On Sat, 30 Jul 2011, Yasha Karant wrote:

> 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.

All system directories should be part of the hard drive  "format". 
Leaving some system directories to get "clobbered" will lead to mixed 
results.  Format all system directories during the new SLF  6.x install.


  >
> 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
>

-Connie Sieh