Re: Disk full - moving rsnapshot root

On Wed, Aug 16, 2006 at 07:09:26PM +0100, David Cantrell wrote:
> On Tue, Aug 15, 2006 at 11:53:30AM -0700, Shannon S. Coen wrote:
> > The disk our rsnapshot root is on has finally filled up. I've mounted a
> > new, bigger one and would like to move the data from the old to the new.
> > Can this be done so that the inode/link structure remains intact
> > (keeping disk usage the same)?
> 
> I'd use dump and restore for this, something like:
> 
> dump -0 -f - /smalldisk | (cd /bigdisk; restore -r -f -)
> 
> Both filesystems must be the same type, and the new one must really be
> new.  newfs it just before doing this, just to be on the safe side.
> 
> cp will *not* do the job.

I tried a test with "cp -a" (GNU cp 5.2.1) copying to a different file
system, and cp -a seemed to preserve hard links (unchanged files were
still hard-linked together on the destination).

Or if you don't trust cp -a, how about 
        cd /smalldisk ; find . -depth -print | cpio -pdlm /bigdisk
or
        rsync -a /smalldisk /bigdisk

___________________________________________________________________________
 David Keegel <djk@xxxxxxxxxxxxxxxxxx>  http://www.cyber.com.au/users/djk/
 Cybersource P/L: Linux/Unix Systems Administration Consulting/Contracting

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