SQL Server Product Key

Hi,

I have a valid 25-character product key that has been deployed in the windows machine for sql server which is working fine.

Now I am trying to install a sql server in my redhat machine but during the configuration if I add the same product key its showing the following error.

ERROR: The provided PID [25-character-product-key-added-here] is invalid.  The PID must be in the form #####-#####-#####-#####-##### where '#' is a number or letter.

Also I should be able to use the same product key everywhere right !!

Thanks,

Vivek