On Wed, 19 Oct 2022, Lucas Castro wrote:
The array must be identified somehow, in mdadm, array is by uuid!
And I have two disks, which have the same uuid but are not part of the same array. How do I tell mdadm that they aren't part of the same array? I can't believe I'm the only person who has cloned a machine by breaking a raid1 array. Or someone who has used dd to clone a disk that they then want to mount in parallel with the original