Wols Lists <antli...@youngman.org.uk> writes: > On 26/02/2022 11:07, Dale wrote: >> Ramces Tampo-og Red wrote: >>> Hello list, >>> >>> I'm a sort-of newbie gentoo user and I just wanted to ask if what I'm >>> thinking is possible or if I'm just being stupid. But either way, I was >>> wondering if it is possible to export a list of all installed software >>> in emerge and use that to recreate on another gentoo install. >>> >>> I have a bunch of PCs that are all similarly specced and I wanted to >>> create a minimal install "template" for all of them. If not, would it be >>> possible to pipe-in to emerge from stdin an output of all of the package >>> names that I wanted it to emerge? >>> >>> I'm really sorry if this might be a stupid question. I'd appreciate any >>> guidance in the matter. >>> >>> Cheers! >>> >> >> There is a file that contains all the packages you have installed. It >> is located here: >> >> /var/lib/portage/world >> >> One could copy that file to another system and do a emerge @world to >> install the same list of packages. Depending on what all you have >> installed, it could confuse emerge and not be doable. In the past, I >> had a copy of the file and I emerged them a few at a time. It's worth >> trying by just coping the file tho. It just might work. > > Someone a while ago gave me a tip along the lines of > > emerge < /var/lib/portage/world > > I was building a new system and they said this was a good way of getting > the new system to have the same packages as the old one. Mind you, I > think I'd now rather just print off @world and be choosy in what I > re-emerge. >
After reading the responses in the thread, this appears to be one way to
do it. Though I think adding it to a set could be a cleaner way? I
haven't tried all of the suggestions yet.
> Oh - and for quite a while I used the -b -k flags a lot, mostly emerging
> on the slower system actually then installing the binary on the fast
> one. Sounds odd, but the faster, newer system had a habit of crashing
> during an emerge ... Both systems now gone to the Computer Centre in the
> Sky :-)
>
That is certainly odd. You would assume that the faster system would be
the one compiling stuff for the slower one. I've been thinking of buying
a couple of old desktops for the sole purpose of being distcc slaves but
I don't know how much that would improve the compile times.
> Cheers,
> Wol
>
Cheers!
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