Date: Fri, 29 Nov 2002 16:02:47 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Wesley Morgan <morganw@chemikals.org> Cc: current@FreeBSD.ORG Subject: Re: Harry Potter and the Disappearing Disklabel Message-ID: <1515.1038582167@critter.freebsd.dk> In-Reply-To: Your message of "Fri, 29 Nov 2002 09:41:56 EST." <20021129093417.V7358-100000@volatile.chemikals.org>
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In message <20021129093417.V7358-100000@volatile.chemikals.org>, Wesley Morgan writes: >Yesterday morning I was having some trouble with XFree consuming much more >cpu time than necessary... A truss showed that some kind of shared memory >issue going on, but also froze my system hard. After rebooting (kernel was >from Nov 26 or 27) fsck could not check my one dirty UFS2 partition. Had >to newfs and mtree to recreate /var. No big deal, and I saved an image of >it beforehand. > >After rebooting, there was... NOTHING. GRUB errored out and wouldn't boot. >Nothing could see my partitions. After a minimal 4.7-R install (DP2 >disklabel whined about offsets and some other STRANGE error messages, >so I went with 4.7) on a small fat32 partition, I discovered that the >disklabel was empty. Had to edit it by hand... Booted up fine, made >a backup, rebooted, and nothing. Not only was there NOTHING, but the >disklabel on the new 4.7 install had vanished as well. This time the >disklabel had to be recreated with -w -r AND the boot blocks had to be >reinstalled. > >I've seen one post similar to this, but not much else. I think maybe the >UFS2 problem had to do with Kirk's recent changes, but the disklabel >issue... I'm wary to reboot my machine! What in the hell could be causing >this? I'm tempted to point the finger at GEOM, but hate to say anything >like that. I have absolutely no idea how this can happen, and would really appreciate if people can try to find a way to reproduce it, I've tried today and couldn't :-( -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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