1a17a9a9ba
use a consistent approach for checking if the backing filesystem is compatible with the storage driver. also add an error-message for the AUFS driver if an incompatible combination is found. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> Upstream-commit: 1fc0acc9ae77752858057d1f6f8487ccd82372be Component: engine