trunk/mkinitrd/mkinitrd-livecd.sh

#!/bin/bash
# $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd-livecd.sh,v 1.2 2006-02-23 15:55:08 niro Exp $

# mkinitrd-livecd
#
# Copyright 2005 Red Hat, Inc.
#
# Written by Erik Troan <ewt@redhat.com>
#
# Contributors:
#	Elliot Lee <sopwith@cuc.edu>
#	Miguel de Icaza <miguel@nuclecu.unam.mx>
#	Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de>
#	Michael K. Johnson <johnsonm@redhat.com>
#	Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr>
#	Jakub Jelinek <jakub@redhat.com>
#	Carlo Arenas Belon (carenas@chasqui.lared.net.pe>
#	Keith Owens <kaos@ocs.com.au>
#	Bernhard Rosenkraenzer <bero@redhat.com>
#	Matt Wilson <msw@redhat.com>
#       Trond Eivind Glomsrød <teg@redhat.com>
#       Jeremy Katz <katzj@redhat.com>
#       Preston Brown <pbrown@redhat.com>
#	Bill Nottingham <notting@redhat.com>
#       Guillaume Cottenceau <gc@mandrakesoft.com>
#	Peter Jones <pjones@redhat.com>

# heavily modified for magellan-linux by Niels Rogalla <niro@magellan-linux.de>

umask 0022
export MALLOC_PERTURB_=204

PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH
export PATH

VERSION=5.0.8

MODULES=""
NOSTRIP=false

[ -e /etc/conf.d/mkinitrd-livecd ] && . /etc/conf.d/mkinitrd-livecd

LINUXRC="/usr/lib/mkinitrd/linuxrc.sh"
MODULES_GENERIC="/usr/lib/mkinitrd/modules.generic"
MODULES_USB="/usr/lib/mkinitrd/modules.usb"
MODULES_SCSI="/usr/lib/mkinitrd/modules.scsi"
MODULES_SATA="/usr/lib/mkinitrd/modules.sata"

compress=1
allowmissing=""
target=""
kernel=""
force=""
verbose=""
img_vers=""
builtins=""
modulefile=/etc/modules.conf
rc=0

IMAGESIZE=4000
PRESCSIMODS="sd_mod"
fstab="/etc/fstab"

vg_list=""

die() { echo "Error: $@"; exit 1; }
add_initrd() { echo "$@" >> ${DEST}/init || die; }

DEST="$(mktemp -d)"
IMAGE="$(mktemp)"

usage()
{
	echo "usage: $(basename $0) [--version] [--help] [-v] [-f]"
	echo "       [--image-version] [--no-strip] [--nocompress]"
	echo "        <initrd-image> <kernel-version>"
	echo
	echo "       (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"

	exit 0
}

moduledep()
{
	if [ ! -f "/lib/modules/${kernel}/modules.dep" ]
	then
		die "No dep file found for kernel ${kernel}"
	fi

	echo "Looking for deps of module $1"
	deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \
		function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \
		function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \
		/^\/lib/ { show(); \
			orig=modname($1); dep=""; \
			if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \
		/^	/ { dep=sprintf("%s %s", dep, modname($1));  } \
		END      { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1)
	[ -n "${deps}" ] && echo ":${deps}" || echo
}

findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; }
findall() { /usr/bin/find "$@"; }

findmodule()
{
	skiperrors=""

	if [[ $1 = --skiperrors ]]
	then
		skiperrors=--skiperrors
		shift
	fi

	local modName=$1

	if [ "${modName}" = "off" -o "${modName}" = "null" ]
	then
		return
	fi

	if [ $(echo ${modName} | cut -b1) = "-" ]
	then
		skiperrors=--skiperrors
		modName=$(echo ${modName} | cut -b2-)
	fi

	case "${MODULES} " in
		*"/${modName}.ko "*) return ;;
	esac

	if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)'
	then
		echo "module ${modName} assumed to be built in"
		return
	fi

	# special cases
	if [[ ${modName} = i2o_block ]]
	then
		findmodule i2o_core
		findmodule -i2o_pci
		modName="i2o_block"
	elif [[ ${modName} = ppa ]]
	then
		findmodule parport
		findmodule parport_pc
		modName="ppa"
	elif [[ ${modName} = sbp2 ]]
	then
		findmodule ieee1394
		findmodule ohci1394
		modName="sbp2"
	else
		moduledep ${modName}
		for i in ${deps}
		do
			findmodule ${i}
		done
	fi

	for modExt in o.gz o ko
	do
		for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel}
		do
			if [ -d ${modDir} ]
			then
				fmPath=$(findone ${modDir} -name ${modName}.${modExt})
				if [ -f "${fmPath}" ]
				then
					break 2
				fi
			fi
		done
	done

	if [ ! -f ${fmPath} ]
	then
		if [ -n "${skiperrors}" ]
		then
			return
		fi

		# ignore the absence of the scsi modules
		for n in ${PRESCSIMODS}
		do
			if [[ ${n} = ${modName} ]]
			then
				return
			fi
		done

		if [ -n "${allowmissing}" ]
		then
			echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway"
			return
		fi

		die "No module ${modName} found for kernel ${kernel}, aborting."
	fi

	# only need to add each module once
	MODULES="${MODULES} ${fmPath}"
}

install_kernel_modules()
{
	local list="$1"
	local module

	while read module args
	do
		case "${module}" in
			\#*|"") continue ;;
		esac

		findmodule ${module}
	done << EOF
$(cat ${list}; echo)
EOF

	# create empty modules.lala file
	:> ${DEST}/etc/$(basename ${list})

	# install detected modules
	echo "Coping your modules to '${DEST}/lib' ..."
	for MODULE in ${MODULES}
	do
		if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]]
		then
			/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die
		else
			cp ${verbose} -a ${MODULE} ${DEST}/lib || die
		fi

		# generate modules load file
		echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die
	done

	export ALL_MODULES="${ALL_MODULES} ${MODULES}"
	unset MODULES
}

# need r00t privs
[[ $(id -u) != 0 ]] && die "you must be r00t."

# enforce initramfs method as default
[[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs

while [ $# -gt 0 ]; do
	case $1 in
		--version)
			echo "mkinitrd: version ${VERSION}"
			exit 0
			;;

		-v) verbose=-v ;;
		-f) force=1 ;;
		--nocompress) compress="" ;;
		--image-version) img_vers=yes ;;
		--allow-missing) allowmissing=yes ;;
		--noresume) noresume=1 ;;
		--help) usage -n ;;
		--initramfs) IMAGE_TYPE=initramfs ;;
		--loopback) IMAGE_TYPE=loopback ;;
		--no-strip) NOSTRIP=true ;;
		*)
			if [ -z "${target}" ]
			then
				target=$1
			elif [ -z "${kernel}" ]
			then
				kernel=$1
			else
				usage
			fi
			;;
	esac

	shift
done


# create basic filesystem layout
install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die

# install busybox
echo "$(which busybox.mkinitrd)"
install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die
for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \
	grep gunzip gzip init ln ls loadkmap losetup mkdir mknod modprobe more mount mv \
	pivot_root ps pwd rm rmdir sh sleep test touch true umount uname \
	xargs yes chmod chown
do
	# static links
	ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}"
done

# install run-init
echo "$(which run-init.mkinitrd)"
install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die

# install insmod.static
echo "$(which insmod.static)"
install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die

# install udev
cp -a /etc/udev ${DEST}/etc || die
install -m0755 /sbin/udev.static ${DEST}/bin/udev || die
install -m0755 /sbin/udevd.static ${DEST}/bin/udevd || die
install -m0755 /sbin/udevstart.static ${DEST}/bin/udevstart || die

# create some needed device nodes
mkdir ${DEST}/dev/mapper || die
mknod ${DEST}/dev/console c 5 1 || die
mknod ${DEST}/dev/null c 1 3 || die
mknod ${DEST}/dev/ram b 1 1 || die
mknod ${DEST}/dev/rtc c 10 135 || die
mknod ${DEST}/dev/systty c 4 0 || die
mknod ${DEST}/dev/tty c 5 0 || die
mknod ${DEST}/dev/zero c 1 5 || die
for ((i=0; i < 13; i++))
do
	mknod ${DEST}/dev/tty${i} c 4 ${i} || die "tty${i}"
done
for ((i=64; i < 68; i++))
do
	mknod ${DEST}/dev/ttyS$((${i} - 64)) c 4 ${i} || die "ttyS$((${i} - 64))"
done

## install kernel modules ##
# generic needed
install_kernel_modules "${MODULES_GENERIC}"

# usb
install_kernel_modules "${MODULES_USB}"

# scsi
install_kernel_modules "${MODULES_SCSI}"

# sata
install_kernel_modules "${MODULES_SATA}"

# show all modules
for i in ${ALL_MODULES}
do
	echo ${i}
done

# install linuxrc
install -m0755 ${LINUXRC} ${DEST}/init || die

# create the image
echo "Creating initrd image '${target}' ..."
if [[ ${IMAGE_TYPE} = initramfs ]]
then
	(cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE})
	cat ${IMAGE} > ${target} || die
fi

if [[ ${IMAGE_TYPE} = loopback ]]
then
	MOUNTTMP="$(mktemp -d)"

	# create ext2 img
	dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die
	mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die
	mount -o loop ${IMAGE} ${MOUNTTMP} || die
	mv ${DEST}/* ${MOUNTTMP} || die
	umount ${MOUNTTMP} || die
	gzip -9 ${IMAGE} || die
	cat ${IMAGE}.gz > ${target} || die
	[ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}

	# create inird dir for pivot_root
	[ ! -d /initrd ] && { install -d /initrd || die; }
fi

# clean up
[ -d ${DEST} ] && rm -rf ${DEST}
[ -f ${IMAGE} ] && rm -f ${IMAGE}

# all went ok at this point
exit 0
1	#!/bin/bash
2	# $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd-livecd.sh,v 1.2 2006-02-23 15:55:08 niro Exp $
3
4	# mkinitrd-livecd
5	#
6	# Copyright 2005 Red Hat, Inc.
7	#
8	# Written by Erik Troan <ewt@redhat.com>
9	#
10	# Contributors:
11	# Elliot Lee <sopwith@cuc.edu>
12	# Miguel de Icaza <miguel@nuclecu.unam.mx>
13	# Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de>
14	# Michael K. Johnson <johnsonm@redhat.com>
15	# Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr>
16	# Jakub Jelinek <jakub@redhat.com>
17	# Carlo Arenas Belon (carenas@chasqui.lared.net.pe>
18	# Keith Owens <kaos@ocs.com.au>
19	# Bernhard Rosenkraenzer <bero@redhat.com>
20	# Matt Wilson <msw@redhat.com>
21	# Trond Eivind Glomsrød <teg@redhat.com>
22	# Jeremy Katz <katzj@redhat.com>
23	# Preston Brown <pbrown@redhat.com>
24	# Bill Nottingham <notting@redhat.com>
25	# Guillaume Cottenceau <gc@mandrakesoft.com>
26	# Peter Jones <pjones@redhat.com>
27
28	# heavily modified for magellan-linux by Niels Rogalla <niro@magellan-linux.de>
29
30	umask 0022
31	export MALLOC_PERTURB_=204
32
33	PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH
34	export PATH
35
36	VERSION=5.0.8
37
38	MODULES=""
39	NOSTRIP=false
40
41	[ -e /etc/conf.d/mkinitrd-livecd ] && . /etc/conf.d/mkinitrd-livecd
42
43	LINUXRC="/usr/lib/mkinitrd/linuxrc.sh"
44	MODULES_GENERIC="/usr/lib/mkinitrd/modules.generic"
45	MODULES_USB="/usr/lib/mkinitrd/modules.usb"
46	MODULES_SCSI="/usr/lib/mkinitrd/modules.scsi"
47	MODULES_SATA="/usr/lib/mkinitrd/modules.sata"
48
49	compress=1
50	allowmissing=""
51	target=""
52	kernel=""
53	force=""
54	verbose=""
55	img_vers=""
56	builtins=""
57	modulefile=/etc/modules.conf
58	rc=0
59
60	IMAGESIZE=4000
61	PRESCSIMODS="sd_mod"
62	fstab="/etc/fstab"
63
64	vg_list=""
65
66	die() { echo "Error: $@"; exit 1; }
67	add_initrd() { echo "$@" >> ${DEST}/init \|\| die; }
68
69	DEST="$(mktemp -d)"
70	IMAGE="$(mktemp)"
71
72	usage()
73	{
74	echo "usage: $(basename $0) [--version] [--help] [-v] [-f]"
75	echo " [--image-version] [--no-strip] [--nocompress]"
76	echo " <initrd-image> <kernel-version>"
77	echo
78	echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"
79
80	exit 0
81	}
82
83	moduledep()
84	{
85	if [ ! -f "/lib/modules/${kernel}/modules.dep" ]
86	then
87	die "No dep file found for kernel ${kernel}"
88	fi
89
90	echo "Looking for deps of module $1"
91	deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \
92	function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \
93	function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \
94	/^\/lib/ { show(); \
95	orig=modname($1); dep=""; \
96	if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \
97	/^ / { dep=sprintf("%s %s", dep, modname($1)); } \
98	END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1)
99	[ -n "${deps}" ] && echo ":${deps}" \|\| echo
100	}
101
102	findone() { /usr/bin/find "$@" \| /bin/awk '{ print $1; exit; }'; }
103	findall() { /usr/bin/find "$@"; }
104
105	findmodule()
106	{
107	skiperrors=""
108
109	if [[ $1 = --skiperrors ]]
110	then
111	skiperrors=--skiperrors
112	shift
113	fi
114
115	local modName=$1
116
117	if [ "${modName}" = "off" -o "${modName}" = "null" ]
118	then
119	return
120	fi
121
122	if [ $(echo ${modName} \| cut -b1) = "-" ]
123	then
124	skiperrors=--skiperrors
125	modName=$(echo ${modName} \| cut -b2-)
126	fi
127
128	case "${MODULES} " in
129	"/${modName}.ko ") return ;;
130	esac
131
132	if echo ${builtins} \| egrep -q '(^\| )'${modName}'( \|$)'
133	then
134	echo "module ${modName} assumed to be built in"
135	return
136	fi
137
138	# special cases
139	if [[ ${modName} = i2o_block ]]
140	then
141	findmodule i2o_core
142	findmodule -i2o_pci
143	modName="i2o_block"
144	elif [[ ${modName} = ppa ]]
145	then
146	findmodule parport
147	findmodule parport_pc
148	modName="ppa"
149	elif [[ ${modName} = sbp2 ]]
150	then
151	findmodule ieee1394
152	findmodule ohci1394
153	modName="sbp2"
154	else
155	moduledep ${modName}
156	for i in ${deps}
157	do
158	findmodule ${i}
159	done
160	fi
161
162	for modExt in o.gz o ko
163	do
164	for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel}
165	do
166	if [ -d ${modDir} ]
167	then
168	fmPath=$(findone ${modDir} -name ${modName}.${modExt})
169	if [ -f "${fmPath}" ]
170	then
171	break 2
172	fi
173	fi
174	done
175	done
176
177	if [ ! -f ${fmPath} ]
178	then
179	if [ -n "${skiperrors}" ]
180	then
181	return
182	fi
183
184	# ignore the absence of the scsi modules
185	for n in ${PRESCSIMODS}
186	do
187	if [[ ${n} = ${modName} ]]
188	then
189	return
190	fi
191	done
192
193	if [ -n "${allowmissing}" ]
194	then
195	echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway"
196	return
197	fi
198
199	die "No module ${modName} found for kernel ${kernel}, aborting."
200	fi
201
202	# only need to add each module once
203	MODULES="${MODULES} ${fmPath}"
204	}
205
206	install_kernel_modules()
207	{
208	local list="$1"
209	local module
210
211	while read module args
212	do
213	case "${module}" in
214	\#*\|"") continue ;;
215	esac
216
217	findmodule ${module}
218	done << EOF
219	$(cat ${list}; echo)
220	EOF
221
222	# create empty modules.lala file
223	:> ${DEST}/etc/$(basename ${list})
224
225	# install detected modules
226	echo "Coping your modules to '${DEST}/lib' ..."
227	for MODULE in ${MODULES}
228	do
229	if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]]
230	then
231	/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) \|\| die
232	else
233	cp ${verbose} -a ${MODULE} ${DEST}/lib \|\| die
234	fi
235
236	# generate modules load file
237	echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) \|\| die
238	done
239
240	export ALL_MODULES="${ALL_MODULES} ${MODULES}"
241	unset MODULES
242	}
243
244	# need r00t privs
245	[[ $(id -u) != 0 ]] && die "you must be r00t."
246
247	# enforce initramfs method as default
248	[[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs
249
250	while [ $# -gt 0 ]; do
251	case $1 in
252	--version)
253	echo "mkinitrd: version ${VERSION}"
254	exit 0
255	;;
256
257	-v) verbose=-v ;;
258	-f) force=1 ;;
259	--nocompress) compress="" ;;
260	--image-version) img_vers=yes ;;
261	--allow-missing) allowmissing=yes ;;
262	--noresume) noresume=1 ;;
263	--help) usage -n ;;
264	--initramfs) IMAGE_TYPE=initramfs ;;
265	--loopback) IMAGE_TYPE=loopback ;;
266	--no-strip) NOSTRIP=true ;;
267	*)
268	if [ -z "${target}" ]
269	then
270	target=$1
271	elif [ -z "${kernel}" ]
272	then
273	kernel=$1
274	else
275	usage
276	fi
277	;;
278	esac
279
280	shift
281	done
282
283
284	# create basic filesystem layout
285	install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} \|\| die
286
287	# install busybox
288	echo "$(which busybox.mkinitrd)"
289	install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox \|\| die
290	for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \
291	grep gunzip gzip init ln ls loadkmap losetup mkdir mknod modprobe more mount mv \
292	pivot_root ps pwd rm rmdir sh sleep test touch true umount uname \
293	xargs yes chmod chown
294	do
295	# static links
296	ln ${DEST}/bin/busybox ${DEST}/bin/${i} \|\| die "${i}"
297	done
298
299	# install run-init
300	echo "$(which run-init.mkinitrd)"
301	install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init \|\| die
302
303	# install insmod.static
304	echo "$(which insmod.static)"
305	install -m0755 $(which insmod.static) ${DEST}/bin/insmod \|\| die
306
307	# install udev
308	cp -a /etc/udev ${DEST}/etc \|\| die
309	install -m0755 /sbin/udev.static ${DEST}/bin/udev \|\| die
310	install -m0755 /sbin/udevd.static ${DEST}/bin/udevd \|\| die
311	install -m0755 /sbin/udevstart.static ${DEST}/bin/udevstart \|\| die
312
313	# create some needed device nodes
314	mkdir ${DEST}/dev/mapper \|\| die
315	mknod ${DEST}/dev/console c 5 1 \|\| die
316	mknod ${DEST}/dev/null c 1 3 \|\| die
317	mknod ${DEST}/dev/ram b 1 1 \|\| die
318	mknod ${DEST}/dev/rtc c 10 135 \|\| die
319	mknod ${DEST}/dev/systty c 4 0 \|\| die
320	mknod ${DEST}/dev/tty c 5 0 \|\| die
321	mknod ${DEST}/dev/zero c 1 5 \|\| die
322	for ((i=0; i < 13; i++))
323	do
324	mknod ${DEST}/dev/tty${i} c 4 ${i} \|\| die "tty${i}"
325	done
326	for ((i=64; i < 68; i++))
327	do
328	mknod ${DEST}/dev/ttyS$((${i} - 64)) c 4 ${i} \|\| die "ttyS$((${i} - 64))"
329	done
330
331	## install kernel modules ##
332	# generic needed
333	install_kernel_modules "${MODULES_GENERIC}"
334
335	# usb
336	install_kernel_modules "${MODULES_USB}"
337
338	# scsi
339	install_kernel_modules "${MODULES_SCSI}"
340
341	# sata
342	install_kernel_modules "${MODULES_SATA}"
343
344	# show all modules
345	for i in ${ALL_MODULES}
346	do
347	echo ${i}
348	done
349
350	# install linuxrc
351	install -m0755 ${LINUXRC} ${DEST}/init \|\| die
352
353	# create the image
354	echo "Creating initrd image '${target}' ..."
355	if [[ ${IMAGE_TYPE} = initramfs ]]
356	then
357	(cd "${DEST}" ; find . \| cpio --quiet -o -H newc \| gzip -9 >${IMAGE})
358	cat ${IMAGE} > ${target} \|\| die
359	fi
360
361	if [[ ${IMAGE_TYPE} = loopback ]]
362	then
363	MOUNTTMP="$(mktemp -d)"
364
365	# create ext2 img
366	dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null \|\| die
367	mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null \|\| die
368	mount -o loop ${IMAGE} ${MOUNTTMP} \|\| die
369	mv ${DEST}/* ${MOUNTTMP} \|\| die
370	umount ${MOUNTTMP} \|\| die
371	gzip -9 ${IMAGE} \|\| die
372	cat ${IMAGE}.gz > ${target} \|\| die
373	[ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}
374
375	# create inird dir for pivot_root
376	[ ! -d /initrd ] && { install -d /initrd \|\| die; }
377	fi
378
379	# clean up
380	[ -d ${DEST} ] && rm -rf ${DEST}
381	[ -f ${IMAGE} ] && rm -f ${IMAGE}
382
383	# all went ok at this point
384	exit 0