Date: Thu, 7 Sep 1995 02:08:45 -0500 (CDT) From: Mike Pritchard <mpp@mpp.minn.net> To: gibbs@freefall.freebsd.org (Justin T. Gibbs) Cc: freebsd-current@freebsd.org Subject: Re: Superblocks getting trashed with -current Message-ID: <199509070708.CAA01859@mpp.minn.net> In-Reply-To: <199509062141.OAA24348@freefall.freebsd.org> from "Justin T. Gibbs" at Sep 6, 95 02:41:29 pm
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Justin T. Gibbs wrote: > > >My root superblock was trashed again at this point. No, it wasn't > >DOS, since the other times it happened, DOS never entered the picture. > >A quick look showed that most of the superblock was zeroed out (maybe > >the first 1024 bytes). I've got to go install some hardware for > >a customer right now, but I'll verify exactly how much data was > >munged when I get home later, and see if I can figure out what > >the few non-zero bytes might have been. > > Are you sure that your paritition information is correct? It sounds > like your FreeBSD partition is overlapping the DOS one. If they have been wrong, then they have been wrong for 7+ months. And as I said in my previous message, two of the three times in the past month that my superblocks have been trashed, I never booted DOS. Just straight shutdown FreeBSD then reboot FreeBSD right away. DOS never entered into the picture. I just triple checked, and none of my partitions overlap. I'm sure that something in early Aug. is the cause of this, since I have a kernel from 7/31/95 that works just fine, but any the kernel I have from 8/9/95 (or later) seems to cause this problem once in a while. At least I've been able to narrow it down somewhat, since I had "good file systems" in single user mode right before a reboot. I'll play around some more and see what else I can come up with. Since I've seen one other report of trashed superblocks in the last couple of weeks, I don't think that this is a totally isolated case. -- Mike Pritchard mpp@mpp.minn.net "Go that way. Really fast. If something gets in your way, turn"
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