Amiga A4000 - Notes on Hard Drive Installation

Rear Bay Installation
9. Reassemble the Amiga, reconnect peripherals and power,
perform necessary setup (see next section), and then test the
new device.
Notes on Hard Drive Installation
6-7
Most new hard drives require additional setup once you have
installed them before they are usable. Follow the drive
manufacturer's instructions on drive setup carefully. Refer to the
Amiga Hard Drive User's Guide for information on partitioning,
formatting,
and using hard drives and Commodore hard drive
software
on the Amiga.