Comment 2 for bug 1204302

  local:
    type: local
    admin-secret: 44c57e3f247a1f838ef0eb00e808a6c2
    # Override the directory that is used for the storage files and database.
    # The default location is $JUJU_HOME/<ENV>.
    # $JUJU_HOME defaults to ~/.juju
    # root-dir: ~/.juju/local
    # Override the storage port if you have multiple local providers, or if the
    # default port is used by another program.
    # storage-port: 8040
    # Override the shared storage port if you have multiple local providers, or if the
    # default port is used by another program.
    # shared-storage-port: 8041
found the issue, if I comment out root-dir, bootstrap won't be able to complete correctly, if I leave this entry commented, bootstrap has no problem.