Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ihlpa!ihnet!bryan From: bryan@ihnet.ATT.COM (b. k. delaney) Newsgroups: comp.sys.atari.st Subject: Re: Spinning disk HD boot Keywords: Spinning Message-ID: <593@ihnet.ATT.COM> Date: 16 Jan 88 01:34:18 GMT Organization: AT&T Bell Laboratories - Naperville, Illinois Lines: 22 When you use AHDI to boot off of a hard disk you should have a floppy disk in drive A. The ST will not boot off of this disk unless it has a boot sector on it. With a formated disk in drive A the ST will boot Very quickly from the hard disk. I usually keep a copy of "SHIP.PRG" on drive A, which I usually run before I turn off the HD. Note be sure there are no open windows to the Hard Disk when you run SHIP.PRG. As for why the light stays on, I can only guess it has to do with the fact the ST is trying to read drive A when no disk is in drive A, and therefore is getting some sort of read/drive error. Unlike MS-DOS system The ST looks for a BOOT sector first at the Cartridge Port then on Drive A, Drive B then it looks for a Boot sector on DMA Logical Unit 1 (The Hard Disk), If it finds a boot sector on drive A it boots drive A and If It Does not Find a boot Sector on Drive A it looks else where until it finds a Boot Sector. When you Instal AHDI you are actually installing a Boot Sector on the Hard disk. ihnp4!ihnet!bryan Bryan DeLaney AT&T Bell Laboratories.