Installer redirects installs to existing dbs to the updater

[GoogleCodeExporter]

What is the enhancement you are adding?
If the db already exists then the installer will give the option of either 
erasing the installation or updating it.

What parts of EDK will your change improve?
1. The sanity of developers who see so many skip through the warning messages, 
then ask why their board isn't working.

What parts of EDK will your change affect?
1. Installer

Original issue reported on code.google.com by kovellia on 10 Jan 2011 at 11:51

[GoogleCodeExporter]

Was just about to suggest this myself :p

Original comment by mastergamer0168@gmail.com on 10 Jan 2011 at 11:52

[GoogleCodeExporter]

Revision 1119 implements this. Users still have the option of installing over 
an existing installation but now they must explicitly choose to, rather than 
ignoring the warning messages. Re-install also erases the existing installation 
first. All their kills will be gone but the board will work.

The default option is to upgrade, which redirects to the standard upgrade.

It may be better to make re-installation impossible, requiring the admin to 
erase the db themselves before proceeding.

Original comment by kovellia on 20 Jan 2011 at 3:11

• Changed state: Fixed