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Date:      Fri, 30 Apr 1999 12:45:08 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Graeme Tait <graeme@echidna.com>
Cc:        freebsd-questions@FreeBSD.ORG, info@boatbooks.com
Subject:   Re: Moving OS to a new disk
Message-ID:  <Pine.BSF.4.03.9904301243330.16807-100000@resnet.uoregon.edu>
In-Reply-To: <3729F55A.7E06@echidna.com>

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On Fri, 30 Apr 1999, Graeme Tait wrote:

> I have a system (2.2.8S/CAM) in which the primary hard drive has become 
> flaky (it powers itself down periodically). This drive contains all the 
> OS.
> 
> I have a second identical drive, and my thought to ease replacement is to 
> install the second drive as da1 (SCSI ID 1; the existing drive is da0/ID 
> 0), partition it identically, and transfer everything from the old drive. 
> I'd then remove the old drive, and jumper the new drive as SCSI ID 0 and 
> have it appear as da0.

> Do I need to change the disklabel on the new drive or do anything else in 
> changing the SCSI ID - that is, is the device name embedded in the label, 
> etc.?

No.  Just make sure /etc/fstab is correct before you pull the switch.
I've hung myself many a time by forgetting to fiddle that file. :)

> What is the best way to make a literal copy of the old drive on the new? 

Either ue a pipe of tars or dump piped to restore.  

> I've found that tar doesn't copy all the device nodes properly (it says 
> "minor number too large; not dumped" for many devices).

There's an option to key this on.  Carefully read your man pages.

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org



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