This is probably an issue of incompatible pool features. Check what you have active on the Ubuntu side:
zpool get all | grep feature | grep active Then compare that to the chart here: http://open-zfs.org/wiki/Feature_Flags There is an as-yet-unimplemented proposal upstream to create a features “mask” to limit the features to those with broad cross-platform support. If it’s not a features issue, I think there was some unintentional send compatibility break. I don’t have the specifics or a bug number, but a friend ran into a similar issue with 18.04 sending to 16.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1854982 Title: Lost compatibilty for backup between Ubuntu 19.10 and FreeBSD 12.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1854982/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
