Preparing To Upgrade a 9.07 System

9.07 systems pose a problem because they include graphics and other capabilities that are not supported on 10.0 or 10.01. This means that you must upgrade all the way to 10.10 from 9.07. But, to allow the file-system and other 9.x-10.x conversions to occur, 9.07 systems must still go through 10.01 on their way to 10.10.

What this means is that you will upgrade your 9.07 system, like any other 9.x system, initially to 10.01, but you don't have the option, as you do on other systems, of staying on 10.01: immediately after the upgrade you must load any applications you are upgrading from 9.x, and then update the system to 10.10. You will see warning messages about this as soon as you log in after the 10.01 upgrade completes.

In addition, you must give the upgrade software explicit permission to go ahead with the upgrade. You do this by running snoop and answering "yes" to the question:

Do you want to upgrade from 9.07 to 10.10?

See “Running snoop ”, later in this chapter.

	NOTE: If you have many, similarly configured 9.07 systems, you do not have to run snoop interactively and answer this question on each one. You can bypass the question in snoop by exporting the environment variable ALLOW_907_UPGRADE=yes This allows both snoop and upgrade to run unattended, and commits you, once the upgrade is in progress, to upgrading the system all the way to 10.10.