A/UX Version 2.0
Before attempting this procedure, you should verify that your hardware is compatible with A/UX 2.0 - A/UX bypasses the Macintosh Toolbox, and communicates directly with the hardware, so if your Mac is not on the compatibility list, you're out of luck. This also rules out any of the current Macintosh emulators - Unless your emulator accurately replicates the low-level functions of the PMMU, FPU, and SWIM chips, it will not work.
A/UX 2.0 was distributed in three formats - floppies, tape, and CD. I will assume you have the CD-ROM version, and the complete set of installation floppies.
Step #1
The A/UX 2.0 installation floppy images are in Disk Copy 6.3.3 format, and must be written to 800KB diskettes on a Macintosh. There are fundamental differences between PC and Mac floppy drives when it comes to double-density floppies, so you will need a functional Mac with a floppy drive. If you don't have any 800KB floppy disks, you can convert 1.4MB disks by covering the HD indicator hole with masking tape. Disks formatted in this manner may be unreliable, but we only need them to work for an hour or so.
Step #2
The A/UX 2.0 CD-ROM image can be burned directly to disk using cdrecord under Linux. It's a plain iso image, and you can burn it using any modern burning software.
Step #3
Now that we have the installation media, let's get started! The first thing you need to do is partition the hard drive. You have several options here... Both the "system tools" and "utilities 1" disks are bootable, but only the latter contains the Apple HD SC partitioning utility. Boot from "utilities 1" to partition the hard drive. If you're using an older drive, you may want to initialize it to verify functionality... Then remove all partitions, and create a layout similar to the following:
Step #4
Now we need to install Mac OS 6.0.7 - The classic Macintosh cannot boot directly into Unix. It boots to Mac OS 6.0.7 first, then uses an A/UX Startup utility to kickstart into Unix. Boot from the "System Tools" disk to begin installing Mac OS:
Step #5
Mac OS 6.0.7 did not include CD-ROM support out of the box, so you will need to copy the CD-ROM extension from another system... After installing Mac OS 6.0.7, and rebooting to ensure functionality, copy the "CD-ROM Hack" extension from this disk into the System Folder of your internal hard drive. When you reboot, you should have CD-ROM support:
Step #6
Copy the contents of "Startup" and "Startup Utilities" to the Mac partition - You will use these later on to boot into A/UX:
Step #7
Now the real installation begins... Insert the "Floppy Launch" disk, and double-click the "A/UX Install" icon:
Step #8
If all goes well, the A/UX Installation routine will ask for a "floppy with an A/UX filesystem." Insert the "Root Floppy" to continue:
Step #9
The installer will ask several questions regarding your regarding your hard drive, and the installation media... It will also ask you the SCSI ID of the hard drive and the CDROM:
After about a page of questions, you will be prompted to reboot...
Step #10
Once you boot back to MacOS, double-click the "Read_Disk" utility and insert the "Kernel Archive" floppy. The installation procedure refers to this as the "Special Kernel."
Step #11Close the "Read_Disk" program, and double-click the "A/UX Startup" utility. This will launch stage #2 of the installation. Stage #2 loads the remaining A/UX files from the installation CD onto the hard drive... Completing the installation.
Step #12
After booting into A/UX, you can build a custom kernel using the 'newconfig -v' command (originally autoconfig in A/UX 1.0):
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