Re: [gentoo-user] Migrating existing Gentoo to binpkg

[Jacques Montier <jmontier@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 2439 bytes --]

Le ven. 15 nov. 2024 à 13:42, <byte.size226@simplelogin.com> a écrit :

> Hello,
>
> I'm sure this has been asked before but, clearly, my archive search
> skills are sub-par. I'm hoping it would be a quick "yes/no" kind of answer.
>
> Long story short, I decided to try out the Gentoo setup with binary
> package host. I've been making my way through the relevant news item [1]
> and guides [2,3].
>
> I already have "/etc/portage/binrepos.conf" and "/etc/portage/gnupg" set
> up correctly - no issues there. In make.conf I also added:
>
>      FEATURES="getbinpkg binpkg-request-signature"
>
> My only question that remains is whether I should change the existing
> value for CFLAGS (I presume so). Currently, I have:
>
>      COMMON_FLAGS="-march=znver4 -O2 -pipe"
>
> (yes CFLAGS etc are set to use $COMMON_FLAGS).
>
> Since I'm planning to use binary packages from x86-64-v3, I presume this
> should be changed to:
>
>      COMMON_FLAGS="-march=x86-64-v3 -O2 -pipe"
>
> or, perhaps:
>
>      COMMON_FLAGS="-march=x86-64-v3 -mtune=znver4 -O2 -pipe" ?
>
> I also have a hefty $CPU_FLA
> GS_X86 (also added to $USE) from
> "cpuid2cpuflags" but am not worried about this as packages that don't
> fit will simply be built from source as usual.
>
> Anyway, in both cases running my usual:
>
>      emerge -aqvND --update --keep-going --with-bdeps=y @world
>
> doesn't yield any changes to the system. I presume because, as of now,
> everything is up to date.
>
> In contrast, adding "--rebuilt-binaries" shows a lot of binary packages
> being pulled in and "--emptytree", as expected, shows a full rebuild
> with a lot of binary packages being pulled in.
>
> So, to the actual questions:
>
> 1) What would be the preferred CFLAGS configuration or, since
> "-march=znver4" is a newer subset of x86-64-v3, can I simply keep the
> existing one?
>
> 2) To reinstall the current source based packages with their binary
> equivalent, "--rebuilt-binaries" sufficient or should I just go for
> "--emptytree @world"?
>
> Thanks,
> Victor
>
> [1] https://www.gentoo.org/news/2023/12/29/Gentoo-binary.html
> [2] h
> ttps://wiki.gentoo.org/wiki/Gentoo_Binary_Host_Quickstart
> [3] https://wiki.gentoo.org/wiki/Binary_package_guide



Hello,

What if you try this :
emerge -auvDN --getbinpkgonly --with-bdeps=y --binpkg-respect-use=y
--keep-going world

Cheers,

--
Jacques

[-- Attachment #2: Type: text/html, Size: 3814 bytes --]