On Fri, Feb 09, 2001 at 12:13:40PM +0200, Danny Braniss wrote: > In message <[EMAIL PROTECTED]>you write: > }It its the bios disk probe that is causing the machine to fault. > > I can now confirm that it's a divide by zero in the Adaptec BIOS GRRRRRR. > (in biosdisk, when 'probing' the adaptec) and it happens on a AIC 7899, but > works ok on some other ADAPTECs. > > the problem is nasty because it's not easy to zero out the first block of the > disk if you can't get the os working :-) > > }I suppose you really dont need to probe the disks when you are netbooting. > > i got the pxeboot not to check the disks but then the kernel stepped on it :-( > > is there a way to prevent BTX to halt if the 'caller' expects a div/zero? > > (in the days of the PDP/11 i could trap such things, print a message, and > continue). > > danny > > > > > To Unsubscribe: send mail to [EMAIL PROTECTED] > with "unsubscribe freebsd-stable" in the body of the message > > end of the original message I had this problem a couple of days ago with an Adaptec AHA-2940UW SCSI controller and an IBM DDRS-34560W SCSI disk. I created one large slice in dangerously dedicated mode and I wasn't able to boot anymore: I got "BTX halted" and the registers dump. I low-level formatted the disk using the controller BIOS, recreated the slice (this time in coperative mode!) and everything worked! Francesco Casadei P.S. The DDRS-34560W uses part of the buffer for the firmware so I could safely low-level format the disk. Check if you can low-level format your disk without destroying it! To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-stable" in the body of the message
