[Lucifer]

So ... i found how to upgrade ...

1. Flash beta 2
2. boot and wait for partition resize.
3. SSH login
4. Exit xbian-config
5. $ sudo -s
6. # service xbmc stop
7. # apt-get update
8. # apt-get install xbian-package-kernel
9. # apt-get install dpkg
10. # apt-get install xbian-package-firmware
11. # reboot
12. Wait for SSH service to start
13. Repeat steps 3 to 5.
14. # dpkg --clear-avail
15. # apt-get update
16. # apt-get upgrade
17. # apt-get dist-upgrade
18. # apt-get autoremove
19. # apt-get install (the last held back package (CEC)).
20. # apt-get autoremove
21. # reboot

WARNING! If you use XBMC Backup - DO NOT RESTORE FROM IT!