udevinfo='udevinfo'
fi
+root_overlay_label="full-ov"
+old_root_overlay_label="live-rw"
+old_home_overlay_label="home-rw"
+custom_overlay_label="custom-ov"
+root_snapshot_label="live-sn"
+old_root_snapshot_label="live-sn"
+home_snapshot_label="home-sn"
+persistence_list="live.persist"
+
+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="${ARGUMENT#fetch=}"
+ export FETCH
+ ;;
+
+ forcepersistentfsck)
+ FORCEPERSISTENTFSCK="Yes"
+ export FORCEPERSISTENTFSCK
+ ;;
+
+ ftpfs=*)
+ FTPFS="${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
+ ;;
+
+ nfscow=*)
+ NFS_COW="${ARGUMENT#nfscow=}"
+ export NFS_COW
+ ;;
+
+ noaccessibility)
+ NOACCESSIBILITY="Yes"
+ export NOACCESSIBILITY
+ ;;
+
+ nofastboot)
+ NOFASTBOOT="Yes"
+ export NOFASTBOOT
+ ;;
+
+ nofstab)
+ NOFSTAB="Yes"
+ export NOFSTAB
+ ;;
+
+ nonetworking)
+ NONETWORKING="Yes"
+ export NONETWORKING
+ ;;
+
+ ramdisk-size=*)
+ ramdisk_size="${ARGUMENT#ramdisk-size=}"
+ ;;
+
+ swapon)
+ SWAPON="Yes"
+ export SWAPON
+ ;;
+
+ persistent)
+ PERSISTENT="Yes"
+ export PERSISTENT
+ ;;
+
+ persistent-encryption=*)
+ PERSISTENT_ENCRYPTION="${ARGUMENT#*=}"
+ export PERSISTENT_ENCRYPTION
+ ;;
+
+ persistent-media=*)
+ PERSISTENT_MEDIA="${ARGUMENT#*=}"
+ export PERSISTENT_MEDIA
+ ;;
+ persistent-method=*)
+ PERSISTENT_METHOD="${ARGUMENT#*=}"
+ export PERSISTENT_METHOD
+ ;;
+
+ persistent-path=*)
+ PERSISTENT_PATH="${ARGUMENT#persistent-path=}"
+ export PERSISTENT_PATH
+ ;;
+ persistent-read-only)
+ PERSISTENT_READONLY="Yes"
+ export PERSISTENT_READONLY
+ ;;
+
+ persistent-storage=*)
+ PERSISTENT_STORAGE="${ARGUMENT#persistent-storage=}"
+ export PERSISTENT_STORAGE
+ ;;
+
+ persistent-subtext=*)
+ root_overlay_label="${root_overlay_label}-${ARGUMENT#persistent-subtext=}"
+ old_root_overlay_label="${old_root_overlay_label}-${ARGUMENT#persistent-subtext=}"
+ old_home_overlay_label="${old_home_overlay_label}-${ARGUMENT#persistent-subtext=}"
+ custom_overlay_label="${custom_overlay_label}-${ARGUMENT#persistent-subtext=}"
+ root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
+ old_root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
+ home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
+ ;;
+
+ nopersistent)
+ NOPERSISTENT="Yes"
+ export NOPERSISTENT
+ ;;
+
+ noprompt)
+ NOPROMPT="Yes"
+ export NOPROMPT
+ ;;
+
+ noprompt=*)
+ NOPROMPT="${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 "${UNIONTYPE}" ]
+ then
+ UNIONTYPE="aufs"
+ export UNIONTYPE
+ fi
+
+ if [ -z "${PERSISTENT_ENCRYPTION}" ]
+ then
+ PERSISTENT_ENCRYPTION="none"
+ export PERSISTENT_ENCRYPTION
+ elif echo ${PERSISTENT_ENCRYPTION} | grep -qe "\<luks\>"
+ then
+ if ! modprobe dm-crypt
+ then
+ log_warning_msg "Unable to load module dm-crypt"
+ PERSISTENT_ENCRYPTION=$(echo ${PERSISTENT_ENCRYPTION} | sed -e 's/\<luks,\|,\?luks$//g')
+ export PERSISTENT_ENCRYPTION
+ fi
+
+ if [ ! -x /lib/cryptsetup/askpass ] || [ ! -x /sbin/cryptsetup ]
+ then
+ log_warning_msg "cryptsetup in unavailable"
+ PERSISTENT_ENCRYPTION=$(echo ${PERSISTENT_ENCRYPTION} | sed -e 's/\<luks,\|,\?luks$//g')
+ export PERSISTENT_ENCRYPTION
+ fi
+ fi
+
+ if [ -z "${PERSISTENT_METHOD}" ]
+ then
+ PERSISTENT_METHOD="snapshot,overlay"
+ export PERSISTENT_METHOD
+ fi
+
+ if [ -z "${PERSISTENT_STORAGE}" ]
+ then
+ PERSISTENT_STORAGE="filesystem,file"
+ export PERSISTENT_STORAGE
+ fi
+}
+
sys2dev ()
{
sysdev=${1#/sys}
opts="${opts} --readonly"
fi
+ if /sbin/cryptsetup status "${name}" >/dev/null 2>&1
+ then
+ re="^[[:space:]]*device:[[:space:]]*\([^[:space:]]*\)$"
+ opened_dev=$(cryptsetup status ${name} 2>/dev/null | grep "${re}" | sed "s|${re}|\1|")
+ if [ "${opened_dev}" = "${dev}" ]
+ then
+ luks_device="/dev/mapper/${name}"
+ echo ${luks_device}
+ return 0
+ else
+ log_warning_msg "Cannot open luks device ${dev} since ${opened_dev} already is opened with its name"
+ return 1
+ fi
+ fi
+
load_keymap
while true
done
}
+get_gpt_name () {
+ local dev="${1}"
+ /sbin/blkid -s PART_ENTRY_NAME -p -o value ${dev} 2>/dev/null
+}
+
+is_gpt_device () {
+ local dev="${1}"
+ [ "$(/sbin/blkid -s PART_ENTRY_SCHEME -p -o value ${dev} 2>/dev/null)" = "gpt" ]
+}
+
+probe_for_gpt_name ()
+{
+ local overlays="${1}"
+ local snapshots="${2}"
+ local dev="${3}"
+
+ if ! is_gpt_device ${dev} || \
+ ( echo ${PERSISTENT_ENCRYPTION} | grep -qve "\<luks\>" && \
+ /sbin/cryptsetup isLuks ${dev} > /dev/null 2>&1 )
+ then
+ return
+ fi
+ for label in ${overlays} ${snapshots}
+ do
+ if [ "$(get_gpt_name ${dev})" = "${label}" ]
+ then
+ echo "${label}=${dev}"
+ fi
+ done
+}
+
+probe_for_fs_label () {
+ local overlays="${1}"
+ local snapshots="${2}"
+ local dev="${3}"
+
+ for label in ${overlays} ${snapshots}
+ do
+ if [ "$(/sbin/blkid -s LABEL -o value $dev 2>/dev/null)" = "${label}" ]
+ then
+ echo "${label}=${dev}"
+ fi
+ done
+}
+
+probe_for_file_name () {
+ local overlays="${1}"
+ local snapshots="${2}"
+ local dev="${3}"
+
+ local devfstype="$(get_fstype ${dev})"
+ local backing="${rootmnt}/live/persistent/$(basename ${dev})"
+ local ret=""
+ if is_supported_fs ${devfstype} && mkdir -p "${backing}" && \
+ try_mount "${dev}" "${backing}" "rw" "${devfstype}"
+ then
+ for label in ${overlays}
+ do
+ path=${backing}/${PERSISTENT_PATH}${label}
+ if [ -f "${path}" ]
+ then
+ local loopdev=$(setup_loop "${path}" "loop" "/sys/block/loop*")
+ ret="${ret} ${label}=${loopdev}"
+ fi
+ done
+ for label in ${snapshots}
+ do
+ for ext in squashfs cpio.gz ext2 ext3 ext4 jffs2
+ do
+ path="${PERSISTENT_PATH}${label}.${ext}"
+ if [ -f "${backing}/${path}" ]
+ then
+ ret="${ret} ${label}=${dev}:${backing}:${path}"
+ fi
+ done
+ done
+
+ if [ -n "${ret}" ]
+ then
+ echo ${ret}
+ else
+ umount ${backing} > /dev/null 2>&1 || true
+ fi
+ fi
+}
+
find_persistent_media ()
{
# Scans devices for overlays and snapshots, and returns a whitespace
# ${white_list_devices} is non-empty, only devices in it will be
# scanned.
- overlays="${1}"
- snapshots="${2}"
- black_listed_devices="${3}"
- white_listed_devices="${4}"
+ local overlays="${1}"
+ local snapshots="${2}"
+ local white_listed_devices="${3}"
+ local ret=""
- for dev in $(storage_devices "${black_listed_devices}" "${white_listed_devices}")
+ for dev in $(storage_devices "" "${white_listed_devices}")
do
- luks_device=""
-
- # Checking for a luks device
+ local result=""
+
+ local real_dev=""
+ local luks_device=""
+ # Check if it's a luks device; we'll have to open the device
+ # in order to probe any filesystem it contains, like we do
+ # below. do_custom_mounts() also depends on that any luks
+ # device already has been opened.
if echo ${PERSISTENT_ENCRYPTION} | grep -qe "\<luks\>" && \
- /sbin/cryptsetup isLuks ${dev}
+ /sbin/cryptsetup isLuks ${dev} >/dev/null 2>&1
then
if luks_device=$(open_luks_device "${dev}")
then
+ real_dev="${dev}"
dev="${luks_device}"
else
# skip $dev since we failed/chose not to open it
continue
fi
+ # Probe for matching GPT partition names or filesystem labels
if echo ${PERSISTENT_STORAGE} | grep -qe "\<filesystem\>"
then
- for label in ${overlays} ${snapshots}
- do
- if [ "$(/sbin/blkid -s LABEL -o value $dev 2>/dev/null)" = "${label}" ]
- then
- overlays=$(echo ${overlays} | sed -e "s|\<${label}\>||")
- snapshots=$(echo ${snapshots} | sed -e "s|\<${label}\>||")
- echo "${label}=${dev}"
- # skip to the next device
- continue 2
- fi
- done
+ local gpt_dev="${dev}"
+ if [ -n "${luks_device}" ]
+ then
+ # When we probe GPT partitions we need to look
+ # at the real device, not the virtual, opened
+ # luks device
+ gpt_dev="${real_dev}"
+ fi
+ result=$(probe_for_gpt_name "${overlays}" "${snapshots}" ${gpt_dev})
+ if [ -n "${result}" ]
+ then
+ ret="${ret} ${result}"
+ continue
+ fi
+
+ result=$(probe_for_fs_label "${overlays}" "${snapshots}" ${dev})
+ if [ -n "${result}" ]
+ then
+ ret="${ret} ${result}"
+ continue
+ fi
fi
+ # Probe for files with matching name on mounted partition
if echo ${PERSISTENT_STORAGE} | grep -qe "\<file\>"
then
- devfstype="$(get_fstype ${dev})"
- overlay_on_dev=""
- snapshot_on_dev=""
- backing="/$(basename ${dev})-backing"
- mkdir -p "${backing}"
- if is_supported_fs ${devfstype} && try_mount "${dev}" "${backing}" "rw" "${devfstype}"
+ result=$(probe_for_file_name "${overlays}" "${snapshots}" ${dev})
+ if [ -n "${result}" ]
then
- for label in ${overlays}
- do
- path=${backing}/${PERSISTENT_PATH}${label}
- if [ -f "${path}" ]
- then
- overlays=$(echo ${overlays} | sed -e "s|\<${label}\>||")
- overlay_on_dev="yes"
- echo "${label}=$(setup_loop "${path}" "loop" "/sys/block/loop*")"
- fi
- done
-
- for label in ${snapshots}
- do
- for ext in squashfs cpio.gz ext2 ext3 ext4 jffs2
- do
- path="${PERSISTENT_PATH}${label}.${ext}"
- if [ -f "${backing}/${path}" ]
- then
- snapshots=$(echo ${snapshots} | sed -e "s|\<${label}\>||")
- snapshot_on_dev="yes"
- echo "${label}=${dev}:${backing}:${path}"
- fi
- done
- done
- fi
- if [ -z "${overlay_on_dev}" ]
- then
- umount ${backing} > /dev/null 2>&1 || true
- if [ -z "${snapshot_on_dev}" ] && [ -n "${luks_device}" ] && /sbin/cryptsetup status "${luks_device}" 1> /dev/null
- then
- /sbin/cryptsetup luksClose "${luks_device}"
- fi
+ ret="${ret} ${result}"
+ continue
fi
fi
+
+ # Close luks device if it isn't used
+ if [ -z "${result}" ] && [ -n "${luks_device}" ] && \
+ /sbin/cryptsetup status "${luks_device}" 1> /dev/null 2>&1
+ then
+ /sbin/cryptsetup luksClose "${luks_device}"
+ fi
done
+
+ if [ -n "${ret}" ]
+ then
+ echo ${ret}
+ fi
}
get_mac ()
then
mkdir -p "${dest}"
prev="$(dirname "${dest}")"
- chown $(stat -c %u:%g "${prev}") "${dest}"
- chmod $(stat -c %a "${prev}") "${dest}"
+ chown --reference "${prev}" "${dest}"
+ chmod --reference "${prev}" "${dest}"
fi
link_files "${src}" "${dest}" "${src_mask}"
else
then
continue
fi
+
local device_name="$(basename ${device})"
- local backing="${persistent_backing}/${device_name}"
- mkdir -p "${backing}"
- local device_fstype="$(get_fstype ${device})"
- if [ -z "${PERSISTENT_READONLY}" ]
+ local device_used=""
+ # $device may already have been mounted by
+ # probe_for_file_name() in find_persistent_media() ...
+ local backing=$(where_is_mounted ${device})
+ if [ -z "${backing}" ]
then
- device_mount_opts="rw,noatime"
- else
- device_mount_opts="ro,noatime"
+ # ... otherwise we mount it now
+ backing="${persistent_backing}/${device_name}"
+ mkdir -p "${backing}"
+ local device_fstype="$(get_fstype ${device})"
+ if [ -z "${PERSISTENT_READONLY}" ]
+ then
+ device_mount_opts="rw,noatime"
+ else
+ device_mount_opts="ro,noatime"
+ fi
+ if ! mount -t "${device_fstype}" -o "${device_mount_opts}" "${device}" "${backing}" >/dev/null 2>&1
+ then
+ log_warning_msg "Could not mount persistent media ${device} (${device_fstype})"
+ fi
fi
- local device_used=""
- mount -t "${device_fstype}" -o "${device_mount_opts}" "${device}" "${backing}"
local include_list="${backing}/${persistence_list}"
if [ ! -r "${include_list}" ]
then
- umount "${backing}"
- rmdir "${backing}"
+ umount "${backing}" >/dev/null 2>&1
+ rmdir "${backing}" >/dev/null 2>&1
+ if /sbin/cryptsetup status ${device_name} >/dev/null 2>&1
+ then
+ /sbin/cryptsetup luksClose "${device_name}"
+ fi
continue
fi
# We sort the list according to destination so we're sure that
# we won't hide a previous mount. We also ignore duplicate
# destinations in a more or less arbitrary way.
- [ -e "${bindings}" ] && sort -k2 -sbu ${bindings} >> ${custom_mounts}
- rm ${bindings}
+ [ -e "${bindings}" ] && sort -k2 -sbu ${bindings} >> ${custom_mounts} && rm ${bindings}
# After all mounts are considered we add symlinks so they
# won't be hidden by some mount.
- [ -e "${links}" ] && sort -k2 -sbu ${links} >> ${custom_mounts}
- rm ${links}
-
- rm -f ${bindings} ${links} 2> /dev/null
- echo ${custom_mounts}
+ [ -e "${links}" ] && sort -k2 -sbu ${links} >> ${custom_mounts} && rm ${links}
}
do_custom_mounts () {
export PERSISTENCE_IS_ON
done < ${custom_mounts}
}
+
+fix_home_rw_compatibility ()
+{
+ local device=${1}
+
+ if [ -n "${PERSISTENT_READONLY}" ]
+ then
+ return
+ fi
+
+ local backing="$(where_is_mounted ${device})"
+ if [ -z "${backing}" ]
+ then
+ backing="${rootmnt}/live/persistent/$(basename ${device})"
+ mkdir -p "${backing}"
+ local device_fstype="$(get_fstype ${device})"
+ local device_mount_opts="rw,noatime"
+ if ! mount -t "${device_fstype}" -o "${device_mount_opts}" "${device}" "${backing}" >/dev/null 2>&1
+ then
+ return
+ fi
+
+ local include_list="${backing}/${persistence_list}"
+ if [ ! -r "${include_list}" ]
+ then
+ echo "# home-rw backwards compatibility:
+. /home" > "${include_list}"
+ fi
+}
projects / live-boot-grml.git / blobdiff