I have tried booting Precise cloudimg on one of my Lucid workstations with vanilla Lucid and KVM but 2.6.38-15-generic-pae (backported Natty) kernel. After removing 'console=ttyS0' the image boots properly. The other difference is that the workstation I used has Intel CPU and no other VMs running.
I still had no progress with booting Precise cloudimg on vanilla Lucid server kernel on AMD.
Just to revive the topic...
I have tried booting Precise cloudimg on one of my Lucid workstations with vanilla Lucid and KVM but 2.6.38- 15-generic- pae (backported Natty) kernel. After removing 'console=ttyS0' the image boots properly. The other difference is that the workstation I used has Intel CPU and no other VMs running.
I still had no progress with booting Precise cloudimg on vanilla Lucid server kernel on AMD.