10/09/2015 21:56, david wrote: > Folks > > While trying to add a second desktop to my Centos7 installation (I had > GNOME3, wanted to add KDE as an alternate), the install failed: > <snip> > I use priorities, as follows: > > 1: base > 2: centosplus > 3: updates > 4: extras > 5: cr > 6: contrib > 7: epel > > Can anyone explain this? or let me know how to get around it? > Rebuilding the server from scratch is definitely possible since this is > a test environment only. you need the same priority for updates as base, since packages in updates update packages in... base ;-) change updates prio to 1 and you should be good.