How does one specify a particular version of a software package to yum to install? Is this even possible? What happens to superceded pacjkages in repos? Are they simple removed/discarded?
yum install package-X.Y.Z-A.el5 ???
The reason I ask is if a yum update goes awry for some reason then how does one revert to the previous (working) version? I seem to recall that up2date had a feature whereby one could locally archive superseded packages and rollback to a previous version was required.