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
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
|
#!/bin/bash
# Convert a live CD iso so that it's bootable off of a USB stick
# Copyright 2007 Red Hat, Inc.
# Jeremy Katz <katzj@redhat.com>
#
# overlay/persistence enhancements by Douglas McClendon <dmc@viros.org>
# GPT+MBR hybrid enhancements by Stewart Adam <s.adam@diffingo.com>
#
# 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; version 2 of the License.
#
# 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
export PATH=/sbin:/usr/sbin:$PATH
usage() {
echo "$0 [--format] [--reset-mbr] [--noverify] [--overlay-size-mb <size>] [--home-size-mb <size>] [--unencrypted-home] [--skipcopy] <isopath> <usbstick device>"
exit 1
}
cleanup() {
[ -d "$CDMNT" ] && umount $CDMNT && rmdir $CDMNT
[ -d "$USBMNT" ] && umount $USBMNT && rmdir $USBMNT
}
exitclean() {
echo "Cleaning up to exit..."
cleanup
exit 1
}
getdisk() {
DEV=$1
if [[ "$DEV" =~ "/dev/loop*" ]]; then
device="$DEV"
return
fi
p=$(udevadm info -q path -n $DEV)
if [ -e /sys/$p/device ]; then
device=$(basename /sys/$p)
else
device=$(basename $(readlink -f /sys/$p/../))
fi
if [ ! -e /sys/block/$device -o ! -e /dev/$device ]; then
echo "Error finding block device of $DEV. Aborting!"
exitclean
fi
device="/dev/$device"
# FIXME: weird dev names could mess this up I guess
p=/dev/`basename $p`
partnum=${p##$device}
}
resetMBR() {
if [[ "$DEV" =~ "/dev/loop*" ]]; then
return
fi
getdisk $1
# if efi, we need to use the hybrid MBR
if [ -n "$efi" ];then
if [ -f /usr/lib/syslinux/gptmbr.bin ]; then
gptmbr='/usr/lib/syslinux/gptmbr.bin'
elif [ -f /usr/share/syslinux/gptmbr.bin ]; then
gptmbr='/usr/share/syslinux/gptmbr.bin'
else
echo "Could not find gptmbr.bin (syslinux)"
exitclean
fi
# our magic number is LBA-2, offset 16 - (512+512+16)/$bs
dd if=$device bs=16 skip=65 count=1 | cat $gptmbr - > $device
else
if [ -f /usr/lib/syslinux/mbr.bin ]; then
cat /usr/lib/syslinux/mbr.bin > $device
elif [ -f /usr/share/syslinux/mbr.bin ]; then
cat /usr/share/syslinux/mbr.bin > $device
else
echo "Could not find mbr.bin (syslinux)"
exitclean
fi
fi
}
checkMBR() {
getdisk $1
bs=$(mktemp /tmp/bs.XXXXXX)
dd if=$device of=$bs bs=512 count=1 2>/dev/null || exit 2
mbrword=$(hexdump -n 2 $bs |head -n 1|awk {'print $2;'})
rm -f $bs
if [ "$mbrword" = "0000" ]; then
echo "MBR appears to be blank."
echo "Do you want to replace the MBR on this device?"
echo "Press Enter to continue or ctrl-c to abort"
read
resetMBR $1
fi
return 0
}
checkPartActive() {
dev=$1
getdisk $dev
# if we're installing to whole-disk and not a partition, then we
# don't need to worry about being active
if [ "$dev" = "$device" ]; then
return
fi
if [[ "$dev" =~ "/dev/loop*" ]]; then
return
fi
if [ "$(/sbin/fdisk -l $device 2>/dev/null |grep $dev |awk {'print $2;'})" != "*" ]; then
echo "Partition isn't marked bootable!"
echo "You can mark the partition as bootable with "
echo " # /sbin/parted $device"
echo " (parted) toggle N boot"
echo " (parted) quit"
exitclean
fi
}
createGPTLayout() {
dev=$1
getdisk $dev
echo "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
umount ${device}? &> /dev/null
/sbin/parted --script $device mklabel gpt
partinfo=$(/sbin/parted --script -m $device "unit b print" |grep ^$device:)
size=$(echo $partinfo |cut -d : -f 2 |sed -e 's/B$//')
/sbin/parted --script $device unit b mkpart '"EFI System Partition"' fat32 17408 $(($size - 17408)) set 1 boot on
USBDEV=${device}1
# Sometimes automount can be _really_ annoying.
echo "Waiting for devices to settle..."
/sbin/udevadm settle
sleep 5
umount $USBDEV &> /dev/null
/sbin/mkdosfs -n FEDORA $USBDEV
USBLABEL="UUID=$(/lib/udev/vol_id -u $USBDEV)"
}
createMSDOSLayout() {
dev=$1
getdisk $dev
echo "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
umount ${device}? &> /dev/null
/sbin/parted --script $device mklabel msdos
partinfo=$(/sbin/parted --script -m $device "unit b print" |grep ^$device:)
size=$(echo $partinfo |cut -d : -f 2 |sed -e 's/B$//')
/sbin/parted --script $device unit b mkpart primary fat32 17408 $(($size - 17408)) set 1 boot on
USBDEV=${device}1
# Sometimes automount can be _really_ annoying.
echo "Waiting for devices to settle..."
/sbin/udevadm settle
sleep 5
umount $USBDEV &> /dev/null
/sbin/mkdosfs -n FEDORA $USBDEV
USBLABEL="UUID=$(/lib/udev/vol_id -u $USBDEV)"
}
checkGPT() {
dev=$1
getdisk $dev
if [ "$(/sbin/fdisk -l $device 2>/dev/null |grep -c GPT)" -eq "0" ]; then
echo "EFI boot requires a GPT partition table."
echo "This can be done manually or you can run with --format"
exitclean
fi
partinfo=$(/sbin/parted --script -m $device "print" |grep ^$partnum:)
volname=$(echo $partinfo |cut -d : -f 6)
flags=$(echo $partinfo |cut -d : -f 7)
if [ "$(echo $flags |grep -c boot)" = "0" ]; then
echo "Partition isn't marked bootable!"
echo "You can mark the partition as bootable with "
echo " # /sbin/parted $device"
echo " (parted) toggle N boot"
echo " (parted) quit"
exitclean
fi
}
checkFilesystem() {
dev=$1
USBFS=$(/lib/udev/vol_id -t $dev)
if [ "$USBFS" != "vfat" -a "$USBFS" != "msdos" -a "$USBFS" != "ext2" -a "$USBFS" != "ext3" ]; then
echo "USB filesystem must be vfat or ext[23]"
exitclean
fi
USBLABEL=$(/lib/udev/vol_id -u $dev)
if [ -n "$USBLABEL" ]; then
USBLABEL="UUID=$USBLABEL" ;
else
USBLABEL=$(/lib/udev/vol_id -l $dev)
if [ -n "$USBLABEL" ]; then
USBLABEL="LABEL=$USBLABEL"
else
echo "Need to have a filesystem label or UUID for your USB device"
if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
echo "Label can be set with /sbin/dosfslabel"
elif [ "$USBFS" = "ext2" -o "$USBFS" = "ext3" ]; then
echo "Label can be set with /sbin/e2label"
fi
exitclean
fi
fi
if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
mountopts="-o shortname=winnt,umask=0077"
fi
}
checkSyslinuxVersion() {
if [ ! -x /usr/bin/syslinux ]; then
echo "You need to have syslinux installed to run this script"
exit 1
fi
if ! syslinux 2>&1 | grep -qe -d; then
SYSLINUXPATH=""
elif [ -n "$multi" ]; then
SYSLINUXPATH="$LIVEOS/syslinux"
else
SYSLINUXPATH="syslinux"
fi
}
checkMounted() {
dev=$1
if grep -q "^$dev " /proc/mounts ; then
echo "$dev is mounted, please unmount for safety"
exitclean
fi
if grep -q "^$dev " /proc/swaps; then
echo "$dev is in use as a swap device, please disable swap"
exitclean
fi
}
checkint() {
if ! test $1 -gt 0 2>/dev/null ; then
usage
fi
}
if [ $(id -u) != 0 ]; then
echo "You need to be root to run this script"
exit 1
fi
cryptedhome=1
keephome=1
homesizemb=0
swapsizemb=0
overlaysizemb=0
LIVEOS=LiveOS
HOMEFILE="home.img"
while [ $# -gt 2 ]; do
case $1 in
--overlay-size-mb)
checkint $2
overlaysizemb=$2
shift
;;
--home-size-mb)
checkint $2
homesizemb=$2
shift
;;
--swap-size-mb)
checkint $2
swapsizemb=$2
shift
;;
--crypted-home)
cryptedhome=1
;;
--unencrypted-home)
cryptedhome=""
;;
--delete-home)
keephome=""
;;
--noverify)
noverify=1
;;
--reset-mbr|--resetmbr)
resetmbr=1
;;
--efi|--mactel)
efi=1
;;
--format)
format=1
;;
--skipcopy)
skipcopy=1
;;
--xo)
xo=1
skipcompress=1
;;
--xo-no-home)
xonohome=1
;;
--compress)
skipcompress=""
;;
--skipcompress)
skipcompress=1
;;
--extra-kernel-args)
kernelargs=$2
shift
;;
--force)
force=1
;;
--livedir)
LIVEOS=$2
shift
;;
--multi)
multi=1
;;
*)
echo "invalid arg -- $1"
usage
;;
esac
shift
done
ISO=$(readlink -f "$1")
USBDEV=$(readlink -f "$2")
if [ -z "$ISO" ]; then
usage
fi
if [ ! -b "$ISO" -a ! -f "$ISO" ]; then
usage
fi
# FIXME: If --format is given, we shouldn't care and just use /dev/foo1
if [ -z "$USBDEV" -o ! -b "$USBDEV" ]; then
usage
fi
if [ -z "$noverify" ]; then
# verify the image
echo "Verifying image..."
checkisomd5 --verbose "$ISO"
if [ $? -ne 0 ]; then
echo "Are you SURE you want to continue?"
echo "Press Enter to continue or ctrl-c to abort"
read
fi
fi
# do some basic sanity checks.
checkMounted $USBDEV
if [ -n "$format" ];then
# checks for a valid filesystem
if [ -n "$efi" ];then
createGPTLayout $USBDEV
else
createMSDOSLayout $USBDEV
fi
fi
checkFilesystem $USBDEV
if [ -n "$efi" ]; then
checkGPT $USBDEV
fi
checkSyslinuxVersion
# Because we can't set boot flag for EFI Protective on msdos partition tables
[ -z "$efi" ] && checkPartActive $USBDEV
[ -n "$resetmbr" ] && resetMBR $USBDEV
checkMBR $USBDEV
if [ "$overlaysizemb" -gt 0 -a "$USBFS" = "vfat" ]; then
if [ "$overlaysizemb" -gt 2047 ]; then
echo "Can't have an overlay of 2048MB or greater on VFAT"
exitclean
fi
fi
if [ "$homesizemb" -gt 0 -a "$USBFS" = "vfat" ]; then
if [ "$homesizemb" -gt 2047 ]; then
echo "Can't have a home overlay greater than 2048MB on VFAT"
exitclean
fi
fi
if [ "$swapsizemb" -gt 0 -a "$USBFS" = "vfat" ]; then
if [ "$swapsizemb" -gt 2047 ]; then
echo "Can't have a swap file greater than 2048MB on VFAT"
exitclean
fi
fi
# FIXME: would be better if we had better mountpoints
CDMNT=$(mktemp -d /media/cdtmp.XXXXXX)
mount -o loop,ro "$ISO" $CDMNT || exitclean
USBMNT=$(mktemp -d /media/usbdev.XXXXXX)
mount $mountopts $USBDEV $USBMNT || exitclean
trap exitclean SIGINT SIGTERM
if [ -f "$USBMNT/$LIVEOS/$HOMEFILE" -a -n "$keephome" -a "$homesizemb" -gt 0 ]; then
echo "ERROR: Requested keeping existing /home and specified a size for /home"
echo "Please either don't specify a size or specify --delete-home"
exitclean
fi
if [ -n "$efi" -a ! -d $CDMNT/EFI/boot ]; then
echo "ERROR: This live image does not support EFI booting"
exitclean
fi
# let's try to make sure there's enough room on the stick
if [ -d $CDMNT/LiveOS ]; then
check=$CDMNT/LiveOS
else
check=$CDMNT
fi
if [ -d $USBMNT/$LIVEOS ]; then
tbd=$(du -s -B 1M $USBMNT/$LIVEOS | awk {'print $1;'})
[ -f $USBMNT/$LIVEOS/$HOMEFILE ] && homesz=$(du -s -B 1M $USBMNT/$LIVEOS/$HOMEFILE | awk {'print $1;'})
[ -n "$homesz" -a -n "$keephome" ] && tbd=$(($tbd - $homesz))
else
tbd=0
fi
livesize=$(du -s -B 1M $check | awk {'print $1;'})
if [ -n "$skipcompress" ]; then
mount -o loop $CDMNT/LiveOS/squashfs.img $CDMNT
livesize=$(du -s -B 1M $CDMNT/LiveOS/ext3fs.img | awk {'print $1;'})
umount $CDMNT
fi
free=$(df -B1M $USBDEV |tail -n 1 |awk {'print $4;'})
if [ $(($overlaysizemb + $homesizemb + $livesize + $swapsizemb)) -gt $(($free + $tbd)) ]; then
echo "Unable to fit live image + overlay on available space on USB stick"
echo "Size of live image: $livesize"
[ "$overlaysizemb" -gt 0 ] && echo "Overlay size: $overlaysizemb"
[ "$homesizemb" -gt 0 ] && echo "Home overlay size: $homesizemb"
[ "$swapsizemb" -gt 0 ] && echo "Home overlay size: $swapsizemb"
echo "Available space: $(($free + $tbd))"
exitclean
fi
if [ -z "$skipcopy" ];then
if [ -d $USBMNT/$LIVEOS -a -z "$force" ]; then
echo "Already set up as live image."
if [ -z "$keephome" -a -e $USBMNT/$LIVEOS/$HOMEFILE ]; then
echo "WARNING: Persistent /home will be deleted!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
else
echo "Deleting old OS in fifteen seconds..."
sleep 15
[ -e "$USBMNT/$LIVEOS/$HOMEFILE" -a -n "$keephome" ] && mv $USBMNT/$LIVEOS/$HOMEFILE $USBMNT/$HOMEFILE
fi
rm -rf $USBMNT/$LIVEOS
fi
fi
# Bootloader is always reconfigured, so keep these out of the if skipcopy stuff.
[ ! -d $USBMNT/$SYSLINUXPATH ] && mkdir -p $USBMNT/$SYSLINUXPATH
[ -n "$efi" -a ! -d $USBMNT/EFI/boot ] && mkdir -p $USBMNT/EFI/boot
if [ -z "$skipcopy" ];then
echo "Copying live image to USB stick"
[ ! -d $USBMNT/$LIVEOS ] && mkdir $USBMNT/$LIVEOS
[ -n "$keephome" -a -f "$USBMNT/$HOMEFILE" ] && mv $USBMNT/$HOMEFILE $USBMNT/$LIVEOS/$HOMEFILE
if [ -n "$skipcompress" -a -f $CDMNT/LiveOS/squashfs.img ]; then
mount -o loop $CDMNT/LiveOS/squashfs.img $CDMNT
cp $CDMNT/LiveOS/ext3fs.img $USBMNT/$LIVEOS/ext3fs.img || (umount $CDMNT ; exitclean)
umount $CDMNT
elif [ -f $CDMNT/LiveOS/squashfs.img ]; then
cp $CDMNT/LiveOS/squashfs.img $USBMNT/$LIVEOS/squashfs.img || exitclean
elif [ -f $CDMNT/LiveOS/ext3fs.img ]; then
cp $CDMNT/LiveOS/ext3fs.img $USBMNT/$LIVEOS/ext3fs.img || exitclean
fi
if [ -f $CDMNT/LiveOS/osmin.img ]; then
cp $CDMNT/LiveOS/osmin.img $USBMNT/$LIVEOS/osmin.img || exitclean
fi
fi
cp $CDMNT/isolinux/* $USBMNT/$SYSLINUXPATH
BOOTCONFIG=$USBMNT/$SYSLINUXPATH/isolinux.cfg
# Set this to nothing so sed doesn't care
BOOTCONFIG_EFI=
if [ -n "$efi" ];then
cp $CDMNT/EFI/boot/* $USBMNT/EFI/boot
# this is a little ugly, but it gets the "interesting" named config file
BOOTCONFIG_EFI=$USBMNT/EFI/boot/boot?*.conf
rm -f $USBMNT/EFI/boot/grub.conf
fi
echo "Updating boot config file"
# adjust label and fstype
sed -i -e "s/CDLABEL=[^ ]*/$USBLABEL/" -e "s/rootfstype=[^ ]*/rootfstype=$USBFS/" $BOOTCONFIG $BOOTCONFIG_EFI
if [ -n "$kernelargs" ]; then sed -i -e "s/liveimg/liveimg ${kernelargs}/" $BOOTCONFIG $BOOTCONFIG_EFI ; fi
if [ "$LIVEOS" != "LiveOS" ]; then sed -i -e "s;liveimg;liveimg live_dir=$LIVEOS;" $BOOTCONFIG $BOOTCONFIG_EFI ; fi
if [ "$overlaysizemb" -gt 0 ]; then
echo "Initializing persistent overlay file"
OVERFILE="overlay-$( /lib/udev/vol_id -l $USBDEV )-$( /lib/udev/vol_id -u $USBDEV )"
if [ "$USBFS" = "vfat" ]; then
# vfat can't handle sparse files
dd if=/dev/zero of=$USBMNT/$LIVEOS/$OVERFILE count=$overlaysizemb bs=1M
else
dd if=/dev/null of=$USBMNT/$LIVEOS/$OVERFILE count=1 bs=1M seek=$overlaysizemb
fi
sed -i -e "s/liveimg/liveimg overlay=${USBLABEL}/" $BOOTCONFIG $BOOTCONFIG_EFI
sed -i -e "s/\ ro\ /\ rw\ /" $BOOTCONFIG $BOOTCONFIG_EFI
fi
if [ "$swapsizemb" -gt 0 ]; then
echo "Initializing swap file"
dd if=/dev/zero of=$USBMNT/$LIVEOS/swap.img count=$swapsizemb bs=1M
mkswap -f $USBMNT/$LIVEOS/swap.img
fi
if [ "$homesizemb" -gt 0 ]; then
echo "Initializing persistent /home"
homesource=/dev/zero
[ -n "$cryptedhome" ] && homesource=/dev/urandom
if [ "$USBFS" = "vfat" ]; then
# vfat can't handle sparse files
dd if=${homesource} of=$USBMNT/$LIVEOS/$HOMEFILE count=$homesizemb bs=1M
else
dd if=/dev/null of=$USBMNT/$LIVEOS/$HOMEFILE count=1 bs=1M seek=$homesizemb
fi
if [ -n "$cryptedhome" ]; then
loop=$(losetup -f)
losetup $loop $USBMNT/$LIVEOS/$HOMEFILE
setupworked=1
until [ ${setupworked} == 0 ]; do
echo "Encrypting persistent /home"
cryptsetup luksFormat -y -q $loop
setupworked=$?
done
setupworked=1
until [ ${setupworked} == 0 ]; do
echo "Please enter the password again to unlock the device"
cryptsetup luksOpen $loop EncHomeFoo
setupworked=$?
done
mke2fs -j /dev/mapper/EncHomeFoo
tune2fs -c0 -i0 -ouser_xattr,acl /dev/mapper/EncHomeFoo
cryptsetup luksClose EncHomeFoo
losetup -d $loop
else
echo "Formatting unencrypted /home"
mke2fs -F -j $USBMNT/$LIVEOS/$HOMEFILE
tune2fs -c0 -i0 -ouser_xattr,acl $USBMNT/$LIVEOS/$HOMEFILE
fi
fi
# create the forth files for booting on the XO if requested
# we'd do this unconditionally, but you have to have a kernel that will
# boot on the XO anyway.
if [ -n "$xo" ]; then
echo "Setting up /boot/olpc.fth file"
args=$(egrep "^[ ]*append" $USBMNT/$SYSLINUXPATH/isolinux.cfg |head -n1 |sed -e 's/.*initrd=[^ ]*//')
if [ -z "$xonohome" -a ! -f $USBMNT/$LIVEOS/$HOMEFILE ]; then
args="$args persistenthome=mtd0"
fi
args="$args reset_overlay"
xosyspath=$(echo $SYSLINUXPATH | sed -e 's;/;\\;')
if [ ! -d $USBMNT/boot ]; then mkdir -p $USBMNT/boot ; fi
cat > $USBMNT/boot/olpc.fth <<EOF
\ Boot script for USB boot
hex rom-pa fffc7 + 4 \$number drop h# 2e19 < [if]
patch 2drop erase claim-params
: high-ramdisk ( -- )
cv-load-ramdisk
h# 22c +lp l@ 1+ memory-limit umin /ramdisk - ffff.f000 and ( new-ramdisk-adr )
ramdisk-adr over /ramdisk move ( new-ramdisk-adr )
to ramdisk-adr
;
' high-ramdisk to load-ramdisk
[then]
: set-bootpath-dev ( -- )
" /chosen" find-package if ( phandle )
" bootpath" rot get-package-property 0= if ( propval$ )
get-encoded-string ( bootpath$ )
[char] \ left-parse-string 2nip ( dn$ )
dn-buf place ( )
then
then
" /sd" dn-buf count sindex 0>= if
" sd:"
else
" u:"
then
" BOOTPATHDEV" \$set-macro
;
set-bootpath-dev
" $args" to boot-file
" \${BOOTPATHDEV}$xosyspath\initrd0.img" expand$ to ramdisk
" \${BOOTPATHDEV}$xosyspath\vmlinuz0" expand$ to boot-device
unfreeze
boot
EOF
fi
if [ -z "$multi" ]; then
echo "Installing boot loader"
if [ -n "$efi" ]; then
# replace the ia32 hack
if [ -f "$USBMNT/EFI/boot/boot.conf" ]; then cp -f $USBMNT/EFI/boot/bootia32.conf $USBMNT/EFI/boot/boot.conf ; fi
fi
# this is a bit of a kludge, but syslinux doesn't guarantee the API for its com32 modules :/
if [ -f $USBMNT/$SYSLINUXPATH/vesamenu.c32 -a -f /usr/share/syslinux/vesamenu.c32 ]; then
cp /usr/share/syslinux/vesamenu.c32 $USBMNT/$SYSLINUXPATH/vesamenu.c32
elif [ -f $USBMNT/$SYSLINUXPATH/vesamenu.c32 -a -f /usr/lib/syslinux/vesamenu.c32 ]; then
cp /usr/lib/syslinux/vesamenu.c32 $USBMNT/$SYSLINUXPATH/vesamenu.c32
elif [ -f $USBMNT/$SYSLINUXPATH/menu.c32 -a -f /usr/share/syslinux/menu.c32 ]; then
cp /usr/share/syslinux/menu.c32 $USBMNT/$SYSLINUXPATH/menu.c32
elif [ -f $USBMNT/$SYSLINUXPATH/menu.c32 -a -f /usr/lib/syslinux/menu.c32 ]; then
cp /usr/lib/syslinux/menu.c32 $USBMNT/$SYSLINUXPATH/menu.c32
fi
if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
# syslinux expects the config to be named syslinux.cfg
# and has to run with the file system unmounted
mv $USBMNT/$SYSLINUXPATH/isolinux.cfg $USBMNT/$SYSLINUXPATH/syslinux.cfg
# deal with mtools complaining about ldlinux.sys
if [ -f $USBMNT/$SYSLINUXPATH/ldlinux.sys ] ; then rm -f $USBMNT/$SYSLINUXPATH/ldlinux.sys ; fi
cleanup
if [ -n "$SYSLINUXPATH" ]; then
syslinux -d $SYSLINUXPATH $USBDEV
else
syslinux $USBDEV
fi
elif [ "$USBFS" = "ext2" -o "$USBFS" = "ext3" ]; then
# extlinux expects the config to be named extlinux.conf
# and has to be run with the file system mounted
mv $USBMNT/$SYSLINUXPATH/isolinux.cfg $USBMNT/$SYSLINUXPATH/extlinux.conf
extlinux -i $USBMNT/$SYSLINUXPATH
cleanup
fi
else
# we need to do some more config file tweaks for multi-image mode
sed -i -e "s;kernel vm;kernel $LIVEOS/syslinux/vm;" $USBMNT/$SYSLINUXPATH/isolinux.cfg
sed -i -e "s;initrd i;initrd $LIVEOS/syslinux/i;" $USBMNT/$SYSLINUXPATH/isolinux.cfg
mv $USBMNT/$SYSLINUXPATH/isolinux.cfg $USBMNT/$SYSLINUXPATH/syslinux.cfg
cleanup
fi
echo "USB stick set up as live image!"
|