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My root node is LUKS encrypted, and it uses a key file, instead of user input password to unlock it.

I know in Grub2, I can use

insmod cryptodisk
insmod luks
cryptomount -u <uuid>

But I have no idea how to use a key file to unlock the disk.

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up vote 1 down vote accepted


insmod (hd0,1)/routeto/keyfile.file

change (hd0,1) (if necessary)and put the mounting point of the keyfile file system, sda or whatsoever...

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