dual mounted hdds

[david smethurst]

hi all
i have mounted a second hdd which i installed fc3
on my old drive i had fc2
it wont mount the two drives obviously as both drives have the
same /boot, /, 
how can i change the name of the second drive partitions so that they
will not conflict with the first
i have sda/1/2, sdb/1/2
when i change the data across to sda then i will ghost it back to sdb as
i always get a geom_ error on that drive when i try to install onto it
please be obvious on your instructions as im a little in the dark, so to
speak
thanks
david