mkinitrd-magellan/livecd/mkinitrd-livecd.in

#!/bin/bash
# $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/mkinitrd-livecd.in,v 1.2 2008-01-14 19:35:02 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=%VERSIONTAG%

MODULES=""
NOSTRIP=false

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

LIBDIR="%LIBDIR%"
LINUXRC="${LIBDIR}/mkinitrd/linuxrc.sh"
MODULES_GENERIC="${LIBDIR}/mkinitrd/modules.generic"
MODULES_USB="${LIBDIR}/mkinitrd/modules.usb"
MODULES_SCSI="${LIBDIR}/mkinitrd/modules.scsi"
MODULES_SATA="${LIBDIR}/mkinitrd/modules.sata"
MODULES_PATA="${LIBDIR}/mkinitrd/modules.pata"
MODULES_FRAMEBUFFER="${LIBDIR}/mkinitrd/modules.framebuffer"
MAKEDEV="${LIBDIR}/mkinitrd/MAKEDEV.sh"

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 "       [--linuxrc /path/to/custom/linuxrc ]"
	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

	# no list found; return
	[[ -z ${list} ]] && return

	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 ;;
		--linuxrc) shift; LINUXRC="$1" ;;
		*)
			if [ -z "${target}" ]
			then
				target=$1
			elif [ -z "${kernel}" ]
			then
				kernel=$1
			else
				usage
			fi
			;;
	esac

	shift
done

# no kernel or target given
if [[ -z ${target} ]] || [[ -z ${kernel} ]]
then
	usage
fi

# die if linuxrc does not exist
[[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found."

# create basic filesystem layout
install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,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 clear cp dirname echo env false find \
	grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \
	ps pwd rm rmdir sh sleep test touch true umount uname \
	xargs yes chmod chown
do
	# use soft links from now on;
	# hardlinks in initramfs apears to be broken on newer kernels
	# -> "request module: runaway loop modprobe binfmt-0000"
	# see: http://www.gossamer-threads.com/lists/linux/kernel/728042
	ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}"
done

# sbin related
for i in chroot init losetup modprobe pivot_root
do
	# static links
	ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}"
done

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

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

# create some needed device nodes
install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV || die
( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty)

## 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}"

# pata
install_kernel_modules "${MODULES_PATA}"

# framebuffer
install_kernel_modules "${MODULES_FRAMEBUFFER}"

# 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-magellan/livecd/mkinitrd-livecd.in,v 1.2 2008-01-14 19:35:02 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:$PATH
34	export PATH
35
36	VERSION=%VERSIONTAG%
37
38	MODULES=""
39	NOSTRIP=false
40
41	[ -e /etc/conf.d/mkinitrd-livecd ] && . /etc/conf.d/mkinitrd-livecd
42
43	LIBDIR="%LIBDIR%"
44	LINUXRC="${LIBDIR}/mkinitrd/linuxrc.sh"
45	MODULES_GENERIC="${LIBDIR}/mkinitrd/modules.generic"
46	MODULES_USB="${LIBDIR}/mkinitrd/modules.usb"
47	MODULES_SCSI="${LIBDIR}/mkinitrd/modules.scsi"
48	MODULES_SATA="${LIBDIR}/mkinitrd/modules.sata"
49	MODULES_PATA="${LIBDIR}/mkinitrd/modules.pata"
50	MODULES_FRAMEBUFFER="${LIBDIR}/mkinitrd/modules.framebuffer"
51	MAKEDEV="${LIBDIR}/mkinitrd/MAKEDEV.sh"
52
53	compress=1
54	allowmissing=""
55	target=""
56	kernel=""
57	force=""
58	verbose=""
59	img_vers=""
60	builtins=""
61	modulefile=/etc/modules.conf
62	rc=0
63
64	IMAGESIZE=4000
65	PRESCSIMODS="sd_mod"
66	fstab="/etc/fstab"
67
68	vg_list=""
69
70	die() { echo "Error: $@"; exit 1; }
71	add_initrd() { echo "$@" >> ${DEST}/init \|\| die; }
72
73	DEST="$(mktemp -d)"
74	IMAGE="$(mktemp)"
75
76	usage()
77	{
78	echo "usage: $(basename $0) [--version] [--help] [-v] [-f]"
79	echo " [--image-version] [--no-strip] [--nocompress]"
80	echo " [--linuxrc /path/to/custom/linuxrc ]"
81	echo " <initrd-image> <kernel-version>"
82	echo
83	echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"
84
85	exit 0
86	}
87
88	moduledep()
89	{
90	if [ ! -f "/lib/modules/${kernel}/modules.dep" ]
91	then
92	die "No dep file found for kernel ${kernel}"
93	fi
94
95	echo "Looking for deps of module $1"
96	deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \
97	function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \
98	function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \
99	/^\/lib/ { show(); \
100	orig=modname($1); dep=""; \
101	if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \
102	/^ / { dep=sprintf("%s %s", dep, modname($1)); } \
103	END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1)
104	[ -n "${deps}" ] && echo ":${deps}" \|\| echo
105	}
106
107	findone() { /usr/bin/find "$@" \| /bin/awk '{ print $1; exit; }'; }
108	findall() { /usr/bin/find "$@"; }
109
110	findmodule()
111	{
112	skiperrors=""
113
114	if [[ $1 = --skiperrors ]]
115	then
116	skiperrors=--skiperrors
117	shift
118	fi
119
120	local modName=$1
121
122	if [ "${modName}" = "off" -o "${modName}" = "null" ]
123	then
124	return
125	fi
126
127	if [ $(echo ${modName} \| cut -b1) = "-" ]
128	then
129	skiperrors=--skiperrors
130	modName=$(echo ${modName} \| cut -b2-)
131	fi
132
133	case "${MODULES} " in
134	"/${modName}.ko ") return ;;
135	esac
136
137	if echo ${builtins} \| egrep -q '(^\| )'${modName}'( \|$)'
138	then
139	echo "module ${modName} assumed to be built in"
140	return
141	fi
142
143	# special cases
144	if [[ ${modName} = i2o_block ]]
145	then
146	findmodule i2o_core
147	findmodule -i2o_pci
148	modName="i2o_block"
149	elif [[ ${modName} = ppa ]]
150	then
151	findmodule parport
152	findmodule parport_pc
153	modName="ppa"
154	elif [[ ${modName} = sbp2 ]]
155	then
156	findmodule ieee1394
157	findmodule ohci1394
158	modName="sbp2"
159	else
160	moduledep ${modName}
161	for i in ${deps}
162	do
163	findmodule ${i}
164	done
165	fi
166
167	for modExt in o.gz o ko
168	do
169	for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel}
170	do
171	if [ -d ${modDir} ]
172	then
173	fmPath=$(findone ${modDir} -name ${modName}.${modExt})
174	if [ -f "${fmPath}" ]
175	then
176	break 2
177	fi
178	fi
179	done
180	done
181
182	if [ ! -f ${fmPath} ]
183	then
184	if [ -n "${skiperrors}" ]
185	then
186	return
187	fi
188
189	# ignore the absence of the scsi modules
190	for n in ${PRESCSIMODS}
191	do
192	if [[ ${n} = ${modName} ]]
193	then
194	return
195	fi
196	done
197
198	if [ -n "${allowmissing}" ]
199	then
200	echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway"
201	return
202	fi
203
204	die "No module ${modName} found for kernel ${kernel}, aborting."
205	fi
206
207	# only need to add each module once
208	MODULES="${MODULES} ${fmPath}"
209	}
210
211	install_kernel_modules()
212	{
213	local list="$1"
214	local module
215
216	# no list found; return
217	[[ -z ${list} ]] && return
218
219	while read module args
220	do
221	case "${module}" in
222	\#*\|"") continue ;;
223	esac
224
225	findmodule ${module}
226	done << EOF
227	$(cat ${list}; echo)
228	EOF
229
230	# create empty modules.lala file
231	:> ${DEST}/etc/$(basename ${list})
232
233	# install detected modules
234	echo "Coping your modules to '${DEST}/lib' ..."
235	for MODULE in ${MODULES}
236	do
237	if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]]
238	then
239	/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) \|\| die
240	else
241	cp ${verbose} -a ${MODULE} ${DEST}/lib \|\| die
242	fi
243
244	# generate modules load file
245	echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) \|\| die
246	done
247
248	export ALL_MODULES="${ALL_MODULES} ${MODULES}"
249	unset MODULES
250	}
251
252	# need r00t privs
253	[[ $(id -u) != 0 ]] && die "you must be r00t."
254
255	# enforce initramfs method as default
256	[[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs
257
258	while [ $# -gt 0 ]; do
259	case $1 in
260	--version)
261	echo "mkinitrd: version ${VERSION}"
262	exit 0
263	;;
264
265	-v) verbose=-v ;;
266	-f) force=1 ;;
267	--nocompress) compress="" ;;
268	--image-version) img_vers=yes ;;
269	--allow-missing) allowmissing=yes ;;
270	--noresume) noresume=1 ;;
271	--help) usage -n ;;
272	--initramfs) IMAGE_TYPE=initramfs ;;
273	--loopback) IMAGE_TYPE=loopback ;;
274	--no-strip) NOSTRIP=true ;;
275	--linuxrc) shift; LINUXRC="$1" ;;
276	*)
277	if [ -z "${target}" ]
278	then
279	target=$1
280	elif [ -z "${kernel}" ]
281	then
282	kernel=$1
283	else
284	usage
285	fi
286	;;
287	esac
288
289	shift
290	done
291
292	# no kernel or target given
293	if [[ -z ${target} ]] \|\| [[ -z ${kernel} ]]
294	then
295	usage
296	fi
297
298	# die if linuxrc does not exist
299	[[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found."
300
301	# create basic filesystem layout
302	install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} \|\| die
303
304	# install busybox
305	echo "$(which busybox.mkinitrd)"
306	install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox \|\| die
307	for i in '[' ash basename cat cut clear cp dirname echo env false find \
308	grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \
309	ps pwd rm rmdir sh sleep test touch true umount uname \
310	xargs yes chmod chown
311	do
312	# use soft links from now on;
313	# hardlinks in initramfs apears to be broken on newer kernels
314	# -> "request module: runaway loop modprobe binfmt-0000"
315	# see: http://www.gossamer-threads.com/lists/linux/kernel/728042
316	ln -s /bin/busybox ${DEST}/bin/${i} \|\| die "${i}"
317	done
318
319	# sbin related
320	for i in chroot init losetup modprobe pivot_root
321	do
322	# static links
323	ln ${DEST}/bin/busybox ${DEST}/sbin/${i} \|\| die "${i}"
324	done
325
326	# install run-init
327	echo "$(which run-init.mkinitrd)"
328	install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init \|\| die
329
330	# install insmod.static
331	echo "$(which insmod.static)"
332	install -m0755 $(which insmod.static) ${DEST}/sbin/insmod \|\| die
333
334	# create some needed device nodes
335	install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV \|\| die
336	( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty)
337
338	## install kernel modules ##
339	# generic needed
340	install_kernel_modules "${MODULES_GENERIC}"
341
342	# usb
343	install_kernel_modules "${MODULES_USB}"
344
345	# scsi
346	install_kernel_modules "${MODULES_SCSI}"
347
348	# sata
349	install_kernel_modules "${MODULES_SATA}"
350
351	# pata
352	install_kernel_modules "${MODULES_PATA}"
353
354	# framebuffer
355	install_kernel_modules "${MODULES_FRAMEBUFFER}"
356
357	# show all modules
358	for i in ${ALL_MODULES}
359	do
360	echo ${i}
361	done
362
363	# install linuxrc
364	install -m0755 ${LINUXRC} ${DEST}/init \|\| die
365
366	# create the image
367	echo "Creating initrd image '${target}' ..."
368	if [[ ${IMAGE_TYPE} = initramfs ]]
369	then
370	(cd "${DEST}" ; find . \| cpio --quiet -o -H newc \| gzip -9 >${IMAGE})
371	cat ${IMAGE} > ${target} \|\| die
372	fi
373
374	if [[ ${IMAGE_TYPE} = loopback ]]
375	then
376	MOUNTTMP="$(mktemp -d)"
377
378	# create ext2 img
379	dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null \|\| die
380	mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null \|\| die
381	mount -o loop ${IMAGE} ${MOUNTTMP} \|\| die
382	mv ${DEST}/* ${MOUNTTMP} \|\| die
383	umount ${MOUNTTMP} \|\| die
384	gzip -9 ${IMAGE} \|\| die
385	cat ${IMAGE}.gz > ${target} \|\| die
386	[ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}
387
388	# create inird dir for pivot_root
389	[ ! -d /initrd ] && { install -d /initrd \|\| die; }
390	fi
391
392	# clean up
393	[ -d ${DEST} ] && rm -rf ${DEST}
394	[ -f ${IMAGE} ] && rm -f ${IMAGE}
395
396	# all went ok at this point
397	exit 0