Date: Thu, 1 Jul 2010 09:06:22 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: GNUbie <gnubie@gmail.com> Cc: maurovale@gmail.com, freebsd-stable@freebsd.org Subject: Re: Unable to boot FreeBSD 8.0-p3 Message-ID: <20100701160622.GA98823@icarus.home.lan> In-Reply-To: <AANLkTikPpVhtRgoR-Hjf84hsmphySY4ta-es30nBv-Mo@mail.gmail.com> References: <AANLkTillIqfkqfR_onhuliReFPLQ9kIq45VCbjz65mxI@mail.gmail.com> <4C280435.4060603@halplant.com> <AANLkTikwdCrsU2VH0BRZWPiFb4qIEIa-xn5z4-qnrDIE@mail.gmail.com> <AANLkTik311un3tpWYNLIFMg9g8n5M0SkWswpTxf3Sjgu@mail.gmail.com> <AANLkTilZW4DVFChouPCpx0S661zzq3EtonpJIU341gBD@mail.gmail.com> <AANLkTim8R-lZxCKqgXEIGqSG0FWewr2sxVQxZ1v1FwM5@mail.gmail.com> <AANLkTikPpVhtRgoR-Hjf84hsmphySY4ta-es30nBv-Mo@mail.gmail.com>
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On Thu, Jul 01, 2010 at 11:59:43PM +0800, GNUbie wrote: > Hello MV, > > On Thu, Jul 1, 2010 at 11:47 PM, M. Vale <maurovale@gmail.com> wrote: > > > > Hum strange I've seen this occur on 2 types of situations: > > > > 1 - virtualbox or other module loaded at boot time > > 2 - Hardware problem > > > > To fix it you have a list of small options. > > > > The first one is by booting with the FreeBSD CD and choosing rescue/upgrade > > system > > > > Other option is by removing Memory DIMM's to ensure that the problem is not > > caused by a fault RAM module. > > I am currently running memtest86 here on my livecd. If there is no > error, then this could be something else. > > Still strange for me on the stdout before my system reboots that says: > "Cannot dump. Device not defined or unavailable." Does it mean that > when loading the kernel, it cannot dump it to the / or some other > designated place? Kernel crash dumps are not enabled by default. You need to define the following in /etc/rc.conf before that will happen: dumpdev="auto" Be aware that kernel crash dumps don't always work reliably -- or rather, the savecore(8) portion (once the system is back up, writing the crash details to files in /var/crash on the filesystem). Of course, I'm going off of history (circa 2007), but there wasn't ever any indication that the problem was fixed: http://www.freebsd.org/cgi/query-pr.cgi?pr=118255 If you can't get the OS installed (e.g. this is happening when booting the FreeBSD installation CD), you're kinda out of luck, unless others know of a way around it. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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