Hello, Question: why is it not possible to mount a Btrfs Partition created with SLES 11 from a SLES 12 in r/w mode, I can mount in read only mode with warnings ? is this a ACL Problem, the Partition is a root (/) Partition from SLES 11. -- mit freundlichen Grüßen / best Regards, Günther J. Niederwimmer