Question / issue

Paul McGougan <PMcGougan@...>

Hi all.


We are currently using Poky 1.5.0.


We have created our own custom layer for our powerpc-based board.


We are running u-boot as our bootloader and want to use the new FIT (FDT) style kernel/dtb image blob.


To that end, in our custom layer we have a file poky/meta-OURS/recipes-kernel/linux/linux-yocto_3.10.bbappend, and in that file I have a function do_install_append() in which I call u-boot’s mkimage passing it the kernel and DTB files that we want stored in the FIT image that we will use to boot from u-boot.


My first question is, is there a better place to be making the FIT image?


As a side-question to that, I was surprised that there isn’t native support already for creating this type of u-boot image considering how useful it is, does anyone know if there is a specific reason no one has done this yet?


Secondly, (and this is our main issue) I have found that by adding the do_install_append function, even if it is completely empty, whenever I try to bitbake anything that depends on the kernel, that bitbake always re-runs the kernel install stage, even when there have been no changes. Literally I can run a bitbake, then run the same bitbake command again, and both times the kernel install stage gets run (this is a problem because it takes a long time to run). It appears to be happening because the stampfile is not found every time (the hash appears to be wrong). Is this a bug? Is there a fix or work-around for this problem?





Confidentiality Notice: This message (including attachments) is a private communication solely for use of the intended recipient(s). If you are not the intended recipient(s) or believe you received this message in error, notify the sender immediately and then delete this message. Any other use, retention, dissemination or copying is prohibited and may be a violation of law, including the Electronic Communication Privacy Act of 1986."   ­­  

Join to automatically receive all group messages.