Raspi2-3_GenImage Commit - r138:9cc6bc7aa1ed · Collaboration Tremplin des Sciences

Add IMAGE_NAME

Denis Mosolov -

r138:9cc6bc7aa1ed

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README.md +4 -1

              #### Build settings:
              ##### `BASEDIR`=$(pwd)/images/${RELEASE}
-             Path to a directory where the script stores all temporary files during generating the image.
+             Set a path to a working directory used by the script to generate an image.
+             ##### `IMAGE_NAME`=${BASEDIR}/${DATE}-rpi${RPI_MODEL}-${RELEASE}
+             Set a filename for the output file(s). Note: the script will create $IMAGE_NAME.img if `ENABLE_SPLITFS`=false or $IMAGE_NAME-frmw.img and $IMAGE_NAME-root.img if `ENABLE_SPLITFS`=true.
              ## Understanding the script
              The functions of this script that are required for the different stages of the bootstrapping are split up into single files located inside the `bootstrap.d` directory. During the bootstrapping every script in this directory gets executed in lexicographical order:

rpi23-gen-image.sh +22 -22

              # Build directories
              BASEDIR=${BASEDIR:=$(pwd)/images/${RELEASE}}
              BUILDDIR="${BASEDIR}/build"
+             # Prepare date string for default image file name
+             DATE="$(date +%Y-%m-%d)"
+             IMAGE_NAME=${IMAGE_NAME:=${BASEDIR}/${DATE}-rpi${RPI_MODEL}-${RELEASE}}
              # Chroot directories
              R="${BUILDDIR}/chroot"
              # Calculate required image size in 512 Byte sectors
              IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS})
-             # Prepare date string for image file name
-             DATE="$(date +%Y-%m-%d)"
              # Prepare image file
              if [ "$ENABLE_SPLITFS" = true ] ; then
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS}
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS}
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS}
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME-frmw.img" bs=512 count=${TABLE_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME-root.img" bs=512 count=${TABLE_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME-root.img" bs=512 count=0 seek=${ROOT_SECTORS}
                # Write firmware/boot partition tables
-               sfdisk -q -L -uS -f "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img" 2> /dev/null <<EOM
+               sfdisk -q -L -uS -f "$IMAGE_NAME-frmw.img" 2> /dev/null <<EOM
              ${TABLE_SECTORS},${FRMW_SECTORS},c,*
              EOM
                # Write root partition table
-               sfdisk -q -L -uS -f "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img" 2> /dev/null <<EOM
+               sfdisk -q -L -uS -f "$IMAGE_NAME-root.img" 2> /dev/null <<EOM
              ${TABLE_SECTORS},${ROOT_SECTORS},83
              EOM
                # Setup temporary loop devices
-               FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img)"
-               ROOT_LOOP="$(losetup -o 1M -f --show $BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img)"
+               FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $IMAGE_NAME-frmw.img)"
+               ROOT_LOOP="$(losetup -o 1M -f --show $IMAGE_NAME-root.img)"
              else # ENABLE_SPLITFS=false
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img" bs=512 count=${TABLE_SECTORS}
-               dd if=/dev/zero of="$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME.img" bs=512 count=${TABLE_SECTORS}
+               dd if=/dev/zero of="$IMAGE_NAME.img" bs=512 count=0 seek=${IMAGE_SECTORS}
                # Write partition table
-               sfdisk -q -L -uS -f "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img" 2> /dev/null <<EOM
+               sfdisk -q -L -uS -f "$IMAGE_NAME.img" 2> /dev/null <<EOM
              ${TABLE_SECTORS},${FRMW_SECTORS},c,*
              ${ROOT_OFFSET},${ROOT_SECTORS},83
              EOM
                # Setup temporary loop devices
-               FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img)"
-               ROOT_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img)"
+               FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $IMAGE_NAME.img)"
+               ROOT_LOOP="$(losetup -o 65M -f --show $IMAGE_NAME.img)"
              fi
              if [ "$ENABLE_CRYPTFS" = true ] ; then
              # Create block map file(s) of image(s)
              if [ "$ENABLE_SPLITFS" = true ] ; then
                # Create block map files for "bmaptool"
-               bmaptool create -o "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.bmap" "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img"
-               bmaptool create -o "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.bmap" "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img"
+               bmaptool create -o "$IMAGE_NAME-frmw.bmap" "$IMAGE_NAME-frmw.img"
+               bmaptool create -o "$IMAGE_NAME-root.bmap" "$IMAGE_NAME-root.img"
                # Image was successfully created
-               echo "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
-               echo "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
+               echo "$IMAGE_NAME-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
+               echo "$IMAGE_NAME-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
              else
                # Create block map file for "bmaptool"
-               bmaptool create -o "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.bmap" "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img"
+               bmaptool create -o "$IMAGE_NAME.bmap" "$IMAGE_NAME.img"
                # Image was successfully created
-               echo "$BASEDIR/${DATE}-rpi${RPI_MODEL}-${RELEASE}.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
+               echo "$IMAGE_NAME.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
              fi

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