If I try to boot with that beta cd and AC is plugged in and the battery is in the bay I can not boot.
I get the errormessage described in the first post.
If I try to boot with that beta cd and AC is plugged out and the notebook is running on battery booting is possible.
Once the progessbar is displayed I can replug AC and Ubuntu is still booting.
I just did some tests with the live cd.
If I try to boot with that beta cd and AC is plugged in and the battery is in the bay I can not boot.
I get the errormessage described in the first post.
If I try to boot with that beta cd and AC is plugged out and the notebook is running on battery booting is possible.
Once the progessbar is displayed I can replug AC and Ubuntu is still booting.