Upgrading from Beta 2 Error

[Eneas]

Hello,

I try to upgrade from beta2. What I have already done is in the config-tool
1. apt-get update
2. apt-get upgrade and selected all packages. It didn't install all, but after reboot a few more could be installed. However, 10 more packages are not installed.

Terminal

root@xbian:/home/xbian# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
binutils ca-certificates dosfstools locales lua5.1 openssh-client
openssh-server openssl ssh unzip
10 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
23 not fully installed or removed.
Need to get 0 B/12.8 MB of archives.
After this operation, 123 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Create a snapshot of '/tmp/btrfs-snap/root/@' in '/tmp/btrfs-snap/root/@btrfs-auto-snap_apt-run-2015-01-27-2331'
@btrfs-auto-snap_apt-run-2015-01-27-2331, 1 created snapshots, 0 destroyed snapshots, 0 warnings.
Preconfiguring packages ...
Setting up wpasupplicant (1.0-3+deb7u1) ...
mv: `/lib/init/rw/sendsigs.omit.d/wpasupplicant.wpa_supplicant.wlan0.pid' and `/run/sendsigs.omit.d/wpasupplicant.wpa_supplicant.wlan0.pid' are the same file
dpkg: error processing wpasupplicant (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
wpasupplicant

What are the next steps to upgrade to the current RC?
Thank you!