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image.bbclass: change IMAGE_EXTRA_SPACE to IMAGE_OVERHEAD_FACTOR 

This change allows the IMAGE_OVERHEAD_FACTOR (default to 1.2) to
adjust dynamicly how much space to add for each image, thus there
is 20% overhead space by default.

Signed-off-by: Saul Wold <Saul.Wold@intel.com>
This commit is contained in:
Saul Wold 2010-09-08 16:25:25 -07:00
parent 7400ece674
commit 1f65837e78
2 changed files with 6 additions and 2 deletions
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2
meta/classes/image.bbclass
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@ -128,7 +128,7 @@ fakeroot do_rootfs () {
${IMAGE_PREPROCESS_COMMAND}
ROOTFS_SIZE=`du -ks ${IMAGE_ROOTFS}|awk '{size = ${IMAGE_EXTRA_SPACE} + $1; print (size > ${IMAGE_ROOTFS_SIZE} ? size : ${IMAGE_ROOTFS_SIZE}) }'`
ROOTFS_SIZE=`du -ks ${IMAGE_ROOTFS}|awk '{size = $1 * ${IMAGE_OVERHEAD_FACTOR}; print (size > ${IMAGE_ROOTFS_SIZE} ? size : ${IMAGE_ROOTFS_SIZE}) }'`
${@get_imagecmds(d)}
${IMAGE_POSTPROCESS_COMMAND}

6
meta/conf/bitbake.conf
View File

@ -317,7 +317,11 @@ IMAGE_ROOTFS = "${WORKDIR}/rootfs"
IMAGE_BASENAME = "${PN}"
IMAGE_NAME = "${IMAGE_BASENAME}-${MACHINE}-${DATETIME}"
IMAGE_LINK_NAME = "${IMAGE_BASENAME}-${MACHINE}"
IMAGE_EXTRA_SPACE ?= 81920
# This option allows for a precentage overage of the actaul image size rather than a
# fixed extra space
IMAGE_OVERHEAD_FACTOR ?= 1.2
# Comment this option if you want default genext2fs behavior (i.e. create minimal inode number)
IMAGE_EXTRA_OPTION ?= "-i 8192"