LiveCD 5.0.1 hangs or no console

LiveCD 5.0.1 booting hangs on udev until switching off the machine. This problem was not present with version 4.
Testcd is OK. If I use the option "noudev" the boot up is nice, except I can't open a console (konsole). Moreover I get the following error message : "Konsole is unable to open a PTY (pseudo teletype). It is likely that this is due to an incorrect configuration of the PTY devices. Konsole needs to have read/write access to the PTY devices."

Is there a way to make udev to work or konsole without udev ?

Regards