On Wed, Nov 23, 2011 at 3:28 PM, Leon Fauster wrote: > - your scenario would end up in a 6.2 system. > > - the description "mixed" misdescribes the actual process > > the point is - that this "mixed" combination is a valid one (validated by upstream). > > > if the are any dependencies - the "requires/provides" internals of the package system > will push the necessary packages. Hi Leon, actually I have not understood if you agreed with me or not (a part the vote... ;-) This is what I mean with "mixed environment" and what I tested (considered 5.6 --> 5.7 instead of 6.1 --> 6.2) - install base system from rh 5.6 x86_64 dvd iso [root at rh56 ~]# uname -r 2.6.18-238.el5 [root at rh56 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.6 (Tikanga) - register the server with rhn - update some packages [root at rh56 ~]# yum update yum ... Updated: yum.noarch 0:3.2.22-37.el5 Complete! [root at rh56 ~]# yum update glibc ... Updated: glibc.i686 0:2.5-65 glibc.x86_64 0:2.5-65 Dependency Updated: glibc-common.x86_64 0:2.5-65 glibc-devel.i386 0:2.5-65 glibc-devel.x86_64 0:2.5-65 glibc-headers.x86_64 0:2.5-65 nscd.x86_64 0:2.5-65 Complete! [root at rh56 ~]# yum update kernel ... Installed: kernel.x86_64 0:2.6.18-274.7.1.el5 Complete! [root at rh56 ~]# yum update redhat-release ... Updated: redhat-release.x86_64 0:5Server-5.7.0.3 [root at rh56 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.7 (Tikanga) - reboot [root at rh56 ~]# uname -r 2.6.18-274.7.1.el5 [root at rh56 ~]# rpm -qa|wc -l 442 So, after a pure rh e 5.6 install l I then directly updated 10 packages from rh el 5.7+updates bandwagon... While the other 432 packages remained as stock rh el 5.6 original dvd This is what I call a mixed environment.... Note that if I run [root at rh56 ~]# yum update I'm proposed this: ... Transaction Summary ======================= Install 1 Package(s) Upgrade 140 Package(s) Total download size: 116 M Is this ok [y/N]: Exiting on user Command Complete! Is this supported by upstream? I think so. And the same process would be with CentOS supposing they provided in CR repo the 10 packages above (actually 9, considering redhat-release that doesn't carry on any dependencies btw....) Hope that this explains better my point about mixed-environment, and the final system not being a 5.7 installation... Gianluca