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image_types: add IMAGE_ROOTFS_EXTRA_SPACE 

[YOCTO #886]

This address 2 needs after the IMAGE_ROOTFS_SIZE is cleaned up, by
removing the _ext2/3 overrides it allows for a cleaner override
using IMAGE_ROOTFS_SIZE to create a large rootfs, or by setting the
IMAGE_ROOTFS_EXTRA_SPACE, will allow for extra space allocated in Kilobytes
above the base size (determined by du of the rootfs * IMAGE_OVERHEAD_FACTOR,
default of 1.3).

(From OE-Core rev: 367934ada7c081ba3fc95f02dc14c7d6f97bfccb)

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Saul Wold 2011-05-23 23:22:41 -07:00 committed by Richard Purdie
parent 470c0fee68
commit a3d6defd63
2 changed files with 5 additions and 1 deletions
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2
meta/classes/image_types.bbclass
View File

@ -13,7 +13,7 @@ def get_imagecmds(d):
runimagecmd () {
# Image generation code for image type ${type}
ROOTFS_SIZE=`du -ks ${IMAGE_ROOTFS}|awk '{size = $1 * ${IMAGE_OVERHEAD_FACTOR}; print (size > ${IMAGE_ROOTFS_SIZE} ? size : ${IMAGE_ROOTFS_SIZE}) }'`
ROOTFS_SIZE=`du -ks ${IMAGE_ROOTFS}|awk '{size = $1 * ${IMAGE_OVERHEAD_FACTOR} + ${IMAGE_ROOTFS_EXTRA_SPACE}; print (size > ${IMAGE_ROOTFS_SIZE} ? size : ${IMAGE_ROOTFS_SIZE}) }'`
${cmd}
cd ${DEPLOY_DIR_IMAGE}/
rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${type}

4
meta/conf/bitbake.conf
View File

@ -350,6 +350,10 @@ IMAGE_LINK_NAME = "${IMAGE_BASENAME}-${MACHINE}"
# This option allows for a precentage overage of the actaul image size rather than a
# fixed extra space
IMAGE_OVERHEAD_FACTOR ?= 1.3
# This option allow for adding addition space in K above and beyond what the
# IMAGE_OVERHEAD_FACTOR might add. To set a fixed size then overrideing IMAGE_ROOTFS_SIZE
# with the max size one wants should do the trick
IMAGE_ROOTFS_EXTRA_SPACE = "0"
EXTRA_IMAGEDEPENDS = ""