Growing after replacing with larger discs

[John Robinson <john.robinson@anonymous.org.uk>]

Before I have to go to a customer's premises and try it, I wanted to ask 
if anyone had already done anything like this: I have a CentOS 5 system 
with 0.90 metadata and type fd partitions with RAID-5 over 3 discs. I 
want to grow it by replacing the drives. If I dd the small partitions 
onto larger ones on the new discs, then reboot, will the system 
recognise the RAID-5 - which now has its metadata somewhere in the 
middle of the paritions not at the end - so that I can then --grow?

Cheers,

John.