On Mon, Jan 2, 2012 at 9:39 AM, Michael Orlitzky <mich...@orlitzky.com> wrote: > On 01/02/12 12:06, Michael Mol wrote: >> >> That's the purpose of the "emerge -p" step. Presumably, you would see >> that there's a package in the list that you're not comfortable with >> removing, you'd decide you didn't want it removed, and you'd add it >> back to your world set. > > Yeah, I'm not sure I can remove any of them. The only way I see to > determine what's necessary at this point is to remove it and see if > stuff breaks. >
Again, 'equery depends' will tell you if any package locatable through the @world hierarchy needs the package. No need to uninstall anything to do that level of investigation. revdep-rebuild -I is also useful, although more historically than now. > >> If you're not comfortable removing *any* package that's in your world >> set, then, no, there's no way to tell the difference. From this point >> forward, your best bet is to modify EMERGE_DEFAULT_OPTS to reflect the >> safest practice for your environment. And start keeping a list of >> packages installed to meet customers' requests. Portage apparently >> supports your desired workflow, but it needs to be set up for it. >> >> As to recovering from your current scenario...there might be some way >> to watch your apache processes to identify which files get used over a >> three-month span, from that list derive a list of which packages were >> used, and from *that* list, derive a list of which packages weren't >> used. (Or make an ebuild explicitly identifying the utilized >> dependencies, and let depclean handle the rest) > > That's probably more work than copying everything to another box, > emptying the world file, and adding things back until stuff works. > > Either way the current situation is "you're kinda screwed" which is why > I proposed avoiding it in the future (for others, too) by fixing --update. > Really, the proposal to 'fix --update' doesn't address really knowing what your system is running and why. Get to the root of that and the --update thing becomes the non-issue that many of us think it is. - Mark
