[CentOS] Transferring system to new drive
heller at deepsoft.com
Tue Sep 14 09:53:42 EDT 2010
At Tue, 14 Sep 2010 09:39:07 -0400 CentOS mailing list <centos at centos.org> wrote:
> On Tue, Sep 14, 2010 at 09:03:13AM -0400, Robert Heller wrote:
> > At Tue, 14 Sep 2010 13:12:46 +0100 CentOS mailing list <centos at centos.org> wrote:
> > >
> > >
> > > Is there a document with instructions for this?
> > > I've had smartd warnings that a hard disk in my server is sick,
> > > so I am installing a new drive (in addition to the old).
> > >
> > Here is an article I wrote about doing this:
> > http://www.deepsoft.com/2009/01/how-to-transfer-a-linux-system-from-one-disk-to-another/
> As someone who came from FreeBSD, dump restore was always considered
> best there. Hoewver, I've heard (though not deeply investigated), that
> due to various things in the Linux kernel, dump restore isn't the best
> approach for Linux, and there will be metadata loss. DISCLAIMER--this
> isn't something I've really looked into, however last time I was going
> to do it, I saw enoughw warnings about it to make me look for another
> method. If Robert has been doing it successfully, then, chances are
> he's right. (Perhaps these changes in the Linux kernel are newer than
> the CentOS kernel.)
I've used dump & restore so many times over the years with Linux
systems to believe there is nothing wrong with using dump & restore.
Note: dump & restore are only for ext2/ext3. It does not work for
riserfs, xfs, etc. I don't know about ext4 (and the problems you've
heard about might be related to ext4 or something else).
Robert Heller -- 978-544-6933
Deepwoods Software -- Download the Model Railroad System
http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows
heller at deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/
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