VERIFY install and check file sizes?
Indicates whether you want the system to perform some checks on the
software you installed.
YES instructs the system to perform a checksum to confirm that your
software files are the correct length, contain the correct number of
digits and characters, and to verify requisites for all software on
the system.
NO instructs the system NOT to check your installation. The
verification process can add a significant amount of time to the
installation process. If you want a faster installation procedure,
choose NO.