI_TMPDIR"
    losetup --detach "${LOOP_DEVICE}"
    rm -rf $GRUB_EFI_TMPDIR
}

generate_squashfs() {
    # Find out required size for the rootfs and create an ext3fs image off it.
    ROOTFS_SIZE=$(du -sm "$ROOTFS"|awk '{print $1}')
    if [ -z "$ROOTFS_FREESIZE" ]; then
        ROOTFS_FREESIZE="$((ROOTFS_SIZE/6))"
    fi
    mkdir -p "$BUILDDIR/tmp/LiveOS"
    dd if=/dev/zero of="$BUILDDIR/tmp/LiveOS/ext3fs.img" \
        bs="$((ROOTFS_SIZE+ROOTFS_FREESIZE))M" count=1 >>$LOGFILE 2>&1
    mkdir -p "$BUILDDIR/tmp-rootfs"
    mkfs.ext3 -F -m1 "$BUILDDIR/tmp/LiveOS/ext3fs.img" >>$LOGFILE 2>&1
    mount -o loop "$BUILDDIR/tmp/LiveOS/ext3fs.img" "$BUILDDIR/tmp-rootfs"
    cp -a $ROOTFS/* $BUILDDIR/tmp-rootfs/
    umount -f "$BUILDDIR/tmp-rootfs"
    mkdir -p "$IMAGEDIR/LiveOS"

    mksquashfs "$BUILDDIR/tmp" "$IMAGEDIR/LiveOS/squashfs.img" \
        -comp ${SQUASHFS_COMPRESSION} >>$LOGFILE 2>&1
    chmod 444 "$IMAGEDIR/LiveOS/squashfs.img"
    # Remove rootfs and temporary dirs, we don't need them anymore.
    rm -rf "$ROOTFS" "$BUILDDIR/tmp-rootfs" "$BUILDDIR/tmp"
}

generate_iso_image() {
    xorriso -as mkisofs \
        -iso-level 3 -rock -joliet \
        -max-iso9660-filenames -omit-period \
        -omit-version-number -relaxed-filenames -allow-lowercase \
        -volid "VOID_LIVE" \
        -eltorito-boot boot/isolinux/isolinux.bin \
        -eltorito-catalog boot/isolinux/boot.cat \
        -no-emul-boot -boot-load-size 4 -boot-info-table \
        -eltorito-alt-boot -e boot/grub/efiboot.img -isohybrid-gpt-basdat -no-emul-boot \
        -isohybrid-mbr $SYSLINUX_DATADIR/isohdpfx.bin \
        -output "$CURDIR/$OUTPUT_FILE" "$IMAGEDIR" >>$LOGFILE 2>&1
}

#
# main()
#
while getopts "a:b:r:c:C:T:k:l:i:s:S:o:p:h" opt; do
    case $opt in
        a) BASE_ARCH="$OPTARG";;
        b) BASE_SYSTEM_PKG="$OPTARG";;
        r) XBPS_REPOSITORY+="--repository=$OPTARG ";;
        c) XBPS_CACHEDIR="--cachedir=$OPTARG";;
        k) KEYMAP="$OPTARG";;
        l) LOCALE="$OPTARG";;
        i) INITRAMFS_COMPRESSION="$OPTARG";;
        s) SQUASHFS_COMPRESSION="$OPTARG";;
        S) ROOTFS_FREESIZE="$OPTARG";;
        o) OUTPUT_FILE="$OPTARG";;
        p) PACKAGE_LIST="$OPTARG";;
        C) BOOT_CMDLINE="$OPTARG";;
        T) BOOT_TITLE="$OPTARG";;
        h) usage;;
    esac
done
shift $(($OPTIND - 1))

# Set defaults
: ${XBPS_CACHEDIR:=--cachedir=/var/cache/xbps}
: ${KEYMAP:=us}
: ${LOCALE:=en_US.UTF-8}
: ${INITRAMFS_COMPRESSION:=xz}
: ${SQUASHFS_COMPRESSION:=xz}
: ${BASE_SYSTEM_PKG:=base-system}
: ${BOOT_TITLE:="Void Linux"}

# Required packages in the image for a working system.
PACKAGE_LIST="$BASE_SYSTEM_PKG $PACKAGE_LIST"

LOGFILE="$(mktemp -t vmklive-XXXXXXXXXX.log)"

# Check for root permissions.
if [ "$(id -u)" -ne 0 ]; then
    echo "Must be run as root, exiting..."
    exit 1
fi

readonly CURDIR="$PWD"

ISO_VOLUME="VOID_LIVE"
if [ -n "$ROOTDIR" ]; then
    BUILDDIR=$(mktemp --tmpdir="$ROOTDIR" -d)
else
    BUILDDIR=$(mktemp --tmpdir="$(pwd -P)" -d)
fi
BUILDDIR=$(readlink -f $BUILDDIR)
IMAGEDIR="$BUILDDIR/image"
ROOTFS="$IMAGEDIR/rootfs"
VOIDHOSTDIR="$BUILDDIR/void-host"
BOOT_DIR="$IMAGEDIR/boot"
ISOLINUX_DIR="$BOOT_DIR/isolinux"
GRUB_DIR="$BOOT_DIR/grub"
ISOLINUX_CFG="$ISOLINUX_DIR/isolinux.cfg"

: ${XBPS_REPOSITORY:=--repository=http://repo.voidlinux.eu/current}
: ${SYSLINUX_DATADIR:=$VOIDHOSTDIR/usr/share/syslinux}
: ${SPLASH_IMAGE:=data/splash.png}
: ${XBPS_INSTALL_CMD:=xbps-install}
: ${XBPS_REMOVE_CMD:=xbps-remove}
: ${XBPS_QUERY_CMD:=xbps-query}
: ${XBPS_RINDEX_CMD:=xbps-rindex}
: ${XBPS_UHELPER_CMD:=xbps-uhelper}
: ${XBPS_RECONFIGURE_CMD:=xbps-reconfigure}

mkdir -p $ROOTFS $VOIDHOSTDIR $ISOLINUX_DIR $GRUB_DIR

info_msg "Redirecting stdout/stderr to $LOGFILE ..."
info_msg "[1/9] Synchronizing XBPS repository data..."
# Sync index for remote repos first.
copy_void_keys $ROOTFS
$XBPS_INSTALL_CMD -r $ROOTFS ${XBPS_REPOSITORY} -S
cp -a $ROOTFS/* $VOIDHOSTDIR

_linux_series=$($XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -x linux)
KERNELVERSION=$($XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -p pkgver ${_linux_series})
KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion $KERNELVERSION)

: ${OUTPUT_FILE="void-live-$(uname -m)-${KERNELVERSION}-$(date +%Y%m%d).iso"}

#
# Install required packages to generate the image.
#
info_msg "[2/9] Installing software to generate the image: ${REQUIRED_PKGS} ..."
install_prereqs

#
# Install live system and specified packages.
#
info_msg "[3/9] Installing void pkgs into the rootfs: ${PACKAGE_LIST} ..."
install_packages

mkdir -p "$ROOTFS"/etc
[ -s data/motd ] && cp data/motd $ROOTFS/etc
[ -s data/issue ] && cp data/issue $ROOTFS/etc

export PATH=$VOIDHOSTDIR/usr/bin:$VOIDHOSTDIR/usr/sbin:$PATH
export LD_LIBRARY_PATH=$VOIDHOSTDIR/usr/lib
#
# Generate the initramfs.
#
info_msg "[4/9] Generating initramfs image ($INITRAMFS_COMPRESSION)..."
generate_initramfs

#
# Generate the isolinux boot.
#
info_msg "[5/9] Generating isolinux support for PC-BIOS systems..."
generate_isolinux_boot

#
# Generate the GRUB EFI boot.
#
info_msg "[6/9] Generating GRUB support for EFI systems..."
generate_grub_efi_boot

#
# Generate the squashfs image from rootfs.
#
info_msg "[7/9] Generating squashfs image ($SQUASHFS_COMPRESSION) from rootfs..."
generate_squashfs

#
# Generate the ISO image.
#
info_msg "[8/9] Generating ISO image..."
generate_iso_image

info_msg "[9/9] Removing build directory..."
rm -rf "$BUILDDIR"

hsize=$(du -sh "$CURDIR/$OUTPUT_FILE"|awk '{print $1}')
info_msg "Created $(readlink -f $CURDIR/$OUTPUT_FILE) ($hsize) successfully."

exit 0