Victor Ivanov wrote: > On 05/12/2020 10:13, Dale wrote: >> that as, I learned the hard way. Once you get Gentoo installed and all >> the packages you want installed completed, it is wise to add the >> --oneshot option to the defaults in make.conf. That helps keep the >> world file clean since you won't have packages in the world file that >> shouldn't be there. If later you want to add a package to the world >> file, you have to specify that you want it added. If it is already >> installed, you can do a emerge -n --select y <package name> and it adds >> it to the world file. It will then be maintained automatically. > > Excellent pro-tip for keeping your world file clean! While I > personally use the reverse of this (i.e. I manually add -1 to things I > do not want to end up in my world file) this is a lot more of a sane > approach for the every day person or those new to Gentoo. > > On a side note, '--select y' is not necessary as it is implied by '-n'. > > One thing I would add as well is that regular 'world' cleaning is good > practice to have regardless of the above. Every couple of months (on > average, I don't really keep track) I tend to look at my world file > and take note of entries that may have found their way there either > automatically (lack of -1) or something I used to use and no longer > need. These can be cleaned up with --deselect, followed by --depclean > e.g.: > > # emerge --deselect ATOM [ATOM...] > # emerge -a --depclean > > Last time round I only deselected 2-3 packages but that removed about > 30 or so unnecessary dependencies, so pretty chuffed. Disk space is > cheap these days and there's little reason to be so pedantic, but I > tend to get quite a satisfying feeling when my system becomes 'leaner' > so I do it anyway. Having fewer packages installed also helps speed up > portage's dependency resolution stage during updates which is already > an incredibly slow process (depending on CPU's single thread > performance ofc). > > - Victor >
I'll try leaving off the --select part next time. At one point, it would work only when both were there. Maybe something changed??? Maybe I had another setting that had to be overridden??? Who knows. I've looked through my world file a few times but never found anything that didn't belong there. With --oneshot being the default, I don't have to worry about forgetting to add -1 or anything. It's there already. There is on occasion a package I no longer use that I remove. For some, especially those new to Gentoo, adding that --oneshot is a good move. I've often wondered why it isn't the default. Hope the advice helps someone. Wish I had it way back then. ;-) Dale :-) :-)
