If you build an extensible SDK for an image and IMAGE_FSTYPES includes "live" (which is the default with MACHINE = "genericx86-64") then the extensible SDK will fail to install with a bunch of unexpected task execution errors, matching the missing items required to build the live image.
I have a fix for this but I'm now blocked by a "Taskhash mismatch" error on install :(
OK, figured the latter out - the initramfs image was going into the locked signatures and it should not have been. I've sent patches for both problems.
Fixes merged to master: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=c7ab9f3ca15f7067e637f8e981b74dc05d7a9a55 http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=23ae622a69d174216461d9570945e21a8aa865ff