rsync - Sep 2014 - Preserve ZFS ACLs when syncing to Linux (ext4)

Hello,

I am using rsync 3.1.0 on Solaris 11 and Ubuntu 14.04. I would like to be able
to preserve ZFS (aka NFSv4) ACLs that are set on a ZFS filesystem on a Solaris
system when rsyncing to a Linux (ext4) backup server. I know that ext4 does not
support RichACLs, but I believe rsync has the ability to store this extra data
and then restore it if synced back to a filesystem that knows how to use it?
Testing thus far I have used these options, but ACLs do not appear to be
preserved when I sync them back to the ZFS filesystem on Solaris:
rsync -av --xattrs --acls --remote-option=--fake-super --fake-super root at
solaris:/export/share /path/to/local/ext4/dir

Is this possible?

Thanks,

Andrew Martin

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You only want --fake-super on the writing end so drop the
- --remote-option=--fake-super.  You would use that if you were pushing
instead of pulling.

As far as the ZFS specific stuff goes I am not sure (I use ZFS on my
backups and ext4 on my servers so I am the exact opposite here) so be
sure to try a backup and restore to make sure it gets everything.

On 09/24/2014 04:53 PM, Andrew Martin wrote:
> Hello,
> 
> I am using rsync 3.1.0 on Solaris 11 and Ubuntu 14.04. I would like
> to be able to preserve ZFS (aka NFSv4) ACLs that are set on a ZFS
> filesystem on a Solaris system when rsyncing to a Linux (ext4)
> backup server. I know that ext4 does not support RichACLs, but I
> believe rsync has the ability to store this extra data and then
> restore it if synced back to a filesystem that knows how to use it?
> Testing thus far I have used these options, but ACLs do not appear
> to be preserved when I sync them back to the ZFS filesystem on
> Solaris: rsync -av --xattrs --acls --remote-option=--fake-super
> --fake-super root at solaris:/export/share /path/to/local/ext4/dir
> 
> Is this possible?
> 
> Thanks,
> 
> Andrew Martin
> 
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