I'm making a note of this. I am still working on ZFS migration strategies in my spare time. The snapshots are really important! I ran a zfs send @snapshot and piped it to a zfs recieve and then had planned on running another zfs send with an incremental. However, I tried to do this from memory ("You just add an '-i' - right?" No!) I got confused and deleted the target snapshot. This is bad if you want to send an incremental. Plus- more importantly - I wouldn't have gotten the confusing error if I had send the incremental like this:
# zfs send -i store/messaging@today store/messaging@L8R ...
I was simply running the first command - "send the snapshot". You have to say "-i" but you are saying I want an incremental of the earlier snapshot (@today), use the later snapshot (cleverly named @L8R) to create the delta. Whew! Glad I caught that in time. Test systems are good!
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