Avoiding Compatibility Problems

• Inst tells you about incompatible subsystems when you try to install them. To learn about these incompatibilities earlier, check the release notes for the products that you plan to install.

• All subsystems of a product should have the same release number. When in doubt, give the showprods command with the -n argument:

  % showprods -n names

  The column that normally contains the installation date contains a number instead. Make sure that all subsystems in each product have the same number. If there are subsystems from different releases in the same product, compatibility problems might result.

• When you receive a software update, install the new versions of all of the products you receive, not just some of them.

• If any subsystems that you want to install require a miniroot installation, perform all installations during a single miniroot installation session. Performing a single installation prevents incompatibilities that can occur when you switch from one installation session to another.