Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcdc!hpfcmgw!rodc From: rodc@hpfcmgw.HP.COM (Rod Cerkoney) Newsgroups: comp.sys.hp Subject: Re: How do you get to console debug mode on HP-9000/300 ? Message-ID: <1080066@hpfcmgw.HP.COM> Date: 12 Jul 89 15:54:11 GMT References: <2434@cpoint.UUCP> Organization: HP Fort Collins, CO Lines: 25 I don't know of a way to do what you want via the BOOT ROM but I think this will help. Current versions of hp-ux are shipped with a kernel debuger. To use it connect a terminal to the human interface cards' serial interface (select code 9). Next from attended boot mode ask for SYSDEBUG (1D), this loads the kernel debugger which in turn loads hp-ux. From the system console, usally a bit mapped device, press SHIFT-CONTROL-RESET simultaneously, B*L*A*M*O, your in the debugger on the terminal connected to S/C 9. The kernel debugger provides fuctionality similar to ADB. For more details consult the HP-UX Driver Development Guide, P/N 98577-90010. Hope this helps. Rod Cerkoney.