I have Ubuntu 12.04 64 bits. When I try to run spark 2.6.3 I get up the next error:
admini@localhost:~/Spark$ sh starter Preparing JRE ... starter: 150: starter: bin/unpack200: not found Error unpacking jar files. Aborting. You might need administrative priviledges for this operation.
in version 11.10 running smoothly. Not sure what is happening.