Modifications after configuration

[Ken Teague <kteague@pobox.com>]

Shouldn't an OS installer execute destructive modifications *after* the
user has performed configuration options and confirms them just before
the OS installation?  It seems rather evil for an installer to modify
the hard disks' partition before all configuration options are chosen.
It seems like it would be better to store configuration options in
memory and perform them before the OS is installed and after the user
concurs with the configuration options he chose.

- Ken