Re: [Ltib] how does one generate a combined initramfs.cpio.gz image with an uImage under ltib

[Stuart Hughes]

Hi Jim,

I understand the problem.  Unfortunately I've not had time to look into 
this though.

The problem is that in a "typical situation" the kernel wants it 
filesystem blown out and available to turn info a cpio image and then 
linked in.  However in a situation where you want the rootfs to be the 
initrams, this is not possible as you have not yet built it.

I believe LTIB correctly builds the initramfs cpio image.  The remaining 
problem is to get the kernel to recognise this when it boots.  I had 
hoped you could load and pass this to the bootloader (u-boot) and have 
it picked up in the same way that ext2.gz ramdisks are, but this doesn't 
 seem to work.  Alternatively maybe it's possible to take the raw 
kernel pieces and "link" the together to build the composite monolithic 
image.

Anyhow I've not much experience with this, so these are just ideas.  It 
would be great to hear from anyone who has good a better idea of how to 
do this.

Regards, Stuart

Newell, James C. wrote:
> Hello,
>
> Any suggestions/hints on how to handle generating a combined
> initramfs.cpio image with a kernel uImage under ltib.  The kernel
> build system links the initramfs.cpio file but ltib executes the
> kernel spec first then builds the initramfs file.  It's a classic
> chicken/egg problem.
>
> Regards,
>
> Jim