GS/OS 5.04 Upgrade: Correcting Drive Recognition Problem

I upgraded my Apple IIGS to GS/OS 5.04 on an AppleShare network and it no longer recognizes 5.25 drives.
When this happens, the 5.25 driver is usually missing from the drivers folder. Run the GS/OS 5.04 Installer again and install the 5.25 drivers.
Published Date: Feb 18, 2012