#!/bin/sh . /etc/initrd.defaults . /etc/initrd.scripts splash() { return 0 } [ -e /etc/initrd.splash ] && . /etc/initrd.splash # Clean input/output exec >${CONSOLE} <${CONSOLE} 2>&1 if [ "$$" != '1' ] then echo '/linuxrc has to be run as the init process as the one' echo 'with a PID of 1. Try adding init="/linuxrc" to the' echo 'kernel command line or running "exec /linuxrc".' exit 1 fi mount -t proc proc /proc >/dev/null 2>&1 mount -o remount,rw / >/dev/null 2>&1 # Set up symlinks /bin/busybox --install -s if [ "$0" = '/init' ] then [ -e /linuxrc ] && rm /linuxrc fi quiet_kmsg CMDLINE=`cat /proc/cmdline` # Scan CMDLINE for any specified real_root= or cdroot arguments FAKE_ROOT='' REAL_ROOTFLAGS='' CRYPT_SILENT=0 for x in ${CMDLINE} do case "${x}" in real_root\=*) REAL_ROOT=`parse_opt "${x}"` ;; root\=*) FAKE_ROOT=`parse_opt "${x}"` ;; subdir\=*) SUBDIR=`parse_opt "${x}"` ;; real_init\=*) REAL_INIT=`parse_opt "${x}"` ;; init_opts\=*) INIT_OPTS=`parse_opt "${x}"` ;; # Livecd options cdroot) CDROOT=1 ;; cdroot\=*) CDROOT=1 CDROOT_DEV=`parse_opt "${x}"` ;; cdroot_type\=*) CDROOT_TYPE=`parse_opt "${x}"` ;; # Start livecd loop, looptype options loop\=*) LOOP=`parse_opt "${x}"` ;; looptype\=*) LOOPTYPE=`parse_opt "${x}"` ;; isoboot\=*) ISOBOOT=`parse_opt "${x}"` ;; # Start Volume manager options dolvm) USE_LVM_NORMAL=1 ;; dolvm2) bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.' USE_LVM_NORMAL=1 ;; domdadm) USE_MDADM=1 ;; dodmraid) USE_DMRAID_NORMAL=1 ;; dodmraid\=*) DMRAID_OPTS=`parse_opt "${x}"` USE_DMRAID_NORMAL=1 ;; doevms) USE_EVMS_NORMAL=1 ;; doevms2) bad_msg 'Using doevms2 is deprecated, use doevms, instead.' USE_EVMS_NORMAL=1 ;; # Debug Options debug) DEBUG='yes' ;; # Scan delay options scandelay\=*) SDELAY=`parse_opt "${x}"` ;; scandelay) SDELAY=3 ;; # Module no-loads doload\=*) MDOLIST=`parse_opt "${x}"` MDOLIST="`echo ${MDOLIST} | sed -e 's/,/ /g'`" ;; nodetect) NODETECT=1 ;; noload\=*) MLIST=`parse_opt "${x}"` MLIST="`echo ${MLIST} | sed -e 's/,/ /g'`" export MLIST ;; # Redirect output to a specific tty CONSOLE\=*|console\=*) CONSOLE=`parse_opt "${x}"` CONSOLE=`basename ${CONSOLE}` # exec >${CONSOLE} <${CONSOLE} 2>&1 ;; # /dev/md lvmraid\=*) RAID_DEVICES="`parse_opt ${x}`" RAID_DEVICES="`echo ${RAID_DEVICES} | sed -e 's/,/ /g'`" ;; part\=*) MDPART=`parse_opt "${x}"` ;; # NFS ip\=*) IP=`parse_opt "${x}"` ;; nfsroot\=*) NFSROOT=`parse_opt "${x}"` ;; # iSCSI iscsi_initiatorname\=*) ISCSI_INITIATORNAME=`parse_opt "${x}"` ;; iscsi_target\=*) ISCSI_TARGET=`parse_opt "${x}"` ;; iscsi_tgpt\=*) ISCSI_TGPT=`parse_opt "${x}"` ;; iscsi_address\=*) ISCSI_ADDRESS=`parse_opt "${x}"` ;; iscsi_port\=*) ISCSI_PORT=`parse_opt "${x}"` ;; iscsi_username\=*) ISCSI_USERNAME=`parse_opt "${x}"` ;; iscsi_password\=*) ISCSI_PASSWORD=`parse_opt "${x}"` ;; iscsi_username_in\=*) ISCSI_USERNAME_IN=`parse_opt "${x}"` ;; iscsi_password_in\=*) ISCSI_PASSWORD_IN=`parse_opt "${x}"` ;; iscsi_debug\=*) ISCSI_DEBUG=`parse_opt "${x}"` ;; iscsi_noibft) ISCSI_NOIBFT=1 ;; # Crypto crypt_root\=*) CRYPT_ROOT=`parse_opt "${x}"` ;; crypt_swap\=*) CRYPT_SWAP=`parse_opt "${x}"` ;; root_key\=*) CRYPT_ROOT_KEY=`parse_opt "${x}"` ;; root_keydev\=*) CRYPT_ROOT_KEYDEV=`parse_opt "${x}"` ;; swap_key\=*) CRYPT_SWAP_KEY=`parse_opt "${x}"` ;; swap_keydev\=*) CRYPT_SWAP_KEYDEV=`parse_opt "${x}"` ;; real_resume\=*|resume\=*) REAL_RESUME=`parse_opt "${x}"` ;; noresume) NORESUME=1 ;; crypt_silent) CRYPT_SILENT=1 ;; real_rootflags\=*) REAL_ROOTFLAGS=`parse_opt "${x}"` ;; keymap\=*) keymap=`parse_opt "${x}"` ;; unionfs) if [ ! -x /sbin/unionfs ] then USE_UNIONFS_NORMAL=0 bad_msg 'unionfs binary not found: aborting use of unionfs!' else USE_UNIONFS_NORMAL=1 fi ;; nounionfs) USE_UNIONFS_NORMAL=0 ;; # unionfs\=*) # if [ ! -x /sbin/unionfs ] # then # USE_UNIONFS_NORMAL=0 # bad_msg 'unionfs binary not found: aborting use of unionfs!' # else # USE_UNIONFS_NORMAL=1 # CMD_UNIONFS=`parse_opt "${x}"` # echo ${CMD_UNIONFS}|grep , >/dev/null 2>&1 # if [ $? -eq 0 ] # then # UID=`echo ${CMD_UNIONFS#*,}` # UNIONFS=`echo ${CMD_UNIONFS%,*}` # else # UNIONFS=${CMD_UNIONFS} # fi # fi # ;; esac done if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" = '0' \) -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ] then REAL_ROOT="${FAKE_ROOT}" fi splash 'init' cmdline_hwopts # Mount sysfs mount_sysfs # Setup hotplugging for firmware loading setup_hotplug # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel if [ -z "${DO_modules}" ] then good_msg 'Skipping module load; disabled via commandline' elif [ -d "/lib/modules/${KV}" ] then good_msg 'Loading modules' # Load appropriate kernel modules if [ "${NODETECT}" != '1' ] then for modules in ${MY_HWOPTS} do modules_scan ${modules} done fi # Always eval doload=... modules_load ${MDOLIST} else good_msg 'Skipping module load; no modules in the ramdisk!' fi # Apply scan delay if specified sdelay # Setup slow USB bits setup_slowusb # Start device manager start_dev_mgr # if doslowusb is passed, pause other 10 seconds here, after mdev load [ "${DO_slowusb}" ] && sleep 10 # Start iSCSI if [ -e /bin/iscsistart ] then startiscsi fi # Setup btrfs, see bug 303529 setup_btrfsctl # Setup md device nodes if they dont exist setup_md_device # Scan volumes startVolumes setup_keymap # Initialize LUKS root device except for livecd's if [ "${CDROOT}" != 1 ] then startLUKS if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ] then case "${REAL_RESUME}" in LABEL\=*|UUID\=*) RESUME_DEV="" retval=1 if [ ${retval} -ne 0 ]; then RESUME_DEV=`findfs "${REAL_RESUME}" 2>/dev/null` retval=$? fi if [ ${retval} -ne 0 ]; then RESUME_DEV=`busybox findfs "${REAL_RESUME}" 2>/dev/null` retval=$? fi if [ ${retval} -ne 0 ]; then RESUME_DEV=`blkid -l -t "${REAL_RESUME}" | cut -d ":" -f 1 2>/dev/null` retval=$? fi if [ ${retval} -eq 0 ] && [ -n "${RESUME_DEV}" ]; then good_msg "Detected real_resume=${RESUME_DEV}" REAL_RESUME="${RESUME_DEV}" fi ;; esac do_resume fi fi mkdir -p "${NEW_ROOT}" CHROOT="${NEW_ROOT}" # Run debug shell if requested rundebugshell if [ "${CDROOT}" = '1' ] then good_msg "Making tmpfs for ${NEW_ROOT}" mount -n -t tmpfs tmpfs "${NEW_ROOT}" for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys do mkdir -p "${NEW_ROOT}/${i}" chmod 755 "${NEW_ROOT}/${i}" done [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3 [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1 # For SGI LiveCDs ... if [ "${LOOPTYPE}" = "sgimips" ] then [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0 fi # Required for splash to work. Not an issue with the initrd as this # device isn't created there and is not needed. if [ -e /dev/tty1 ] then [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1 fi if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ] then bootstrapCD fi if [ "${REAL_ROOT}" = '' ] then echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices" COUNTER=0 while [ ${COUNTER} -lt 3 ]; do sleep 3 echo -n '.' let COUNTER=${COUNTER}+1 done sleep 1 echo -e "${NORMAL}" bootstrapCD fi if [ "${REAL_ROOT}" = '' ] then # Undo stuff umount "${NEW_ROOT}/dev" 2>/dev/null umount "${NEW_ROOT}/sys" 2>/dev/null umount /sys 2>/dev/null umount "${NEW_ROOT}" rm -rf "${NEW_ROOT}/*" bad_msg 'Could not find CD to boot, something else needed!' CDROOT=0 fi fi # Determine root device good_msg 'Determining root device...' while true do while [ "${got_good_root}" != '1' ] do case "${REAL_ROOT}" in LABEL\=*|UUID\=*) ROOT_DEV="" retval=1 if [ ${retval} -ne 0 ]; then ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null` retval=$? fi if [ ${retval} -ne 0 ]; then ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null` retval=$? fi if [ ${retval} -ne 0 ]; then ROOT_DEV=`blkid -l -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null` retval=$? fi if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then good_msg "Detected real_root=${ROOT_DEV}" REAL_ROOT="${ROOT_DEV}" else whereis "REAL_ROOT" "root block device" got_good_root=0 continue fi ;; esac if [ "${REAL_ROOT}" = '' ] then # No REAL_ROOT determined/specified. Prompt user for root block device. whereis "REAL_ROOT" "root block device" got_good_root=0 # Check for a block device or /dev/nfs elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ] then got_good_root=1 else bad_msg "Block device ${REAL_ROOT} is not a valid root device..." REAL_ROOT="" got_good_root=0 fi done if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ] then # CD already mounted; no further checks necessary break elif [ "${LOOPTYPE}" = "sgimips" ] then # sgimips mounts the livecd root partition directly # there is no isofs filesystem to worry about break else good_msg "Mounting root..." # Try to mount the device as ${NEW_ROOT} if [ "${REAL_ROOT}" = '/dev/nfs' ]; then findnfsmount else # mount ro so fsck doesn't barf later if [ "${REAL_ROOTFLAGS}" = '' ]; then mount -o ro ${REAL_ROOT} ${NEW_ROOT} else good_msg "Using mount -o ro,${REAL_ROOTFLAGS}" mount -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT} fi fi # If mount is successful break out of the loop # else not a good root and start over. if [ "$?" = '0' ] then if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ] then break else bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again" got_good_root=0 REAL_ROOT='' fi else bad_msg "Could not mount specified ROOT, try again" got_good_root=0 REAL_ROOT='' fi fi done # End determine root device #verbose_kmsg # If CD root is set determine the looptype to boot if [ "${CDROOT}" = '1' ] then good_msg 'Determining looptype ...' cd "${NEW_ROOT}" # Find loop and looptype [ -z "${LOOP}" ] && find_loop [ -z "${LOOPTYPE}" ] && find_looptype cache_cd_contents # If encrypted, find key and mount, otherwise mount as usual if [ -n "${CRYPT_ROOT}" ] then CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)" CRYPT_ROOT='/dev/loop0' good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}" losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" test_success 'Preparing loop filesystem' startLUKS case ${LOOPTYPE} in normal) MOUNTTYPE="ext2" ;; *) MOUNTTYPE="${LOOPTYPE}" ;; esac mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd" test_success 'Mount filesystem' FS_LOCATION='mnt/livecd' # Setup the loopback mounts, if unencrypted else if [ "${LOOPTYPE}" = 'normal' ] then good_msg 'Mounting loop filesystem' mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd" test_success 'Mount filesystem' FS_LOCATION='mnt/livecd' elif [ "${LOOPTYPE}" = 'squashfs' ] then good_msg 'Mounting squashfs filesystem' mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd" test_success 'Mount filesystem' FS_LOCATION='mnt/livecd' elif [ "${LOOPTYPE}" = 'gcloop' ] then good_msg 'Mounting gcloop filesystem' echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" test_success 'losetup the loop device' mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd" test_success 'Mount the losetup loop device' FS_LOCATION='mnt/livecd' elif [ "${LOOPTYPE}" = 'zisofs' ] then FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}" elif [ "${LOOPTYPE}" = 'noloop' ] then FS_LOCATION='mnt/cdrom' elif [ "${LOOPTYPE}" = 'sgimips' ] then # getdvhoff finds the starting offset (in bytes) of the squashfs # partition on the cdrom and returns this offset for losetup # # All currently supported SGI Systems use SCSI CD-ROMs, so # so we know that the CD-ROM is usually going to be /dev/sr0. # # We use the value given to losetup to set /dev/loop0 to point # to the liveCD root partition, and then mount /dev/loop0 as # the LiveCD rootfs good_msg 'Locating the SGI LiveCD Root Partition' echo ' ' | \ losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \ "${NEW_ROOT}${CDROOT_DEV}" \ "${NEW_ROOT}${REAL_ROOT}" test_success 'losetup /dev/sr0 /dev/loop0' good_msg 'Mounting the Root Partition' mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd" test_success 'mount /dev/loop0 /' FS_LOCATION='mnt/livecd' fi fi # Unpacking additional packages from NFS mount # This is useful for adding kernel modules to /lib # We do this now, so that additional packages can add whereever they want. if [ "${REAL_ROOT}" = '/dev/nfs' ] then if [ -e "${NEW_ROOT}/mnt/cdrom/add" ] then for targz in `ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz` do tarname=`basename ${targz}` good_msg "Adding additional package ${tarname}" (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz}) done fi fi if [ "${USE_UNIONFS_NORMAL}" = '1' ] then setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION} CHROOT=/union else good_msg "Copying read-write image contents to tmpfs" # Copy over stuff that should be writable (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}") # Now we do the links. for x in ${ROOT_LINKS} do if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ] then ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null else # List all subdirectories of x find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory do # Strip the prefix of the FS_LOCATION directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}" # Skip this directory if we already linked a parent directory if [ "${current_parent}" != '' ]; then var=`echo "${directory}" | grep "^${current_parent}"` if [ "${var}" != '' ]; then continue fi fi # Test if the directory exists already if [ -e "/${NEW_ROOT}/${directory}" ] then # It does exist, link all the individual files for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}` do if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null fi done else # It does not exist, make a link to the livecd ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null current_parent="${directory}" fi done fi done mkdir initramfs proc tmp sys 2>/dev/null chmod 1777 tmp fi #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'` #if [ "${UML}" = 'UML' ] #then # # UML Fixes # good_msg 'Updating for uml system' #fi # Let Init scripts know that we booted from CD export CDBOOT CDBOOT=1 else if [ "${USE_UNIONFS_NORMAL}" = '1' ] then mkdir /union_changes mount -t tmpfs tmpfs /union_changes setup_unionfs /union_changes ${NEW_ROOT} mkdir -p ${UNION}/tmp/.initrd fi fi # Execute script on the cdrom just before boot to update things if necessary cdupdate if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ] then good_msg "Entering ${SUBDIR} to boot" CHROOT="${CHROOT}/${SUBDIR}" fi verbose_kmsg echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}" if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ] then echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}" elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ] then echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}" fi cd "${CHROOT}" mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null echo -ne "${BOLD}.${NORMAL}" # If devtmpfs is mounted, try move it to the new root # If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise if grep -qs "/dev " /proc/mounts then if ! mount --move /dev "${CHROOT}"/dev then umount /dev || echo '*: Failed to move and unmount the ramdisk /dev!' fi fi umount /sys || echo '*: Failed to unmount the ramdisk /sys!' umount /proc || echo '*: Failed to unmount the ramdisk /proc!' echo -e "${BOLD}.${NORMAL}" exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}" # If we get here, something bad has happened splash 'verbose' echo 'A fatal error has probably occured since /sbin/init did not' echo 'boot correctly. Trying to open a shell...' echo exec /bin/bash exec /bin/sh exec /bin/ash exec sh