NOTE: If you wish to install NetBSD on your whole disk, i.e. you do not want DOS or any other operating system to reside on your hard disk, you can skip this section and go on to the section that describes installation, below. If you're upgrading your system from a previous release of NetBSD, you shouldn't have proceeded directly to the section about upgrading; you need none of the information presented here. First and foremost, before beginning the installation process, MAKE SURE YOU HAVE A RELIABLE BACKUP of any data on your hard disk that you wish to keep. Repartitioning your hard disk is an excellent way to destroy important data. Second, use the Human68k "FORMAT.X" program to format your hard disk. NetBSD needs first partition and second partition to bootstrap. Finally, do whatever is necessary to restore order to the partition you took space away from. If it was a DOS partition, you probably will need to use "format" to create a new file system on it, and then restore your important files from your backups. Other operating systems will have different needs; most will need to reformat the partition, and if it was their "main" partition, will probably need to be reinstalled. Your hard disk is now prepared to have NetBSD installed on it, and you should proceed with the installation instructions.