mkinitrd-magellan/livecd/mkinitrd-livecd.in

#!/bin/bash
# $Id$

# 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"

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 } } \
		/^.*kernel/ { 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,usr/bin,usr/sbin} || 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
	ln -s ${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

# install v86d for uvesafb support if installed
if which v86d &> /dev/null
then
	echo "$(which v86d)"
	install -m0755 $(which v86d) ${DEST}/sbin/v86d || die
fi

## 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	# $Id$
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
52	compress=1
53	allowmissing=""
54	target=""
55	kernel=""
56	force=""
57	verbose=""
58	img_vers=""
59	builtins=""
60	modulefile=/etc/modules.conf
61	rc=0
62
63	IMAGESIZE=4000
64	PRESCSIMODS="sd_mod"
65	fstab="/etc/fstab"
66
67	vg_list=""
68
69	die() { echo "Error: $@"; exit 1; }
70	add_initrd() { echo "$@" >> ${DEST}/init \|\| die; }
71
72	DEST="$(mktemp -d)"
73	IMAGE="$(mktemp)"
74
75	usage()
76	{
77	echo "usage: $(basename $0) [--version] [--help] [-v] [-f]"
78	echo " [--image-version] [--no-strip] [--nocompress]"
79	echo " [--linuxrc /path/to/custom/linuxrc ]"
80	echo " <initrd-image> <kernel-version>"
81	echo
82	echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"
83
84	exit 0
85	}
86
87	moduledep()
88	{
89	if [ ! -f "/lib/modules/${kernel}/modules.dep" ]
90	then
91	die "No dep file found for kernel ${kernel}"
92	fi
93
94	echo "Looking for deps of module $1"
95	deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \
96	function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \
97	function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \
98	/^.*kernel/ { show(); \
99	orig=modname($1); dep=""; \
100	if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \
101	/^ / { dep=sprintf("%s %s", dep, modname($1)); } \
102	END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1)
103	[ -n "${deps}" ] && echo ":${deps}" \|\| echo
104	}
105
106	findone() { /usr/bin/find "$@" \| /bin/awk '{ print $1; exit; }'; }
107	findall() { /usr/bin/find "$@"; }
108
109	findmodule()
110	{
111	skiperrors=""
112
113	if [[ $1 = --skiperrors ]]
114	then
115	skiperrors=--skiperrors
116	shift
117	fi
118
119	local modName=$1
120
121	if [ "${modName}" = "off" -o "${modName}" = "null" ]
122	then
123	return
124	fi
125
126	if [ $(echo ${modName} \| cut -b1) = "-" ]
127	then
128	skiperrors=--skiperrors
129	modName=$(echo ${modName} \| cut -b2-)
130	fi
131
132	case "${MODULES} " in
133	"/${modName}.ko ") return ;;
134	esac
135
136	if echo ${builtins} \| egrep -q '(^\| )'${modName}'( \|$)'
137	then
138	echo "module ${modName} assumed to be built in"
139	return
140	fi
141
142	# special cases
143	if [[ ${modName} = i2o_block ]]
144	then
145	findmodule i2o_core
146	findmodule -i2o_pci
147	modName="i2o_block"
148	elif [[ ${modName} = ppa ]]
149	then
150	findmodule parport
151	findmodule parport_pc
152	modName="ppa"
153	elif [[ ${modName} = sbp2 ]]
154	then
155	findmodule ieee1394
156	findmodule ohci1394
157	modName="sbp2"
158	else
159	moduledep ${modName}
160	for i in ${deps}
161	do
162	findmodule ${i}
163	done
164	fi
165
166	for modExt in o.gz o ko
167	do
168	for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel}
169	do
170	if [ -d ${modDir} ]
171	then
172	fmPath=$(findone ${modDir} -name ${modName}.${modExt})
173	if [ -f "${fmPath}" ]
174	then
175	break 2
176	fi
177	fi
178	done
179	done
180
181	if [ ! -f ${fmPath} ]
182	then
183	if [ -n "${skiperrors}" ]
184	then
185	return
186	fi
187
188	# ignore the absence of the scsi modules
189	for n in ${PRESCSIMODS}
190	do
191	if [[ ${n} = ${modName} ]]
192	then
193	return
194	fi
195	done
196
197	if [ -n "${allowmissing}" ]
198	then
199	echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway"
200	return
201	fi
202
203	die "No module ${modName} found for kernel ${kernel}, aborting."
204	fi
205
206	# only need to add each module once
207	MODULES="${MODULES} ${fmPath}"
208	}
209
210	install_kernel_modules()
211	{
212	local list="$1"
213	local module
214
215	# no list found; return
216	[[ -z ${list} ]] && return
217
218	while read module args
219	do
220	case "${module}" in
221	\#*\|"") continue ;;
222	esac
223
224	findmodule ${module}
225	done << EOF
226	$(cat ${list}; echo)
227	EOF
228
229	# create empty modules.lala file
230	:> ${DEST}/etc/$(basename ${list})
231
232	# install detected modules
233	echo "Coping your modules to '${DEST}/lib' ..."
234	for MODULE in ${MODULES}
235	do
236	if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]]
237	then
238	/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) \|\| die
239	else
240	cp ${verbose} -a ${MODULE} ${DEST}/lib \|\| die
241	fi
242
243	# generate modules load file
244	echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) \|\| die
245	done
246
247	export ALL_MODULES="${ALL_MODULES} ${MODULES}"
248	unset MODULES
249	}
250
251	# need r00t privs
252	[[ $(id -u) != 0 ]] && die "you must be r00t."
253
254	# enforce initramfs method as default
255	[[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs
256
257	while [ $# -gt 0 ]; do
258	case $1 in
259	--version)
260	echo "mkinitrd: version ${VERSION}"
261	exit 0
262	;;
263
264	-v) verbose=-v ;;
265	-f) force=1 ;;
266	--nocompress) compress="" ;;
267	--image-version) img_vers=yes ;;
268	--allow-missing) allowmissing=yes ;;
269	--noresume) noresume=1 ;;
270	--help) usage -n ;;
271	--initramfs) IMAGE_TYPE=initramfs ;;
272	--loopback) IMAGE_TYPE=loopback ;;
273	--no-strip) NOSTRIP=true ;;
274	--linuxrc) shift; LINUXRC="$1" ;;
275	*)
276	if [ -z "${target}" ]
277	then
278	target=$1
279	elif [ -z "${kernel}" ]
280	then
281	kernel=$1
282	else
283	usage
284	fi
285	;;
286	esac
287
288	shift
289	done
290
291	# no kernel or target given
292	if [[ -z ${target} ]] \|\| [[ -z ${kernel} ]]
293	then
294	usage
295	fi
296
297	# die if linuxrc does not exist
298	[[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found."
299
300	# create basic filesystem layout
301	install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot,usr/bin,usr/sbin} \|\| die
302
303	# install busybox
304	echo "$(which busybox.mkinitrd)"
305	install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox \|\| die
306	for i in '[' ash basename cat cut clear cp dirname echo env false find \
307	grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \
308	ps pwd rm rmdir sh sleep test touch true umount uname \
309	xargs yes chmod chown
310	do
311	# use soft links from now on;
312	# hardlinks in initramfs apears to be broken on newer kernels
313	# -> "request module: runaway loop modprobe binfmt-0000"
314	# see: http://www.gossamer-threads.com/lists/linux/kernel/728042
315	ln -s /bin/busybox ${DEST}/bin/${i} \|\| die "${i}"
316	done
317
318	# sbin related
319	for i in chroot init losetup modprobe pivot_root
320	do
321	ln -s ${DEST}/bin/busybox ${DEST}/sbin/${i} \|\| die "${i}"
322	done
323
324	# install run-init
325	echo "$(which run-init.mkinitrd)"
326	install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init \|\| die
327
328	# install insmod.static
329	#echo "$(which insmod.static)"
330	#install -m0755 $(which insmod.static) ${DEST}/sbin/insmod \|\| die
331
332	# install v86d for uvesafb support if installed
333	if which v86d &> /dev/null
334	then
335	echo "$(which v86d)"
336	install -m0755 $(which v86d) ${DEST}/sbin/v86d \|\| die
337	fi
338
339	## install kernel modules ##
340	# generic needed
341	install_kernel_modules "${MODULES_GENERIC}"
342
343	# usb
344	install_kernel_modules "${MODULES_USB}"
345
346	# scsi
347	install_kernel_modules "${MODULES_SCSI}"
348
349	# sata
350	install_kernel_modules "${MODULES_SATA}"
351
352	# pata
353	install_kernel_modules "${MODULES_PATA}"
354
355	# framebuffer
356	install_kernel_modules "${MODULES_FRAMEBUFFER}"
357
358	# show all modules
359	for i in ${ALL_MODULES}
360	do
361	echo ${i}
362	done
363
364	# install linuxrc
365	install -m0755 ${LINUXRC} ${DEST}/init \|\| die
366
367	# create the image
368	echo "Creating initrd image '${target}' ..."
369	if [[ ${IMAGE_TYPE} = initramfs ]]
370	then
371	(cd "${DEST}" ; find . \| cpio --quiet -o -H newc \| gzip -9 >${IMAGE})
372	cat ${IMAGE} > ${target} \|\| die
373	fi
374
375	if [[ ${IMAGE_TYPE} = loopback ]]
376	then
377	MOUNTTMP="$(mktemp -d)"
378
379	# create ext2 img
380	dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null \|\| die
381	mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null \|\| die
382	mount -o loop ${IMAGE} ${MOUNTTMP} \|\| die
383	mv ${DEST}/* ${MOUNTTMP} \|\| die
384	umount ${MOUNTTMP} \|\| die
385	gzip -9 ${IMAGE} \|\| die
386	cat ${IMAGE}.gz > ${target} \|\| die
387	[ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}
388
389	# create inird dir for pivot_root
390	[ ! -d /initrd ] && { install -d /initrd \|\| die; }
391	fi
392
393	# clean up
394	[ -d ${DEST} ] && rm -rf ${DEST}
395	[ -f ${IMAGE} ] && rm -f ${IMAGE}
396
397	# all went ok at this point
398	exit 0