A/UX: How to Create a Bootable Partition with HD SC Setup

The "50% A/UX, 50% Macintosh OS" option creates a disk with half the space
in a Macintosh volume and the other half set up for a random A/UX file
system. These partitions are not suitable for a bootable A/UX system.

To reserve 80MB for the Macintosh operating system with the remaining space
for A/UX, follow these steps:

1) Bring up HD SC Setup, and select the standard A/UX Partition option.

2) Click the Custom button to do custom partitions.

3) Select the Macintosh Partition and delete it.

4) Click and drag the existing A/UX partitions closer to one another to
concentrate all the gray space (representing unallocated space on the
disk) at the bottom.

5) Create a new Macintosh partition; click in the gray space, select
Macintosh Volume as the partition type, and make the size equal to the
maximum available.

6) Click "Done" and quit HD SC Setup.