Description of problem:
install the same rpm multiple times. There is one legititimate use
case for this, though, namely installing it multiple times using
different --prefix values. In development a case can be made to
support this, since different developers or testers would want to
test a realistic installation scneario in parallel.
To support this one use case, how about extending the
"name, epoch, version, release, architecture"
with one more component, "prefix". This way, one could address a
specific package instance via --prefix and selectively erase only
the rpm installed at the specified prefix.
Another consideration would be to make it illegal to have the
exact same rpm installed multiple times except if --prefix differs.
Version-Release number of selected component (if applicable):
4.1 and later
Steps to Reproduce:
1. rpm -i <some-rpm>
2. rpm -i --prefix <someplace> <same-rpm>
3. rpm -e --prefix <sameplace> <the-rpm>
erases the second package
Using --prefix to qualify upgrade/erasure ain't the right thing to do.
So what is the right thing to do?? How do you selectively erase a
specific package installed with a specific prefix, if that same
package is installed multiple times?