[oe] Generating slightly different images for different IMAGE_FSTYPES

[Denys Dmytriyenko]

On Fri, Feb 26, 2010 at 10:07:41AM -0700, Tom Rini wrote:
> On Fri, 2010-02-26 at 17:54 +0100, Marcin Juszkiewicz wrote:
> > Dnia pi??tek, 26 lutego 2010 o 17:39:16 Martin Jansa napisa??(a):
> > 
> > > We're slowly stripping packages not really needed, but it would be
> > > nice to remove whole /boot with kernel-image.
> > 
> > > Is there better way to solve it or should we try harder to save space
> > >  somewhere else?
> > 
> > Learn about ROOTFS_POSTPROCESS_COMMAND variable present in 
> > classes/rootfs_*.bbclass files. You can use it to launch your function after 
> > rootfs is populated.
> > 
> > So for example your shr-lite-image has drop_kernel_from_boot function in which 
> > you check "MACHINE==om-gta01" and if it is then "rm -rf /boot/uImage". After 
> > your function all normal ext2/ubifs/jffs2/tarball images will be created 
> > without kernel in them.
> 
> Or (as there's a number of ways to do this):
> PACKAGE_REMOVE = "kernel-image-*"
> ROOTFS_POSTPROCESS_COMMAND_om-gta01 += "opkg-cl ${IPKG_ARGS}
> -force-depends \
>                                 remove ${PACKAGE_REMOVE};"

This worked for me:

RDEPENDS_kernel-base = ""


As kernel.bbclass suggests the following:

# Allow machines to override this dependency if kernel image files are
# not wanted in images as standard
RDEPENDS_kernel-base ?= "kernel-image"

-- 
Denys