I considered upgrading my workstation from CentOS 5.6 to SL 6.0, and 
discovered that the only practical method was a partial fresh install.

As I keep many important directory trees on different partitions (for 
reasons I can discuss under separate cover), I basically did a complete 
copy of the system trees from which I would need to restore files. 
/home is on a different partition, and thus the install did NOT clobber 
it because I instructed the install process not to do so.

Note that I did NOT repartition the hard drives, nor did I change to any 
other filesystems than those already on the partitions being clobbered 
by the (partial) fresh install.  There was a comment as I recall from 
Connie Sieh as to which directory trees had to be a fresh install, and 
those I did.

The result booted fine, and by restoring what I needed from the saved, 
unclobbered copies, I had everything I needed.  The only glitch I had 
was the issue of polymorphism:  I needed X86-64 as a base system, but I 
also needed to run a number of IA-32 applications. My Centos 5.6 was 
IA-32. I now seem to have solved the polymorphic issues for my the 
instance of my particular workstation configuration.

Yasha Karant

On 07/29/2011 03:25 PM, Chris Tooley wrote:
> Hello all,
>
> Do you still need to upgrade with media to go from SL5 to SL6, or can I
> do it from a CLI?
>
> thanks,
> -Chris