[OE-core] adding a single package to an image -- what's the proper way?

[Christopher Larson]

I IMAGE_INSTALL_append or IMAGE_INSTALL_append_pn-core-image-minimal or whatever when I need to quickly add a package temporarily, myself.

-- 
Christopher Larson


On Tuesday, March 27, 2012 at 7:42 PM, Denys Dmytriyenko wrote:

> On Tue, Mar 27, 2012 at 08:27:02PM +0100, Paul Eggleton wrote:
> > On Tuesday 27 March 2012 08:20:11 Robert P. J. Day wrote:
> > > i'm currently poring over the OE docs (including the ones at the
> > > yocto site), and i'm trying to figure out how to simply add a package
> > > to an image through one's local.conf file.
> > > 
> > > the current yocto ref manual has an entire section about customizing
> > > images:
> > > 
> > > http://www.yoctoproject.org/docs/current/poky-ref-manual/poky-ref-manual.htm
> > > l#usingpoky-extend-customimage
> > > 
> > > but it discusses creating custom recipe files and custom tasks, and
> > > using IMAGE_INSTALL and IMAGE_FEATURES and EXTRA_IMAGE_FEATURES, and
> > > finally gets into using local.conf, suggesting:
> > > 
> > > DISTRO_EXTRA_RDEPENDS += "strace"
> > > 
> > > is that, in fact, the accepted way if one simply wants to add a
> > > package to an existing image build? because as soon as the manual
> > > mentions it, in the very next paragraph, it discourages its use.
> > > 
> > 
> > 
> > Well, this clearly does not make sense if that's the way it is presented. 
> > 
> > The real answer to this question is it depends on why you're adding the 
> > package.
> > 
> > 1) If you just want to add a single package temporarily for testing, use 
> > CORE_IMAGE_EXTRA_INSTALL += in local.conf (although I really wish we could 
> > make this mechanism more generic so that it applies to any image, not just the 
> > ones in OE-Core).
> > 
> > 2) If you want to add something permanently for every (non-minimal) image 
> > produced using your DISTRO, set DISTRO_EXTRA_RDEPENDS in your distro 
> > configuration. This will come into your image via task-distro-base which is 
> > pulled in by task-base. I don't think we should be advocating doing anything 
> > with DISTRO_EXTRA_RDEPENDS via local.conf.
> > 
> > 3) If you're adding it permanently for a single image, consider whether adding 
> > your own custom image recipe would be more appropriate. FWIW, I don't think 
> > bbappends for recipes are a good idea.
> > 
> 
> 
> All these options don't cover one more need - temporarily adding one or more 
> packages to a single specific image via local.conf. Both option 1) and 2) do 
> it too broadly to several/all images... And the only option is to go with more 
> permanent way in 3) by adding own image recipe.
> 
> -- 
> Denys
> 
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