Yes, although it's slightly indirect:
- make a clone of the snapshot you want to roll back to
- promote the clone
See 'zfs promote' for details.
Jeff
On Fri, Dec 11, 2009 at 08:37:04AM +0100, Alexander Skwar wrote:
> Hi.
>
> Is it possible on Solaris 10 5/09, to rollback to a ZFS snapshot,
> WITHOUT destroying later created clones or snapshots?
>
> Example:
>
> --($ ~)-- sudo zfs snapshot rpool/r...@01
>
> --($ ~)-- sudo zfs snapshot rpool/r...@02
>
> --($ ~)-- sudo zfs clone rpool/r...@02 rpool/ROOT-02
>
> --($ ~)-- LC_ALL=C sudo zfs rollback rpool/r...@01
> cannot rollback to 'rpool/r...@01': more recent snapshots exist
> use '-r' to force deletion of the following snapshots:
> rpool/r...@02
>
> So it isn't as simple as that. But what needs to be done, to preserve
> rpool/ROOT-02?
>
> Actually, I'm not concerned (that much) with preserving the clone
> rpool/ROOT-02. But I'd like to keep the contents of rpool/ROOT as
> it was when I created the @02 snapshot.
>
> Is the only possible way to create a backup of rpool/r...@02 (eg.
> of the snapshot directory /rpool/ROOT/.zfs/snapshots/02) and then
> restore it later on (eg. backup to tape, backup to someother filesystem
> using zfs send|recv, rsync, tar, ...)?
>
> Thanks a lot,
>
> Alexander
> --
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