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[Solved] Data recovery of unique file type(s)
(lemmy.world)
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No worries 😁 lol I've been kind of obsessing over this issue, reading timeshift's code and stuff. Timeshift uses rsync under the hood to do file copying when not in btrfs mode, which uses the delete excluded option to keep excluded files out of snapshots. I was not able to determine if a cancelled snapshot would be rolled back with rsync going the other way, but it would be a major timeshift bug to delete excluded files on restore so I doubt that happened.
Timeshift dos say that it has rsync create hard links for local snapshots on the same fs, so that could complicate matters. even though ncdu supports hard links and not double counting them, I tested deleting hard linked files and it only deletes the file entry from one folder even though it's aware that the file is used in another folder in the tree.
With that much free space you're almost guaranteed that the files are still there, even after a rebuild. Idk if you want to get more in depth let me know