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Date: Sat, 24 Feb 2001 23:10:21 -0600
From: Scott Allendorf <scott-allendorf@uiowa.edu>
Organization: The University of Iowa, Department of Physics and Astronomy
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To: Jonathan Hanna <pangolin@home.com>
Cc: freebsd-stable@FreeBSD.ORG, sos@FreeBSD.org
Subject: Re: "cannot find label (no disk label)"
References: <200102250116.f1P1G1D77865@cr222190-a.crdva1.bc.wave.home.com>
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I think I am seeing the same thing on an old 486/66.  I believe I
have found the commit that caused the problem, but have not had time to 
take this further (it takes about 27 hours to do build/installworld on
this system).  The kernel from 2000.10.25.06.00.00 boots correctly.
One built from 2000.10.25.06.55.00 sources exhibits the problem.  The
only kernel-related commit during that window is:

http://docs.freebsd.org/cgi/getmsg.cgi?fetch=564525+0+archive/2000/cvs-all/20001029.cvs-all

I was just about to email Soren with the details, but it might make more
sense for someone with a faster machine to actually help debug this (I
am
willing but it will be slow going on this machine).

I can also add that if I attempt to install 4.2-RELEASE from the CD 
onto this disk, everything looks normal until sysinstall goes to write 
to the disk.  At that point, I get the message:

	panic: Going nowhere without my init!

Please let me know what additional information would be useful.

Cheers,

Scott

> 
> I can still boot the old kernel and mount all the partitions
> and I also tried "disklabel -B ad0s1".
> Due to the number of error messages printed, it is hard to tell
> if ad0 is found by the kernel, but I believe it is.
> Sorry if I missed something obvious, what should I do to the boot profile?
> 
> > On Sat, 24 Feb 2001, Jonathan Hanna wrote:
> >
> >>
> >> I am seeing something similar on an old Pentium (that i don't have
> >> physical access to, grrr). I attempted to upgrade from 4.0 to 4.2-stable of a
> >> couple of days ago and when the new kernel boots the
> >> "no disk label: and "Root mount failed: 22" also appear.
> >> I am told that there is also
> >> "ad0: hard read error blk=64 stat=54 ..." or some such.
> ...
> 
> Jonathan Hanna <pangolin@home.com>
> 
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