On Mar 4, 2011, at 4:41 PM, Arkadiusz Miskiewicz wrote:
>
> Hi,
>
> I'm still at rpm 4.5 and I'm looking for a way to replace all i686 packages
> with x86_64 ones on a existing system. My rpm is already x86_64 one.
>
OK, here's the simplest way to achieve a mass replacement of i[3456]86 by
their x86_64 equivalents that I can think of. Its not really
what RPM was ever designed to do.
RPM has had support for manifests for a long time.
And rpm-4.5 uses rpmgi which is perfectly happy using manifests,
enven manifests of manifests, and gathering packages into argv lists.
What isn't in rpm-4.5 (but is simple to add) is support for
installs and erases from the same command line. E.g. rpm-5.0 is (or at
least was, I haven't checked) prepared for this sort of syntax:
rpm -ivh -- +/path/to/foo-1.2-3.x86_64.rpm -foo.i686
Using manifests and rpm -qa its pretty simple to generalize the "+" and "-"
prefix into something that achieves what you want to do.
The '+' prefixed packages need to be fed to rpmAddInstallElement().
The '-' prefixed packages need to go to rpmAddEraseElement().
The code that needs changing to handle '+' and '-' prefixing to permit
installs and erases to be handles as above is in lib/rpminstall.c.
The invocation should be "-ivh" rather than the more typical "-Uvh"
to disable "newer" upgrading as well as Obsoletes: handling.
You will need to generate 2 manifests using rpm --query against
whatever happens to be installed. Presumably your need applies
to client machines with different install sets.
On the down side:
1) You will have to backport (and test) the '+' and '-' prefix code from
rpm-5.0.
If you can't change existing rpm-4.5 code, well none of what I'm saying
is going to work and you're in for some struggles with arch scoring
and fiddling with rpmrc files to "prefer" x86_64 over "i686".
2) I'm assuming sufficient regularity between the package name spaces
on i686 and x86_64 that you can easily script the two needed manifests
knowing only, say, this input
rpm -qa | grep '\.i[3456]86'
If you have issues with package renaming, or the package name spaces
on i686 <-> x86_64 are too dissimilar, you're in for some tedious scripting
while also adjusting the package name space differences.
Does the above make sense? If not I'll try a more verbose description, and/or
generate the patch needed on rpm-4.5.
hth
73 de Jeff
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