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From: Guilhem Moulin <guilhem@fripost.org>
To: Dominic Raferd <dominic@timedicer.co.uk>
Cc: dm-crypt@saout.de
Subject: Re: [dm-crypt] LUKS + dm-crypt Debian/Ubuntu expanding encrypted root LV onto 2nd disk
Date: Fri, 7 Jun 2019 12:52:09 +0200	[thread overview]
Message-ID: <20190607105209.GA5716@fripost.org> (raw)
In-Reply-To: <CAF9Mo3+KwchO_e0YF9zr+v9=Gq1J_73ya0anvDYWVRxxDNuh8A@mail.gmail.com>

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Hi,

On Fri, 07 Jun 2019 at 09:56:52 +0100, Dominic Raferd wrote:
> On Wed, 29 May 2019 at 14:44, Guilhem Moulin <guilhem@fripost.org> wrote:
>> I guess that if you want to stick to decrypt_derived your options are
>> to use `luksFormat --type luks1` (or `convert --type luks1`);
> 
> unfortunately this doesn't work. I try it (booting from SystemRescueCD):
> 
> # cryptsetup convert /dev/sda5 --type luks1
> […] 
> Cannot convert to LUKS1 format - keyslot 0 is not LUKS1 compatible.

For LUKS1, the only supported PBKDF algorithm is PBKDF2 (while for LUKS2
it defaults to argon2i), you therefore need to remove existing
non-PBKDF2 keyslots with `cryptsetup luksKillSlot`, or convert them with
`cryptsetup luksConvertKey --pbkdf pbkdf2`.

Cheers,
-- 
Guilhem.

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      reply	other threads:[~2019-06-07 10:52 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-22 11:41 [dm-crypt] LUKS + dm-crypt Debian/Ubuntu expanding encrypted root LV onto 2nd disk Dominic Raferd
2019-05-22 12:46 ` Arno Wagner
2019-05-22 12:53   ` Dominic Raferd
2019-05-22 13:15     ` Arno Wagner
2019-05-22 17:16     ` Guilhem Moulin
2019-05-29  9:56       ` Dominic Raferd
2019-05-29 11:06         ` Ondrej Kozina
2019-05-29 11:26           ` Dominic Raferd
2019-05-29 13:43             ` Guilhem Moulin
2019-06-07  8:56               ` Dominic Raferd
2019-06-07 10:52                 ` Guilhem Moulin [this message]

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