Re: [gentoo-user] system update

["Mariusz Pękala" <skoot@qi.pl>]

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On 2005-07-15 00:46:45 +0100 (Fri, Jul), Edward Catmur wrote:
> On Thu, 2005-07-14 at 17:58 -0500, Qv6 wrote:
> > I am currently running kde-3.3, and do not want to have both 3.3 and 3.4 
> > on the box. How can I update kde or any other app and not have the old 
> > version still installed.
> 
> Update kde as usual, then 
> 
> # emerge -av --depclean
> 
> Make sure that portage doesn't offer to remove packages you want to keep
> installed! Also a good idea to run revdep-rebuild afterwards.

As this version of kde is slotted I believe that after your compilation
finishes, and you find the new KDE in working state, you should:

emerge prune kde
emerge -va prune arts

and then run emerge -av --depclean

After depclean there will be a few leftovers from kde if I recall well.
You may find them looking at /usr/kde/3.3/ and finding packages that own
files left there.

qpkg -f /usr/kde/3.3/some-file
emerge -va prune the-package-found-if-it-is-part-of-kde

Some files will not belong to any package, you may delete them, some
packages will have to be rebuild to use the new KDE version and leave
the old -  dev-db/knoda in my case...

Surely you may cook a nice script that will find and clear the KDE
leftovers in more hackish way, but it was very hot the day I was doing
this and my brain cooling system was not working properly... :-)

Remember to run revdep-rebuild -p after you remove some packages. It may
help you to find ones that need to be unmerged, and it is anyway a good
habit to run it.

HTH.

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