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Date:      Fri, 10 Jun 2005 16:03:43 -0400
From:      "Haulmark, Chris" <chris@sigd.net>
To:        "Tony Shadwick" <tshadwick@goinet.com>, <freebsd-questions@freebsd.org>
Subject:   RE: system cloning
Message-ID:  <6FC9F9894A9F8C49A722CF9F2132FC220445A599@ms05.mailstreet2003.net>

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Someone broke the silence:=20

> Here's my scenario:
>=20
> I have a system that we are running in production that there was an
> oversight on, and it has a single hard drive installed (32GB SCSI I
> believe), rather than a 3 drive raid5 array.  We would like
> to correct
> this, but we have all sorts of up-to-date packages and config files
> that we've tweaked that we would hate to just start over on it.

There are many methods.  If it was my situtation and it's only up to 32 =
GB
of space, I would do this:

1. Get a temporary computer with at least 32 GB available.  Set it up as =
a
file server (Samba) with FreeBSD.

2. Mount it as a NFS server.

3. Use cp -rp for those directories (etc, usr, home, and all the =
others). Also
write down the partitions.

4. Replace the single hard drive with 3 hard drives and set up RAID 5.

5.  Install the exact same partitions that you originally had on the =
previous
setup system. =20

6.  Mount the file share on your temporary computer system with the =
data.

7.  Copy everything back except those in /boot

8.  Modify the fstab file if there is a difference between the original =
and
the new setup.

I might have forgot something.

Chris Haulmark


> There's a tool for OSX called "Carbon Copy Cloner" that would
> take care of
> this for me, which is basically a series of copy commands
> that takes the
> filesystem from one drive to another, preserving EVERYTHING
> important, and then bless the boot volume.
>=20
> Is there anything similar I can do on FreeBSD?  My boss
> thinks I should be
> able to tar up the entire filesystem, create the raid array,
> and untar the
> whole thing on the new array.  I seem to think this will fail
> due to block
> devices that have changed, fstab entries that have changed (though
> this is correctable), and symlinks that don't nicely come across.
>=20
> Thoughts?
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