Time Capsule issue on ReadyNAS NV+ v2

Hi

I have a ReadyNAS NV+ v2, 2 x 3GB Seagate Barracuda's.
I have a Macbook with Mavericks and I am using the Time Machine addon.

I am getting the usual, "Time Machine completed a verification of your backups. To improve reliability , Time machine must create a new backup" message..."

I got this before with my old duo and I was able to fix the sparsebundle using instructions similar to those here -> http://www.garth.org/archives/2011,08,27,169,fix-time-machine-sparsebundle-nas-based-backup-errors.html

Only problem is my old ReadyNAS was a Duo and had a sparc architecture and the instructions worked for me, my NV+ v2 is ARM is blocking at step one :

chflags -R nouchg /Volumes/{name of your network share}/{name of}.sparsebundle

The command chflags is not available, any ideas of a workaround? Is it possible to install it?

thanks