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List:       gentoo-dev
Subject:    [gentoo-dev] Re: Re: [Fwd: [gentoo-admin] Building a second system]
From:       "Arnold deVos" <adv () langdale ! com ! au>
Date:       2003-01-06 5:12:36
[Download RAW message or body]

Nope, as explained earlier in the thread that wouldn't get the benefits of
having gcc optimized for the athlon.  It would not work at all to build
packages for an incompatible arch such as P4.

- Arnold


"Bart Verwilst" <verwilst@gentoo.org> wrote in message
news:200301060304.47202.verwilst@gentoo.org...
> Euhm.. Isn't it much easier to just for example:
>
> mkdir /mnt/my_new_system
> cd /mnt_my_new_system
> tar -xvjpf /path/to/stagex-i486-1.4_rc2.tbz2
> mount -o bind /proc /mnt/my_new_system/proc
> mount -o bind /usr/portage /mnt/my_new_system/usr/portage
> cp /etc/resolv.conf /mnt/my_new_system/etc
> chroot /mnt/my_new_system  /bin/bash
> env-update
> source /etc/profile
> nano -w /etc/make.conf
>
> and so on...
>
> On Monday 06 January 2003 01:02, Arnold deVos wrote:
> ||  I have exactly the same need.  A powerful Athlon building packages for
a
> || an older 486 or pentium box (eg firewall or other appliance).   I have
> || experimented with the following ideas:
> ||
> ||  1 -
> ||
> ||      - create a /my486Image hierarchy
> ||      - setup the /my486Image/etc/make.conf  for cross compiling.
> ||      - export ROOT=/my486image (instead of /)
> ||      - use emerge from within the host (Athlon) system.
> ||
> ||  Unfortunately emerge seems to touch stuff outside of ROOT such as the
> ||  package db.
> ||
> ||  2 -
> ||
> ||      - create a normal chroot environment for the 486
> ||      - mount the Athlon enviroment within this as /hostAlthonImage.
> ||      - Set the PATH to /hostAthlonImage/bin:/hostAthlonImage/usr/bin
etc
> || etc - use emerge (ie /hostAthlonImage/usr/bin/emerge)
> ||
> ||  The problem is the ld.so library path.   Its tricky to get ld.so to
load
> ||  runtime .so's from /hostAthlonImage and not from the chroot's /usr/lib
> ||
> ||  Of these solutions I think (1) is more promising but looks like I need
to
> ||  check the emerge source to find the gotcha's.
> ||
> ||  It would be really useful if the fakeroot emerge facility mentioned by

> ||  drobbins on the gentoo frontpage was available.  (I can't find it.
Anyone
> ||  know how to use this feature?)
> ||
> ||
> ||  - Arnold
> ||
> ||  "John Nilsson" <john@milsson.nu> wrote in message
> ||  news:1041689680.27164.65.camel@newkid.milsson.nu...
> ||
> ||  > If I do it this way I would have to compile an entire bootstrap
> ||  > environment for the 486. Also I wouldn't get the benefits of having
gcc
> ||  > optimized for the athlon.
> ||  > What I would like is to write a simple script to use when upgrading
the
> ||  > server. Change the makefile and compile 486 optimized staticly
linked
> ||  > binaries to packages that are later merged into the server.
> ||  >
> ||  > On Sat, 2003-01-04 at 14:52, Timo A. Hummel wrote:
> ||  > > I don't know if it's the correct list, but I did it as follows to
> ||  > > compile a pentium optimized system:
> ||  > >
> ||  > > I plugged in the 4GB hdd of my Pentium system, created the file
> ||  > > systems, setup a chroot environment and did the whole gentoo
install
> ||  > > from there. worked like a charm, which was pretty good since I
don't
> ||  > > have a keyboard on my Pentium system. It's pretty straightforward,
> ||  > > and shouldn't give any problems. Remember to set the make.conf
> ||  > > correctly.
> ||  > >
> ||  > > cheers,
> ||  > >  Timo
> ||  > >
> ||  > > On Sat, 2003-01-04 at 14:01, John Nilsson wrote:
> ||  > > > which is the correct mailing list for this kind of question?
> ||  > > >
> ||  > > >
___________________________________________________________________
> ||  > > >___
> ||  > > >
> ||  > > > From: John Nilsson <john@milsson.nu>
> ||  > > > To: gentoo-admin@gentoo.org
> ||  > > > Subject: [gentoo-admin] Building a second system
> ||  > > > Date: 04 Jan 2003 12:52:51 +0100
> ||  > > >
> ||  > > > I would like to use my current athlon-xp optimized system to
> ||  > > > compile a base system for a 486. How do I go about it?
> ||  > > > I suppose I would have to keep an 486 optimized copy of glibc
> ||
> ||  somewhere, how?
> ||
> ||  > > > It would be nice to have a more or less permanent setup so I can
> ||
> ||  upgrade
> ||
> ||  > > > packages easily later on.
> ||  > > >
> ||  > > > --
> ||  > > > gentoo-admin@gentoo.org mailing list
> ||  > > >
> ||  > > >
> ||  > > >
> ||  > > >
> ||  > > >
___________________________________________________________________
> ||  > > >___
> ||  > > >
> ||  > > > --
> ||  > > > gentoo-dev@gentoo.org mailing list
> ||  > >
> ||  > > --
> ||  > > Timo A. Hummel <timo.hummel@gmx.net>
> ||  > >
> ||  > >
> ||  > > --
> ||  > > gentoo-dev@gentoo.org mailing list
> ||  >
> ||  > --
> ||  > gentoo-dev@gentoo.org mailing list
> ||
> ||  --
> ||  gentoo-dev@gentoo.org mailing list
>
> --
> Bart Verwilst
> Gentoo Linux Developer, Desktop Team
> Gent, Belgium
>
> --
> gentoo-dev@gentoo.org mailing list
>
>





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