Re: [gentoo-catalyst] Re: [gentoo-releng] Seek for your advices : Make Gentoo LiveCD for ppc64le

[Jorge Manuel B. S. Vicetto]

On Tue, 3 Nov 2015, Kevin Zhao wrote:

> Hi Brian & all,
>      Now I have successfully made livecd-stage1, compiled some packages
> such as app-misc/livecd-tools. After that , I'm working on building gentoo
> livecd-stage2 for ppc64le. Now I have a problem and needs your help :-)
>
>      In the file: catalyst/examples/livecd-stage2_template.spec , I see "The
> cdtar is essentially the bootloader for the CD.  It also holds the
> main configuration
> for the bootloader".

We've been talking about how to improve this as we're basically using a 
binary in the catalyst package to build the CD instead of building it from 
source.

> Also I see in the releng/
> releases/weekly/specs/ppc/ppc64/installcd-stage2-minimal.spec , in the the
> livecd/cdtar is yaboot,but yaboot  has not been used in ppc64le . *Now the
> bootloader of ppc64le iso is almost Grub*. I have a  problem:
>       When I decompressed
> the catalyst/livecd/cdtar/grub-memtest86+-cdtar.tar.bz2 , get the
> consequence:
>          boot/
>          boot/grub/
>          boot/grub/stage2_eltorito
>          boot/memtest86
> The grub is the binary . So If I want to use the grub , how could I build
> from the grub source files and replace the grub here? What are the
> essential files of grub used here?
>       Really Appreciate for your help ~ Big Big Big thanks ~

I can share with you some scripts I've used to build the cdtar for 
myself[1].
IIRC, I've used it to update the cdtar in catalyst sometime ago.
These have quite a few hardcoded paths, make a few assumptions and are 
meant for building the cdtar for x86 / amd64, but they might be able to 
give you some ideas.

  [1] - http://www.jmbsvicetto.name/build-cdtar.tar.xz

> Best Regards ,
> Kevin

Regards,
Jorge