On 05/05/2011 01:49 PM, Jean-Marc Liger wrote: >>>> by assuming that the _x and _y imply that the code is built on, you >>>> already dont know what you are talking about >>> Ok, I assume that say that _x and _y having been built on different >>> instances would have been a more correct assertion, but after saying > I define 'instance' like the build environment CentOS projet take care in that case, no - the distag in this case will have no connection or relevance to the build roots being used to build any given package. In many cases it might 'ok' to assume this ( eg. package-.el5_1 will clear have a different root to package-.el5_5 ) but beyond that. Look at it from a different point of view: there are el5_6 packages that were built on el5.5 buildroots, while there are el5_5 updates that were built with packages that had el5_6 in their released names. - KB