PUPA would not be what it is today without the invaluable help of everybody who was kind enough to spend time testing it and reporting bugs. The following people made especially gracious contributions of their time and energy in helping to track down bugs, add new features, and generally assist in the PUPA maintainership process: NIIBE Yutaka Tsuneyoshi Yasuo Also, we thank the projects GNU GRUB, GNU Automake and LZO. Some code were stolen from them. This project is supported by Information-technology Promotion Agency, Japan.