Re: [gentoo-user] Re: Emerge question: What's with the @?

["Nick Cunningham" <nick@monkeydust.net>]

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2009/1/13 Paul Hartman
<paul.hartman+gentoo@gmail.com<paul.hartman%2Bgentoo@gmail.com>
>

> On Tue, Jan 13, 2009 at 1:37 PM, Chris Lieb <chris.lieb@gmail.com> wrote:
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> > Nick Cunningham wrote:
> >>
> >>
> >> 2009/1/13 Chris Lieb <chris.lieb@gmail.com <mailto:chris.lieb@gmail.com
> >>
> >>
> >>     I've noticed lately on the ML that people have been talking about
> using
> >>     package sets, such as @world and @installed.  I figured it was a
> part of
> >>     portage 2.1.6* since using @world with 2.1.4* would result in an
> error
> >>     message about an invalid package atom.  However, after upgrading to
> >>     portage 2.1.6.4, I still get the same error when doing something
> like
> >>     'emerge -up @world'.
> >>
> >>     What are these package sets?  What is the difference between 'emerge
> -up
> >>     world' and 'emerge -up @world'?  Why don't these package sets ever
> work
> >>     for me?
> >>
> >>     Thanks,
> >>     Chris
> >>
> >>
> >> A set is basically just group of packages, you can either define you own
> >> using /etc/portage/ or using gentoo provided ones like @world and
> >> @system (which will replace the current emerge system/world usage
> >> eventually), aswell as useful sets such as @live-rebuild (any package
> >> that uses a cvs/svn/git eclass, so basically any -9999 ebuild) and
> >> @module-rebuild which is handy for rebuilding kernel modules. Also id
> >> imagine meta-packages will eventually move over to sets as it makes
> >> rebuilding everything or removing it much easier, currently theres only
> >> kde4 that makes large usage of sets but id imagine once portage 2.20
> >> goes stable we'l see great set adoption.
> >> An easy way to see what sets are available is to use the emerge
> >> --list-sets command.
> >>
> >> -Nick
> >
> > Thanks for the info.  The @module-rebuild should come in handy.  Any
> > idea on when we'll see 2.2* hit stable?
> >
> > Thanks again,
> > Chris
>
> "When it's ready" I guess is the standard answer there. :) it's masked
> in ~arch as well, but you can simply unmask it if you want to use it.
> That's what I did. I have these sets available in my system currently:
>
>    downgrade
>    installed
>    live-rebuild
>    module-rebuild
>    preserved-rebuild
>    security
>    system
>    unavailable
>    world
>
> @live-rebuild is especially handy to rebuild live cvs/svn/etc ebuilds
> (that -9999 stuff)
>
> Paul
>
>
Same, here, ive been a happy user of portage 2.2 for a long time now and im
very happy with it and loving the ability to use sets. As with all programs
in ~ARCH (and especially as its also masked and under active development)
there may be occassional bug or other random error, but if your comfortable
working around them and/or reporting them then portage 2.2 is definately
worth a try :)

- Nick

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