Installer messes up disk slice size when activating the slice

[Andrew Hacking <ahacking@xxxxxxxxxxxxxxx>]

Hi all,

Well done on the release.

When using the 1.0 RELEASE installer on a freshly fdisk'd drive with
more than one slice the installer changes the slice size when attempting
to activate the slice. This resulted in overwriting slices that follow.
I was able to reproduce the problem repeatedly, and I am wondering if
anyone else has experienced the same problem ?

Installing manually works fine.

I had three slices on the drive, divided roughly ad1s1: 25% ad1s2: 25%
and ad1s3: 50%. When using the installer on either the first or the
second slice, the installer changes the slice size to the size of the
last slice. In my case the slice size is changed to 50% of the disk. 
Like most configurations, the final parition in the slice gets the
remaining space, which ends up being a whole lot more than the original
slice size. The resulting newfs ends up clobbering slices that follow.

I was able to observe the slice size change  when the installer sets the
partition to active.  Unfortunately I don't have the installer log, but
if really needed I could reproduce it.

Cheers...Andrew