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/boot/header.imgand the header option of crypttab readsheader=/header.img:UUID=fc0321e2-3614-e643-fd8e-1b0c8b57863a, with fc0321e2-3614-e643-fd8e-1b0c8b57863a is the partition where root is stored. I am gettingcryptsetup: WARNING: nvme0n1p1_crypt: /header.luk:UUID=e2fc0321-1436-43e6-8efd-7863a1b0c8b5 does not exist.header=/test.header:UUID=uuid,header=UUID=uuid:/test.header,header=/test.header:/dev/disk/by-uuid/uuidandheader=/dev/disk/by-uuid/uuid:/test.header, all resulting in the same error while doinginitramfs-update -u: test.header does not existpassdevscript does to get a key file from a filesystem. But a similar script doesn't seem to exist to managed detached headers.