Date: Mon, 23 Sep 1996 23:26:38 -0700 From: Darryl Okahata <darrylo@hpnmhjw.sr.hp.com> To: Bill Fenner <fenner@parc.xerox.com> Cc: freebsd-bugs@freebsd.org Subject: Re: Very disturbing boot block problems.. Message-ID: <199609240626.AA001586399@hpnmhjw.sr.hp.com> In-Reply-To: Your message of "Mon, 23 Sep 1996 18:00:19 PDT." <96Sep23.180033pdt.177476@crevenia.parc.xerox.com>
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> >When was the last time you did an fsck on the root partition
>
> Well, "fsck -n" claims that the filesystem is fine. I'll try to replicate
> the problem and run my new fsdb that prints out all of the block numbers &
> see if that sheds any light on the problem...
Well, if you want to see the code that's complaining about
"cylinder 1024", see "/usr/src/sys/i386/boot/biosboot/disk.c", function
"Bread()" (line 218 in 2.2-snap-960801). The variable "spc" is the
number of sectors per cylinder (= sectors-per-track * number-of-heads,
using BIOS geometry).
Given the small size of your root partition, I can't think of many
possibilities: either a block number is pointing off into deep space
(shouldn't fsck catch this?), or your BIOS geometry is really weird.
-- Darryl Okahata
Internet: darrylo@sr.hp.com
DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion, or policy of Hewlett-Packard, or of the
little green men that have been following him all day.
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