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Date:      Tue, 5 Nov 2002 15:57:30 -0500 (EST)
From:      Jerry McAllister <jerrymc@clunix.cl.msu.edu>
To:        neil@mpfreescene.com
Cc:        freebsd-questions@freebsd.org, jerrymc@clunix.cl.msu.edu ('Jerry McAllister')
Subject:   Re: Kernal Panics
Message-ID:  <200211052057.gA5KvUb25515@clunix.cl.msu.edu>
In-Reply-To: <00ac01c28507$d7364ac0$0200a8c0@b1> from "Neil Doody" at Nov 05, 2002 08:13:29 PM

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> 
> Hi, this method you speak of here.
> 
> Would it be possible to perform these tasks in multiuser mode, i.e. via
> ssh ?  As I have no console to this server.

Yes, but then there is no guarantee that the copy is exact because 
they might change during the process of the dump/restore.  But, if the
system or at least that file system is not heavily used or you don't
need to worry about an exact point copy, then no problem.

////jerry

> 
> -----Original Message-----
> From: Jerry McAllister [mailto:jerrymc@clunix.cl.msu.edu] 
> Sent: 05 November 2002 19:44
> To: neil@mpfreescene.com
> Cc: freebsd-questions@FreeBSD.ORG
> Subject: Re: Kernal Panics
> 
> > 
> > Hi, ive been getting kernel panics, number 12's for some time, ive had
> > the whole load of hardware changed, the only thing that is the same
> now
> > is the hard disk drive.
> > 
> > We thought this had cured the problem, but I had one the other day.
> > Okay, I thought this was a one off, but I just had another, only this
> > time it is different.  Is this possible that it is the hard drive?
> > 
> > How can I make a duplicate image of that hard drive to another what
> > tools will copy it.
> 
> If the other drive will be big enough and if it will be running on
> a machine with the same major version of the OS, use dump(8)/restore(8).
> 
> USe fdisk(8)/disklabel(8)/newfs(8) to put the appropriate file systems
> on 
> the new disk then dump the old one and restore to the new one. 
> Something like:  (Assuming the old file system is mounted as /oldfs and 
> the new is mounted as /dupfs)
> 
>   cd /dupfs
>   dump 0vf - /oldfs | restore rf -
> 
> repeat for however many file systems you need to save and have room for.
> 
> Of course, if it won't read the old disk, then the problem is more
> difficult.
> 
> ////jerry
> 

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