Add an /etc/fstab to the initramfs to silence harmless "empty fstab" warnings.
[live-boot-grml.git] / scripts / live
index 3428cca..656039a 100755 (executable)
@@ -65,6 +65,16 @@ Arguments ()
                                export HOOK
                                ;;
 
+                       ftpfs=*)
+                               FTPFS="${ARGUMENT#ftpfs=}"
+                               export FTPFS
+                               ;;
+
+                       httpfs=*)
+                               HTTPFS="${ARGUMENT#httpfs=}"
+                               export HTTPFS
+                               ;;
+
                        hostname=*)
                                HOSTNAME="${ARGUMENT#hostname=}"
                                LIVECONF="changed"
@@ -446,7 +456,7 @@ Arguments ()
 
        if [ -z "${UNIONTYPE}" ]
        then
-               UNIONTYPE="unionfs"
+               UNIONTYPE="aufs"
                export UNIONTYPE
        fi
 }
@@ -479,7 +489,7 @@ matches_uuid ()
        path="${1}"
        uuid="$(cat /conf/uuid.conf)"
 
-       for try_uuid_file in "${mountpoint}/.disk/casper-uuid"*
+       for try_uuid_file in "${mountpoint}/.disk/live-uuid"*
        do
                [ -e "${try_uuid_file}" ] || continue
 
@@ -498,7 +508,7 @@ get_backing_device ()
 {
        case "${1}" in
                *.squashfs|*.ext2|*.ext3|*.jffs2)
-                       echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}")
+                       echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
                        ;;
 
                *.dir)
@@ -551,6 +561,9 @@ is_nice_device ()
        if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"
        then
                return 0
+       elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
+       then
+               return 0
        fi
 
        return 1
@@ -594,14 +607,14 @@ copy_live_to ()
                        fstype=$(get_fstype "${dev}")
                        freespace=$(fs_size "${dev}")
                else
-                       [ "$quiet" != "y" ] && log_warning_msg "${copytodev} is not a block device."
+                       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}."
+               log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
                return 1
        fi
 
@@ -640,8 +653,16 @@ do_netmount ()
 
        modprobe -q af_packet # For DHCP
 
-       udevtrigger
-       udevsettle
+       if [ -x /sbin/udevadm ]
+       then
+               # lenny
+               udevadm trigger
+               udevadm settle
+       else
+               # etch
+               udevtrigger
+               udevsettle
+       fi
 
        ipconfig ${DEVICE} | tee /netboot.config
 
@@ -656,7 +677,7 @@ do_netmount ()
                NFSROOT=${ROOTSERVER}:${ROOTPATH}
        fi
 
-       if [ -n "${FETCH}" ] && do_httpmount
+       if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) && do_httpmount
        then
                rc=0
                return ${rc}
@@ -667,7 +688,7 @@ do_netmount ()
                NFSROOT=${ROOTSERVER}:${NFSROOT}
        fi
 
-       [ "${quiet}" != "y" ] && log_begin_msg "Trying netboot from ${NFSROOT}"
+       log_begin_msg "Trying netboot from ${NFSROOT}"
 
        if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
        then
@@ -679,27 +700,68 @@ do_netmount ()
                rc=0
        fi
 
-       [ "${quiet}" != "y" ] && log_end_msg
+       log_end_msg
        return ${rc}
 }
 
 do_httpmount ()
 {
        rc=1
-       extension=$(echo "${FETCH}" | sed 's/\(.*\)\.\(.*\)/\2/')
-
-       case "${extension}" in
-               squashfs|tgz|tar)
-                       [ "${quiet}" != "y" ] && log_begin_msg "Trying wget ${FETCH} -O ${mountpoint}/$(basename ${FETCH})"
-                       mkdir -p "${mountpoint}/${LIVE_MEDIA_PATH}"
-                       wget "${FETCH}" -O "${mountpoint}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
-                       [ ${?} -eq 0 ] && rc=0
-                       [ "${extension}" = "tgz" ] && live_dest="ram"
-                       ;;
+       dest="${mountpoint}/${LIVE_MEDIA_PATH}"
+       mount -t ramfs ram "${mountpoint}"
+       mkdir -p "${dest}"
 
-               *)
-                       [ "${quiet}" != "y" ] && log_begin_msg "Unrecognized archive extension for ${FETCH}"
-       esac
+       for webfile in HTTPFS FTPFS FETCH
+       do
+               url="$(eval echo \"\$\{${webfile}\}\")"
+               extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
+
+               if [ -n "$url" ]
+               then
+                       case "${extension}" in
+                               squashfs|tgz|tar)
+                                       if [ "${webfile}" = "FETCH" ]
+                                       then
+                                               case "$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
+                                                       ;;
+
+                                                       *)
+                                                               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}"
+                                       fi
+                                       [ ${?} -eq 0 ] && rc=0
+                                       [ "${extension}" = "tgz" ] && live_dest="ram"
+                                       break
+                                       ;;
+
+                               *)
+                                       log_begin_msg "Unrecognized archive extension for ${url}"
+                                       ;;
+                       esac
+               fi
+       done
+
+       if [ ${rc} != 0 ]
+       then
+           umount "${mountpoint}"
+       fi
 
        return ${rc}
 }
@@ -715,7 +777,7 @@ do_nfsmount ()
                NFSOPTS=""
        fi
 
-       [ "${quiet}" != "y" ] && log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
+       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
@@ -740,7 +802,7 @@ do_cifsmount ()
                        CIFSOPTS="${NFSOPTS}"
                fi
 
-               [ "${quiet}" != "y" ] && log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
+               log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
                modprobe -q cifs
 
                if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
@@ -800,7 +862,7 @@ do_snap_copy ()
        else
                return 1
 
-               [ "${quiet}" != "y" ] && log_warning_msg "Unable to find the snapshot ${snap_type} medium"
+               log_warning_msg "Unable to find the snapshot ${snap_type} medium"
        fi
 }
 
@@ -832,7 +894,7 @@ try_snap ()
                        fi
                else
                        # cpio.gz snapshot
-                       if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio -i -u -d 2>/dev/null)
+                       if ! (cd "${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 ${snapfile} Snapshot"
                                return 1
@@ -965,7 +1027,12 @@ setup_unionfs ()
                        rofslist="${image} ${rofslist}"
                elif [ -f "${image}" ]
                then
-                       backdev=$(get_backing_device "${image}")
+                       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" ]
@@ -993,8 +1060,16 @@ setup_unionfs ()
                        modprobe -q -b ${module}
                done
 
-               udevtrigger
-               udevsettle
+               if [ -x /sbin/udevadm ]
+               then
+                       # lenny
+                       udevadm trigger
+                       udevadm settle
+               else
+                       # etch
+                       udevtrigger
+                       udevsettle
+               fi
 
                # For some reason, udevsettle does not block in this scenario,
                # so we sleep for a little while.
@@ -1016,10 +1091,12 @@ setup_unionfs ()
                then
                        cowdevice=${cowprobe}
                        cow_fstype=$(get_fstype "${cowprobe}")
+                       cow_mountopt="rw,noatime"
                else
-                       [ "${quiet}" != "y" ] && log_warning_msg "Unable to find the persistent medium"
+                       log_warning_msg "Unable to find the persistent medium"
                        cowdevice="tmpfs"
                        cow_fstype="tmpfs"
+                       cow_mountopt="rw,noatime,mode=755"
                fi
        elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
        then
@@ -1043,16 +1120,17 @@ setup_unionfs ()
        else
                cowdevice="tmpfs"
                cow_fstype="tmpfs"
+               cow_mountopt="rw,noatime,mode=755"
        fi
 
        if [ "${cow_fstype}" = "nfs" ]
        then
-               [ "${quiet}" != "y" ] && log_begin_msg \
+               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 || \
+               mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
                        panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
        fi
 
@@ -1087,6 +1165,7 @@ setup_unionfs ()
        fi
 
        # tmpfs file systems
+       touch /etc/fstab
        mkdir -p "${rootmnt}/live"
        mount -t tmpfs tmpfs ${rootmnt}/live
 
@@ -1102,7 +1181,7 @@ setup_unionfs ()
                        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"
+                       log_warning_msg "Unable to find the persistent home medium"
                fi
 
                # Look for other snapshots to copy in
@@ -1130,7 +1209,7 @@ setup_unionfs ()
 
        # shows cow fs on /cow for use by live-snapshot
        mkdir -p "${rootmnt}/live/cow"
-       mount -o move /cow "${rootmnt}/live/cow"
+       mount -o move /cow "${rootmnt}/live/cow" || mount -o bind /cow "${rootmnt}/live/cow" || log_warning_msg "Unable to move or bind /cow to ${rootmnt}/live/cow"
 }
 
 check_dev ()
@@ -1144,12 +1223,6 @@ check_dev ()
                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
@@ -1163,6 +1236,12 @@ check_dev ()
                fi
        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 ${fstype}
@@ -1269,19 +1348,22 @@ mountroot ()
        tail -f live.log >&7 &
        tailpid="${!}"
 
+       # Ensure 'panic' function is overridden
+       . /scripts/live-functions
+
        Arguments
 
        set_usplash_timeout
-       [ "${quiet}" != "y" ] && log_begin_msg "Running /scripts/live-premount"
+       log_begin_msg "Running /scripts/live-premount"
        run_scripts /scripts/live-premount
-       [ "${quiet}" != "y" ] && log_end_msg
+       log_end_msg
 
        # Needed here too because some things (*cough* udev *cough*)
        # changes the timeout
 
        set_usplash_timeout
 
-       if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ]
+       if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
        then
                if do_netmount
                then
@@ -1342,10 +1424,10 @@ mountroot ()
        log_end_msg
 
        maybe_break live-bottom
-       [ "${quiet}" != "y" ] && log_begin_msg "Running /scripts/live-bottom"
+       log_begin_msg "Running /scripts/live-bottom"
 
        run_scripts /scripts/live-bottom
-       [ "${quiet}" != "y" ] && log_end_msg
+       log_end_msg
 
        exec 1>&6 6>&-
        exec 2>&7 7>&-