Would someone please remind me how to do the following.

The current SL 7.2 DVD does not have an upgrade in place choice (only 
from a SL 7.x system; EL does not support upgrade between different 
major releases).  I recall that someone explained that one can treat the 
DVD as an upgrade repository, point yum or some other utility (possibly 
a GUI) to the (mounted?) DVD, and then an ungrade in place without 
considering the process a new install (e.g., requesting time zone, etc.) 
will automagically happen.

Interestingly, the offer of a "free" MS Win 10 upgrade from MS Win 7 
(Pro to Pro as it turns out) worked flawlessly -- all of the proprietary 
installed applications under MS Win 7 are now under MS Win 7 with no 
games involved (no re-licensing, etc.).  This was done under VMWare 
Player under a SL 7.1 host (not VirtualBox only because the recent 
VirtualBox releases do not properly attach a proprietary USB-connected 
device with a proprietary MS Win application that I need, but that does 
work under VMWare Player -- no funds for a VMWare Workstation license).  
Thus, it appears that unlike SL, MS Win under some circumstances will 
permit a major release upgrade (I did not have to go through MS Win 8 as 
MS Win 8 was unsatisfactory for my needs, but MS Win 10 allows, as does 
MATE for Linux, the use of the older GUI method).  The only small glitch 
was a document VMWare Player issue; to get to the shared folders with 
the Linux host, after the full install of MS Win 10, the VMWare tools 
(drivers into MS Win) need to be removed and then fully reinstalled.

Yasha Karant