Subject: Re: Building pkgsrc for alternative arch or OS rev?
To: Chris Ross <firstname.lastname@example.org>
From: Eric Haszlakiewicz <email@example.com>
Date: 01/24/2005 15:40:14
On Sun, Dec 26, 2004 at 08:12:49PM -0500, Chris Ross wrote:
> Hi. My main development machine is an i386 running -current.
> I have a few machines that are much slower that are providing most of my
> services. Is there a [good] way to build against the obj trees that I
> built on this same build machine, so that the pkgsrc binaries are built
> run on an alternative arch, or an alternative version of NetBSD?
Use null and union mounts combined with chroot.
Here's what I've got in my fstab:
/usr/pkgsrc.current /space/netbsd/image-current/usr/pkgsrc null rw 0 0
/usr/pkgsrc.base /space/netbsd/image-current/usr/pkgsrc union -b,rw 0 0
/pkgsrc null rw 0 0
/usr/pkgsrc.base /space/netbsd/image-netbsd-2-0/usr/pkgsrc union -b,rw 0 0
/usr/pkgsrc.base is the actual checked-out pkgsrc tree.
/usr/pkgsrc.current and /space/netbsd/image-netbsd-2-0/usr/pkgsrc.2.0
are storage location for files created while building for -current and
/space/netbsd/image-netbsd-2-0 and .../image-current are _destdir_
locations, not obj trees. (i.e. untar the sets there)
I also null mount another directory into each one of the chroots and set
/usr/pkgsrc/distfiles to be a symlink pointing to that directory. That
way I don't end up with multiple downloads of the same sources.
(that's the path as seen from _within_ the chroot)
To build packages for -netbsd-2 I do this:
rm -r /space/.../usr/pkgsrc.2.0/*
Build the packages