[Bug 225104] ports-mgmt/pkg: "pkg update" fails to update package database saying that kernel too old for some package

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225104

Bryan Drewery <bdrewery at FreeBSD.org> changed:

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                 CC|                            |bdrewery at FreeBSD.org

--- Comment #24 from Bryan Drewery <bdrewery at FreeBSD.org> ---
(In reply to Roger Pau Monné from comment #13)
> I certainly preferred previous pkg behaviour, which would let you install
> anything (and it might fail to load because of missing/wrong shared
> libraries). Is there any option to restore previous behaviour? If not, can
> we please get one?
> 
> Thanks, Roger.

The previous behavior was called "russian roulette". Every time you run
"pkg upgrade" you risk nuking the usability of all packages depending on
what forward-incompatible change they were built against.  Some recent
examples are linking against libdl and ino64.

The workaround people are using should not be used - the proper thing with
pkg on CURRENT has *always been* that you should upgrade the system before
upgrading packages.  It is a different process than building ports directly
on your system.  Building locally ensures ABI compatibility every time, but
with pkg you are getting packages from a future CURRENT system.  FreeBSD
does not have forward-compatibility in general, only backwards.

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