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AmigaOne - Dual Booting from the Same Hard Drive

Installing AmigaOS
The purpose of this section is to review the installation of AmigaOS 4.0 required prior to setting up a dual boot system for AmigaOS and Linux from the same hard disk.

Before you can setup a dual-booting environment, you must first install AmigaOS 4.0 using the normal installation instructions provided with the CD. You can prepare for the installation of Linux during the installation process or you can go back later and add the Debian Linux partitions. Just make sure that you have left sufficient disk space in your calculations to allow for install of Debian Linux and its associated files. We recommend that you also update to Debian 'Sarge' and that requires even more space than Woody. You may need to reduce the sizes of the AmigaOS partitions to make space.

During the installation process you will need to setup the Amiga's Rigid Disk Block (RDB) and the AmigaOne booter file (SLB). These instructions and those on the AmigaOS 4.0 Install CD assume you are starting with an empty drive and that the first two partitions will be DH0 and DH1 for use by the AmigaOS, while some users will also create additional Amiga partitions, such as DH2, DH3, etc.

Let's assume that you are going to setup the basic configuration (i.e. DH0 and DH1 only), then the Debian Linux partitions will be the 3rd and 4th partitions on the disk, which means they would be known to Linux as 'hda3' and 'hda4'. However, you might prefer them to be the first two or more partitions on the disk ('hda1' and 'hda2'), in which case you must define them before you define DH0 and DH1. The order of partitions on the disk does not impact on either operating system, just on the parameters used to start Debian Linux.

Furthermore, if you plan to setup a partition which can be shared by both the AmigaOS 4.0 and Debian Linux, then you might like to set that up as the last AmigaOS partition. Details for this and the Linux partitions are detailed in the next section, but if you require more information on installing AmigaOS 4.0 this is covered here.

Disclaimer: Amiga Auckland have prepared the above information for the use of its members based on our experiences and as such is subject to revision at any time. Amiga Auckland cannot guarantee any of the information and cannot be held accountable for any issues that may result from using it.

Copyright 2005 Amiga Auckland Inc. All rights reserved.
Revised: December 05, 2005.