Re: Is my LUKS header corrupted?

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2. would indicate a corrupt header, but 1. is really strange.
Unless Kubuntu has done something they really should not do,
namely adding their own passphrase checksum, I have no idea
how that behavior could happen.

Unless there is some large ssd-sector caused corruption,
the LUKS header should not get corrupted by powering things
down. It never gets written in normal operation and there is 
a safety-distance to the data area. 

Regards,
Arno

On Wed, Apr 24, 2019 at 12:42:08 CEST, Greg Laun wrote:
>    I have a LUKS-encrypted hard drive partition that is showing the
>    following behavior on Kubuntu 19.04:
>    1. If I enter the correct passphrase, Kubuntu drops into emergency
>    mode. If I enter the incorrect passphrase, Kubuntu asks for the
>    passphrase again.
>    2. If I run cryptsetup luksOpen <target device> myName with the correct
>    passphrase, it tells me "No key available with this passphrase."
>    Does anybody know what would account for this behavior? How is
>    Kubuntu's UI layer able to take a different code path based on the
>    correct passphrase if dm-crypt no longer recognizes the passphrase?
>    Is it possible there are arguments to luksOpen that I can pass to have
>    the passphrase recognized again?
>    The passphrase worked 4 days ago. The machine was powered down
>    accidentally by an unruly toddler, but I'm not sure if that's enough to
>    corrupt the LUKS header.
>    Thanks for any help/info!
>    Greg

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-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno@xxxxxxxxxxx
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----
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