rsync problem

[Malcolm Kay]

On Sat, 6 Sep 2003 05:34, Jim Durham wrote:
> On Tuesday 02 September 2003 11:59 am, Malcolm Kay wrote:
> > On Tue, 2 Sep 2003 23:27, Guy Van Sanden wrote:
> > > Hello
> > >
> > > I'm using rsync to sort of mirror two 40GB disks (once a day).
> > > All partitions work as expected, but root is weird (and as you
> > > can see below, I sort of made it too small).
> > >
> > > I use this command:
> > > /usr/local/bin/rsync -ax --delete / /mirror/rootfs
> > >
> > > But this is what I'm getting:
> > > df -m
> > > Filesystem  1M-blocks Used Avail Capacity  Mounted on
> > > /dev/ad0s1a       154   71    70    51%    /
> > > /dev/ad1s1a       154  138     4    97%    /mirror/rootfs
> > >
> > > So, there's a 67 MB difference between both.
> > > I started out wite a cleanly formatted mirror (UFS2)
> > >
> > > My system is FreeBSD 5.0 RELEASE-p11
> > >
> > > Thanks for any help
> > >
> > > Guy
> >
> > I expect rsync does not recognise hard linked files as such and
> > makes separate images of each directory link. Looking through
> > /stand on my 4.8 system I see that this would create about 60Mb
> > extra.
> >
> > You might do better with dump and restore:
> > # cd /miiror/rootfs
> > # dump -0 -a -f - / | restore -r -f -
> >
> > Malcolm
>
> rsync -H   preserves hard links.  Maybe try rsync -Hax --delete ?
>
> -Jim

Certainly a more convenient approach than my suggestion.
I should have thought to take a look at the man page ;-)

Thanks

Malcolm