diff options
Diffstat (limited to 'scripts/boot')
| -rwxr-xr-x | scripts/boot/arguments.sh | 396 | ||||
| -rwxr-xr-x | scripts/boot/mount-cifs.sh | 26 | ||||
| -rwxr-xr-x | scripts/boot/mount-http.sh | 86 | ||||
| -rwxr-xr-x | scripts/boot/mount-iscsi.sh | 49 | ||||
| -rwxr-xr-x | scripts/boot/mount-nfs.sh | 26 | ||||
| -rwxr-xr-x | scripts/boot/netboot.sh | 39 | ||||
| -rwxr-xr-x | scripts/boot/networking.sh | 157 | ||||
| -rwxr-xr-x | scripts/boot/overlay.sh | 424 | ||||
| -rwxr-xr-x | scripts/boot/snapshot.sh | 171 | ||||
| -rwxr-xr-x | scripts/boot/toram-todisk.sh | 102 |
10 files changed, 1476 insertions, 0 deletions
diff --git a/scripts/boot/arguments.sh b/scripts/boot/arguments.sh new file mode 100755 index 0000000..07c9d9a --- /dev/null +++ b/scripts/boot/arguments.sh @@ -0,0 +1,396 @@ +#!/bin/sh + +Arguments () +{ + PRESEEDS="" + LOCATIONS="" + + for ARGUMENT in $(cat /proc/cmdline) + do + case "${ARGUMENT}" in + skipconfig) + NOACCESSIBILITY="Yes" + NOFASTBOOT="Yes" + NOFSTAB="Yes" + NONETWORKING="Yes" + + export NOACCESSIBILITY NOFASTBOOT NOFSTAB NONETWORKING + ;; + + access=*) + ACCESS="${ARGUMENT#access=}" + export ACCESS + ;; + + console=*) + DEFCONSOLE="${ARGUMENT#*=}" + export DEFCONSOLE + ;; + + BOOTIF=*) + BOOTIF="${x#BOOTIF=}" + ;; + + debug) + DEBUG="Yes" + export DEBUG + + set -x + ;; + + dhcp) + # Force dhcp even while netbooting + # Use for debugging in case somebody works on fixing dhclient + DHCP="Force"; + export DHCP + ;; + + nodhcp) + unset DHCP + ;; + + ethdevice=*) + DEVICE="${ARGUMENT#ethdevice=}" + ETHDEVICE="${DEVICE}" + export DEVICE ETHDEVICE + ;; + + ethdevice-timeout=*) + ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}" + export ETHDEV_TIMEOUT + ;; + + fetch=*) + FETCH="${ARGUMENT#fetch=}" + export FETCH + ;; + + findiso=*) + FINDISO="${ARGUMENT#findiso=}" + export FINDISO + ;; + + forcepersistencefsck) + FORCEPERSISTENCEFSCK="Yes" + export FORCEPERSISTENCEFSCK + ;; + + ftpfs=*) + FTPFS="${ARGUMENT#ftpfs=}" + export FTPFS + ;; + + httpfs=*) + HTTPFS="${ARGUMENT#httpfs=}" + export HTTPFS + ;; + + iscsi=*) + ISCSI="${ARGUMENT#iscsi=}" + #ip:port - separated by ; + ISCSI_PORTAL="${ISCSI%;*}" + if echo "${ISCSI_PORTAL}" | grep -q , ; then + ISCSI_SERVER="${ISCSI_PORTAL%,*}" + ISCSI_PORT="${ISCSI_PORTAL#*,}" + fi + #target name + ISCSI_TARGET="${ISCSI#*;}" + export ISCSI ISCSI_PORTAL ISCSI_TARGET ISCSI_SERVER ISCSI_PORT + ;; + + isofrom=*|fromiso=*) + FROMISO="${ARGUMENT#*=}" + export FROMISO + ;; + + ignore_uuid) + IGNORE_UUID="Yes" + export IGNORE_UUID + ;; + + integrity-check) + INTEGRITY_CHECK="Yes" + export INTEGRITY_CHECK + ;; + + ip=*) + STATICIP="${ARGUMENT#ip=}" + + if [ -z "${STATICIP}" ] + then + STATICIP="frommedia" + fi + + export STATICIP + ;; + + live-getty) + LIVE_GETTY="1" + export LIVE_GETTY + ;; + + live-media=*|bootfrom=*) + LIVE_MEDIA="${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 + ;; + + module=*) + MODULE="${ARGUMENT#module=}" + export MODULE + ;; + + netboot=*) + NETBOOT="${ARGUMENT#netboot=}" + export NETBOOT + ;; + + nfsopts=*) + NFSOPTS="${ARGUMENT#nfsopts=}" + export NFSOPTS + ;; + + nfsoverlay=*) + NFS_COW="${ARGUMENT#nfsoverlay=}" + export NFS_COW + ;; + + noaccessibility) + NOACCESSIBILITY="Yes" + export NOACCESSIBILITY + ;; + + nofastboot) + NOFASTBOOT="Yes" + export NOFASTBOOT + ;; + + nofstab) + NOFSTAB="Yes" + export NOFSTAB + ;; + + nonetworking) + NONETWORKING="Yes" + export NONETWORKING + ;; + + ramdisk-size=*) + ramdisk_size="${ARGUMENT#ramdisk-size=}" + ;; + + swapon) + SWAPON="Yes" + export SWAPON + ;; + + persistence) + PERSISTENCE="Yes" + export PERSISTENCE + ;; + + persistence-encryption=*) + PERSISTENCE_ENCRYPTION="${ARGUMENT#*=}" + export PERSISTENCE_ENCRYPTION + ;; + + persistence-media=*) + PERSISTENCE_MEDIA="${ARGUMENT#*=}" + export PERSISTENCE_MEDIA + ;; + persistence-method=*) + PERSISTENCE_METHOD="${ARGUMENT#*=}" + export PERSISTENCE_METHOD + ;; + + persistence-path=*) + PERSISTENCE_PATH="${ARGUMENT#persistence-path=}" + export PERSISTENCE_PATH + ;; + persistence-read-only) + PERSISTENCE_READONLY="Yes" + export PERSISTENCE_READONLY + ;; + + persistence-storage=*) + PERSISTENCE_STORAGE="${ARGUMENT#persistence-storage=}" + export PERSISTENCE_STORAGE + ;; + + persistence-subtext=*) + old_root_overlay_label="${old_root_overlay_label}-${ARGUMENT#persistence-subtext=}" + old_home_overlay_label="${old_home_overlay_label}-${ARGUMENT#persistence-subtext=}" + custom_overlay_label="${custom_overlay_label}-${ARGUMENT#persistence-subtext=}" + root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistence-subtext=}" + old_root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistence-subtext=}" + home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistence-subtext=}" + ;; + + nopersistence) + NOPERSISTENCE="Yes" + export NOPERSISTENCE + ;; + + noprompt) + NOPROMPT="Yes" + export NOPROMPT + ;; + + noprompt=*) + NOPROMPT="${ARGUMENT#noprompt=}" + export NOPROMPT + ;; + + quickusbmodules) + QUICKUSBMODULES="Yes" + export QUICKUSBMODULES + ;; + + preseed/file=*|file=*) + LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}" + export LOCATIONS + ;; + + nopreseed) + NOPRESEED="Yes" + export NOPRESEED + ;; + + */*=*) + question="${ARGUMENT%%=*}" + value="${ARGUMENT#*=}" + PRESEEDS="${PRESEEDS}\"${question}=${value}\" " + export PRESEEDS + ;; + + showmounts) + SHOWMOUNTS="Yes" + export SHOWMOUNTS + ;; + + silent) + SILENT="Yes" + export SILENT + ;; + + 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 + ;; + + skipunion) + SKIP_UNION_MOUNTS="Yes" + export SKIP_UNION_MOUNTS + ;; + + root=*) + ROOT="${ARGUMENT#root=}" + export ROOT + ;; + + union=*) + UNIONTYPE="${ARGUMENT#union=}" + export UNIONTYPE + ;; + 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 "${UNIONTYPE}" ] + then + UNIONTYPE="aufs" + export UNIONTYPE + fi + + if [ -z "${PERSISTENCE_ENCRYPTION}" ] + then + PERSISTENCE_ENCRYPTION="none" + export PERSISTENCE_ENCRYPTION + elif is_in_comma_sep_list luks ${PERSISTENCE_ENCRYPTION} + then + if ! modprobe dm-crypt + then + log_warning_msg "Unable to load module dm-crypt" + PERSISTENCE_ENCRYPTION=$(echo ${PERSISTENCE_ENCRYPTION} | sed -e 's/\<luks,\|,\?luks$//g') + export PERSISTENCE_ENCRYPTION + fi + + if [ ! -x /lib/cryptsetup/askpass ] || [ ! -x /sbin/cryptsetup ] + then + log_warning_msg "cryptsetup in unavailable" + PERSISTENCE_ENCRYPTION=$(echo ${PERSISTENCE_ENCRYPTION} | sed -e 's/\<luks,\|,\?luks$//g') + export PERSISTENCE_ENCRYPTION + fi + fi + + if [ -z "${PERSISTENCE_METHOD}" ] + then + PERSISTENCE_METHOD="snapshot,overlay" + export PERSISTENCE_METHOD + fi + + if [ -z "${PERSISTENCE_STORAGE}" ] + then + PERSISTENCE_STORAGE="filesystem,file" + export PERSISTENCE_STORAGE + fi +} diff --git a/scripts/boot/mount-cifs.sh b/scripts/boot/mount-cifs.sh new file mode 100755 index 0000000..24fef88 --- /dev/null +++ b/scripts/boot/mount-cifs.sh @@ -0,0 +1,26 @@ +#!/bin/sh + +do_cifsmount () +{ + rc=1 + + if [ -x "/sbin/mount.cifs" ] + then + if [ -z "${NFSOPTS}" ] + then + CIFSOPTS="-ouser=root,password=" + else + CIFSOPTS="-o ${NFSOPTS}" + fi + + log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}" + modprobe -q cifs + + if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}" + then + rc=0 + fi + fi + + return ${rc} +} diff --git a/scripts/boot/mount-http.sh b/scripts/boot/mount-http.sh new file mode 100755 index 0000000..99851b9 --- /dev/null +++ b/scripts/boot/mount-http.sh @@ -0,0 +1,86 @@ +#!/bin/sh + +do_httpmount () +{ + rc=1 + + for webfile in HTTPFS FTPFS FETCH + do + local url="$(eval echo \"\$\{${webfile}\}\")" + local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')" + + if [ -n "$url" ] + then + case "${extension}" in + iso|squashfs|tgz|tar) + if [ "${extension}" = "iso" ] + then + mkdir -p "${alt_mountpoint}" + dest="${alt_mountpoint}" + else + local dest="${mountpoint}/${LIVE_MEDIA_PATH}" + mount -t ramfs ram "${mountpoint}" + mkdir -p "${dest}" + fi + if [ "${webfile}" = "FETCH" ] + then + case "$url" in + tftp*) + ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')" + rfile="$(echo $url | sed -e "s|tftp://$ip||g")" + lfile="$(basename $url)" + log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip" + tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip + ;; + + *) + log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})" + wget "${url}" -O "${dest}/$(basename ${url})" + ;; + esac + else + 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}" "${dest}" + ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )" + fi + [ ${?} -eq 0 ] && rc=0 + [ "${extension}" = "tgz" ] && live_dest="ram" + if [ "${extension}" = "iso" ] + then + isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '') + mount -t iso9660 "${isoloop}" "${mountpoint}" + rc=${?} + fi + break + ;; + + *) + log_begin_msg "Unrecognized archive extension for ${url}" + ;; + esac + fi + done + + if [ ${rc} != 0 ] + then + if [ -d "${alt_mountpoint}" ] + then + umount "${alt_mountpoint}" + rmdir "${alt_mountpoint}" + fi + umount "${mountpoint}" + elif [ "${webfile}" != "FETCH" ] ; then + NETBOOT="${webfile}" + export NETBOOT + fi + + return ${rc} +} diff --git a/scripts/boot/mount-iscsi.sh b/scripts/boot/mount-iscsi.sh new file mode 100755 index 0000000..e9cd9cf --- /dev/null +++ b/scripts/boot/mount-iscsi.sh @@ -0,0 +1,49 @@ +#!/bin/sh + +do_iscsi() +{ + do_netsetup + #modprobe ib_iser + modprobe iscsi_tcp + local debugopt="" + [ "${DEBUG}" = "Yes" ] && debugopt="-d 8" + #FIXME this name is supposed to be unique - some date + ifconfig hash? + ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)" + export ISCSI_INITIATORNAME + if [ -n "${ISCSI_SERVER}" ] ; then + iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}" + else + iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260 + fi + if [ $? != 0 ] + then + panic "Failed to log into iscsi target" + fi + local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \ + /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')" + if [ -n "${host}" ] + then + local devices="" + local i=0 + while [ -z "${devices}" -a $i -lt 60 ] + do + sleep 1 + devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \ + /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')" + i=$(expr $i + 1) + echo -ne $i\\r + done + for dev in $devices + do + if check_dev "null" "/dev/$dev" + then + NETBOOT="iscsi" + export NETBOOT + return 0; + fi + done + panic "Failed to locate a live device on iSCSI devices (tried: $devices)." + else + panic "Failed to locate iSCSI host in /sys" + fi +} diff --git a/scripts/boot/mount-nfs.sh b/scripts/boot/mount-nfs.sh new file mode 100755 index 0000000..797bfa5 --- /dev/null +++ b/scripts/boot/mount-nfs.sh @@ -0,0 +1,26 @@ +#!/bin/sh + +do_nfsmount () +{ + rc=1 + + modprobe -q nfs + + if [ -n "${NFSOPTS}" ] + then + NFSOPTS="-o ${NFSOPTS}" + fi + + log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}" + + # FIXME: This while loop is an ugly HACK round an nfs bug + i=0 + while [ "$i" -lt 60 ] + do + nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break + sleep 1 + i="$(($i + 1))" + done + + return ${rc} +} diff --git a/scripts/boot/netboot.sh b/scripts/boot/netboot.sh new file mode 100755 index 0000000..763a258 --- /dev/null +++ b/scripts/boot/netboot.sh @@ -0,0 +1,39 @@ +#!/bin/sh + +do_netmount() +{ + do_netsetup + + if [ "${NFSROOT}" = "auto" ] + then + NFSROOT=${ROOTSERVER}:${ROOTPATH} + fi + + rc=1 + + if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) + then + do_httpmount + return $? + fi + + if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ] + then + NFSROOT=${ROOTSERVER}:${NFSROOT} + fi + + 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 + + log_end_msg + return ${rc} +} diff --git a/scripts/boot/networking.sh b/scripts/boot/networking.sh new file mode 100755 index 0000000..268770e --- /dev/null +++ b/scripts/boot/networking.sh @@ -0,0 +1,157 @@ +#!/bin/sh + +do_netsetup () +{ + modprobe -q af_packet # For DHCP + + udevadm trigger + udevadm settle + + [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15 + echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration." + + if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \ + [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ] + then + + + # support for Syslinux IPAPPEND parameter + # it sets the BOOTIF variable on the kernel parameter + + if [ -n "${BOOTIF}" ] + then + # pxelinux sets BOOTIF to a value based on the mac address of the + # network card used to PXE boot, so use this value for DEVICE rather + # than a hard-coded device name from initramfs.conf. this facilitates + # network booting when machines may have multiple network cards. + # pxelinux sets BOOTIF to 01-$mac_address + + # strip off the leading "01-", which isn't part of the mac + # address + temp_mac=${BOOTIF#*-} + + # convert to typical mac address format by replacing "-" with ":" + bootif_mac="" + IFS='-' + for x in $temp_mac + do + if [ -z "$bootif_mac" ] + then + bootif_mac="$x" + else + bootif_mac="$bootif_mac:$x" + fi + done + unset IFS + + # look for devices with matching mac address, and set DEVICE to + # appropriate value if match is found. + + for device in /sys/class/net/* + do + if [ -f "$device/address" ] + then + current_mac=$(cat "$device/address") + + if [ "$bootif_mac" = "$current_mac" ] + then + DEVICE=${device##*/} + break + fi + fi + done + fi + + # if ethdevice was not specified on the kernel command line + # make sure we try to get a working network configuration + # for *every* present network device (except for loopback of course) + if [ -z "$ETHDEVICE" ] ; then + echo "If you want to boot from a specific device use bootoption ethdevice=..." + for device in /sys/class/net/*; do + dev=${device##*/} ; + if [ "$dev" != "lo" ] ; then + ETHDEVICE="$ETHDEVICE $dev" + fi + done + fi + + # split args of ethdevice=eth0,eth1 into "eth0 eth1" + for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do + devlist="$devlist $device" + done + + # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into + # an endless loop; if execution fails give it two further tries, that's + # why we use '$devlist $devlist $devlist' for the other for loop + for dev in $devlist $devlist $devlist ; do + echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev" + ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config & + jobid=$! + sleep "$ETHDEV_TIMEOUT" ; sleep 1 + if [ -r /proc/"$jobid"/status ] ; then + echo "Killing job $jobid for device $dev as ipconfig ran into recursion..." + kill -9 $jobid + fi + + # if configuration of device worked we should have an assigned + # IP address, if so let's use the device as $DEVICE for later usage. + # simple and primitive approach which seems to work fine + if ifconfig $dev | grep -q 'inet.*addr:' ; then + export DEVICE="$dev" + break + fi + done + + else + for interface in ${DEVICE}; do + ipconfig -t "$ETHDEV_TIMEOUT" ${interface} | tee /netboot-${interface}.config + [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf + if [ "$IPV4ADDR" != "0.0.0.0" ] + then + break + fi + done + fi + + for interface in ${DEVICE}; do + # source relevant ipconfig output + OLDHOSTNAME=${HOSTNAME} + [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf + [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME} + export HOSTNAME + + if [ -n "${interface}" ] + then + HWADDR="$(cat /sys/class/net/${interface}/address)" + fi + + if [ ! -e "/etc/resolv.conf" ] + then + echo "Creating /etc/resolv.conf" + + if [ -n "${DNSDOMAIN}" ] + then + echo "domain ${DNSDOMAIN}" > /etc/resolv.conf + echo "search ${DNSDOMAIN}" >> /etc/resolv.conf + fi + + for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1} + do + if [ -n "$i" ] && [ "$i" != 0.0.0.0 ] + then + echo "nameserver $i" >> /etc/resolv.conf + fi + done + fi + + # Check if we have a network device at all + if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \ + ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \ + ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \ + ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \ + ! ls /sys/class/net/ra0 > /dev/null 2>&1 + then + panic "No supported network device found, maybe a non-mainline driver is required." + fi + done +} diff --git a/scripts/boot/overlay.sh b/scripts/boot/overlay.sh new file mode 100755 index 0000000..193c510 --- /dev/null +++ b/scripts/boot/overlay.sh @@ -0,0 +1,424 @@ +#!/bin/sh + +setup_unionfs () +{ + image_directory="${1}" + rootmnt="${2}" + addimage_directory="${3}" + + case ${UNIONTYPE} in + aufs|unionfs|overlayfs) + modprobe -q -b ${UNIONTYPE} + + if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ] + then + echo "${UNIONTYPE} not available, falling back to unionfs-fuse." + echo "This might be really slow." + + UNIONTYPE="unionfs-fuse" + fi + ;; + esac + + if [ "${UNIONTYPE}" = unionfs-fuse ] + then + modprobe fuse + fi + + # 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 + rofslist="" + + if [ -z "${PLAIN_ROOT}" ] + then + # 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 + # ${MODULE}.module does not exist, create a list of images + for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir + do + for IMAGE in "${image_directory}"/*."${FILESYSTEM}" + do + if [ -e "${IMAGE}" ] + then + image_string="${image_string} ${IMAGE}" + fi + done + done + + if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ] + then + for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir + do + for IMAGE in "${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 "${image}") + + export image devname + maybe_break live-realpremount + log_begin_msg "Running /scripts/live-realpremount" + run_scripts /scripts/live-realpremount + log_end_msg + + if [ -d "${image}" ] + then + # it is a plain directory: do nothing + rofslist="${image} ${rofslist}" + elif [ -f "${image}" ] + then + if 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 + + if [ -z "${fstype}" ] + then + fstype="${imagename##*.}" + log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}." + fi + + if [ "${UNIONTYPE}" != "unionmount" ] + then + mpoint="${croot}/${imagename}" + rofslist="${mpoint} ${rofslist}" + else + mpoint="${rootmnt}" + rofslist="${rootmnt} ${rofslist}" + fi + mkdir -p "${mpoint}" + log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\"" + mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}" + log_end_msg + fi + done + else + # we have a plain root system + mkdir -p "${croot}/filesystem" + log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\"" + mount -t $(get_fstype "${image_directory}") -o ro,noatime "${image_directory}" "${croot}/filesystem" || \ + panic "Can not mount ${image_directory} on ${croot}/filesystem" && \ + rofslist="${croot}/filesystem ${rofslist}" + # probably broken: + mount -o bind ${croot}/filesystem $mountpoint + log_end_msg + fi + + # tmpfs file systems + touch /etc/fstab + mkdir -p /live + mount -t tmpfs tmpfs /live + mkdir -p /live/overlay + + # Looking for persistence devices or files + if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] + then + + if [ -z "${QUICKUSBMODULES}" ] + 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 + + udevadm trigger + udevadm settle + + # 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 ${num_block} ] + then + break + fi + done + fi + + case "${PERSISTENCE_MEDIA}" in + removable) + whitelistdev="$(removable_dev)" + ;; + removable-usb) + whitelistdev="$(removable_usb_dev)" + ;; + *) + whitelistdev="" + ;; + esac + + if is_in_comma_sep_list overlay ${PERSISTENCE_METHOD} + then + overlays="${old_root_overlay_label} ${old_home_overlay_label} ${custom_overlay_label}" + fi + + if is_in_comma_sep_list snapshot ${PERSISTENCE_METHOD} + then + snapshots="${root_snapshot_label} ${home_snapshot_label}" + fi + + local root_snapdata="" + local home_snapdata="" + local overlay_devices="" + for media in $(find_persistence_media "${overlays}" "${snapshots}" "${whitelistdev}") + do + media="$(echo ${media} | tr ":" " ")" + case ${media} in + ${root_snapshot_label}=*|${old_root_snapshot_label}=*) + if [ -z "${root_snapdata}" ] + then + root_snapdata="${media#*=}" + fi + ;; + ${home_snapshot_label}=*) + # This second type should be removed when snapshot will get smarter, + # hence when "/etc/live-snapshot*list" will be supported also by + # ext2|ext3|ext4|jffs2 snapshot types. + if [ -z "${home_snapdata}" ] + then + home_snapdata="${media#*=}" + fi + ;; + ${old_root_overlay_label}=*) + device="${media#*=}" + fix_backwards_compatibility ${device} / union + overlay_devices="${overlay_devices} ${device}" + ;; + ${old_home_overlay_label}=*) + device="${media#*=}" + fix_backwards_compatibility ${device} /home bind + overlay_devices="${overlay_devices} ${device}" + ;; + ${custom_overlay_label}=*) + device="${media#*=}" + overlay_devices="${overlay_devices} ${device}" + ;; + esac + done + elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENCE}" ] + 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 + + if [ -n "${PERSISTENCE_READONLY}" ] + then + nfs_cow_opts="${nfs_cow_opts},nocto,ro" + 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 + fi + + if [ -z "${cowdevice}" ] + then + cowdevice="tmpfs" + cow_fstype="tmpfs" + cow_mountopt="rw,noatime,mode=755" + fi + + if [ "${UNIONTYPE}" != "unionmount" ] + then + if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ] + then + mount -t tmpfs -o rw,noatime,mode=755 tmpfs "/live/overlay" + root_backing="/live/persistence/$(basename ${cowdevice})-root" + mkdir -p ${root_backing} + else + root_backing="/live/overlay" + fi + + if [ "${cow_fstype}" = "nfs" ] + then + log_begin_msg \ + "Trying nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing}" + nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing} || \ + panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on ${root_backing}" + else + mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} ${root_backing} || \ + panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on ${root_backing}" + fi + fi + + rofscount=$(echo ${rofslist} |wc -w) + + rofs=${rofslist%% } + + if [ -n "${EXPOSED_ROOT}" ] + then + if [ ${rofscount} -ne 1 ] + then + panic "only one RO file system supported with exposedroot: ${rofslist}" + fi + + mount --bind ${rofs} ${rootmnt} || \ + panic "bind mount of ${rofs} failed" + + if [ -z "${SKIP_UNION_MOUNTS}" ] + then + cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live' + else + cow_dirs='' + fi + else + cow_dirs="/" + fi + + if [ "${cow_fstype}" != "tmpfs" ] && [ "${cow_dirs}" != "/" ] && [ "${UNIONTYPE}" = "unionmount" ] + then + true # FIXME: Maybe it does, I don't really know. + #panic "unionmount does not support subunions (${cow_dirs})." + fi + + for dir in ${cow_dirs}; do + unionmountpoint="${rootmnt}${dir}" + mkdir -p ${unionmountpoint} + if [ "${UNIONTYPE}" = "unionmount" ] + then + # FIXME: handle PERSISTENCE_READONLY + unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}" + mount_full $unionmountopts "${unionmountpoint}" + else + cow_dir="/live/overlay${dir}" + rofs_dir="${rofs}${dir}" + mkdir -p ${cow_dir} + if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ] + then + do_union ${unionmountpoint} ${cow_dir} ${root_backing} ${rofs_dir} + else + do_union ${unionmountpoint} ${cow_dir} ${rofs_dir} + fi + fi || panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}" + done + + # Correct the permissions of /: + chmod 0755 "${rootmnt}" + + live_rofs_list="" + # SHOWMOUNTS is necessary for custom mounts with the union option + # Since we may want to do custom mounts in user-space it's best to always enable SHOWMOUNTS + if true #[ -n "${SHOWMOUNTS}" ] || ( [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] 1) + then + # XXX: is the for loop really necessary? rofslist can only contain one item (see above XXX about EXPOSEDROOT) and this is also assumed elsewhere above (see use of $rofs above). + for d in ${rofslist} + do + live_rofs="/live/rofs/${d##*/}" + live_rofs_list="${live_rofs_list} ${live_rofs}" + mkdir -p "${live_rofs}" + case d in + *.dir) + # do nothing # mount -o bind "${d}" "${live_rofs}" + ;; + *) + case "${UNIONTYPE}" in + unionfs-fuse) + mount -o bind "${d}" "${live_rofs}" + ;; + *) + mount -o move "${d}" "${live_rofs}" + ;; + esac + ;; + esac + done + fi + + # Adding custom persistence + if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] + then + local custom_mounts="/tmp/custom_mounts.list" + rm -rf ${custom_mounts} 2> /dev/null + + # Gather information about custom mounts from devies detected as overlays + get_custom_mounts ${custom_mounts} ${overlay_devices} + + [ -n "${DEBUG}" ] && cp ${custom_mounts} "/live/persistence" + + # Now we do the actual mounting (and symlinking) + local used_overlays="" + used_overlays=$(activate_custom_mounts ${custom_mounts}) + rm ${custom_mounts} + + # Close unused overlays (e.g. due to missing $persistence_list) + for overlay in ${overlay_devices} + do + if echo ${used_overlays} | grep -qve "^\(.* \)\?${device}\( .*\)\?$" + then + close_persistence_media ${overlay} + fi + done + + # Look for other snapshots to copy in + [ -n "${root_snapdata}" ] && try_snap "${root_snapdata}" "${rootmnt}" "ROOT" + # This second type should be removed when snapshot grow smarter + [ -n "${home_snapdata}" ] && try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home" + fi + + mkdir -p "${rootmnt}/live" + mount -o move /live "${rootmnt}/live" >/dev/null 2>&1 || mount -o bind /live "${rootmnt}/live" || log_warning_msg "Unable to move or bind /live to ${rootmnt}/live" + + # shows cow fs on /overlay for use by live-snapshot + mkdir -p "${rootmnt}/live/overlay" + mount -o move /live/overlay "${rootmnt}/live/overlay" >/dev/null 2>&1 || mount -o bind /overlay "${rootmnt}/live/overlay" || log_warning_msg "Unable to move or bind /overlay to ${rootmnt}/live/overlay" + +} diff --git a/scripts/boot/snapshot.sh b/scripts/boot/snapshot.sh new file mode 100755 index 0000000..3c9ebcd --- /dev/null +++ b/scripts/boot/snapshot.sh @@ -0,0 +1,171 @@ +#!/bin/sh + +do_snap_copy () +{ + fromdev="${1}" + todir="${2}" + snap_type="${3}" + size=$(fs_size "${fromdev}" "" "used") + + if [ -b "${fromdev}" ] + then + log_success_msg "Copying snapshot ${fromdev} to ${todir}..." + + # look for free mem + if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ] + then + todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts) + freespace=$(df -k | awk '/'${todev}'/{print $4}') + else + freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo) + fi + + tomount="/mnt/tmpsnap" + + if [ ! -d "${tomount}" ] + then + mkdir -p "${tomount}" + fi + + fstype=$(get_fstype "${fromdev}") + + if [ -n "${fstype}" ] + then + # Copying stuff... + mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in 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 + log_warning_msg "Unable to find the snapshot ${snap_type} medium" + return 1 + fi +} + +try_snap () +{ + # copy the contents of previously found snapshot to ${snap_mount} + # and remember the device and filename for resync on exit in live-boot.init + + snapdata="${1}" + snap_mount="${2}" + snap_type="${3}" + snap_relpath="${4}" + + if [ -z "${snap_relpath}" ] + then + # root snapshot, default usage + snap_relpath="/" + else + # relative snapshot (actually used just for "/home" snapshots) + snap_mount="${2}${snap_relpath}" + fi + + if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ] + then + log_success_msg "found snapshot: ${snapdata}" + snapdev="$(echo ${snapdata} | cut -f1 -d ' ')" + snapback="$(echo ${snapdata} | cut -f2 -d ' ')" + snapfile="$(echo ${snapdata} | cut -f3 -d ' ')" + + if ! try_mount "${snapdev}" "${snapback}" "ro" + then + break + fi + + RES="0" + + if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)' + then + # squashfs, jffs2 or ext2/ext3/ext4 snapshot + dev=$(get_backing_device "${snapback}/${snapfile}") + + do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" + RES="$?" + else + # cpio.gz snapshot + + # Unfortunately klibc's cpio is incompatible with the + # rest of the world; everything else requires -u -d, + # while klibc doesn't implement them. Try to detect + # whether it's in use. + cpiopath="$(which cpio)" || true + if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath" + then + cpioargs= + else + cpioargs='--unconditional --make-directories' + fi + + if [ -s "${snapback}/${snapfile}" ] + then + BEFOREDIR="$(pwd)" + cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null + RES="$?" + cd "${BEFOREDIR}" + else + log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot." + RES="0" + fi + + if [ "${RES}" != "0" ] + then + log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\"" + fi + fi + + umount "${snapback}" || log_warning_msg "failure to \"umount ${snapback}\"" + + if [ "${RES}" != "0" ] + then + log_warning_msg "Impossible to include the ${snapfile} Snapshot file" + fi + + elif [ -b "${snapdata}" ] + then + # Try to find if it could be a snapshot partition + dev="${snapdata}" + log_success_msg "found snapshot ${snap_type} device on ${dev}" + if echo "${dev}" | grep -qs loop + then + # strange things happens, user confused? + snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' ) + snapfile=$(basename ${snaploop}) + snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts) + else + snapdev="${dev}" + fi + + if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" + then + log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)" + return 1 + else + if [ -n "${snapfile}" ] + then + # it was a loop device, user confused + umount ${snapdev} + fi + fi + else + log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)" + return 1 + fi + + if [ -z ${PERSISTENCE_READONLY} ] + then + echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt + fi + return 0 +} diff --git a/scripts/boot/toram-todisk.sh b/scripts/boot/toram-todisk.sh new file mode 100755 index 0000000..6164dee --- /dev/null +++ b/scripts/boot/toram-todisk.sh @@ -0,0 +1,102 @@ +#!/bin/sh + +copy_live_to () +{ + copyfrom="${1}" + copytodev="${2}" + copyto="${copyfrom}_swap" + + if [ -z "${MODULETORAM}" ] + then + size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "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 [ "${copytodev}" = "ram" ] + then + # copying to ram: + freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo) + mount_options="-o size=${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 + log_warning_msg "${copytodev} is not a block device." + return 1 + fi + fi + + if [ "${freespace}" -lt "${size}" ] + then + log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}." + return 1 + fi + + # Custom ramdisk size + if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ] + then + # FIXME: should check for wrong values + mount_options="-o size=${ramdisk_size}" + fi + + # begin copying (or uncompressing) + mkdir "${copyto}" + log_begin_msg "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 + if [ -x /bin/rsync ] + then + echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console + rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module + else + cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module + fi + else + if [ -x /bin/rsync ] + then + echo " * Copying whole medium to RAM" 1>/dev/console + rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console # "cp -a" from busybox also copies hidden files + else + mkdir -p ${copyto}/${LIVE_MEDIA_PATH} + cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH} + if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ] + then + cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto} + fi + fi + fi + + umount ${copyfrom} + mount -r -o move ${copyto} ${copyfrom} + fi + + rmdir ${copyto} + return 0 +} |