Operating System Upgrades
Unlike patches, operating system upgrades change the entire operating system and usually require an involved installation process. Even though the actual OS upgrade installation process can go quite smoothly, many problems can develop afterward. The following sections document some “best practices” for upgrading an operating system and investigate a few of the more common problems that can occur during the process.
Deciding Whether to Upgrade in Place or Install from Scratch
The actual procedures for upgrading an operating system are very specific to each individual operating system. However, you will usually use one of the following general methods for upgrading:
Upgrade the operating system in place.
Install the new ...