A/UX: Expanding the Macintosh OS Partition (5/97)



If you decide to reduce the swap partition of A/UX and use that freed disk
space for a Macintosh OS HFS file system, there are a number of things to
consider:

- You can reduce the size of the swap area with HD Setup (2.0).  Select the
 swap area, delete it, and create a new one of a smaller size.  It contains
 no useful data when A/UX is not running so you can safely ignore the
 warning.  As soon as you boot up A/UX, you also have to adjust the size
 stored in the kernel, by entering in single user mode:

     kconfig -n /unix
     SWAPCNT=<New-swap-space-size-in-512-byte-units>
     <Control-d>

 Then reboot to make it effective.  To permanently change this value--even
 when reconfiguring the kernel, you also should change the "/newunix" file.

- There is no need to use either "dp" or "adb" for this if you use "Apple
 HD SC Setup v2.0b12" or later, which includes partitioning.

- There can be only one HFS partition per disk under Macintosh OS.

- Once you have freed some of the disk space, you can increase the size of

 the Macintosh OS partition as follows:  back it up on floppies, delete it,
 move partitions on the disk to make a large contiguous gap, create a new
 HFS partition, and restore the floppies on the newly created partition.
 Be prepared--moving partitions takes a lot of time since HD Setup copies
 all its data.


Published Date: Feb 18, 2012