[yocto] How to proceed with kernel-fitimage and INITRAMFS_IMAGE

[Rick Altherr]

Krogoth (2.1.1) doesn't include the changes required to build a fitImage 
with an initramfs.  Specifically, it lacks 
ec755d2524fcbd9dfded23a576f25c990d405a6c 
<http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=ec755d2524fcbd9dfded23a576f25c990d405a6c> 
which is only submitted to master.  From 
https://www.mail-archive.com/yocto@yoctoproject.org/msg31779.html, it 
looks like those changes will show up in the upcoming 2.2.

I've been testing those changes in OpenBMC 
<https://github.com/openbmc/openbmc> (Krogoth-based) and can 
successfully generate a fitImage with an initramfs.  Currently, 
kernel-fitimage.bbclass only stores an uncompressed initramfs which is 
problematic for the SoC I'm working on.  In short, even once 2.2 is 
released, fitImage w/ initramfs may not quite work for you yet.

Rick

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