Diff of /trunk/mkinitrd/mkinitrd.sh

Parent Directory | Revision Log | Patch

	revision 293 by niro, Sat Dec 3 19:52:07 2005 UTC	revision 496 by niro, Sat May 19 14:31:09 2007 UTC
#	Line 1	Line 1
1	#!/bin/bash	#!/bin/bash
2	# $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd.sh,v 1.4 2005-12-03 19:52:07 niro Exp $	# $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd.sh,v 1.12 2007-05-19 14:31:09 niro Exp $
3
4	# mkinitrd	# mkinitrd
5	#	#
#	Line 38  VERSION=5.0.8	Line 38  VERSION=5.0.8
38	PROBE="yes"	PROBE="yes"
39	MODULES=""	MODULES=""
40	PREMODS=""	PREMODS=""
41		NOSTRIP=false
42
43	[ -e /etc/conf.d/mkinitrd ] && . /etc/conf.d/mkinitrd	[ -e /etc/conf.d/mkinitrd ] && . /etc/conf.d/mkinitrd
44
#	Line 55  builtins=""	Line 56  builtins=""
56	modulefile=/etc/modules.conf	modulefile=/etc/modules.conf
57	rc=0	rc=0
58
59	IMAGESIZE=8000	IMAGESIZE=4000
60	PRESCSIMODS="sd_mod"	PRESCSIMODS="sd_mod"
61	fstab="/etc/fstab"	fstab="/etc/fstab"
62
#	Line 73  usage()	Line 74  usage()
74	echo "       [--force-ide-probe] [--force-scsi-probe | --omit-scsi-modules]"	echo "       [--force-ide-probe] [--force-scsi-probe | --omit-scsi-modules]"
75	echo "       [--image-version] [--force-scsi-probe | --omit-raid-modules]"	echo "       [--image-version] [--force-scsi-probe | --omit-raid-modules]"
76	echo "       [--with=<module>] [--force-lvm-probe | --omit-lvm-modules]"	echo "       [--with=<module>] [--force-lvm-probe | --omit-lvm-modules]"
77	echo "       [--builtin=<module>] "	echo "       [--builtin=<module>] [--initramfs | --loopback] [--no-strip]"
78	echo "       [--fstab=<fstab>] [--nocompress] <initrd-image> <kernel-version>"	echo "       [--fstab=<fstab>] [--nocompress] <initrd-image> <kernel-version>"
79	echo	echo
80	echo "       (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"	echo "       (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)"
#	Line 391  while [ $# -gt 0 ]; do	Line 392  while [ $# -gt 0 ]; do
392	--allow-missing) allowmissing=yes ;;	--allow-missing) allowmissing=yes ;;
393	--noresume) noresume=1 ;;	--noresume) noresume=1 ;;
394	--help) usage -n ;;	--help) usage -n ;;
395		--initramfs) IMAGE_TYPE=initramfs ;;
396		--loopback) IMAGE_TYPE=loopback ;;
397		--no-strip) NOSTRIP=true ;;
398	*)	*)
399	if [ -z "${target}" ]	if [ -z "${target}" ]
400	then	then
#	Line 407  while [ $# -gt 0 ]; do	Line 411  while [ $# -gt 0 ]; do
411	shift	shift
412	done	done
413
414		# enforce initramfs method as default
415		[[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs
416
417	if [ -z "${target}" -o -z "${kernel}" ]	if [ -z "${target}" -o -z "${kernel}" ]
418	then	then
419	usage	usage
#	Line 445  fi	Line 452  fi
452	##############################	##############################
453	####### get modules ##########	####### get modules ##########
454
455	echo "Creating initramfs"	echo "Creating ${IMAGE_TYPE} initrd image"
456	modulefile=/etc/modprobe.conf	modulefile=/etc/modprobe.conf
457
458	for n in ${PREMODS}	for n in ${PREMODS}
#	Line 642  echo "Using modules:${MODULES}"	Line 649  echo "Using modules:${MODULES}"
649
650
651	# create basic filesystem layout	# create basic filesystem layout
652	install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die	install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die
653
654	# install busybox	# install busybox
655		echo "$(which busybox.mkinitrd)"
656	install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die	install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die
657	for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \	for i in '[' ash basename cat cut clear cp dirname echo env false find \
658	grep gunzip gzip ln ls loadkmap losetup mkdir mknod modprobe more mount mv \	grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \
659	ps pwd rm rmdir sh sleep test touch true umount uname \	ps pwd rm rmdir sh sleep test touch true umount uname \
660	xargs yes chmod chown	xargs yes chmod chown
661	do	do
662		# use soft links from now on;
663		# hardlinks in initramfs apears to be broken on newer kernels
664		# -> "request module: runaway loop modprobe binfmt-0000"
665		# see: http://www.gossamer-threads.com/lists/linux/kernel/728042
666		ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}"
667		done
668
669		# sbin related
670		for i in chroot init losetup modprobe pivot_root
671		do
672	# static links	# static links
673	ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}"	ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}"
674	done	done
675
676	# install run-init	# install run-init
677	install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die	echo "$(which run-init.mkinitrd)"
678		install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die
679
680	# install insmod.static	# install insmod.static
681	install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die	echo "$(which insmod.static)"
682		install -m0755 $(which insmod.static) ${DEST}/sbin/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 ${DEST}/bin/udevstart || die
683
684	# install lvm	# install lvm
685	if [ -n "${vg_list}" ]	if [ -n "${vg_list}" ]
686	then	then
687	inst /sbin/lvm.static "${DEST}/bin/lvm"	inst /sbin/lvm.static "${DEST}/sbin/lvm"
688	if [ -f /etc/lvm/lvm.conf ]	if [ -f /etc/lvm/lvm.conf ]
689	then	then
690	cp ${verbose} --parents /etc/lvm/lvm.conf ${DEST}/	cp ${verbose} --parents /etc/lvm/lvm.conf ${DEST}/
#	Line 678  then	Line 692  then
692	fi	fi
693
694	# create some needed device nodes	# create some needed device nodes
695		mkdir ${DEST}/dev/pts || die
696		mkdir ${DEST}/dev/shm || die
697	mkdir ${DEST}/dev/mapper || die	mkdir ${DEST}/dev/mapper || die
698		mkdir ${DEST}/dev/misc || die
699		mkdir ${DEST}/dev/fb || die
700		mkdir ${DEST}/dev/vc || die
701	mknod ${DEST}/dev/console c 5 1 || die	mknod ${DEST}/dev/console c 5 1 || die
702	mknod ${DEST}/dev/null c 1 3 || die	mknod ${DEST}/dev/null c 1 3 || die
703	mknod ${DEST}/dev/ram b 1 1 || die	mknod ${DEST}/dev/ram b 1 1 || die
#	Line 702  add_initrd '#!/bin/sh'	Line 721  add_initrd '#!/bin/sh'
721	add_initrd 'mount -t proc proc /proc'	add_initrd 'mount -t proc proc /proc'
722	add_initrd 'mount -t sysfs sysfs /sys'	add_initrd 'mount -t sysfs sysfs /sys'
723
724		[[ ${IMAGE_TYPE} = loopback ]] && add_initrd 'mount -t ramfs -o remount,rw /dev/ram /'
725
726		# silencio
727		add_initrd 'echo 0 > /proc/sys/kernel/printk'
728
729	add_initrd 'echo "-- Creating inital device nodes ..."'	add_initrd 'echo "-- Creating inital device nodes ..."'
730	add_initrd 'mount -o mode=0755 -t tmpfs udev /dev'	add_initrd 'mount -o mode=0755 -t tmpfs udev /dev'
731	add_initrd 'mkdir /dev/pts'	add_initrd 'mkdir /dev/pts'
732	add_initrd 'mkdir /dev/shm'	add_initrd 'mkdir /dev/shm'
733	add_initrd 'mkdir /dev/mapper'	add_initrd 'mkdir /dev/mapper'
734		add_initrd 'mkdir /dev/misc'
735		add_initrd 'mkdir /dev/fb'
736		add_initrd 'mkdir /dev/vc'
737	add_initrd 'mknod /dev/console c 5 1'	add_initrd 'mknod /dev/console c 5 1'
738	add_initrd 'mknod /dev/null c 1 3'	add_initrd 'mknod /dev/null c 1 3'
739	add_initrd 'mknod /dev/ram b 1 1'	add_initrd 'mknod /dev/ram b 1 1'
#	Line 721  for (( i=64; i < 68; i++)); do	Line 748  for (( i=64; i < 68; i++)); do
748	add_initrd "mknod /dev/ttyS$((${i} - 64)) c 4 ${i}"	add_initrd "mknod /dev/ttyS$((${i} - 64)) c 4 ${i}"
749	done	done
750
751	add_initrd 'echo "-- Starting udevd ..."'	# some needed symlinks
	add_initrd 'ln -snf bin /sbin'
	add_initrd '/sbin/udevstart'
752	add_initrd 'ln -snf /proc/self/fd /dev/fd'	add_initrd 'ln -snf /proc/self/fd /dev/fd'
753	add_initrd 'ln -snf fd/0 /dev/stdin'	add_initrd 'ln -snf fd/0 /dev/stdin'
754	add_initrd 'ln -snf fd/1 /dev/stdout'	add_initrd 'ln -snf fd/1 /dev/stdout'
755	add_initrd 'ln -snf fd/2 /dev/stderr'	add_initrd 'ln -snf fd/2 /dev/stderr'
756	add_initrd 'ln -snf /proc/kcore /dev/core'	add_initrd 'ln -snf /proc/kcore /dev/core'
	add_initrd 'touch /dev/.udev'
	add_initrd 'echo "-- Setting up hotplug ..."'
	add_initrd 'echo "/sbin/hotplug" > /proc/sys/kernel/hotplug'
	# add_initrd 'for i in $(find /lib -type f -name *.ko)'
	# add_initrd 'do'
	# add_initrd ' echo "-- Loading module ${i}"'
	# add_initrd ' insmod ${i};'
	# # handle special cases like usb
	# add_initrd ' if [ "${i}" = "usb-storage" ]'
	# add_initrd ' then'
	# add_initrd ' echo "Waiting 8 seconds for usb-driver initialization."'
	# add_initrd ' sleep 8'
	# add_initrd ' fi'
	# add_initrd 'done'
757
758	# loading detected modules with options	# loading detected modules with options
759	for MODULE in ${MODULES}	for MODULE in ${MODULES}
#	Line 809  fi	Line 819  fi
819	# software suspend	# software suspend
820	if [ -z "${noresume}" ]	if [ -z "${noresume}" ]
821	then	then
822	add_initrd "resume ${swsuspdev}"	add_initrd "[ -x /bin/resume ] && resume ${swsuspdev}"
823	fi	fi
824
825	# raid	# raid
#	Line 824  fi	Line 834  fi
834
835	add_initrd 'echo "-- Mounting sysroot ..."'	add_initrd 'echo "-- Mounting sysroot ..."'
836	add_initrd '. /etc/rootdev'	add_initrd '. /etc/rootdev'
837	add_initrd 'mknod ${device} b ${major} ${minor}'	add_initrd '[ ! -e ${device} ] && mknod ${device} b ${major} ${minor}'
838	add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab'	add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab'
839	add_initrd 'mount /sysroot'	add_initrd 'mount /sysroot'
840
841		# de-silencio
842		add_initrd 'echo 3 > /proc/sys/kernel/printk'
843
844	add_initrd 'echo "-- Switching to real sysroot ..."'	add_initrd 'echo "-- Switching to real sysroot ..."'
845	add_initrd 'umount /sys'	add_initrd 'umount /sys'
846	add_initrd 'umount /proc'	add_initrd 'umount /proc'
847	add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console'
848		[[ ${IMAGE_TYPE} = initramfs ]] && add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console'
849		if [[ ${IMAGE_TYPE} = loopback ]]
850		then
851		add_initrd 'cd /sysroot'
852		add_initrd 'pivot_root . initrd'
853		add_initrd "exec /sbin/chroot . sh -c 'umount -n /initrd >/dev/null 2>&1;exec -a init.new /sbin/init'</dev/console >/dev/console 2>&1"
854		fi
855
856	chmod +x ${DEST}/init || die	chmod +x ${DEST}/init || die
857
#	Line 846  echo "rootfs=${rootfs}" >> ${DEST}/etc/r	Line 866  echo "rootfs=${rootfs}" >> ${DEST}/etc/r
866	echo "Coping your modules to '${DEST}/lib' ..."	echo "Coping your modules to '${DEST}/lib' ..."
867	for MODULE in ${MODULES}	for MODULE in ${MODULES}
868	do	do
869	if [ -x /usr/bin/strip ]	if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]]
870	then	then
871	/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die	/usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die
872	else	else
#	Line 856  done	Line 876  done
876
877	# create the image	# create the image
878	echo "Creating initrd image '${target}' ..."	echo "Creating initrd image '${target}' ..."
879	(cd "${DEST}" ; find . | cpio --quiet --dereference -o -H newc | gzip -9 >${IMAGE})	if [[ ${IMAGE_TYPE} = initramfs ]]
880	cat ${IMAGE} > ${target} || die	then
881		(cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE})
882		cat ${IMAGE} > ${target} || die
883		fi
884
885		if [[ ${IMAGE_TYPE} = loopback ]]
886		then
887		MOUNTTMP="$(mktemp -d)"
888
889		# create ext2 img
890		dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die
891		mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die
892		mount -o loop ${IMAGE} ${MOUNTTMP} || die
893		mv ${DEST}/* ${MOUNTTMP} || die
894		umount ${MOUNTTMP} || die
895		gzip -9 ${IMAGE} || die
896		cat ${IMAGE}.gz > ${target} || die
897		[ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP}
898
899		# create inird dir for pivot_root
900		[ ! -d /initrd ] && { install -d /initrd || die; }
901		fi
902
903	# clean up	# clean up
904	[ -d ${DEST} ] && rm -rf ${DEST}	[ -d ${DEST} ] && rm -rf ${DEST}
905	[ -f ${IMAGE} ] && rm -f ${IMAGE}	[ -f ${IMAGE} ] && rm -f ${IMAGE}
906
907		# all went ok at this point
908		exit 0

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