Linux-to-Linux migration

[Hugh E Cruickshank]

Hi All:

We have a client that has been experiencing some hardware problems
which have resulted in a corruption of the OS (RHEL3). They are
planning on replacing the system drive and reinstalling the RHEL.
I know that I will need to backup a lot of information from the
current system prior to it being replaced. I have spent some time
searching for information on Linux-to-Linux migration but have 
not be able to find much (tons on Windows-to-Linux migration).

My question is: Does anyone have any links to any documents on
Linux-to-Linux migration or Linux upgrading that might assist
me in ensure as some a transition for the client as possible?
I am not looking for handholding just some guidelines and/or
checklists of things to do.

TIA

Regards, Hugh

-- 
Hugh E Cruickshank, Forward Software, www.forward-software.com