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I tried using an Ubuntu 18.04 daily image with XFS and was able to successfully install org.gnome.Recipes with --system. Looking at the ostree package, it looks like 2018.4-2 was synced from Debian into bionic on 2018-04-18 [0]. Therefore I am going to mark this bug as fix released. 0 - https://bugs.launchpad.net/ubuntu/+source/ostree/2018.4-2 ** Tags added: flatpak-usability ** Changed in: ostree (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764680 Title: Can't install flatpaks on systems with brtfs/xfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ostree/+bug/1764680/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs