Re: Connection lost during BTRFS move + resize

[Borden <borden_c@tutanota.com>]

29 Nov 2021, 11:20 by phill@thesusis.net:
> Theoretically it shouldn't be too hard.  It's just a matter of deciding
> on a location where you can safely record the checkpoint information and
> then update the checkpoint between blocks.  That's how LVM handles
> moves safely.  In the worst case, you restart the move at the last
> checkpoint and just waste some time copying data that was already copied
> but not checkpointed.
>
Thanks again. In those other utilities, since the logs get written to a plain text file of the user's choosing, and partition moving should be offline, anyhow, it would be reasonable to expect the user to provide a safe location to stash a checkpoint file.

And, of course, if the user chooses to manipulate the file and/or forego it altogether, their funeral.
Not sure if it's a feature worth requesting, but it would keep people like me from bothering the list with these Hail Mary support requests, so probably be net-cost negative.