I started an upgrade from Natty to Oneiric and everything seemed to be ok; no errors appeared. Restarted the system, but I cannot get to the login screen anymore.
The boot messages stop with
Code:
mountall: Plymouth command failed
mountall: Disconnected from Plymouth
##What I did in a try to find a solution
1- Tried to to login using recovery mode (The system wasn't mounted in read/write mode. So, I had to
Code:
mount -o rw,remount /
2- Run update and upgrade, all packages were installed but still the same behavior is persistent.
3- run
Code:
sudo update-alternatives --config default.plymouth
to change Plymouth's theme (I have disabled the splash screen anyway but was a hopeless try)
4- tried to reconfigure Lightdm
Code:
sudo dpkg-reconfigure lightdm
5- Tried to launch Lightdm by
Code:
sudo lightdm
from the root shell, the system turned into a blank black screen directly.