diff options
| author |   Jason Wessel <jason.wessel@windriver.com> | 2013-09-17 13:32:18 +0000 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-09-26 17:27:23 +0100 |
| commit | 808d4371939ec48ed62e0c0b6614b96d61b1f7b8 (patch) | |
| tree | 1a29e6b1e16f101e2a879b16413755777a33a6b8 /meta/classes | |
| parent | cf2fba810a8a59cff71bf2c12e516e9080146604 (diff) | |
| download | openembedded-core-contrib-808d4371939ec48ed62e0c0b6614b96d61b1f7b8.tar.gz | |
bootimage.bbclass, zisofs-tools-native: add ability to compress ISO images
The mkzftree is needed to allow ISO images to be compressed with
minimal runtime overhead. Below is an example of the savings on a
core-image-minimal.
Before ls -l:
24117248 core-image-minimal-qemux86-64.iso
Using the mkzftree ls -l:
16777216 core-image-minimal-qemux86-64.iso
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/classes')
| -rw-r--r-- | meta/classes/bootimg.bbclass | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/meta/classes/bootimg.bbclass b/meta/classes/bootimg.bbclass index fdd4ea9561..c61c4e985e 100644 --- a/meta/classes/bootimg.bbclass +++ b/meta/classes/bootimg.bbclass @@ -19,13 +19,15 @@ # External variables (also used by syslinux.bbclass) # ${INITRD} - indicates a filesystem image to use as an initrd (optional) +# ${COMPRESSISO} - Transparent compress ISO, reduce size ~40% if set to 1 # ${NOISO} - skip building the ISO image if set to 1 # ${NOHDD} - skip building the HDD image if set to 1 # ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional) do_bootimg[depends] += "dosfstools-native:do_populate_sysroot \ mtools-native:do_populate_sysroot \ - cdrtools-native:do_populate_sysroot" + cdrtools-native:do_populate_sysroot \ + ${@oe.utils.ifelse(d.getVar('COMPRESSISO'),'zisofs-tools-native:do_populate_sysroot','')}" PACKAGES = " " EXCLUDE_FROM_WORLD = "1" @@ -33,6 +35,8 @@ EXCLUDE_FROM_WORLD = "1" HDDDIR = "${S}/hddimg" ISODIR = "${S}/iso" EFIIMGDIR = "${S}/efi_img" +COMPACT_ISODIR = "${S}/iso.z" +COMPRESSISO ?= "0" BOOTIMG_VOLUME_ID ?= "boot" BOOTIMG_EXTRA_SPACE ?= "512" @@ -97,18 +101,32 @@ build_iso() { install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin ${ISODIR}${ISOLINUXDIR} fi + if [ "${COMPRESSISO}" = "1" ] ; then + # create compact directory, compress iso + mkdir -p ${COMPACT_ISODIR} + mkzftree -z 9 -p 4 -F ${ISODIR}/rootfs.img ${COMPACT_ISODIR}/rootfs.img + + # move compact iso to iso, then remove compact directory + mv ${COMPACT_ISODIR}/rootfs.img ${ISODIR}/rootfs.img + rm -Rf ${COMPACT_ISODIR} + mkisofs_compress_opts="-R -z -D -l" + else + mkisofs_compress_opts="-r" + fi + if [ "${PCBIOS}" = "1" ] && [ "${EFI}" != "1" ] ; then # PCBIOS only media mkisofs -V ${BOOTIMG_VOLUME_ID} \ -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.iso \ - -b ${ISO_BOOTIMG} -c ${ISO_BOOTCAT} -r \ + -b ${ISO_BOOTIMG} -c ${ISO_BOOTCAT} \ + $mkisofs_compress_opts \ ${MKISOFS_OPTIONS} ${ISODIR} else # EFI only OR EFI+PCBIOS mkisofs -A ${BOOTIMG_VOLUME_ID} -V ${BOOTIMG_VOLUME_ID} \ -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.iso \ -b ${ISO_BOOTIMG} -c ${ISO_BOOTCAT} \ - -r ${MKISOFS_OPTIONS} \ + $mkisofs_compress_opts ${MKISOFS_OPTIONS} \ -eltorito-alt-boot -eltorito-platform efi \ -b efi.img -no-emul-boot \ ${ISODIR} |