It appears that by default an extended partition is created encompassing what remains of the drive and everything gets shoved into that when using what I assume to be disk druid via the graphical interface. This does not appear to be useful when attempting to configure a multiboot machine with a windoz product on another partition.
The default behavior of Disk Druid is to do what you describe unless there are partitions which already exist (say you already have Windoze installed) If you would like to customize your disk partitioning, then you will want to run the installer in expert mode (type "expert" at the boot prompt) and use fdisk to partition the drive(s)
Compaq Bug Tracking Number: 180274
Commit pushed to master at https://github.com/openshift/origin https://github.com/openshift/origin/commit/7e08c956e7e92bd63cad38771f2eba36fedf42b2 Merge pull request #6615 from rhcarvalho/issue6199-new-build-dockerfile Merged by openshift-bot