Comment 6 for bug 1766850

Reviewed: https://review.openstack.org/569103
Committed: https://git.openstack.org/cgit/openstack/diskimage-builder/commit/?id=2e6a19a018197f1f9dda54763e65b06e5ad16d1a
Submitter: Zuul
Branch: master

commit 2e6a19a018197f1f9dda54763e65b06e5ad16d1a
Author: Stanislav Makar <email address hidden>
Date: Tue May 15 10:42:31 2018 +0000

    Add Ubuntu 18.04 support

    Use squashfs for more recent Ubuntu releases

    Change-Id: I80df28be6e2a5e03ae1450e84fc05715f21a7750
    Closes-bug: 1766850