Re: two luks questions

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Dirk Heinrichs wrote:
> Am Mittwoch, 26. April 2006 02:24 schrieb ext John Norvell:
>
>   
>> Also, the whole procedure worked fine (I did not make a key file),
>> except that I cannot add a second password to the partition. WHen I try
>> "cryptsetup luksAddKey /dev/sda8" I get an error message that says "No
>> key available with this passphrase." Is adding multiple passwords only
>> relevant when using a key file?
>>     
>
> This means you entered the wrong passphrase. Adding a new passphrase 
> requires knowledge of an existing one.
>
> HTH...
>
> 	Dirk
>   
Thanks for the response.

This is the critical ambiguity in all the cryptsetup documents (and the
error message): If I'm adding a NEW password, in what sense can it be an
existing one? Existing where?

Let's say, for instance, that I'm setting up an encrypted home directory
for user "john." I set it up initially with john's login password with
the eventual intention of using pam_mount with john's login password.
But, I want to add root's password as well, just in case. What do I do
for this password to "exist" somewhere so I can attach it to this partition?

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