Migrating from AS3 to AS4 - experiences w/ upgrade vs. reinstall?

[Nitin]

Tom Hansen wrote:

>
> We have RHEL AS3 Update 7 and are considering upgrading to the current 
> RHEL AS4 to gain the additional hardware support of the 2.6 kernel.
>
> We would like to do the upgrade rather than reinstalling everything 
> from scratch.  Is this just an empty hope, or does this stand a 
> reasonable chance of success?
>
> Experiences, anyone?
>
> Thanks.
>
>
 An upgrade option is available to allow an upgrade without requiring a 
full reinstall. It can be used by inserting boot disk of new version and 
then by typing at boot prompt:

linux upgrade
or
linux upgradeany

This will walk you through the upgrade procedure. I never gone through 
this but OS gives this facility.

--Nitin