[SOLVED] Problem updating

[joan.v.s]

Hi, I have a problem when I try to update to the last version by this page:

http://www.xbian.org/2013/07/xbian-1-0-beta-1-1-hotfix-for-xbian-1-0-beta-1/

When I finish the steps:

Upgrading from XBian 1.0 Beta 1

SSH into XBian and execute the following commands (how to SSH in).
sudo su
stop xbmc
sudo apt-get update
sudo apt-get install xbian-update -y

The system say that:

Errors were encountered while processing:
nfs-common
E: Sub-process /usr/bin/dpkg returned an error code (1)

I'm doing something wrong? Thanks. I have the 512 Raspy.