On 08/01/2011 09:31 AM, Connie Sieh wrote:
> 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

To be explicit, am I correct that these system directories are:

/boot

/etc

/usr/bin , /usr/sbin , /usr/lib

/lib

/var

plus the MBR to point to the correct boot loader?

Are there others that I have forgotten?

Yasha Karant