I hope this is an appropriate place to ask user questions. I'm trying out snapshot and replication. I have /dev/sda3 on / type btrfs (rw,relatime,ssd,space_cache) /dev/sda3 on /home type btrfs (rw,relatime,ssd,space_cache) create a subvolume for snapshots: #btrfs sub create /.snapshots Create subvolume '//.snapshots' [root@nbecker1 nbecker]# btrfs subvolume list / ID 256 gen 563396 top level 5 path home ID 258 gen 563396 top level 5 path root ID 372 gen 563396 top level 258 path .snapshots [root@nbecker1 nbecker]# btrfs sub snapshot -r /home /.snapshots Create a readonly snapshot of '/home' in '/.snapshots/home' [root@nbecker1 nbecker]# btrfs subvolume list / ID 256 gen 563398 top level 5 path home ID 258 gen 563398 top level 5 path root ID 372 gen 563398 top level 258 path .snapshots ID 373 gen 563398 top level 258 path .snapshots/home [root@nbecker1 nbecker]# btrfs send /.snapshots/home > /dev/null At subvol /.snapshots/home ERROR: open root/.snapshots/home failed. No such file or directory -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html