Sebastiaan van Stijn 0abb8dec3f Remove support for overlay/overlay2 without d_type ... Support for running overlay/overlay2 on a backing filesystem without d_type support (most likely: xfs, as ext4 supports this by default), was deprecated for some time. Running without d_type support is problematic, and can lead to difficult to debug issues ("invalid argument" errors, or unable to remove files from the container's filesystem). This patch turns the warning that was previously printed into an "unsupported" error, so that the overlay/overlay2 drivers are not automatically selected when detecting supported storage drivers. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>		2017-12-04 17:10:20 -08:00
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overlayutils.go	Remove support for overlay/overlay2 without d_type	2017-12-04 17:10:20 -08:00