I understood it as "it doesn't touch/ignore the data". But I guess we mean the same thing. You are right. All of the old files will be in areas btrfs should co

I understood it as "it doesn't touch/ignore the data". But I guess we mean the same thing. You are right. All of the old files will be in areas btrfs should consider used. So it should correctly restore the state from before the migration. Thanks!