Hey Hugo.
Thanks for your explanation. I assume such a swapped send/receive would fail at least gracefully? On Fri, 2021-01-29 at 19:20 +0000, Hugo Mills wrote: > In your scenario with MASTER and COPY-1 swapped, you'd have to > match the received_uuid from the sending side (on old COPY-1) to the > actual UUID on old MASTER. The code doesn't do this, so you'd have to > patch send/receive to do this. Well from the mailing list thread you've referenced it seems that the whole thing is rather quite non-trivial... so I guess it's nothing for someone who has basically no insight into btrfs code ^^ It's a pity though, that this doesn't work. Especially the use case of sending back (backup)snapshots would seem pretty useful. Given that this thread is nearly 6 years, I'd guess the whole idea has been abandoned upstream?! Cheers, Chris.