X-Git-Url: http://git.grml.org/?p=live-boot-grml.git;a=blobdiff_plain;f=scripts%2Flive;h=e2112638f44c07089d1731dc35fabb9ed7c085fa;hp=86aaddc6934b1d5fcb80420e806b65e87669f6e1;hb=02f0fb6ca32464adc6d6dd80878ac62bd75048ec;hpb=0a1b827c113b85f48bcd58e64ccd94d094b9bd8a diff --git a/scripts/live b/scripts/live index 86aaddc..e211263 100755 --- a/scripts/live +++ b/scripts/live @@ -2,671 +2,1401 @@ # set -e -export PATH=/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin +export PATH="/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin" echo "/root/lib" >> /etc/ld.so.conf echo "/root/usr/lib" >> /etc/ld.so.conf -mountpoint=/live_media +mountpoint="/live/image" +LIVE_MEDIA_PATH="live" root_persistence="live-rw" home_persistence="home-rw" root_snapshot_label="live-sn" home_snapshot_label="home-sn" -USERNAME=user +USERNAME="user" USERFULLNAME="Live user" -HOSTNAME=host -BUILD_SYSTEM=Custom +HOSTNAME="host" -mkdir -p $mountpoint +mkdir -p "${mountpoint}" [ -f /etc/live.conf ] && . /etc/live.conf -export USERNAME USERFULLNAME HOSTNAME BUILD_SYSTEM +export USERNAME USERFULLNAME HOSTNAME . /scripts/live-helpers -if [ ! -f /live.vars ]; then - touch /live.vars +if [ ! -f /live.vars ] +then + touch /live.vars fi -parse_cmdline () +Arguments () { - PRESEEDS= - # looking for live-initramfs specifics options as kernel parameters - for x in $(cat /proc/cmdline); do - case $x in - userfullname=*) - export USERFULLNAME=${x#userfullname=} - export LIVECONF="changed" - ;; - hostname=*) - export HOSTNAME=${x#hostname=} - export LIVECONF="changed" - ;; - username=*) - export USERNAME=${x#username=} - export LIVECONF="changed" - ;; - netboot*) - export NETBOOT=${x#netboot=} ;; - access=*) - export ACCESS=${x#access=} ;; - xdebconf) - export XDEBCONF="Yes" ;; - xvideomode=*) - export XVIDEOMODE="${x#xvideomode=}" ;; - toram) - export TORAM="Yes" ;; - todisk=*) - export TODISK=${x#todisk=} ;; - noswap) - export NOSWAP="Yes" ;; - noautologin) - export NOAUTOLOGIN="Yes" ;; - noxautologin) - export NOXAUTOLOGIN="Yes" ;; - nosudo) - export NOSUDO="Yes" ;; - showmounts) - export SHOWMOUNTS="Yes" ;; - persistent) - export PERSISTENT="Yes" ;; - nopersistent) - export PERSISTENT="" ;; - ip*) - STATICIP=${x#ip=} - if [ "${STATICIP}" = "" ]; then - STATICIP="frommedia" - fi - export STATICIP ;; - live-getty) - export LIVE_GETTY=1 ;; - bootfrom=*|live-media=*) - export LIVE_MEDIA=${x#*=} ;; - live-media-encryption=*|encryption=*) - export LIVE_MEDIA_ENCRYPTION=${x#*=} ;; - live-media-timeout=*) - export LIVE_MEDIA_TIMEOUT=${x#live-media-timeout=} ;; - live-media-offset=*) - export LIVE_MEDIA_OFFSET=${x#live-media-offset=} ;; - locale=*|debian-installer/locale=*) - export LOCALE=${x#*=} ;; - keyb=*|kbd-chooser/method=*) - export KBD=${x#*=} ;; - klayout=*|console-setup/layoutcode=*) - export KLAYOUT=${x#*=} ;; - koptions=*) - export KOPTIONS=${x#koptions=} ;; - kvariant=*|console-setup/variantcode=*) - export KVARIANT=${x#*=} ;; - kmodel=*|console-setup/modelcode=*) - export KMODEL=${x#*=} ;; - module=*) - export MODULE=${x#module=} ;; - preseed/file=*|file=*) - export LOCATION="${x#*=}" ;; - upgrade) - export UPGRADE="Yes" ;; - */*=*) - question="${x%%=*}" - value="${x#*=}" - PRESEEDS="${PRESEEDS}\"${question}=${value}\" " - ;; - console=*) - export DEFCONSOLE="${x#*=}" ;; - esac - done - - # sort of compatibility with netboot.h from linux docs - if [ -z "${NETBOOT}" ]; then - if [ "${ROOT}" = "/dev/nfs" ]; then - NETBOOT="nfs" - export NETBOOT - elif [ "${ROOT}" = "/dev/cifs" ]; then - NETBOOT="cifs" - export NETBOOT - fi - fi - - if [ -z "${MODULE}" ]; then - MODULE=order - fi + PRESEEDS="" + + for ARGUMENT in $(cat /proc/cmdline) + do + case "${ARGUMENT}" in + access=*) + ACCESS="${ARGUMENT#access=}" + export ACCESS + ;; + + console=*) + DEFCONSOLE="${ARGUMENT#*=}" + export DEFCONSOLE + ;; + + debug) + DEBUG="Yes" + export DEBUG + + set -x + ;; + + fetch=*) + FETCH="${ARGUMENT#fetch=}" + export FETCH + ;; + + hook=*) + HOOK="${ARGUMENT#hook=}" + export HOOK + ;; + + ftpfs=*) + FTPFS="${ARGUMENT#ftpfs=}" + export FTPFS + ;; + + httpfs=*) + HTTPFS="${ARGUMENT#httpfs=}" + export HTTPFS + ;; + + hostname=*) + HOSTNAME="${ARGUMENT#hostname=}" + LIVECONF="changed" + export HOSTNAME LIVECONF + ;; + + username=*) + USERNAME="${ARGUMENT#username=}" + LIVECONF="changed" + export USERNAME LIVECONF + ;; + + userfullname=*) + USERFULLNAME="${ARGUMENT#userfullname=}" + LIVECONF="changed" + export USERFULLNAME LIVECONF + ;; + + ignore_uuid) + IGNORE_UUID="Yes" + export IGNORE_UUID + ;; + + ip=*) + STATICIP="${ARGUMENT#ip=}" + + if [ -z "${STATICIP}" ] + then + STATICIP="frommedia" + fi + + export STATICIP + ;; + + keyb=*|kbd-chooser/method=*) + KBD="${ARGUMENT#*=}" + export KBD + ;; + + klayout=*|console-setup/layoutcode=*) + KLAYOUT="${ARGUMENT#*=}" + export KLAYOUT + ;; + + kvariant=*|console-setup/variantcode=*) + KVARIANT="${ARGUMENT#*=}" + export KVARIANT + ;; + + kmodel=*|console-setup/modelcode=*) + KMODEL="${ARGUMENT#*=}" + export KMODEL + ;; + + koptions=*) + KOPTIONS="${ARGUMENT#koptions=}" + export KOPTIONS + ;; + + live-getty) + LIVE_GETTY="1" + export LIVE_GETTY + ;; + + live-media=*|bootfrom=*) + LIVE_MEDIA="${ARGUMENT#*=}" + export LIVE_MEDIA + ;; + + live-media-encryption=*|encryption=*) + LIVE_MEDIA_ENCRYPTION="${ARGUMENT#*=}" + export LIVE_MEDIA_ENCRYPTION + ;; + + live-media-offset=*) + LIVE_MEDIA_OFFSET="${ARGUMENT#live-media-offset=}" + export LIVE_MEDIA_OFFSET + ;; + + live-media-path=*) + LIVE_MEDIA_PATH="${ARGUMENT#live-media-path=}" + export LIVE_MEDIA_PATH + ;; + + live-media-timeout=*) + LIVE_MEDIA_TIMEOUT="${ARGUMENT#live-media-timeout=}" + export LIVE_MEDIA_TIMEOUT + ;; + + language=*|debian-installer/language=*) + language=${x#debian-installer/language=} + locale="$(lang2locale "$language")" + set_locale="true" + ;; + + locale=*|debian-installer/locale=*) + LOCALE="${ARGUMENT#*=}" + export LOCALE + ;; + + module=*) + MODULE="${ARGUMENT#module=}" + export MODULE + ;; + + netboot=*) + NETBOOT="${ARGUMENT#netboot=}" + export NETBOOT + ;; + + nfsopts=*) + NFSOPTS="${ARGUMENT#nfsopts=}" + export NFSOPTS + ;; + + nfscow=*) + NFS_COW="${ARGUMENT#nfscow=}" + export NFS_COW + ;; + + noaccessibility) + NOACCESSIBILITY="Yes" + export NOACCESSIBILITY + ;; + + noapparmor) + NOAPPARMOR="Yes" + export NOAPPARMOR + ;; + + noaptcdrom) + NOAPTCDROM="Yes" + export NOAPTCDROM + ;; + + noautologin) + NOAUTOLOGIN="Yes" + export NOAUTOLOGIN + ;; + + noxautologin) + NOXAUTOLOGIN="Yes" + export NOXAUTOLOGIN + ;; + + noconsolekeyboard) + NOCONSOLEKEYBOARD="Yes" + export NOCONSOLEKEYBOARD + ;; + + nofastboot) + NOFASTBOOT="Yes" + export NOFASTBOOT + ;; + + nofstab) + NOFSTAB="Yes" + export NOFSTAB + ;; + + nognomepanel) + NOGNOMEPANEL="Yes" + export NOGNOMEPANEL + ;; + + nohosts) + NOHOSTS="Yes" + export NOHOSTS + ;; + + nokpersonalizer) + NOKPERSONALIZER="Yes" + export NOKPERSONALIZER + ;; + + nolanguageselector) + NOLANGUAGESELECTOR="Yes" + export NOLANGUAGESELECTOR + ;; + + nolocales) + NOLOCALES="Yes" + export NOLOCALES + ;; + + nonetworking) + NONETWORKING="Yes" + export NONETWORKING + ;; + + nopowermanagement) + NOPOWERMANAGEMENT="Yes" + export NOPOWERMANAGEMENT + ;; + + noprogramcrashes) + NOPROGRAMCRASHES="Yes" + export NOPROGRAMCRASHES + ;; + + norestrictedmanager) + NORESTRICTEDMANAGER="Yes" + export NORESTRICTEDMANAGER + ;; + + nosudo) + NOSUDO="Yes" + export NOSUDO + ;; + + noswap) + NOSWAP="Yes" + export NOSWAP + ;; + + noupdatenotifier) + NOUPDATENOTIFIER="Yes" + export NOUPDATENOTIFIER + ;; + + nouser) + NOUSER="Yes" + export NOUSER + ;; + + noxautoconfig) + NOXAUTOCONFIG="Yes" + export NOXAUTOCONFIG + ;; + + noxscreensaver) + NOXSCREENSAVER="Yes" + export NOXSCREENSAVER + ;; + + persistent) + PERSISTENT="Yes" + export PERSISTENT + ;; + + nopersistent) + NOPERSISTENT="Yes" + export NOPERSISTENT + ;; + + preseed/file=*|file=*) + LOCATION="${ARGUMENT#*=}" + export LOCATION + ;; + + nopreseed) + NOPRESEED="Yes" + export NOPRESEED + ;; + + url=*) + location="${ARGUMENT#url=}" + + mount -n -o bind /sys /root/sys + mount -n -o bind /proc /root/proc + mount -n -o bind /dev /root/dev + + mkdir -p /root/var/run/network + chroot /root dhclient eth0 + chroot /root wget -P /tmp "${location}" + chroot /root ifconfig eth0 down + + umount /root/sys + umount /root/proc + umount /root/dev + + LOCATION="/tmp/$(basename "${location}")" + ;; + + */*=*) + question="${ARGUMENT%%=*}" + value="${ARGUMENT#*=}" + PRESEEDS="${PRESEEDS}\"${question}=${value}\" " + export PRESEEDS + ;; + + showmounts) + SHOWMOUNTS="Yes" + export SHOWMOUNTS + ;; + + textonly) + TEXTONLY="Yes" + export TEXTONLY + ;; + + timezone=*) + TIMEZONE="${ARGUMENT#timezone=}" + export TIMEZONE + ;; + + notimezone) + NOTIMEZONE="Yes" + export NOTIMEZONE + ;; + + todisk=*) + TODISK="${ARGUMENT#todisk=}" + export TODISK + ;; + + toram) + TORAM="Yes" + export TORAM + ;; + + toram=*) + TORAM="Yes" + MODULETORAM="${ARGUMENT#toram=}" + export TORAM MODULETORAM + ;; + + exposedroot) + EXPOSED_ROOT="Yes" + export EXPOSED_ROOT + ;; + + plainroot) + PLAIN_ROOT="Yes" + export PLAIN_ROOT + ;; + + root=*) + ROOT="${ARGUMENT#root=}" + export ROOT + ;; + + union=*) + UNIONTYPE="${ARGUMENT#union=}" + export UNIONTYPE + ;; + + utc=*) + UTC="${ARGUMENT#utc=}" + export UTC + ;; + + xdebconf) + XDEBCONF="Yes" + export XDEBCONF + ;; + + xdriver=*) + XDRIVER="${ARGUMENT#xdriver=}" + export XDRIVER + ;; + + xvideomode=*) + XVIDEOMODE="${ARGUMENT#xvideomode=}" + export XVIDEOMODE + ;; + esac + done + + # sort of compatibility with netboot.h from linux docs + if [ -z "${NETBOOT}" ] + then + if [ "${ROOT}" = "/dev/nfs" ] + then + NETBOOT="nfs" + export NETBOOT + elif [ "${ROOT}" = "/dev/cifs" ] + then + NETBOOT="cifs" + export NETBOOT + fi + fi + + if [ -z "${MODULE}" ] + then + MODULE="filesystem" + export MODULE + fi + + if [ -z "${UNIONTYPE}" ] + then + UNIONTYPE="unionfs" + export UNIONTYPE + fi } -is_live_path() { - path=$1 - if [ -d "$path/live" ]; then - if [ "$(echo $path/live/*.squashfs)" != "$path/live/*.squashfs" ] || - [ "$(echo $path/live/*.ext2)" != "$path/live/*.ext2" ] || - [ "$(echo $path/live/*.ext3)" != "$path/live/*.ext3" ] || - [ "$(echo $path/live/*.dir)" != "$path/live/*.dir" ]; then - return 0 - fi - fi - return 1 +is_live_path () +{ + DIRECTORY="${1}" + + if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ] + then + for FILESYSTEM in squashfs ext2 ext3 xfs dir jffs2 + do + if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ] + then + return 0 + fi + done + fi + + return 1 +} + +matches_uuid () +{ + if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ] + then + return 0 + fi + + path="${1}" + uuid="$(cat /conf/uuid.conf)" + + for try_uuid_file in "${mountpoint}/.disk/live-uuid"* + do + [ -e "${try_uuid_file}" ] || continue + + try_uuid="$(cat "${try_uuid_file}")" + + if [ "${uuid}" = "${try_uuid}" ] + then + return 0 + fi + done + + return 1 } -get_backing_device() { - case "$1" in - *.squashfs|*.ext2|*.ext3) - echo $(setup_loop "$1" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}") - ;; - *.dir) - echo "directory" - ;; - *) - panic "Unrecognized live filesystem: $1" - ;; - esac +get_backing_device () +{ + case "${1}" in + *.squashfs|*.ext2|*.ext3|*.jffs2) + echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}") + ;; + + *.dir) + echo "directory" + ;; + + *) + panic "Unrecognized live filesystem: ${1}" + ;; + esac } -match_files_in_dir() { - # Does any files match pattern $1 ? +match_files_in_dir () +{ + # Does any files match pattern ${1} ? + local pattern="${1}" - local pattern="$1" - if [ "$(echo $pattern)" != "$pattern" ]; then - return 0 - fi - return 1 + if [ "$(echo ${pattern})" != "${pattern}" ] + then + return 0 + fi + + return 1 } -mount_images_in_directory() { - directory="$1" - rootmnt="$2" - if match_files_in_dir "$directory/live/*.squashfs" || - match_files_in_dir "$directory/live/*.ext2" || - match_files_in_dir "$directory/live/*.ext3" || - match_files_in_dir "$directory/live/*.dir"; then - setup_unionfs "$directory/live" "$rootmnt" - else - : - fi +mount_images_in_directory () +{ + directory="${1}" + rootmnt="${2}" + mac="${3}" + + + if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" || + match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" || + match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" || + match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" || + match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir" + then + [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}" + setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}" + else + : + fi } -is_nice_device() { - sysfs_path="${1#/sys}" - if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"; then - return 0 - fi - return 1 +is_nice_device () +{ + sysfs_path="${1#/sys}" + + if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])" + then + return 0 + fi + + return 1 } -is_supported_fs () { - # FIXME: do something better like the scan of supported filesystems - fstype="${1}" - case ${fstype} in - vfat|iso9660|udf|ext2|ext3|ntfs) - return 0 - ;; - esac - return 1 +copy_live_to () +{ + copyfrom="${1}" + copytodev="${2}" + copyto="${copyfrom}_swap" + + if [ -z "${MODULETORAM}" ] + then + size=$(fs_size "" ${copyfrom} "used") + else + MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}" + + if [ -f "${MODULETORAMFILE}" ] + then + size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 ) + else + log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read." + return 1 + fi + fi + + if [ "${copytodev}" = "ram" ] + then + # copying to ram: + freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) ) + mount_options="-o size=${size}k" + free_string="memory" + fstype="tmpfs" + dev="/dev/shm" + else + # it should be a writable block device + if [ -b "${copytodev}" ] + then + dev="${copytodev}" + free_string="space" + fstype=$(get_fstype "${dev}") + freespace=$(fs_size "${dev}") + else + [ "$quiet" != "y" ] && log_warning_msg "${copytodev} is not a block device." + return 1 + fi + fi + + if [ "${freespace}" -lt "${size}" ] + then + [ "${quiet}" != "y" ] && log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}." + return 1 + fi + + # begin copying (or uncompressing) + mkdir "${copyto}" + echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}" + mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}" + + if [ "${extension}" = "tgz" ] + then + cd "${copyto}" + tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})" + rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})" + mount -r -o move "${copyto}" "${rootmnt}" + cd "${OLDPWD}" + else + if [ -n "${MODULETORAMFILE}" ] + then + cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module + else + cp -a ${copyfrom}/* ${copyto} # "cp -a" from busybox also copies hidden files + fi + + livefs_root + umount ${copyfrom} + mount -r -o move ${copyto} ${copyfrom} + fi + + rmdir ${copyto} + return 0 } -copy_live_to() { - copyfrom="${1}" - copytodev="${2}" - copyto="${copyfrom}_swap" - - size=$(fs_size "" ${copyfrom} "used") - - if [ "${copytodev}" = "ram" ]; then - # copying to ram: - freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) ) - mount_options="-o size=${size}k" - free_string="memory" - fstype="tmpfs" - dev="/dev/shm" - else - # it should be a writable block device - if [ -b "${copytodev}" ]; then - dev="${copytodev}" - free_string="space" - fstype=$(get_fstype "${dev}") - freespace=$(fs_size "${dev}") - else - [ "$quiet" != "y" ] && log_warning_msg "${copytodev} is not a block device." - return 1 - fi - fi - if [ "${freespace}" -lt "${size}" ] ; then - [ "$quiet" != "y" ] && log_warning_msg "Not enough free ${free_string} (${freespace}k > ${size}k) to copy live media in ${copytodev}." - return 1 - fi - - # begin copying.. - mkdir "${copyto}" - echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}" - mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}" - cp -a ${copyfrom}/* ${copyto} # "cp -a" from busybox also copies hidden files - umount ${copyfrom} - mount -r --move ${copyto} ${copyfrom} - rmdir ${copyto} - return 0 +do_netmount () +{ + rc=1 + + modprobe -q af_packet # For DHCP + + udevtrigger + udevsettle + + ipconfig ${DEVICE} | tee /netboot.config + + # source relevant ipconfig output + OLDHOSTNAME=${HOSTNAME} + . /tmp/net-${DEVICE}.conf + [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME} + export HOSTNAME + + if [ "${NFSROOT}" = "auto" ] + then + NFSROOT=${ROOTSERVER}:${ROOTPATH} + fi + + if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) && do_httpmount + then + rc=0 + return ${rc} + fi + + if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ] + then + NFSROOT=${ROOTSERVER}:${NFSROOT} + fi + + [ "${quiet}" != "y" ] && log_begin_msg "Trying netboot from ${NFSROOT}" + + if [ "${NETBOOT}" != "nfs" ] && do_cifsmount + then + rc=0 + elif do_nfsmount + then + NETBOOT="nfs" + export NETBOOT + rc=0 + fi + + [ "${quiet}" != "y" ] && log_end_msg + return ${rc} } -do_netmount() { - rc=1 +do_httpmount () +{ + rc=1 + dest="${mountpoint}/${LIVE_MEDIA_PATH}" + mount -t ramfs ram "${mountpoint}" + mkdir -p "${dest}" + + for webfile in HTTPFS FTPFS FETCH + do + url="$(eval echo \"\$\{${webfile}\}\")" + extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')" + + if [ -n "$url" ] + then + case "${extension}" in + squashfs|tgz|tar) + if [ "${webfile}" = "FETCH" ] + then + [ "${quiet}" != "y" ] && + log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})" + wget "${url}" -O "${dest}/$(basename ${url})" + else + [ "${quiet}" != "y" ] && + log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})" + if [ "${webfile}" = "FTPFS" ] + then + FUSE_MOUNT="curlftpfs" + url="$(dirname ${url})" + else + FUSE_MOUNT="httpfs" + fi + modprobe fuse + $FUSE_MOUNT "${url}" "${dest}" + fi + [ ${?} -eq 0 ] && rc=0 + [ "${extension}" = "tgz" ] && live_dest="ram" + break + ;; + + *) + [ "${quiet}" != "y" ] && log_begin_msg "Unrecognized archive extension for ${url}" + ;; + esac + fi + done - modprobe "${MP_QUIET}" af_packet # For DHCP + if [ ${rc} != 0 ] + then + umount "${mountpoint}" + fi - udevtrigger - udevsettle + return ${rc} +} - ipconfig ${DEVICE} /tmp/net-${DEVICE}.conf | tee /netboot.config +do_nfsmount () +{ + rc=1 - if [ "${NFSROOT}" = "auto" ]; then - NFSROOT=${ROOTSERVER}:${ROOTPATH} - fi + modprobe -q nfs - [ "$quiet" != "y" ] && log_begin_msg "Trying netboot from ${NFSROOT}" + if [ -z "${NFSOPTS}" ] + then + NFSOPTS="" + fi - if [ "${NETBOOT}" != "nfs" ] && do_cifsmount ; then - rc=0 - elif do_nfsmount ; then - NETBOOT="nfs" - export NETBOOT - rc=0 - fi + [ "${quiet}" != "y" ] && log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}" - [ "$quiet" != "y" ] && log_end_msg - return ${rc} -} + # FIXME: This for loop is an ugly HACK round an nfs bug + for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 + do + nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break + sleep 1 + done -do_nfsmount() { - rc=1 - modprobe "${MP_QUIET}" nfs - if [ -z "${NFSOPTS}" ]; then - NFSOPTS="" - fi - - [ "$quiet" != "y" ] && log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}" - # FIXME: This for loop is an ugly HACK round an nfs bug - for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13; do - nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break - sleep 1 - done - return ${rc} + return ${rc} } -do_cifsmount() { - rc=1 - if [ -x "/sbin/mount.cifs" ]; then - if [ -z "${NFSOPTS}" ]; then - CIFSOPTS="-ouser=root,password=" - else - CIFSOPTS="${NFSOPTS}" - fi - - [ "$quiet" != "y" ] && log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}" - modprobe "${MP_QUIET}" cifs - - if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}" ; then - rc=0 - fi - fi - return ${rc} +do_cifsmount () +{ + rc=1 + + if [ -x "/sbin/mount.cifs" ] + then + if [ -z "${NFSOPTS}" ] + then + CIFSOPTS="-ouser=root,password=" + else + CIFSOPTS="${NFSOPTS}" + fi + + [ "${quiet}" != "y" ] && log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}" + modprobe -q cifs + + if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}" + then + rc=0 + fi + fi + + return ${rc} } do_snap_copy () { - fromdev="${1}" - todir="${2}" - snap_type="${3}" - - size=$(fs_size "${fromdev}" "" "used") - - if [ -b "${fromdev}" ]; then - # look for free mem - if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]; then - todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' ) - freespace=$(df -k | grep -s ${todev} | awk '{print $4}') - else - freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - )) - fi - - tomount="/mnt/tmpsnap" - if [ ! -d "${tomount}" ] ; then - mkdir -p "${tomount}" - fi - - fstype=$(get_fstype "${fromdev}") - if [ -n "${fstype}" ]; then - # Copying stuff... - mount -t "${fstype}" -o ro "${fromdev}" "${tomount}" - cp -a "${tomount}"/* ${todir} - umount "${tomount}" - else - log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}" - fi - - rmdir "${tomount}" - if echo ${fromdev} | grep -qs loop; then - losetup -d "${fromdev}" - fi - return 0 - else - return 1 - [ "$quiet" != "y" ] && log_warning_msg "Unable to find the snapshot ${snap_type} medium" - fi + fromdev="${1}" + todir="${2}" + snap_type="${3}" + size=$(fs_size "${fromdev}" "" "used") + + if [ -b "${fromdev}" ] + then + # look for free mem + if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ] + then + todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' ) + freespace=$(df -k | grep -s ${todev} | awk '{print $4}') + else + freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - )) + fi + + tomount="/mnt/tmpsnap" + + if [ ! -d "${tomount}" ] + then + mkdir -p "${tomount}" + fi + + fstype=$(get_fstype "${fromdev}") + + if [ -n "${fstype}" ] + then + # Copying stuff... + mount -t "${fstype}" -o ro,noatime "${fromdev}" "${tomount}" + cp -a "${tomount}"/* ${todir} + umount "${tomount}" + else + log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}" + fi + + rmdir "${tomount}" + + if echo ${fromdev} | grep -qs loop + then + losetup -d "${fromdev}" + fi + + return 0 + else + return 1 + + [ "${quiet}" != "y" ] && log_warning_msg "Unable to find the snapshot ${snap_type} medium" + fi } try_snap () { - # Look for $snap_label.* in block devices and copy the contents to $snap_mount - # and remember the device and filename for resync on exit in live-initramfs.init - - snap_label="${1}" - snap_mount="${2}" - snap_type="${3}" - - snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3") - if [ ! -z "${snapdata}" ]; then - snapdev="$(echo ${snapdata} | cut -f1 -d ' ')" - snapback="$(echo ${snapdata} | cut -f2 -d ' ')" - snapfile="$(echo ${snapdata} | cut -f3 -d ' ')" - if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\)'; then - # squashfs or ext2/ext3 snapshot - dev=$(get_backing_device "${snapback}/${snapfile}") - if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"; then - log_warning_msg "Impossible to include the ${snapfile} Snapshot" - return 1 - fi - else - # cpio.gz snapshot - if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio -i -u -d 2>/dev/null) ; then - log_warning_msg "Impossible to include the ${snapfile} Snapshot" - return 1 - fi - fi - umount "${snapback}" - else - dev=$(find_cow_device "${snap_label}") - if [ -b ${dev} ]; then - if echo "${dev}" | grep -qs loop; then - # strange things happens, user confused? - snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' ) - snapfile=$(basename ${snaploop}) - snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ') - else - snapdev="${dev}" - fi - if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" ; then - log_warning_msg "Impossible to include the ${snap_label} Snapshot" - return 1 - else - if [ -n "${snapfile}" ]; then - # it was a loop device, user confused - umount ${snapdev} - fi - fi - else - log_warning_msg "Impossible to include the ${snap_label} Snapshot" - return 1 - fi - fi - echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt - return 0 + # Look for ${snap_label}.* in block devices and copy the contents to ${snap_mount} + # and remember the device and filename for resync on exit in live-initramfs.init + + snap_label="${1}" + snap_mount="${2}" + snap_type="${3}" + snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.jffs2") + + if [ ! -z "${snapdata}" ] + then + snapdev="$(echo ${snapdata} | cut -f1 -d ' ')" + snapback="$(echo ${snapdata} | cut -f2 -d ' ')" + snapfile="$(echo ${snapdata} | cut -f3 -d ' ')" + + if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|jffs2\)' + then + # squashfs, jffs2 or ext2/ext3 snapshot + dev=$(get_backing_device "${snapback}/${snapfile}") + + if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" + then + log_warning_msg "Impossible to include the ${snapfile} Snapshot" + return 1 + fi + else + # cpio.gz snapshot + if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1) + then + log_warning_msg "Impossible to include the ${snapfile} Snapshot" + return 1 + fi + fi + + umount "${snapback}" + else + dev=$(find_cow_device "${snap_label}") + + if [ -b ${dev} ] + then + if echo "${dev}" | grep -qs loop + then + # strange things happens, user confused? + snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' ) + snapfile=$(basename ${snaploop}) + snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ') + else + snapdev="${dev}" + fi + + if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" + then + log_warning_msg "Impossible to include the ${snap_label} Snapshot" + return 1 + else + if [ -n "${snapfile}" ] + then + # it was a loop device, user confused + umount ${snapdev} + fi + fi + else + log_warning_msg "Impossible to include the ${snap_label} Snapshot" + return 1 + fi + fi + + echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt + return 0 } -setup_unionfs() { - image_directory="$1" - rootmnt="$2" - - modprobe "${MP_QUIET}" -b unionfs - - # run-init can't deal with images in a subdir, but we're going to - # move all of these away before it runs anyway. No, we're not, - # put them in / since move-mounting them into / breaks mono and - # some other apps. - - croot="/" - - # Let's just mount the read-only file systems first - rofsstring="" - rofslist="" - if [ "${NETBOOT}" = "nfs" ] ; then - roopt="nfsro" # go aroung a bug in nfs-unionfs locking - else - roopt="ro" - fi - - # Read image names from ${MODULE}.lst if it exists - if [ -e "${image_directory}/${MODULE}.lst" ]; then - for image in $(cat "${image_directory}/${MODULE}.lst"); do - image_string="${image_string} ${image_directory}/${image}"; - done - else - # If ${MODULE}.lst does not exist, create a list of images - for image_type in "ext2" "ext3" "squashfs" "dir"; do - for image in "${image_directory}"/*."${image_type}"; do - if [ -e "${image}" ]; then - image_string="${image_string} ${image}"; +setup_unionfs () +{ + image_directory="${1}" + rootmnt="${2}" + addimage_directory="${3}" + modprobe -q -b ${UNIONTYPE} + + # run-init can't deal with images in a subdir, but we're going to + # move all of these away before it runs anyway. No, we're not, + # put them in / since move-mounting them into / breaks mono and + # some other apps. + + croot="/" + + # Let's just mount the read-only file systems first + rofsstring="" + rofslist="" + minor_kernel_version=$(uname -r|cut -c 5-|sed 's/[^0-9].*//') + + if [ "${NETBOOT}" = "nfs" ] && [ "${minor_kernel_version}" -lt 22 ] + then + # go aroung a bug in nfs-unionfs locking for unionfs <= 1.4 + roopt="nfsro" + elif [ "${UNIONTYPE}" = "aufs" ] + then + roopt="rr" + else + roopt="ro" + fi + + # Read image names from ${MODULE}.module if it exists + if [ -e "${image_directory}/filesystem.${MODULE}.module" ] + then + for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module) + do + image_string="${image_string} ${image_directory}/${IMAGE}" + done + elif [ -e "${image_directory}/${MODULE}.module" ] + then + for IMAGE in $(cat ${image_directory}/${MODULE}.module) + do + image_string="${image_string} ${image_directory}/${IMAGE}" + done + else + # ${MODULE}.module does not exist, create a list of images + for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir + do + for IMAGE in "${image_directory}"/*."${FILESYSTEM}" + do + if [ -e "${IMAGE}" ] + then + image_string="${image_string} ${IMAGE}" + fi + done + done + + if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ] + then + for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir + do + for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}" + do + if [ -e "${IMAGE}" ] + then + image_string="${image_string} ${IMAGE}" + fi + done + done + fi + + # Now sort the list + image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )" + fi + + [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})" + + mkdir -p "${croot}" + + for image in ${image_string} + do + imagename=$(basename "${image}") + + if [ -d "${image}" ] + then + # it is a plain directory: do nothing + rofsstring="${image}=${roopt}:${rofsstring}" + rofslist="${image} ${rofslist}" + elif [ -f "${image}" ] + then + if /sbin/losetup --help 2>&1 | grep -q -- "-r\b" + then + backdev=$(get_backing_device "${image}" "-r") + else + backdev=$(get_backing_device "${image}") + fi + fstype=$(get_fstype "${backdev}") + + if [ "${fstype}" = "unknown" ] + then + panic "Unknown file system type on ${backdev} (${image})" + fi + + mkdir -p "${croot}/${imagename}" + echo "debug: Mounting backdev \"${backdev}\" (image = ${image}) on croot/imagename \"${croot}/${imagename}\"" + mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}" + fi + done + + rofsstring=${rofsstring%:} + + mkdir -p /cow + + # Looking for "${root_persistence}" device or file + if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ] + then + # Load USB modules + num_block=$(ls -l /sys/block | wc -l) + for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage + do + modprobe -q -b ${module} + done + + udevtrigger + udevsettle + + # For some reason, udevsettle does not block in this scenario, + # so we sleep for a little while. + # + # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591 + for timeout in 5 4 3 2 1 + do + sleep 1 + + if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ] + then + break + fi + done + + cowprobe=$(find_cow_device "${root_persistence}") + + if [ -b "${cowprobe}" ] + then + cowdevice=${cowprobe} + cow_fstype=$(get_fstype "${cowprobe}") + else + [ "${quiet}" != "y" ] && log_warning_msg "Unable to find the persistent medium" + cowdevice="tmpfs" + cow_fstype="tmpfs" + fi + elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ] + then + # check if there are any nfs options + if echo ${NFS_COW}|grep -q ',' + then + nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)" + nfs_cow=$(echo ${NFS_COW}|cut -d, -f1) + else + nfs_cow_opts="-o nolock" + nfs_cow=${NFS_COW} + fi + mac="$(get_mac)" + if [ -n "${mac}" ] + then + cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/") + cow_fstype="nfs" + else + panic "unable to determine mac address" fi - done - done - # Now sort the list - image_string=$(echo ${image_string} | sed -e 's/ /\n/g' | sort ) - fi - - mkdir -p "${croot}" - for image in ${image_string}; do - imagename=$(basename "${image}") - if [ -d "${image}" ]; then - # it is a plain directory: do nothing - rofsstring="${image}=${roopt}:${rofsstring}" - rofslist="${image} ${rofslist}" - elif [ -f "${image}" ]; then - backdev=$(get_backing_device "$image") - fstype=$(get_fstype "${backdev}") - if [ "${fstype}" = "unknown" ]; then - panic "Unknown file system type on ${backdev} (${image})" - fi - mkdir -p "${croot}/${imagename}" - mount -t "${fstype}" -o ro "${backdev}" "${croot}/${imagename}" || panic "Can not mount $backdev ($image) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}" - fi - done - rofsstring=${rofsstring%:} - - mkdir -p /cow - cowdevice="tmpfs" - cow_fstype="tmpfs" - - # Looking for "${root_persistence}" device or file - if [ -n "${PERSISTENT}" ]; then - cowprobe=$(find_cow_device "${root_persistence}") - if [ -b "${cowprobe}" ]; then - cowdevice=${cowprobe} - cow_fstype=$(get_fstype "${cowprobe}") - else - [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent medium" - fi - fi - - mount ${cowdevice} -t ${cow_fstype} -o rw /cow || panic "Can not mount $cowdevice on /cow" - - mount -t unionfs -o dirs=/cow=rw:$rofsstring unionfs "$rootmnt" || panic "Unionfs mount failed" - - # Adding other custom mounts - if [ -n "${PERSISTENT}" ]; then - # directly mount /home - # FIXME: add a custom mounts configurable system - homecow=$(find_cow_device "${home_persistence}" ) - if [ -b "${homecow}" ]; then - mount -t $(get_fstype "${homecow}") -o rw "${homecow}" "${rootmnt}/home" - export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy() - else - [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent home medium" - fi - # Look for other snapshots to copy in - try_snap "${root_snapshot_label}" "${rootmnt}" "ROOT" - try_snap "${home_snapshot_label}" "${rootmnt}/home" "HOME" - fi - - if [ -n "${SHOWMOUNTS}" ]; then - for d in ${rofslist}; do - mkdir -p "${rootmnt}/live/${d##*/}" - case d in - *.dir) # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}" - ;; - *) mount --move "${d}" "${rootmnt}/live/${d##*/}" - ;; - esac - done - fi - - # shows cow fs on /cow for use by live-snapshot - mkdir -p "${rootmnt}/cow" - mount -o bind /cow "${rootmnt}/cow" + else + cowdevice="tmpfs" + cow_fstype="tmpfs" + fi + + if [ "${cow_fstype}" = "nfs" ] + then + [ "${quiet}" != "y" ] && log_begin_msg \ + "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow" + nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \ + panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow" + else + mount -t ${cow_fstype} -o rw,noatime ${cowdevice} /cow || \ + panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow" + fi + + rofscount=$(echo ${rofslist} |wc -w) + + if [ -n "${EXPOSED_ROOT}" ] + then + if [ ${rofscount} -ne 1 ] + then + panic "only one RO file system supported with exposedroot: ${rofslist}" + fi + exposedrootfs=${rofslist%% } + + mount --bind ${exposedrootfs} ${rootmnt} || \ + panic "bind mount of ${exposedrootfs} failed" + + cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool + /home /var/lib/live' + + for dir in ${cow_dirs}; do + mkdir -p /cow${dir} + mount -t ${UNIONTYPE} \ + -o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro \ + ${UNIONTYPE} "${rootmnt}${dir}" || \ + panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option \ + rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro" + done + else + mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} \ + ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on \ + ${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}" + fi + + # tmpfs file systems + mkdir -p "${rootmnt}/live" + mount -t tmpfs tmpfs ${rootmnt}/live + + # Adding other custom mounts + if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ] + then + # directly mount /home + # FIXME: add a custom mounts configurable system + homecow=$(find_cow_device "${home_persistence}" ) + + if [ -b "${homecow}" ] + then + mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home" + export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy() + else + [ "${quiet}" != "y" ] && log_warning_msg "Unable to find the persistent home medium" + fi + + # Look for other snapshots to copy in + try_snap "${root_snapshot_label}" "${rootmnt}" "ROOT" + try_snap "${home_snapshot_label}" "${rootmnt}/home" "HOME" + fi + + if [ -n "${SHOWMOUNTS}" ] + then + for d in ${rofslist} + do + mkdir -p "${rootmnt}/live/${d##*/}" + + case d in + *.dir) + # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}" + ;; + + *) + mount -o move "${d}" "${rootmnt}/live/${d##*/}" + ;; + esac + done + fi + + # shows cow fs on /cow for use by live-snapshot + mkdir -p "${rootmnt}/live/cow" + mount -o move /cow "${rootmnt}/live/cow" || mount -o bind /cow "${rootmnt}/live/cow" || [ "${quiet}" != "y" ] && log_warning_msg "Unable to move or bind /cow to ${rootmnt}/live/cow" } check_dev () { - sysdev="${1}" - devname="${2}" - if [ -z "${devname}" ]; then - devname=$(sys2dev "${sysdev}") - fi - - if [ -n "${LIVE_MEDIA_OFFSET}" ]; then - loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '') - devname="${loopdevname}" - fi - - fstype=$(get_fstype "${devname}") - if is_supported_fs ${fstype}; then - mount -t ${fstype} -o ro "${devname}" $mountpoint || continue - if is_live_path $mountpoint; then - echo $mountpoint - return 0 - else - umount $mountpoint - fi - fi - - if [ -n "${LIVE_MEDIA_OFFSET}" ]; then - losetup -d "${loopdevname}" - fi - return 1 -} + sysdev="${1}" + devname="${2}" + skip_uuid_check="${3}" + + if [ -z "${devname}" ] + then + devname=$(sys2dev "${sysdev}") + fi + + if [ -n "${LIVE_MEDIA_OFFSET}" ] + then + loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '') + devname="${loopdevname}" + fi + + if [ -d "${devname}" ] + then + mount -o bind "${devname}" $mountpoint || continue + + if is_live_path $mountpoint + then + echo $mountpoint + return 0 + else + umount $mountpoint + fi + fi + + fstype=$(get_fstype "${devname}") + + if is_supported_fs ${fstype} + then + mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue + + if is_live_path ${mountpoint} && \ + ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint}) + then + echo ${mountpoint} + return 0 + else + umount ${mountpoint} + fi + fi + + if [ -n "${LIVE_MEDIA_OFFSET}" ] + then + losetup -d "${loopdevname}" + fi -find_livefs() { - timeout="${1}" - # first look at the one specified in the command line - if [ ! -z "${LIVE_MEDIA}" ]; then - if check_dev "null" "${LIVE_MEDIA}"; then - return 0 - fi - fi - # don't start autodetection before timeout has expired - if [ -n "${LIVE_MEDIA_TIMEOUT}" ]; then - if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]; then - return 1 - fi - fi - # or do the scan of block devices - for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram); do - devname=$(sys2dev "${sysblock}") - fstype=$(get_fstype "${devname}") - if /lib/udev/cdrom_id ${devname} > /dev/null; then - if check_dev "null" "${devname}" ; then - return 0 - fi - elif is_nice_device "${sysblock}" ; then - for dev in $(subdevices "${sysblock}"); do - if check_dev "${dev}" ; then - return 0 - fi - done - elif [ "${fstype}" = "squashfs" -o \ - "${fstype}" = "ext2" -o \ - "${fstype}" = "ext3" ]; then - # This is an ugly hack situation, the block device has - # an image directly on it. It's hopefully - # live-initramfs, so take it and run with it. - ln -s "${devname}" "${devname}.${fstype}" - echo "${devname}.${fstype}" - return 0 - fi - done - return 1 + return 1 } -pulsate() { - if [ -x /sbin/usplash_write ]; then - /sbin/usplash_write "PULSATE" - fi +find_livefs () +{ + timeout="${1}" + + # first look at the one specified in the command line + if [ ! -z "${LIVE_MEDIA}" ] + then + if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check" + then + return 0 + fi + fi + + # don't start autodetection before timeout has expired + if [ -n "${LIVE_MEDIA_TIMEOUT}" ] + then + if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ] + then + return 1 + fi + fi + + # or do the scan of block devices + for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram | grep -v 'dm-' | grep -v fd ) + do + devname=$(sys2dev "${sysblock}") + fstype=$(get_fstype "${devname}") + + if /lib/udev/cdrom_id ${devname} > /dev/null + then + if check_dev "null" "${devname}" + then + return 0 + fi + elif is_nice_device "${sysblock}" + then + for dev in $(subdevices "${sysblock}") + do + if check_dev "${dev}" + then + return 0 + fi + done + elif [ "${fstype}" = "squashfs" -o \ + "${fstype}" = "ext2" -o \ + "${fstype}" = "ext3" -o \ + "${fstype}" = "jffs2" ] + then + # This is an ugly hack situation, the block device has + # an image directly on it. It's hopefully + # live-initramfs, so take it and run with it. + ln -s "${devname}" "${devname}.${fstype}" + echo "${devname}.${fstype}" + return 0 + fi + done + + return 1 } -set_usplash_timeout() { - if [ -x /sbin/usplash_write ]; then - /sbin/usplash_write "TIMEOUT 120" - fi +set_usplash_timeout () +{ + if [ -x /sbin/usplash_write ] + then + /sbin/usplash_write "TIMEOUT 120" + fi } -mountroot() { - exec 6>&1 - exec 7>&2 - exec > live.log - exec 2>&1 - - parse_cmdline - - set_usplash_timeout - [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/live-premount" - pulsate - run_scripts /scripts/live-premount - [ "$quiet" != "y" ] && log_end_msg - - # Needed here too because some things (*cough* udev *cough*) - # changes the timeout - - set_usplash_timeout - - if [ ! -z "${NETBOOT}" ]; then - if do_netmount ; then - livefs_root="${mountpoint}" - else - panic "Unable to find a live file system on the network" - fi - else - # Scan local devices for the image - for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19; do - livefs_root=$(find_livefs $i) - if [ -n "${livefs_root}" ]; then - break - fi - sleep 1 - done - fi - - if [ -z "${livefs_root}" ]; then - panic "Unable to find a medium containing a live file system" - fi - - if [ "${TORAM}" ]; then - live_dest="ram" - elif [ "${TODISK}" ]; then - live_dest="${TODISK}" - fi - if [ "${live_dest}" ]; then - log_begin_msg "Copying live_media to ${live_dest}" - copy_live_to "${livefs_root}" "${live_dest}" - log_end_msg - fi - - mount_images_in_directory "${livefs_root}" "${rootmnt}" - - log_end_msg - - maybe_break live-bottom - [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/live-bottom" - - pulsate - run_scripts /scripts/live-bottom - [ "$quiet" != "y" ] && log_end_msg - - exec 1>&6 6>&- - exec 2>&7 7>&- - cp live.log "${rootmnt}/var/log/" +mountroot () +{ + + if [ -x /scripts/local-top/cryptroot ]; then + /scripts/local-top/cryptroot + fi + + exec 6>&1 + exec 7>&2 + exec > live.log + exec 2>&1 + tail -f live.log >&7 & + tailpid="${!}" + + Arguments + + set_usplash_timeout + [ "${quiet}" != "y" ] && log_begin_msg "Running /scripts/live-premount" + run_scripts /scripts/live-premount + [ "${quiet}" != "y" ] && log_end_msg + + # Needed here too because some things (*cough* udev *cough*) + # changes the timeout + + set_usplash_timeout + + if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ] + then + if do_netmount + then + livefs_root="${mountpoint}" + else + panic "Unable to find a live file system on the network" + fi + else + if [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ] + then + # Do a local boot from hd + livefs_root=${ROOT} + else + # Scan local devices for the image + for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 + do + livefs_root=$(find_livefs ${i}) + + if [ -n "${livefs_root}" ] + then + break + fi + + sleep 1 + done + fi + fi + + if [ -z "${livefs_root}" ] + then + panic "Unable to find a medium containing a live file system" + fi + + if [ "${TORAM}" ] + then + live_dest="ram" + elif [ "${TODISK}" ] + then + live_dest="${TODISK}" + fi + + if [ "${live_dest}" ] + then + log_begin_msg "Copying live media to ${live_dest}" + copy_live_to "${livefs_root}" "${live_dest}" + log_end_msg + fi + + if [ -n "${MODULETORAMFILE}" ] + then + setup_unionfs "${livefs_root}" "${rootmnt}" + else + mac="$(get_mac)" + mac="$(echo ${mac} | sed 's/-//g')" + mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}" + fi + + log_end_msg + + maybe_break live-bottom + [ "${quiet}" != "y" ] && log_begin_msg "Running /scripts/live-bottom" + + run_scripts /scripts/live-bottom + [ "${quiet}" != "y" ] && log_end_msg + + exec 1>&6 6>&- + exec 2>&7 7>&- + kill ${tailpid} + cp live.log "${rootmnt}/var/log/" }