I installed Hadoop2.2.0 and Hbase0.98.0 and here is what I do :
$ ./bin/start-hbase.sh $ ./bin/hbase shell 2.0.0-p353 :001 > list
the
if it's happening in VMWare or virtual box please restart Cloudera by command init1 please check you have root privilege and retry hope it will help :)
init1
hbase shell