Note the two-layer partitioning system in OpenBSD: the first step sets up traditional fdisk-viewable partitions, while the second disklabel step sets OpenBSD sub-partitions.
Regardless of your partitioning decision, make sure you follow the "Creating a disklabel" section step by step, with the only deviation being to create larger /usr and /home partitions, if you desire.
无论您的分区决策如何，确保遵循 “创建磁盘标签（Creating a disklabel）” 部分中的步骤，惟一的例外是：您希望的话，可以创建较大的 /usr 和 /home 分区。