Re: [PATCH 1/1] image.bbclass: depends on virtual/kernel

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Fri, 2013-11-22 at 11:41 +0000, Phil Blundell wrote:
> On Fri, 2013-11-22 at 13:39 +0800, Qi.Chen@windriver.com wrote:
> > Add 'virtual/kernel' to DEPENDS in image.bbclass so that the kernel
> > can get built by default. Otherwise, the kernel will not get built
> > unless it's required by other packages like v86d. As a result, if
> > we build 'core-image-minimal' for qemumips, the kernel is not built,
> > and we have 'bitbake linux-yocto' before we can use runqemu to start
> > the target.
> 
> Not all images do actually need a kernel, and this will cause a
> dependency loop for old-style initramfs images that are dependencies of
> virtual/kernel itself.
> 
> If you just want to ensure that the kernel is available at deployment
> time, perhaps you could make virtual/kernel be a dependency of do_deploy
> specifically (rather than do_configure as you have it here).
> Alternatively, if this is a specific problem for core-image-minimal,
> maybe the virtual/kernel dependency should just go in there.

I think it just happens that core-image-minimal doesn't install any
kernel modules so shows the symptoms.

The best thing to do here is probably have a dependency on specifically
on virtual/kernel:do_deploy since anyone building an image would usually
want to trigger that. I appreciate there are some cases where you
wouldn't but those are in a minority.

Cheers,

Richard