[Cbe-oss-dev] Plain yaboot port on PS3

[Geert Uytterhoeven]

On Mon, 23 Mar 2009, Jeremy Kerr wrote:
> > But it will stil be OpenWRT-based?
> 
> Nothing about the petitboot sources is based on OpenWRT. We use OpenWRT 
> to construct the petitboot builds, because it's a relatively easy method 
> of building a small system from scratch.
> 
> How there's nothing stopping you doing the same with whatever 
> built/root-fs system that Debian uses, and shipping a petitboot build 
> using that.

To create your own PS3 bootloader from scratch:
  - Create an application (to be launched instead of /sbin/init) that scans
    devices, reads kboot.conf/yaboot.conf, and kexecs a new kernel
  - Put the application in an initramfs
  - Build a PS3 kernel with this initramfs
  - Write dtbImage.ps3.bin.gz to FLASH

It may sound a bit over-simplistic, but that's it ;-)

With kind regards,

Geert Uytterhoeven
Software Architect

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