[linux-lvm] Upgrade procedure

[hail narcissus]

I am running .9.1-Beta2 right now and though I am not currently in need to 
upgrade I would like to know the procedure for future reference.

My questions are:  Do I need to re-patch and compile the kernel for 
upgrading?  If so then do I need to start with a clean src or can I re-patch 
my src?

In other words, my kernel already has a couple of other hacks patched into 
it.  If possible I would like to just run the LVM .9.1-Beta3 patch over my 
kernel which was patched for Beta2 on it instead of having to dig up all the 
other patches I have applied in the past.

Thanks.
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