Date: Wed, 05 Dec 2007 10:10:20 -0700 From: James Harrison <jamesh@lanl.gov> To: Jerry McAllister <jerrymc@msu.edu> Cc: Steve Franks <stevefranks@ieee.org>, User Questions <freebsd-questions@freebsd.org> Subject: Re: copying just / (not /tmp, /usr, etc) (rsync -x failed) Message-ID: <1196874620.32615.15.camel@p25dual1.lanl.gov> In-Reply-To: <20071205154148.GB21074@gizmo.acns.msu.edu> References: <539c60b90712041638s78b4e40fn67434f2dce5e27e7@mail.gmail.com> <20071205154148.GB21074@gizmo.acns.msu.edu>
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On Wed, 2007-12-05 at 10:41 -0500, Jerry McAllister wrote:
> On Tue, Dec 04, 2007 at 05:38:20PM -0700, Steve Franks wrote:
>
> > I have / on one slice, and [usr,tmp,var] on others. I want to move
> > just / to a new disk, which seemed to be what rsync -x ("do not cross
> > filesystems") was intended for. It failed, however, as df shows 20k
> > blocks in /, and rsync filled up the target slice with 50k blocks, so
> > obviously it blew right past the 'end' of / - did I miss something? Is
> > there no other way except to umount [tmp,usr,var]?
>
> I would use dump/restore.
>
> Build the filesystem in the new disk partition with fdisk, bsdlabel
> and newfs as needed. Then mount the new partition somewhere -
> example:
> mkdir /newpart
> mount /dev/ad1s1a /newpart
> (presuming new disk is ad1, slice is 1, partition is a)
> Doesn't hurt to do an fsck on it here before writing to it, but it
> probably isn't really needed.
>
> Then, run the dump/restore
>
> cd /newpart
> dump 0af - / | restore -rf -
>
> This will get all of / as you want. The other mountpoints for /tmp, /usr
> and /var will be copied, but not the contents of those filesystems. You
> probably want that.
>
> ////jerry
>
> >
> > Thanks,
> > Steve
Everyone's recommending dump/restore for copying file systems, and
there's something that I've never really been clear on.
The nice thing about rsync is that it's network aware. Can dump dump a
file system across a network?
James
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