My goal was to install Haiku R 1/Alpha 1 on a GPT (GUID Partition Table) formatted disk that already held several operating systems. Along the way to success, I had various difficulties. The basic problem is that Haiku doesn't really handle GPT right now, but a GPT disk sort of looks like an MBR (Master Boot Record) disk, and the MBR table may or may not accurately reflect the actual contents. Luckily, there are tools and techniques available to make this work. This article describes the steps I took.