[Borgbackup] Recovery from missing segments

[Thomas Waldmann]

> So let's say I have a repo on an external disk. Now I buy a second disk and

... then you do a "borg init" on that.

> just copy all the files from the first disk.

no, don't do that.

this would lead to multiple problems:
- crypto unsecure due to AES CTR reuse
- duplicate repo id and thus cache confusion

> I'd like to avoid recreating a multi-TB repo from scratch.

that's the only really easy and safe way.


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