I've installed the VM (on VirtualBox) and successfully started working.
The FS is limited to 11 GB as shown:
[cloudera@localhost ~]$ hadoop fs -df -h
Filesystem Size Used Available Use%
hdfs://localhost.localdomain:8020 11.1 G 59.0 M 7.9 G 1%
how can I enlarge the HDFS FS capacity to 50GB?