Re: [gentoo-dev] sys-build

[Andreas Schweitzer <andy@physast.uga.edu>]

On Sat, Jan 27, 2001 at 06:07:37PM +0100, Achim Gottinger wrote:
> drobbins@gentoo.org wrote:
> 
> > On Sat, Jan 27, 2001 at 04:29:53PM +0100, Achim Gottinger wrote:
> > > Hi Guys,
> > >
> > > Today I build a working sys-build package that includes all the packages
> > > in sys-build, baselayout and portage.

Sounds very interesting.
Where can I find it to try it out ?

> > > This means we now have an environment to which we can chroot and build
> > > everithing else within. (I tested all sys-packages with success, so the
> > > rest should work too).
> > > I used exactly the same dir-layout as in the corresponding sys-*
> > > packages, so nothink statically linked remains
> > > after the corresponding packages are merged over.
> > > It is bigger(130MB, 28MB bzipped) than the 50MB I expectend it to be,
> > > maybe it can be reduced to around 100MB. :-/.
> > > What can we do now?
> > >
> > > 1. This build sytsem can be placed on a bootable cd together with the
> > > sources and the ebuild-tree. We can then
> > > unpack the build.tbz2 instead of the sys.tbz2 to our target partition,
> > > chroot there and build everything.
> >
> > OK, I'm very confused, so please explain how this works.  Also, what

me too :-)

> > prevented us from just extracting sys.tbz2 and chrooting to /mnt/gentoo
> > and building everything?
> 
> Ok, you can use sys.tbz2 too for that but build.tbz2 contains only the
> minimum required stuff, we can even
> place gcc and binutils in separate TARGET dependent packages, so it should be
> possible to make one cd that
> gives you the ability to build for all our intel targets.

But /mnt/gentoo will contain the compiler etc. ?
And it will be overwritten ?
Or at least some of the binaries in /mnt/gentoo ?

> > And I assume that sys-build has nothing extra.  For example, no star, no
> > iptables, etc?  OK, I'm looking at /usr/portage/sys-build as I should
> > have done in the first place.  Beautiful :)  But please explain how the
> > build process is supposed to work (maybe by typing in example command-line
> > build install).
> 
> Ok imagine you have a list of required packages that is sorted in order of
> dependencies
> and a filestructure on the cd that corresponds to that under /usr/portage
> 
> ---------------------------------------
> Mkdir /mnt/gentoo/usr/portage
> mount /dev/cdrom /mnt/gentoo/usr/portage
> cp package-list /mnt/gentoo/root
> vi /mnt/gentoo/etc/make.conf
> chroot /mnt/gentoo
> source /etc/profile
> cd /usr/portage
> for i in 'cat /root/package-list''
> do
>     ebuild $i merge
> done
> ---------------------------------------

A bit clearer. But again, this requires binaries in /mnt/gentoo
that you put there from unpacking build.tbz2 - right ?

And there are no sources in build.tbz2 ?
Those should also be on the CDROM ?
Alternatively, include wget and rsync, and the sources can
be grabbed from the net (if somebody wants to get them from there).

Still a newbie to gentoo - but it looks promising !

Cheers
Andreas

-- 
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