Kernel Trap during installworld caused unrecoverable system
Hi folks. I was unfortunate enough to encounter a kernel trap in single user mode yesterday when upgrading from 7.1-RC1 to -RC2 using the typical build/install world. I'm still not sure what caused the trap, as the system was rebooting when I saw the screen. As one would expect, this led to an irrecoverable system; the system would automatically drop me into single user mode, as it could only mount the root directory; /bin/sh and /bin/csh would not work (had to use /restore/csh for the minimal digging I actually could do). So, now to the question. Given I could not mount anything other than /, would there have been any way for me to gather debugging information on what caused this failure? (FWIW, I am certain it is not a hardware failure.) Regards, -- Glen Barber ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Kernel Trap during installworld caused unrecoverable system
Glen Barber wrote: Hi folks. I was unfortunate enough to encounter a kernel trap in single user mode yesterday when upgrading from 7.1-RC1 to -RC2 using the typical build/install world. I'm still not sure what caused the trap, as the system was rebooting when I saw the screen. As one would expect, this led to an irrecoverable system; the system would automatically drop me into single user mode, as it could only mount the root directory; /bin/sh and /bin/csh would not work (had to use /restore/csh for the minimal digging I actually could do). So, now to the question. Given I could not mount anything other than /, would there have been any way for me to gather debugging information on what caused this failure? (FWIW, I am certain it is not a hardware failure.) You can proceed recovering the system using the tools in /rescue, and once you have shared libraries working again, run savecore to save the crashdump (assuming one was made). Kris ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Kernel Trap during installworld caused unrecoverable system
On Fri, Dec 26, 2008 at 12:34 PM, Kris Kennaway k...@freebsd.org wrote: Glen Barber wrote: Hi folks. I was unfortunate enough to encounter a kernel trap in single user mode yesterday when upgrading from 7.1-RC1 to -RC2 using the typical build/install world. I'm still not sure what caused the trap, as the system was rebooting when I saw the screen. As one would expect, this led to an irrecoverable system; the system would automatically drop me into single user mode, as it could only mount the root directory; /bin/sh and /bin/csh would not work (had to use /restore/csh for the minimal digging I actually could do). So, now to the question. Given I could not mount anything other than /, would there have been any way for me to gather debugging information on what caused this failure? (FWIW, I am certain it is not a hardware failure.) You can proceed recovering the system using the tools in /rescue, and once you have shared libraries working again, run savecore to save the crashdump (assuming one was made). Hi, Kris. I'll do some digging later today. I appreciate your response. -- Glen Barber ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
