10 [ -e /etc/initrd.splash ] && . /etc/initrd.splash
13 exec >${CONSOLE} <${CONSOLE} 2>&1
17 echo '/linuxrc has to be run as the init process as the one'
18 echo 'with a PID of 1. Try adding init="/linuxrc" to the'
19 echo 'kernel command line or running "exec /linuxrc".'
23 mount -t proc proc /proc >/dev/null 2>&1
24 mount -o remount,rw / >/dev/null 2>&1
27 /bin/busybox --install -s
31 [ -e /linuxrc ] && rm /linuxrc
35 ln -s /bin/lvm /bin/vgscan
36 ln -s /bin/lvm /bin/vgchange
42 CMDLINE=`cat /proc/cmdline`
43 # Scan CMDLINE for any specified real_root= or cdroot arguments
51 REAL_ROOT=`parse_opt "${x}"`
54 FAKE_ROOT=`parse_opt "${x}"`
57 SUBDIR=`parse_opt "${x}"`
60 REAL_INIT=`parse_opt "${x}"`
63 INIT_OPTS=`parse_opt "${x}"`
71 CDROOT_DEV=`parse_opt "${x}"`
74 CDROOT_TYPE=`parse_opt "${x}"`
76 # Start livecd loop, looptype options
78 LOOP=`parse_opt "${x}"`
81 LOOPTYPE=`parse_opt "${x}"`
83 # Start Volume manager options
88 bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.'
98 DMRAID_OPTS=`parse_opt "${x}"`
105 bad_msg 'Using doevms2 is deprecated, use doevms, instead.'
114 SDELAY=`parse_opt "${x}"`
121 MDOLIST=`parse_opt "${x}"`
122 MDOLIST="`echo ${MDOLIST} | sed -e 's/,/ /g'`"
128 MLIST=`parse_opt "${x}"`
129 MLIST="`echo ${MLIST} | sed -e 's/,/ /g'`"
132 # Redirect output to a specific tty
133 CONSOLE\=*|console\=*)
134 CONSOLE=`parse_opt "${x}"`
135 # exec >${CONSOLE} <${CONSOLE} 2>&1
139 RAID_DEVICES="`parse_opt ${x}`"
140 RAID_DEVICES="`echo ${RAID_DEVICES} | sed -e 's/,/ /g'`"
143 MDPART=`parse_opt "${x}"`
147 IP=`parse_opt "${x}"`
150 NFSROOT=`parse_opt "${x}"`
154 ISCSI_I=`parse_opt "${x}"`
157 ISCSI_T=`parse_opt "${x}"`
160 ISCSI_A=`parse_opt "${x}"`
164 CRYPT_ROOT=`parse_opt "${x}"`
167 CRYPT_SWAP=`parse_opt "${x}"`
170 CRYPT_ROOT_KEY=`parse_opt "${x}"`
173 CRYPT_ROOT_KEYDEV=`parse_opt "${x}"`
176 CRYPT_SWAP_KEY=`parse_opt "${x}"`
179 CRYPT_SWAP_KEYDEV=`parse_opt "${x}"`
182 REAL_RESUME=`parse_opt "${x}"`
191 REAL_ROOTFLAGS=`parse_opt "${x}"`
194 keymap=`parse_opt "${x}"`
197 if [ ! -x /sbin/unionfs ]
200 bad_msg 'unionfs binary not found: aborting use of unionfs!'
209 # if [ ! -x /sbin/unionfs ]
211 # USE_UNIONFS_NORMAL=0
212 # bad_msg 'unionfs binary not found: aborting use of unionfs!'
214 # USE_UNIONFS_NORMAL=1
215 # CMD_UNIONFS=`parse_opt "${x}"`
216 # echo ${CMD_UNIONFS}|grep , >/dev/null 2>&1
217 # if [ "$?" -eq '0' ]
219 # UID=`echo ${CMD_UNIONFS#*,}`
220 # UNIONFS=`echo ${CMD_UNIONFS%,*}`
222 # UNIONFS=${CMD_UNIONFS}
229 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" -eq 0 \) -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
231 REAL_ROOT="${FAKE_ROOT}"
241 # Setup hotplugging for firmware loading
244 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
245 if [ -z "${DO_modules}" ]
247 good_msg 'Skipping module load; disabled via commandline'
248 elif [ -d "/lib/modules/${KV}" ]
250 good_msg 'Loading modules'
251 # Load appropriate kernel modules
252 if [ "${NODETECT}" != '1' ]
254 for modules in ${MY_HWOPTS}
256 modules_scan ${modules}
259 # Always eval doload=...
260 modules_load ${MDOLIST}
262 good_msg 'Skipping module load; no modules in the ramdisk!'
265 # Delay if needed for USB hardware
268 # Start device manager
271 # Setup md device nodes if they dont exist
282 # Initialize LUKS root device except for livecd's
283 if [ "${CDROOT}" != 1 ]
286 if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
288 case "${REAL_RESUME}" in
294 if [ "${retval}" -ne '0' ]; then
295 RESUME_DEV=`findfs "${REAL_RESUME}" 2>/dev/null`
299 if [ "$retval" -ne '0' ]; then
300 RESUME_DEV=`busybox findfs "${REAL_RESUME}" 2>/dev/null`
304 if [ "${retval}" -ne '0' ]; then
305 RESUME_DEV=`blkid -t "${REAL_RESUME}" | cut -d ":" -f 1 2>/dev/null`
309 if [ "${retval}" -eq '0' ] && [ -n "${RESUME_DEV}" ]; then
310 good_msg "Detected real_resume=${RESUME_DEV}"
311 REAL_RESUME="${RESUME_DEV}"
322 mkdir -p "${NEW_ROOT}"
325 # Run debug shell if requested
328 if [ "${CDROOT}" = '1' ]
330 good_msg "Making tmpfs for ${NEW_ROOT}"
331 mount -n -t tmpfs tmpfs "${NEW_ROOT}"
333 for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
335 mkdir -p "${NEW_ROOT}/${i}"
336 chmod 755 "${NEW_ROOT}/${i}"
338 [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
339 [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
341 # For SGI LiveCDs ...
342 if [ "${LOOPTYPE}" = "sgimips" ]
344 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
345 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
348 # Required for splash to work. Not an issue with the initrd as this
349 # device isn't created there and is not needed.
352 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
355 if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
360 if [ "${REAL_ROOT}" = '' ]
362 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
365 while [ ${COUNTER} -lt 3 ]; do
368 let COUNTER=${COUNTER}+1
376 if [ "${REAL_ROOT}" = '' ]
379 umount "${NEW_ROOT}/dev" 2>/dev/null
380 umount "${NEW_ROOT}/sys" 2>/dev/null
381 umount /sys 2>/dev/null
384 rm -rf "${NEW_ROOT}/*"
386 bad_msg 'Could not find CD to boot, something else needed!'
391 # Determine root device
392 good_msg 'Determining root device...'
395 while [ "${got_good_root}" != '1' ]
397 case "${REAL_ROOT}" in
403 if [ "${retval}" -ne '0' ]; then
404 ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null`
408 if [ "$retval" -ne '0' ]; then
409 ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null`
413 if [ "${retval}" -ne '0' ]; then
414 ROOT_DEV=`blkid -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null`
418 if [ "${retval}" -eq '0' ] && [ -n "${ROOT_DEV}" ]; then
419 good_msg "Detected real_root=${ROOT_DEV}"
420 REAL_ROOT="${ROOT_DEV}"
422 whereis "REAL_ROOT" "root block device"
429 if [ "${REAL_ROOT}" = '' ]
431 # No REAL_ROOT determined/specified. Prompt user for root block device.
432 whereis "REAL_ROOT" "root block device"
435 # Check for a block device or /dev/nfs
436 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
441 bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
448 if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
450 # CD already mounted; no further checks necessary
452 elif [ "${LOOPTYPE}" = "sgimips" ]
454 # sgimips mounts the livecd root partition directly
455 # there is no isofs filesystem to worry about
458 good_msg "Mounting root..."
460 # Try to mount the device as ${NEW_ROOT}
461 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
464 # mount ro so fsck doesn't barf later
465 if [ "${REAL_ROOTFLAGS}" = '' ]; then
466 mount -o ro ${REAL_ROOT} ${NEW_ROOT}
468 good_msg "Using mount -o ro,${REAL_ROOTFLAGS}"
469 mount -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
473 # If mount is successful break out of the loop
474 # else not a good root and start over.
477 if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
481 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
486 bad_msg "Could not mount specified ROOT, try again"
492 # End determine root device
496 # If CD root is set determine the looptype to boot
497 if [ "${CDROOT}" = '1' ]
499 good_msg 'Determining looptype ...'
502 # Find loop and looptype
503 [ -z "${LOOP}" ] && find_loop
504 [ -z "${LOOPTYPE}" ] && find_looptype
508 # If encrypted, find key and mount, otherwise mount as usual
509 if [ -n "${CRYPT_ROOT}" ]
511 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
512 CRYPT_ROOT='/dev/loop0'
513 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
515 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
516 test_success 'Preparing loop filesystem'
525 MOUNTTYPE="${LOOPTYPE}"
528 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
529 test_success 'Mount filesystem'
530 FS_LOCATION='mnt/livecd'
531 # Setup the loopback mounts, if unencrypted
533 if [ "${LOOPTYPE}" = 'normal' ]
535 good_msg 'Mounting loop filesystem'
536 mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
537 test_success 'Mount filesystem'
538 FS_LOCATION='mnt/livecd'
539 elif [ "${LOOPTYPE}" = 'squashfs' ]
541 good_msg 'Mounting squashfs filesystem'
542 mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
543 test_success 'Mount filesystem'
544 FS_LOCATION='mnt/livecd'
545 elif [ "${LOOPTYPE}" = 'gcloop' ]
547 good_msg 'Mounting gcloop filesystem'
548 echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
549 test_success 'losetup the loop device'
551 mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
552 test_success 'Mount the losetup loop device'
553 FS_LOCATION='mnt/livecd'
554 elif [ "${LOOPTYPE}" = 'zisofs' ]
556 FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
557 elif [ "${LOOPTYPE}" = 'noloop' ]
559 FS_LOCATION='mnt/cdrom'
560 elif [ "${LOOPTYPE}" = 'sgimips' ]
562 # getdvhoff finds the starting offset (in bytes) of the squashfs
563 # partition on the cdrom and returns this offset for losetup
565 # All currently supported SGI Systems use SCSI CD-ROMs, so
566 # so we know that the CD-ROM is usually going to be /dev/sr0.
568 # We use the value given to losetup to set /dev/loop0 to point
569 # to the liveCD root partition, and then mount /dev/loop0 as
571 good_msg 'Locating the SGI LiveCD Root Partition'
573 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
574 "${NEW_ROOT}${CDROOT_DEV}" \
575 "${NEW_ROOT}${REAL_ROOT}"
576 test_success 'losetup /dev/sr0 /dev/loop0'
578 good_msg 'Mounting the Root Partition'
579 mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
580 test_success 'mount /dev/loop0 /'
581 FS_LOCATION='mnt/livecd'
587 # Unpacking additional packages from NFS mount
588 # This is useful for adding kernel modules to /lib
589 # We do this now, so that additional packages can add whereever they want.
590 if [ "${REAL_ROOT}" = '/dev/nfs' ]
592 if [ -e "${NEW_ROOT}/mnt/cdrom/add" ]
594 for targz in `ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz`
596 tarname=`basename ${targz}`
597 good_msg "Adding additional package ${tarname}"
598 (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
604 if [ "${USE_UNIONFS_NORMAL}" = '1' ]
606 setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
610 good_msg "Copying read-write image contents to tmpfs"
611 # Copy over stuff that should be writable
612 (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
614 # Now we do the links.
615 for x in ${ROOT_LINKS}
617 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
619 ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
621 # List all subdirectories of x
622 find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
624 # Strip the prefix of the FS_LOCATION
625 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
627 # Skip this directory if we already linked a parent directory
628 if [ "${curent_parrent}" != '' ]; then
629 var=`echo "${directory}" | grep "^${curent_parrent}"`
630 if [ "${var}" != '' ]; then
634 # Test if the directory exists already
635 if [ -e "/${NEW_ROOT}/${directory}" ]
637 # It does exist, link all the individual files
638 for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
640 if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
641 ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
645 # It does not exist, make a link to the livecd
646 ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
647 current_parent="${directory}"
653 if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
657 mkdir initramfs proc tmp sys 2>/dev/null
662 #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
663 #if [ "${UML}" = 'UML' ]
666 # good_msg 'Updating for uml system'
669 # Let Init scripts know that we booted from CD
673 if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
678 if [ "${USE_UNIONFS_NORMAL}" = '1' ]
681 mount -t tmpfs tmpfs /union_changes
682 setup_unionfs /union_changes ${NEW_ROOT}
683 mkdir -p ${UNION}/tmp/.initrd
687 # Execute script on the cdrom just before boot to update things if necessary
690 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
692 good_msg "Entering ${SUBDIR} to boot"
693 CHROOT="${CHROOT}/${SUBDIR}"
698 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
699 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
701 echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
702 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
704 echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
708 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
709 echo -ne "${BOLD}.${NORMAL}"
710 umount /sys || echo '*: Failed to unmount the ramdisk /sys!'
711 umount /proc || echo '*: Failed to unmount the ramdisk /proc!'
712 echo -e "${BOLD}.${NORMAL}"
714 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
716 # If we get here, something bad has happened
719 echo 'A fatal error has probably occured since /sbin/init did not'
720 echo 'boot correctly. Trying to open a shell...'