Forwardporting and extending usage of rsync when booting with toram based on a patch...
[live-boot-grml.git] / scripts / live
index d125eae..0fa3900 100755 (executable)
@@ -71,6 +71,11 @@ Arguments ()
                                 export FETCH
                                 ;;
 
+                       forcepersistentfsck)
+                               FORCEPERSISTENTFSCK="Yes"
+                               export FORCEPERSISTENTFSCK
+                               ;;
+
                        hook=*)
                                HOOK="${ARGUMENT#hook=}"
                                export HOOK
@@ -345,6 +350,13 @@ Arguments ()
                                export PERSISTENT_PATH
                                ;;
 
+                       persistent-subtext=*)
+                               root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}"
+                               home_persistence="${home_persistence}-${ARGUMENT#persistent-subtext=}"
+                               root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
+                               home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
+                               ;;
+
                        nopersistent)
                                NOPERSISTENT="Yes"
                                export NOPERSISTENT
@@ -599,7 +611,7 @@ is_nice_device ()
 {
        sysfs_path="${1#/sys}"
 
-       if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-(ide|scsi|usb))"
+       if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-)"
        then
                return 0
        elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
@@ -618,7 +630,7 @@ copy_live_to ()
 
        if [ -z "${MODULETORAM}" ]
        then
-               size=$(fs_size "" ${copyfrom} "used")
+               size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
        else
                MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 
@@ -661,7 +673,7 @@ copy_live_to ()
 
        # begin copying (or uncompressing)
        mkdir "${copyto}"
-       echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
+       log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
        mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 
        if [ "${extension}" = "tgz" ]
@@ -674,9 +686,22 @@ copy_live_to ()
        else
                if [ -n "${MODULETORAMFILE}" ]
                then
-                       cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
+                       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
-                       cp -a ${copyfrom}/* ${copyto}   # "cp -a" from busybox also copies hidden files
+                       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}   # "cp -a" from busybox also copies hidden files
+                       fi
                fi
 
                umount ${copyfrom}
@@ -773,9 +798,11 @@ do_httpmount ()
                                        then
                                                case "$url" in
                                                        tftp*)
-                                                               ip="$(dirname $url | sed -e 's|tftp://||g')"
-                                                               log_begin_msg "Trying tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip"
-                                                               tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip
+                                                               ip="$(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
                                                        ;;
 
                                                        *)
@@ -925,7 +952,7 @@ find_snap ()
        if [ "${PERSISTENT}" != "nofiles" ]
        then
                # search for image files
-               snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snal_label}.ext4 ${snap_label}.jffs2")
+               snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.ext4 ${snap_label}.jffs2")
        fi
 
        if [ -z "${snapdata}" ]
@@ -944,7 +971,7 @@ try_snap ()
        snap_mount="${2}"
        snap_type="${3}"
 
-       if [ ! -z "${snapdata}" ]
+       if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
        then
                log_success_msg "found snapshot: ${snapdata}"
                snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
@@ -983,12 +1010,11 @@ try_snap ()
                        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 device on ${dev}"
+               log_success_msg "found snapshot ${snap_type} device on ${dev}"
                if echo "${dev}" | grep -qs loop
                then
                        # strange things happens, user confused?
@@ -1049,37 +1075,26 @@ setup_unionfs ()
                roopt="ro"
        fi
 
-       # Read image names from ${MODULE}.module if it exists
-       if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
+       if [ -z "${PLAIN_ROOT}" ]
        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}"
+               # 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
-                               if [ -e "${IMAGE}" ]
-                               then
-                                       image_string="${image_string} ${IMAGE}"
-                               fi
+                               image_string="${image_string} ${image_directory}/${IMAGE}"
                        done
-               done
-
-               if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
+               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
+                       # ${MODULE}.module does not exist, create a list of images
                        for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
                        do
-                               for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
+                               for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
                                do
                                        if [ -e "${IMAGE}" ]
                                        then
@@ -1087,58 +1102,80 @@ setup_unionfs ()
                                        fi
                                done
                        done
-               fi
 
-               # Now sort the list
-               image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
-       fi
+                       if [ -n "${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 "${croot}"
+               mkdir -p "${croot}"
 
-       for image in ${image_string}
-       do
-               imagename=$(basename "${image}")
+               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
+                       export image devname
+                       maybe_break live-realpremount
+                       log_begin_msg "Running /scripts/live-realpremount"
+                       run_scripts /scripts/live-realpremount
+                       log_end_msg
 
-               if [ -d "${image}" ]
-               then
-                       # it is a plain directory: do nothing
-                       rofsstring="${image}=${roopt}:${rofsstring}"
-                       rofslist="${image} ${rofslist}"
-               elif [ -f "${image}" ]
-               then
-                       if losetup --help 2>&1 | grep -q -- "-r\b"
+                       if [ -d "${image}" ]
                        then
-                               backdev=$(get_backing_device "${image}" "-r")
-                       else
-                               backdev=$(get_backing_device "${image}")
-                       fi
-                       fstype=$(get_fstype "${backdev}")
-
-                       if [ "${fstype}" = "unknown" ]
+                               # it is a plain directory: do nothing
+                               rofsstring="${image}=${roopt}:${rofsstring}"
+                               rofslist="${image} ${rofslist}"
+                       elif [ -f "${image}" ]
                        then
-                               panic "Unknown file system type on ${backdev} (${image})"
-                       fi
+                               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 [ -z "${fstype}" ]
-                       then
-                               fstype="${imagename##*.}"
-                               log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
-                       fi
+                               if [ "${fstype}" = "unknown" ]
+                               then
+                                       panic "Unknown file system type on ${backdev} (${image})"
+                               fi
 
-                       mkdir -p "${croot}/${imagename}"
-                       log_begin_msg "Mounting \"${image}\" on \"${croot}${imagename}\" via \"${backdev}\""
-                       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} ${rofslist}"
-                       log_end_msg
-               fi
-       done
+                               if [ -z "${fstype}" ]
+                               then
+                                       fstype="${imagename##*.}"
+                                       log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
+                               fi
+
+                               mkdir -p "${croot}/${imagename}"
+                               log_begin_msg "Mounting \"${image}\" on \"${croot}${imagename}\" via \"${backdev}\""
+                               mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
+                               log_end_msg
+                       fi
+               done
+       else
+               # we have a plain root system
+               mkdir -p "${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 ${croot}/filesystem" && rofsstring="${croot}/filesystem=${roopt}:${rofsstring}" && rofslist="${croot}/filesystem ${rofslist}"
+               # probably broken:
+               mount -o bind ${croot}/filesystem $mountpoint
+               log_end_msg
+       fi
 
        rofsstring=${rofsstring%:}
 
@@ -1209,6 +1246,11 @@ setup_unionfs ()
                        cowdevice=${cowprobe}
                        cow_fstype=$(get_fstype "${cowprobe}")
                        cow_mountopt="rw,noatime"
+
+                       if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
+                       then
+                               fsck -y ${cowdevice}
+                       fi
                else
                        log_warning_msg "Unable to find the persistent medium"
                        cowdevice="tmpfs"
@@ -1285,6 +1327,9 @@ setup_unionfs ()
                        ${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}"
        fi
 
+       # Correct the permissions of /:
+       chmod 0755 "${rootmnt}"
+
        # tmpfs file systems
        touch /etc/fstab
        mkdir -p "${rootmnt}/live"
@@ -1402,26 +1447,30 @@ find_livefs ()
 
        # first look at the one specified in the command line
        case "${LIVE_MEDIA}" in
-               removable)
+               removable-usb)
                        for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
                        do
                                if [ "$(cat ${sysblock}/removable)" = "1" ]
                                then
-                                       for dev in $(subdevices "${sysblock}")
-                                       do
-                                               if check_dev "${dev}"
-                                               then
-                                                       return 0
-                                               fi
-                                       done
+                                       if readlink ${sysblock} | grep -q usb ||
+                                          readlink ${sysblock}/device | grep -q usb # linux < 2.6.29
+                                       then
+                                               for dev in $(subdevices "${sysblock}")
+                                               do
+                                                       if check_dev "${dev}"
+                                                       then
+                                                               return 0
+                                                       fi
+                                               done
+                                       fi
                                fi
                        done
                        ;;
 
-               removable-usb)
+               removable)
                        for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
                        do
-                               if [ "$(cat ${sysblock}/removable)" = "1" ] && readlink ${sysblock}/device | grep -q usb
+                               if [ "$(cat ${sysblock}/removable)" = "1" ]
                                then
                                        for dev in $(subdevices "${sysblock}")
                                        do
@@ -1606,7 +1655,7 @@ mountroot ()
                log_end_msg
        fi
 
-       if [ -n "${MODULETORAMFILE}" ]
+       if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
        then
                setup_unionfs "${livefs_root}" "${rootmnt}"
        else