[CentOS-docs] Contribute to Centos wiki
jedcred
jedcred at gmail.com
Thu Jan 22 22:08:39 UTC 2009
I'd like to edit the HowTo/EncryptedFilesystem page the note on how to
create a valid keyfile. This is not a trivial action.
Creating a plaintext file in vim does not qualify as a valid
password. Instead, a valid keyfile is created by doing the following:
echo -n "password" > keyfile.key
which explicitly creates the file with password on the first line with
an explicit newline at the end of the file.
This is because cryptsetup needs a newline at the end of the keyfile.
Just using a text editor like vim does not create a valid keyfile that
cryptsetup can equate with a key for an encrypted volume. This
addition is (at least) worth six hours of my time, so hence may be
worth about that much to anyone who may read this valuable addition.
This limitation on cryptsetup and crypttab is not mentioned in the
crypttab nor cryptsetup manuals at all.
UserName is VaheOughourlian.
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