Comment 8 for bug 1382632

This ends up being a regression of the curtin changes in bug 1313550.
curtin is extracting a tarball with '--xattrs --xattrs-include=* --acl'.

Its the '--acl' that is problematic.

Even though the tarball being extracted did not have acl stored in it tar creates default acl on extraction.

The simplist fix is to for us to remove '--acl' from curtin's extraction parameters.
http://bazaar.launchpad.net/~curtin-dev/curtin/trunk/view/head:/curtin/commands/extract.py

This change can be made locally on the maas region controller in the installed 'python-curtin' package.