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

[Smith, Virgil]

> This is not true in the general case. You definitely can use
> IMAGE_INSTALL_append with a leading space to add items to an image, I just
> verified that now.
>
> I'm not clear on exactly what happened in the case we're discussing, at least
> initially it sounded like IMAGE_INSTALL = rather than IMAGE_INSTALL_append =
> was being used, which would definitely account for the behaviour described.

Digging.... testing.... reading....
I don't know what happened in Chan Kit's case, but it looks like my earlier trouble was using IMAGE_INSTALL +=  from inside local.conf.  IMAGE_INSTALL_append isn't applied until after parsing completes.  So here is one (or rather the) way to overcome the fact that local.conf is *parsed* too early for extending variables/configuration introduced later in the *parsing* chain.

So, my earlier statement that you can't use/rely on IMAGE_INSTALL_append from local.conf is flat wrong.

> The precedence of bb files and order of application of bbappends is controlled
> primarily by layer priorities; the order that layers appear in bblayers.conf
> shouldn't come into that (although it may if you have layers that have exactly
> the same priority set). The order of layers in bblayers.conf can influence the
> order in which bbclass and inc files are found *where files of the same name
> exist across different layers*, since these are found using BBPATH, which is
> prepended or appended to by each layer.conf file and thus the order in which
> those files are parsed is significant.

Thanks Paul, I wasn't sure I had the whole story.

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