[BlueOnyx:17868] Re-partition

[Tom]

I did a server image backup of my old RAID drives. I installed new drives, 
hardware raided them and did an image restore. Everything is up and 
running, no errors. However, as I already knew, even though the new drive 
size is 1TB, all the partitions are exactly as the original, totaling 
250GB, with the rest unallocated. What I would like to do is increase the 
partition sizes, so they take up 500GB and then create a separate partition 
with the balance. I've read a few tutorials, but I get a little confused, 
as they never refer to SL/BO, just Linux.
Thanks in advance.
Tom