Re: [gentoo-user] Kernel upgrade and now LUKS failure.

[Florian Philipp <lists@f_philipp.fastmail.net>]

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Am 03.05.2010 18:56, schrieb Jason Dusek:
>   I have an encrypted block device, `/dev/sda2', which is
>   mounted as my root filesystem. I recently installed this
>   system -- I've been away from Gentoo for awhile -- and used
>   gentoo sources 2.6.31-r6. When the kernel upgrade rolled
>   around, to 2.6.32-r7, I installed and rebooted and then my
>   passphrase didn't work anymore. The error message:
> 
>     Command failed: No key available with this passphrase.
> 
>   However, rebooting with my old kernel works fine so I'm not
>   sure what the problem is. Could it be a different version of
>   `cryptsetup'? When the device can't be opened on boot, I have
>   the option to drop to a shell. I try to run `cryptsetup' and I
>   get the same error -- so maybe that's my problem? Would
>   different versions of `cryptsetup' be incompatible with
>   devices encrypted by older versions? That seems brittle and
>   dangerous to me.
> 
> --
> Jason Dusek
> 

Some rough guesses to get you started:

1. Keyboard layout specific passphrase? Do you use a non-american
keyboard layout? Maybe it has not been loaded at the time you enter the
passphrase.

2. Check that all necessary components (hash algorithm, block cipher,
encryption algorithm) are compiled into the new kernel.

Hope this helps,
Florian Philipp


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