Re: [gentoo-user] preparing for profile switch -- major problem

[John Covici]

On Sun, 10 Dec 2017 08:13:09 -0500,
Alan McKinnon wrote:
>
> On 10/12/2017 14:54, John Covici wrote:
> > On Sun, 10 Dec 2017 07:36:19 -0500,
> > Kent Fredric wrote:
> >>
> >> [1  <text/plain; US-ASCII (quoted-printable)>]
> >> On Sun, 10 Dec 2017 02:17:09 -0500
> >> John Covici <covici@××××××××××.com> wrote:
> >>
> >>> OK, thanks, I think I will try that.
> >>
> >> The problem you're facing is that you masked dev-lang/perl, but not any
> >> virtual/perl-* or perl-core/-* to compensate.
> >>
> >> These 3 components work in concert like a single component, as a sort
> >> of bodge to compensate for the fact portage has no working "provides" feature,
> >> and to compensate for the dependency-system missmatch between how
> >> Gentoo works and how CPAN works.
> >>
> >> Theres' no easy way of fixing this atm, but the short of it is if you're using
> >> an ~arch dev-lang/perl, you should be using an ~arch virtual/perl-*,
> >> and if you're using an "arch" dev-lang/perl, you should be using only
> >> "arch" versions of virtual/perl-*
> >>
> >> Once you do this, portage may still scream at you, because portage is
> >> very much optimised for upgrading, and it tends to think downgrading is
> >> an error.
> >>
> >> So once you get all your masks/keyword changes in place, you should do:
> >>
> >>   emerge -C virtual/perl-*
> >>   emerge -C perl-core/*
> >>
> >> (or something to that effect)
> >>
> >> This looks scary, but generally isn't, because you're not actually removing
> >> anything with this, just juggling a few balls and making only older
> >> versions of certain things available ( as they're alls shipped in
> >> dev-lang/perl )
> >>
> >> And then after you do this, portage is more likely to be persuadable
> >> into doing the right thing.
> >>
> >> You can additionally abuse my tool, gentoo-perl-helpers for doing some of this,
> >> and some of the steps I've described are automated because they're just
> >> that safe and useful.
> >>
> >> https://wiki.gentoo.org/wiki/Perl#app-admin.2Fgentoo-perl-helpers
> >>
> >>
> >> After putting the right masks in place, do:
> >>
> >> 	gentoo-perl gen-upgrade-sets 5.26 5.24
> >>
> >> And if you're really lucky, the sets it generates will work the first time :)
> >>
> >> ( I actually tested this scenario when developing it, but its still an
> >> undocumented use on purpose )
> >>
> >> GLHF.
> >
> > I went ahead and did the upgrade which worked, but the emerge from
> > perl-cleaner --all did not.  I am using ~amd64 and have done so for
> > years, so I don't think I need to maks off anything.  I seem now to be
> > stuck with dev-python/setuptools, so I am now trying to figure out why
> > I can't emerge that -- it was triggered by the perl-cleaner --all .
> >
>
> How recent is your tree?
>
> I had issues with setuptools doing the first run through the 17.0
> upgrade. I never looked into it too closely, I used --keep-going, but
> setuptools seemed to think I had a useable python-3.4
>
> After the first run through emerge -e world, nuking-python-3.4 and
> re-syncing, setuptols worked normally again.
>
> YMMV of course where you are

My tree maybe 30 days old or thereabouts.  I could not run  the emerge
from perl-cleaner because of setup-tools problems.  I will see what
happens if I run a regular update, but I hate to do that if I am going
to do an -e world.

-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         covici@××××××××××.com