[dm-crypt] Issue with crypttab

Arbiel (gmx) arbiel.perlacremaz at gmx.fr
Sat Jul 23 03:56:38 CEST 2016


I understand the issue may be related to my distribution, however let me
please present the case, and you will maybe help me resolve the difficulty.

I'm presently trying to go from Ubuntu 14.04 (cryptsetup 1.6.1) to
Ubuntu 16.04 (cryptsetup 1.6.6) and the problem comes with Ubuntu 16.04.

I want to decrypt 3 logical volumes, victor-root_1604, victor-home and
victor-root_alt as my /etc/crypttab file show

|grep -v -e "noauto" /etc/crypttab | grep -v -e "^#" victor-root_1604
UUID=22847149-1399-491b-b166-007a50938c5f
/dev/disk/by-uuid/4146dfad-26f0-4aec-99c3-8ab00c3e4297:/.victor-root_1604:1
luks,keyscript=/lib/cryptsetup/scripts/passdev victor-home
UUID=37447a61-f946-4d38-a398-5a886c4e3f22
/dev/disk/by-uuid/e4fa73a6-92bc-4d1e-98b0-7b6d92661ae4:/.victor-home:1
luks,keyscript=/lib/cryptsetup/scripts/passdev victor-root_alt
UUID=bcc1027f-6078-449f-a26c-99706b5b59b4
/dev/disk/by-uuid/4146dfad-26f0-4aec-99c3-8ab00c3e4297:/.victor-root_alt:1
luks,keyscript=/lib/cryptsetup/scripts/passdev|


It turns out that /etc/crypttab is indeed read and used by
/etc/init.d/cryptdisks during the start-up of the system.
I extracted from the system logs the errors related to this decrypting,
with the following results

|journalctl -x -p 0..3 | grep -e "dev-disk-by.* a échoué" -- Subject:
L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_1604:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_1604:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-4146dfad\x2d26f0\x2d4aec\x2d99c3\x2d8ab00c3e4297:-.victor\x2droot_alt:1.device
a échoué, avec le résultat timeout. -- Subject: L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué -- L'unité (unit)
dev-disk-by\x2duuid-e4fa73a6\x2d92bc\x2d4d1e\x2d98b0\x2d7b6d92661ae4:-.victor\x2dhome:1.device
a échoué, avec le résultat timeout.|

Sorry for the language, but translation goes that way :
- "a échoué" --> "failed"
- "avec le résultat" --> "with the result"

So, these lines say that the decrypting of victor-root_1604 failed once
and succeded on the second try, whereas the decrypting of the other two
logical volumes failed on the three tries. This situation does not arise
with Ubuntu 14.04.

Have someone an idea on what is going wrong ?

Thanks in advance for any help.


Le 21/07/2016 15:42, Michael Kjörling a écrit :
> On 21 Jul 2016 14:53 +0200, from jacques.berger at gmx.fr (Jacques Berger):
>> <html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Hi</div>
> Please resend your e-mail in a more readable format. I suggest plain
> text.
>


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