On Tue, Jul 23, 2013 at 8:56 PM, Jeffrey Anderson <[email protected]> wrote: > > On Tue, Jul 23, 2013 at 5:45 PM, Nico Kadel-Garcia <[email protected]> wrote: >> >> the problem here is the switch from one OS, a CERN release, to an >> actual Scientific Linux release. That..... can be an adventure. I've >> done it for CentOS=>Scientific Linux, and for RHEL=>CentOS and >> CentOS=>RHEL. It's nasty, and I don't recommend it unless you're >> getting paid hourly. > > > Actually that is not quite the problem I was trying to upgrade from the > CERN SL5 to the CERN SL6, and that apparently is not supported. But neither > is a vanilla SL5 to vanilla SL6. > > The message I get from the official voices in this thread is that there is > no supported method of upgrading major versions, only minor point versions. > It's no big deal. I just did a fresh install, then some cfengine magic and > am back up and running in a couple hours. I was just surprised because > major version upgrades have been available for every version of SL and TUV > for the past 15+ years, and when the install media did not give me that > option here I wanted to make sure I wasn't overlooking something. > > Jeff
I'm glad for you, and startled myself. Our favorite upstream vendor certainly supported doing updates from major OS versions to major OS versoins: you just couldn''t gracefully do it *live", because changing things like major versions of glibc and rpm while you're in the midst of using them to do the update is...... intriguingly problematic. (Tried it once: don't recommend it!)
