Fwd: Resize HAMMER filesystem

Pierre Abbat phma at bezitopo.org
Thu May 2 21:43:48 PDT 2013

On Thursday, May 02, 2013 21:08:21 Sven Gaerner wrote:
> On Thu, May 02, 2013 at 07:34:14PM +0200, Charles Rapenne wrote:
> > Let imagine you have dragonfly installed on a 250 Gb disk, and you
> > want to move it to a 500 Gb disk without reinstalling, how could you
> > dump your existing disk and grow the HAMMER partition ?
> Please have a look at the man page. You can achieve this via "hammer
> mirror-copy". This also ensures that all the stored history is copied.
> You would like to run something like this:
>  $ newfs_hammer -L DATA2 /dev/serno/ABCDEF
>  $ mount /dev/serno/ABCDEF /mnt
>  $ mkdir /mnt/pfs
>  $ hammer mirror-copy /pfs/source /mnt/pfs/master
> When the copy operation has been finished, you have to upgrade the
> destination PFS to be a master PFS, otherwise you cannot read-write mount
> the filesystem.
> You will be asked to create the destination PFS. Then everything will be
> copied. You can also interrupt and continue at a later time. The source can
> also be used during the copy operation.

Can I copy the root filesystem this way? Or do I use cpdup and lose the 

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