> Marko Lerota wrote:
> > In http://www.freebsd.org/releases/7.0R/announce.html says
> >
> > Updating Existing Systems
> >
> > > An upgrade of any existing system to FreeBSD 7.0-RELEASE constitutes
> > > a major version upgrade, so no matter which method you use to update
> > > an older system you should reinstall any ports you have installed on
> > > the machine. This will avoid binaries becoming linked to inconsistent
> > > sets of libraries when future port upgrades rebuild one port but not
> > > others that link to it. This can be done with:
> >
> > # portupgrade -faP
> >
> > etc...
> >
> > Why!!!
>
> If you never rebuild any ports at all after upgrading to a new major
> version, then your ports should all continue to work as long as they can
> find the old libraries they need. However, once you rebuild a port, it
> will link to new libraries, and may also link to other libraries that
> continue to be linked to the old libraries. You may end up with a binary
> being linked against libc.so.6 and libc.so.7, which will not work.
>
> > Then the servers. Why should I reinstall all my databases and such? I always
> > liked that FreeBSD base (OS) is separated from packages. And no matter what
> > I
> > do with the packages, my OS will always work. I don't want dependency
> > hell like in Linux. Now you are telling me that my database might not work
> > after upgrade to a new version. Is that it?
>
> Ports that depend on other ports are vulnerable to this problem. Ports
> that only require base libraries are not. The more ports a port depends
> on, the more likely you are to run into problems if you don't rebuild all
> ports to begin with.
>
> So, if you don't ever rebuild any of your ports at all, everything should
> still work until you finally do rebuild a port. At that point, if that port
> doesn't depend on other ports and only links to base libraries, you'll
> still be fine. Once you rebuild a port that depends on other ports,
> things may break if you don't force a rebuild of every port that port
> depends on.
Running "portupgrade -nrR <package-list>" repeated until
<package-list> stabilised used to also work for just-in-time
upgrades like this. Unfortunately "portupgrade -nrR" no
longer reports packages that won't be upgraded. There are
no longer any "-" entries in the output.
I need to see what "portupgrade -nrRf" does before reporting
this.
> The paragraph you quoted above attempts to avoid that breakage and the
> mailing list questions that ensue, by forcing a rebuild of all ports to
> begin with.
>
> --
> Skip
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Mark Andrews, ISC
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