On Tue, 11 Dec 2012 07:36:10 -0600 Bruce Hill <[email protected]> wrote:
> On Sun, Dec 09, 2012 at 04:48:24PM +0000, Neil Bothwick wrote: > > > > > workstation ~ # emerge -a @preserved-rebuild > > > emerge: 'preserved-rebuild' is an empty set > > > emerge: no targets left after set expansion > > > > So you have nothing that needs rebuilding. Portage will warn you > > when the set it non-empty, telling you to run emerge > > @preserved-rebuild. There is no need to run it at any other time. > > After using Gentoo for close to two years, the only time/place I've > ever even seen @preserved-rebuild is in this thread. Yet you say, > "Portage will warn you when the set is [it] non-empty, telling you to > run emerge @preserved-rebuild." > > How will portage do this? An alias 'ud' > > alias ud='eix-sync && emerge -aDjNuv @world && dispatch-conf && > emerge -a --depclean && revdep-rebuild -i && clear && exit' > > is run every morning with my first cup of coffee. If something were > changed or left off that alias do you suppose this mysterious > @preserved-rebuild would be run? No, you would likely never see it. Your alias runs revdep-rebuild, which would inelegantly fix the very problem that @preserved-rebuild elegantly fixes. Of course, all this assumes that your version of portage supports @preserved-rebuild To use it, you simply notice the portage message right at the end of an emerge and run "emerge @preserved-rebuild" - it's just a regular emerge using a particular built-in set that has a defined purpose -- Alan McKinnon [email protected]
