On Wednesday 11 July 2007, takasi-y@... wrote:
>  Could someone please tell me how to build stages from scratch?

catalyst is used to build all stages [natively], from scratch is done by hand 
at the moment

> I mean, I want to have gentoo installed into the new target that does
> not have binary stage[123] released.
>
> Precisely, my target is sh3/sh4-nofpu, sh(SuperH) variant which has
> no floating point arith. I know sh is not really new, but these
> can not execute current sh (experimental)release, which is sh4 binary.

we dont exactly have a document covering initial porting ... about the closest 
we have so far is:
http://dev.gentoo.org/~vapier/PORTING-HOWTO

i guess i should add some sections for how to bootstrap yourself using 
Gentoo ...

> Now I'm trying to cross-build stage1 by xmerging each packages on PC.
> But, It seems that I have to stop xmerging prematually, because there
> are some packages which are difficult to cross build (like perl).
> Perhaps, I will continue build natively with the incomplete stage
> (stage0.5?) on the target, later.
>
> I wonder if it is right way or not.
> What it should be? How really were currently released stages built?

it's fine if you skip some packages like perl ... the critical things really 
are the toolchain (gcc/binutils/libc), portage (so python too), and the 
lowlevel utils (baselayout/gawk/sed/grep/etc...)

once you have those, you should be able to boot up natively and finish doing 
`emerge` on the sh3 machine
-mike