Merge pull request #40 from advancedtelematic/feat/syncagl

Synchronize with AGL's meta-sota progress

6 files changed, 45 insertions, 260 deletions

diff --git a/classes/image_types_ostree.bbclass b/classes/image_types_ostree.bbclass
index 8b3cbcd..59d4510 100644
--- a/classes/image_types_ostree.bbclass
+++ b/classes/image_types_ostree.bbclass
@@ -68,6 +68,10 @@ IMAGE_CMD_ostree () {
                 ln -s ../init.d/tmpfiles.sh usr/etc/rcS.d/S20tmpfiles.sh
         fi
 
+        # Preserve OSTREE_BRANCHNAME for future information
+        mkdir -p usr/share/sota/
+        echo -n "${OSTREE_BRANCHNAME}" > usr/share/sota/branchname
+
         # Preserve data in /home to be later copied to /sysroot/home by
         #   sysroot generating procedure
         mkdir -p usr/homedirs
@@ -122,7 +126,7 @@ IMAGE_CMD_ostree () {
         cp ${DEPLOY_DIR_IMAGE}/${OSTREE_INITRAMFS_IMAGE}-${MACHINE}${RAMDISK_EXT} boot/initramfs-${checksum}
 
         # Copy image manifest
-        cat ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.manifest | cut -d " " -f1,3 > usr/package.manifest
+        cat ${IMAGE_MANIFEST} | cut -d " " -f1,3 > usr/package.manifest
 
         cd ${WORKDIR}
 
@@ -154,6 +158,7 @@ IMAGE_CMD_ostreepush () {
         if [ ${OSTREE_PUSH_CREDENTIALS} ]; then
                 garage-push --repo=${OSTREE_REPO} \
                             --ref=${OSTREE_BRANCHNAME} \
-                            --credentials=${OSTREE_PUSH_CREDENTIALS}
+                            --credentials=${OSTREE_PUSH_CREDENTIALS} \
+                            --cacert=${STAGING_ETCDIR_NATIVE}/ssl/certs/ca-certificates.crt
         fi
 }
diff --git a/classes/image_types_ota.bbclass b/classes/image_types_ota.bbclass
index bee1ea4..74533dd 100644
--- a/classes/image_types_ota.bbclass
+++ b/classes/image_types_ota.bbclass
@@ -9,12 +9,9 @@
 
 inherit image
 
-IMAGE_DEPENDS_otaimg = "e2fsprogs-native:do_populate_sysroot"
-
-# For qemux86 u-boot is not included in any live image and is built separately
-IMAGE_DEPENDS_otaimg_append_qemux86 = " virtual/bootloader:do_deploy"
-IMAGE_DEPENDS_otaimg_append_qemux86-64 = " virtual/bootloader:do_deploy"
-IMAGE_DEPENDS_otaimg_append_corei7-64-intel-common = " virtual/bootloader:do_deploy"
+IMAGE_DEPENDS_otaimg = "e2fsprogs-native:do_populate_sysroot \
+                        ${@'grub:do_populate_sysroot' if d.getVar('OSTREE_BOOTLOADER', True) == 'grub' else ''} \
+                        ${@'virtual/bootloader:do_deploy' if d.getVar('OSTREE_BOOTLOADER', True) == 'u-boot' else ''}"
 
 calculate_size () {
         BASE=$1
@@ -52,6 +49,7 @@ calculate_size () {
 export OSTREE_OSNAME
 export OSTREE_BRANCHNAME
 export OSTREE_REPO
+export OSTREE_BOOTLOADER
 
 IMAGE_CMD_otaimg () {
         if ${@bb.utils.contains('IMAGE_FSTYPES', 'otaimg', 'true', 'false', d)}; then
@@ -76,32 +74,31 @@ IMAGE_CMD_otaimg () {
                 mkdir -p ${PHYS_SYSROOT}/boot/loader.0
                 ln -s loader.0 ${PHYS_SYSROOT}/boot/loader
 
-                touch ${PHYS_SYSROOT}/boot/loader/uEnv.txt
+                if [ "${OSTREE_BOOTLOADER}" = "grub" ]; then
+                        mkdir -p ${PHYS_SYSROOT}/boot/grub2
+                        touch ${PHYS_SYSROOT}/boot/grub2/grub.cfg
+                elif [ "${OSTREE_BOOTLOADER}" = "u-boot" ]; then
+                        touch ${PHYS_SYSROOT}/boot/loader/uEnv.txt
+                else
+                        bberror "Invalid bootloader: ${OSTREE_BOOTLOADER}"
+                fi;
 
                 ostree --repo=${PHYS_SYSROOT}/ostree/repo pull-local --remote=${OSTREE_OSNAME} ${OSTREE_REPO} ${OSTREE_BRANCHNAME}
-                ostree admin --sysroot=${PHYS_SYSROOT} deploy --os=${OSTREE_OSNAME} ${OSTREE_OSNAME}:${OSTREE_BRANCHNAME}
-                
-                # Copy deployment /home to sysroot
+                export OSTREE_BOOT_PARTITION="/boot"
+                kargs_list=""
+                for arg in ${OSTREE_KERNEL_ARGS}; do
+                        kargs_list="${kargs_list} --karg-append=$arg"
+                done
+
+                ostree admin --sysroot=${PHYS_SYSROOT} deploy ${kargs_list} --os=${OSTREE_OSNAME} ${OSTREE_OSNAME}:${OSTREE_BRANCHNAME}
+
+                # Copy deployment /home and /var/sota to sysroot
                 HOME_TMP=`mktemp -d ${WORKDIR}/home-tmp-XXXXX`
-                tar --xattrs --xattrs-include='*' -C ${HOME_TMP} -xf ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.rootfs.ostree.tar.bz2 ./usr/homedirs
-                mv ${HOME_TMP}/usr/homedirs/home ${PHYS_SYSROOT}/
+                tar --xattrs --xattrs-include='*' -C ${HOME_TMP} -xf ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.rootfs.ostree.tar.bz2 ./usr/homedirs ./var/sota || true
+>               mv ${HOME_TMP}/var/sota ${PHYS_SYSROOT}/ostree/deploy/${OSTREE_OSNAME}/var/ || true
+                mv ${HOME_TMP}/usr/homedirs/home ${PHYS_SYSROOT}/ || true
                 rm -rf ${HOME_TMP}
 
-                # Deploy device credentials
-                if [ -n "$SOTA_CREDENTIALS" ]; then
-                        if [ -f "$SOTA_CREDENTIALS" ]; then
-                                EXT=`basename $SOTA_CREDENTIALS | cut -d'.' -f2`
-                                if [ "$EXT" != "toml" ]; then
-                                        bbwarn "File\'s extension is not \'toml\', make sure you have the correct file"
-                                fi
-
-                                cat $SOTA_CREDENTIALS | sed 's/^package_manager = .*$/package_manager = "ostree"/' > ${PHYS_SYSROOT}/boot/sota.toml
-                                chmod 644 ${PHYS_SYSROOT}/boot/sota.toml
-                        else
-                                bberror "File $SOTA_CREDENTIALS does not exist"
-                        fi
-                fi
-
                 # Calculate image type
                 OTA_ROOTFS_SIZE=$(calculate_size `du -ks $PHYS_SYSROOT | cut -f 1`  "${IMAGE_OVERHEAD_FACTOR}" "${IMAGE_ROOTFS_SIZE}" "${IMAGE_ROOTFS_MAXSIZE}" `expr ${IMAGE_ROOTFS_EXTRA_SPACE}` "${IMAGE_ROOTFS_ALIGNMENT}")
 
@@ -118,7 +115,7 @@ IMAGE_CMD_otaimg () {
                 rm -rf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg
                 sync
                 dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg seek=$OTA_ROOTFS_SIZE count=$COUNT bs=1024
-                mkfs.ext4 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg -d ${PHYS_SYSROOT}
+                mkfs.ext4 -O ^64bit ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg -d ${PHYS_SYSROOT}
                 rm -rf ${PHYS_SYSROOT}
 
                 rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.otaimg
diff --git a/classes/sdcard_image-dra7xx-evm-ota.bbclass b/classes/sdcard_image-dra7xx-evm-ota.bbclass
deleted file mode 100644
index f023649..0000000
--- a/classes/sdcard_image-dra7xx-evm-ota.bbclass
+++ /dev/null
@@ -1,72 +0,0 @@
-inherit image_types
-
-# Boot partition volume id
-BOOTDD_VOLUME_ID ?= "${MACHINE}"
-
-# Boot partition size [in KiB] (will be rounded up to IMAGE_ROOTFS_ALIGNMENT)
-BOOT_SPACE ?= "4096"
-
-IMAGE_ROOTFS_ALIGNMENT = "4096"
-SDIMG_OTA_ROOTFS_TYPE ?= "otaimg"
-SDIMG_OTA_ROOTFS = "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${SDIMG_OTA_ROOTFS_TYPE}"
-
-IMAGE_TYPEDEP_dra7xx-evm-sdimg-ota = "${SDIMG_OTA_ROOTFS_TYPE}"
-IMAGE_DEPENDS_dra7xx-evm-sdimg-ota = " \
-                        parted-native \
-                        mtools-native \
-                        dosfstools-native \
-                        "
-
-SDIMG_OTA = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.dra7xx-evm-sdimg-ota"
-
-IMAGE_CMD_dra7xx-evm-sdimg-ota () {
-        OTAROOT_SIZE=`du -Lb ${SDIMG_OTA_ROOTFS} | cut -f1`
-        OTAROOT_SIZE=$(expr ${OTAROOT_SIZE} / 1024 + 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
-        SDIMG_OTA_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $OTAROOT_SIZE)
-
-        echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $OTAROOT_SIZE KiB"
-
-        # Initialize sdcard image file
-        dd if=/dev/zero of=${SDIMG_OTA} bs=1024 count=0 seek=${SDIMG_OTA_SIZE}
-
-        # Create partition table
-        parted -s ${SDIMG_OTA} mklabel msdos
-        # Create boot partition and mark it as bootable
-        parted -s ${SDIMG_OTA} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
-        parted -s ${SDIMG_OTA} set 1 boot on
-        # Create rootfs partition to the end of disk
-        parted -s ${SDIMG_OTA} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
-        parted ${SDIMG_OTA} print
-
-        # Create a vfat image with boot files
-        BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG_OTA} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
-        rm -f ${WORKDIR}/boot.img
-        mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
-        sync
-
-        sync
-        #dd if=${WORKDIR}/boot.img of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-
-        if echo "${SDIMG_OTA_ROOTFS_TYPE}" | egrep -q "*\.xz"
-        then
-                xzcat ${SDIMG_OTA_ROOTFS} | dd of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        else
-                dd if=${SDIMG_OTA_ROOTFS} of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        fi
-
-        # Optionally apply compression
-        case "${SDIMG_OTA_COMPRESSION}" in
-        "gzip")
-                gzip -k9 "${SDIMG_OTA}"
-                ;;
-        "bzip2")
-                bzip2 -k9 "${SDIMG_OTA}"
-                ;;
-        "xz")
-                xz -k "${SDIMG_OTA}"
-                ;;
-        esac
-}
-
diff --git a/classes/sdcard_image-minnowboard-ota.bbclass b/classes/sdcard_image-minnowboard-ota.bbclass
deleted file mode 100644
index c49b3cd..0000000
--- a/classes/sdcard_image-minnowboard-ota.bbclass
+++ /dev/null
@@ -1,78 +0,0 @@
-inherit image_types
-
-# Boot partition volume id
-BOOTDD_VOLUME_ID ?= "${MACHINE}"
-
-# Boot partition size [in KiB] (will be rounded up to IMAGE_ROOTFS_ALIGNMENT)
-BOOT_SPACE ?= "4096"
-
-IMAGE_ROOTFS_ALIGNMENT = "4096"
-SDIMG_OTA_ROOTFS_TYPE ?= "otaimg"
-SDIMG_OTA_ROOTFS = "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${SDIMG_OTA_ROOTFS_TYPE}"
-
-IMAGE_TYPEDEP_minnowboard-sdimg-ota = "${SDIMG_OTA_ROOTFS_TYPE}"
-IMAGE_DEPENDS_minnowboard-sdimg-ota = " \
-                        parted-native \
-                        mtools-native \
-                        dosfstools-native \
-                        minnowboard-bootfiles \
-                        "
-
-SDIMG_OTA = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.minnowboard-sdimg-ota"
-
-IMAGE_CMD_minnowboard-sdimg-ota () {
-        OTAROOT_SIZE=`du -Lb ${SDIMG_OTA_ROOTFS} | cut -f1`
-        OTAROOT_SIZE=$(expr ${OTAROOT_SIZE} / 1024 + 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
-        SDIMG_OTA_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $OTAROOT_SIZE)
-
-        echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $OTAROOT_SIZE KiB"
-
-        # Initialize sdcard image file
-        dd if=/dev/zero of=${SDIMG_OTA} bs=1024 count=0 seek=${SDIMG_OTA_SIZE}
-
-        # Create partition table
-        parted -s ${SDIMG_OTA} mklabel msdos
-        # Create boot partition and mark it as bootable
-        parted -s ${SDIMG_OTA} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
-        parted -s ${SDIMG_OTA} set 1 boot on
-        # Create rootfs partition to the end of disk
-        parted -s ${SDIMG_OTA} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
-        parted ${SDIMG_OTA} print
-
-        # Create a vfat image with boot files
-        BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG_OTA} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
-        rm -f ${WORKDIR}/boot.img
-        mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
-        sync
-
-        mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/minnowboard-bootfiles/* ::/
-
-        sync
-        dd if=${WORKDIR}/boot.img of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-
-        if echo "${SDIMG_OTA_ROOTFS_TYPE}" | egrep -q "*\.xz"
-        then
-                xzcat ${SDIMG_OTA_ROOTFS} | dd of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        else
-                dd if=${SDIMG_OTA_ROOTFS} of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        fi
-
-        # Optionally apply compression
-        case "${SDIMG_OTA_COMPRESSION}" in
-        "gzip")
-                gzip -k9 "${SDIMG_OTA}"
-                ;;
-        "bzip2")
-                bzip2 -k9 "${SDIMG_OTA}"
-                ;;
-        "xz")
-                xz -k "${SDIMG_OTA}"
-                ;;
-        esac
-
-        rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.minnowboard-sdimg-ota
-        ln -s ${IMAGE_NAME}.minnowboard-sdimg-ota ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.minnowboard-sdimg-ota
-}
-
diff --git a/classes/sdcard_image-porter-ota.bbclass b/classes/sdcard_image-porter-ota.bbclass
deleted file mode 100644
index 5909b44..0000000
--- a/classes/sdcard_image-porter-ota.bbclass
+++ /dev/null
@@ -1,78 +0,0 @@
-inherit image_types
-
-# Boot partition volume id
-BOOTDD_VOLUME_ID ?= "${MACHINE}"
-
-# Boot partition size [in KiB] (will be rounded up to IMAGE_ROOTFS_ALIGNMENT)
-BOOT_SPACE ?= "4096"
-
-IMAGE_ROOTFS_ALIGNMENT = "4096"
-SDIMG_OTA_ROOTFS_TYPE ?= "otaimg"
-SDIMG_OTA_ROOTFS = "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${SDIMG_OTA_ROOTFS_TYPE}"
-
-IMAGE_TYPEDEP_porter-sdimg-ota = "${SDIMG_OTA_ROOTFS_TYPE}"
-IMAGE_DEPENDS_porter-sdimg-ota = " \
-                        parted-native \
-                        mtools-native \
-                        dosfstools-native \
-                        porter-bootfiles \
-                        "
-
-SDIMG_OTA = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.porter-sdimg-ota"
-
-IMAGE_CMD_porter-sdimg-ota () {
-        OTAROOT_SIZE=`du -Lb ${SDIMG_OTA_ROOTFS} | cut -f1`
-        OTAROOT_SIZE=$(expr ${OTAROOT_SIZE} / 1024 + 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
-        BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
-        SDIMG_OTA_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $OTAROOT_SIZE)
-
-        echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $OTAROOT_SIZE KiB"
-
-        # Initialize sdcard image file
-        dd if=/dev/zero of=${SDIMG_OTA} bs=1024 count=0 seek=${SDIMG_OTA_SIZE}
-
-        # Create partition table
-        parted -s ${SDIMG_OTA} mklabel msdos
-        # Create boot partition and mark it as bootable
-        parted -s ${SDIMG_OTA} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
-        parted -s ${SDIMG_OTA} set 1 boot on
-        # Create rootfs partition to the end of disk
-        parted -s ${SDIMG_OTA} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
-        parted ${SDIMG_OTA} print
-
-        # Create a vfat image with boot files
-        BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG_OTA} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
-        rm -f ${WORKDIR}/boot.img
-        mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
-        sync
-
-        mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/porter-bootfiles/* ::/
-
-        sync
-        dd if=${WORKDIR}/boot.img of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-
-        if echo "${SDIMG_OTA_ROOTFS_TYPE}" | egrep -q "*\.xz"
-        then
-                xzcat ${SDIMG_OTA_ROOTFS} | dd of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        else
-                dd if=${SDIMG_OTA_ROOTFS} of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
-        fi
-
-        rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.porter-sdimg-ota
-        ln -s ${IMAGE_NAME}.porter-sdimg-ota ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.porter-sdimg-ota
-
-        # Optionally apply compression
-        case "${SDIMG_OTA_COMPRESSION}" in
-        "gzip")
-                gzip -k9 "${SDIMG_OTA}"
-                ;;
-        "bzip2")
-                bzip2 -k9 "${SDIMG_OTA}"
-                ;;
-        "xz")
-                xz -k "${SDIMG_OTA}"
-                ;;
-        esac
-}
-
diff --git a/classes/sdcard_image-rpi-ota.bbclass b/classes/sdcard_image-rpi-ota.bbclass
index cb0c597..f5c35a2 100644
--- a/classes/sdcard_image-rpi-ota.bbclass
+++ b/classes/sdcard_image-rpi-ota.bbclass
@@ -72,6 +72,8 @@ SDIMG_OTA = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.rpi-sdimg-ota"
 # Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS.
 FATPAYLOAD ?= ""
 
+IMAGEDATESTAMP = "${@time.strftime('%Y.%m.%d',time.gmtime())}"
+IMAGE_CMD_rpi-sdimg-ota[vardepsexclude] += "IMAGEDATESTAMP"
 IMAGE_CMD_rpi-sdimg-ota[vardepsexclude] += "DATETIME"
 
 IMAGE_CMD_rpi-sdimg-ota () {
@@ -123,8 +125,10 @@ IMAGE_CMD_rpi-sdimg-ota () {
                 # Copy device tree overlays to dedicated folder
                 mmd -i ${WORKDIR}/boot.img overlays
                 for DTB in ${DT_OVERLAYS}; do
-                        DTB_BASE_NAME=`basename ${DTB} .dtb`
-                        mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${DTB_BASE_NAME}.dtb ::overlays/${DTB_BASE_NAME}.dtbo
+                        DTB_EXT=${DTB##*.}
+                        DTB_BASE_NAME=`basename ${DTB} ."${DTB_EXT}"`
+
+                        mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${DTB_BASE_NAME}.${DTB_EXT} ::overlays/${DTB_BASE_NAME}.${DTB_EXT}
                 done
         fi
 
@@ -145,6 +149,10 @@ IMAGE_CMD_rpi-sdimg-ota () {
                 done
         fi
 
+        # Add stamp file
+        echo "${IMAGE_NAME}-${IMAGEDATESTAMP}" > ${WORKDIR}/image-version-info
+        mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}//image-version-info ::
+
         # Burn Partitions
         sync
         dd if=${WORKDIR}/boot.img of=${SDIMG_OTA} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
@@ -171,6 +179,9 @@ IMAGE_CMD_rpi-sdimg-ota () {
                 xz -k "${SDIMG_OTA}"
                 ;;
         esac
+
+        rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.rootfs.rpi-sdimg-ota
+        ln -s ${IMAGE_NAME}.rootfs.rpi-sdimg-ota ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.rootfs.rpi-sdimg-ota
 }
 
 ROOTFS_POSTPROCESS_COMMAND += " rpi_generate_sysctl_config ; "