yum reinstall using non-identical packages with same EVR

[Michael Schwendt]

On Sun, 27 Feb 2011 11:50:09 +0000 (UTC), Andre wrote:

> Andre Robatino <robatino <at> fedoraproject.org> writes:
> 
> > Well, I know it looks odd, but I'm not trying to be perverse, on the
> > contrary. I needed to generate F14 deltarpm binary rpms that use the new
> > compression, but wanted to use no more than necessary from F15. It's
> > necessary to use F15's xz packages, obviously, but it turns out that the
> > F14 deltarpm src package works as long as rpmbuild is run while the F15
> > xz packages are installed.
> 
> Actually, at the moment the EVR of the F14, F15, and rawhide deltarpm packages
> are the same except for the disttag (deltarpm-3.6-0.6.20110223git.fc14,
> deltarpm-3.6-0.6.20110223git.fc15, deltarpm-3.6-0.6.20110223git.fc16) so even if
> I used one of the others, the resulting F14 rpmbuild rpms would still have the
> same EVR as the regular F14 packages.

The dist tag is part of the R in EVR, however, so whenever you rpmbuild
something in order to _rebuild_ it, you need to bump the R to turn the build
into a valid update. For dist-specific rebuilds, you would append your own
least-significant release value at the right side of the dist tag.