[yocto] Kernel Panic: /sbin/init not found

[Smith, Virgil]

> > OK, it turned out that prepending the space before lib32-connman does
> > not do any good. However, commenting out the line which contains the
> > IMAGE_INSTALL_append does. That begs the question; what does
> > lib32-connman do?
>
> It's not lib32-connman that's the problem. The problem is that you were
> effectively setting the value of IMAGE_INSTALL to something and the default in
> core-image.bbclass is being set with ?= , and because it's already set at the time
> the ?= is parsed, the defaults (including the chain leading to
> sysvinit/systemd) are not being added, among many other packages. If you use
> IMAGE_INSTALL_append rather than IMAGE_INSTALL (or use a proper image
> recipe instead of appending to IMAGE_INSTALL from local.conf) you shouldn't
> have a problem.

You can't use IMAGE_INSTALL_append from local.conf (as you already confirmed).  You will have to "use a proper image recipe" (as Paul Eggleton also suggested).  I too ran afoul of this recently.

The Yocto layer/configuration composition is non-intuitive.  It is easy to expect items in local.conf to 'override/extend' the configuration resulting from your layer selections in bblayers.conf, but this is not what happens.  I'd personally prefer local.conf to be processed AFTER the conf/layer.conf and conf/machine/some-name.conf files, but at the very least bb needs to know the selected machine first.  So to tune/tweak things you need a file up front (local.conf) and a file at the other end (a custom recipe and/or layer).

Also, don't think that the ordering of layers in your bblayers.conf file (alone) determines the overlaying/replacement of matching bb/bbappend, inc, or source/patch files.


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