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From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] The future of disk encryption with LUKS2
Date: Fri, 5 Feb 2016 16:57:43 +0100	[thread overview]
Message-ID: <20160205155743.GA32705@tansi.org> (raw)
In-Reply-To: <n92dtd$hv9$1@ger.gmane.org>

On Fri, Feb 05, 2016 at 16:08:28 CET, Robert Nichols wrote:
> On 02/04/2016 11:23 AM, Arno Wagner wrote:
> >On the other hand, resizing a Luks container with a
> >filesystem in there without killing that filesystem is
> >already complicated enough that I usually just recomend
> >a backup and recreation instead of a resize.
> 
> Making an already difficult process more complex isn't going to
> win many friends.  Sounds like what you need is a "--resizefs"
> option like the one LVM's lvresize uses to invoke fsadm(8).

And thereby limit what filesystem can be in there? That is
a rather gross layering-violation and not a good idea.

Do not forget that backup and restore need to be tested
and the backup done regularly anyways if the data has any 
worth. I an not asking people to do anything new. (Well, 
except for those with only throwaway-data in their encrypted 
containers....)

Regards,
Arno
-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno@wagner.name
GnuPG: ID: CB5D9718  FP: 12D6 C03B 1B30 33BB 13CF  B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -- Plato

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier

  reply	other threads:[~2016-02-05 15:57 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-03 13:13 [dm-crypt] The future of disk encryption with LUKS2 .. ink ..
2016-02-03 14:02 ` Yves-Alexis Perez
2016-02-03 14:17 ` Milan Broz
2016-02-03 17:07   ` Arno Wagner
2016-02-03 19:46   ` Sven Eschenberg
2016-02-04  8:38     ` Milan Broz
2016-02-04  9:20       ` Michael Kjörling
2016-02-04 10:02         ` Milan Broz
2016-02-04 11:01           ` Arno Wagner
2016-02-04 16:34         ` Sven Eschenberg
2016-02-04 17:23           ` Arno Wagner
2016-02-04 18:42             ` Michael Kjörling
2016-02-04 20:51               ` Sven Eschenberg
2016-02-05 10:56               ` Arno Wagner
2016-02-05 15:08             ` Robert Nichols
2016-02-05 15:57               ` Arno Wagner [this message]
2016-02-05 23:51                 ` Sven Eschenberg
2016-02-06  2:58                   ` Arno Wagner
2016-02-06  3:18                     ` Sven Eschenberg
2016-02-06 10:01                       ` Michael Kjörling
2016-02-06 14:29                         ` Arno Wagner
2016-02-06 18:56                         ` Sven Eschenberg
2016-02-06 19:09                           ` Michael Kjörling
2016-02-06 19:18                             ` Sven Eschenberg
2016-02-07  0:09                               ` Lars Winterfeld
2016-02-07 23:05                               ` Arno Wagner
2016-02-08  0:25                                 ` Sven Eschenberg
2016-02-08 11:34                                   ` Michael Kjörling
2016-02-08 16:57                                     ` Arno Wagner
2016-02-08 20:19                                       ` f-dm-c
2016-02-08 16:41                                   ` Arno Wagner
2016-02-08 17:26                                     ` Sven Eschenberg
2016-02-08 18:49                                       ` Arno Wagner
2016-02-08 19:08                                         ` Sven Eschenberg
2016-02-08 20:31                                     ` f-dm-c
2016-02-08 20:51                                       ` Sven Eschenberg
2016-02-08 21:10                                         ` Arno Wagner
2016-02-08 21:43                                         ` f-dm-c
2016-02-08 22:04                                           ` Sven Eschenberg
2016-02-08 21:08                                       ` Arno Wagner
2016-02-08 21:45                                         ` f-dm-c
2016-02-06 14:20                       ` Arno Wagner
2016-02-06 19:13                         ` Sven Eschenberg
2016-02-07  7:09                       ` f-dm-c
2016-02-07 23:17                         ` Arno Wagner
2016-02-08  0:40                           ` Sven Eschenberg
2016-02-08  2:06                           ` f-dm-c
2016-02-08  2:46                             ` Sven Eschenberg
2016-02-08  3:43                               ` f-dm-c
2016-02-08  4:32                                 ` Sven Eschenberg
2016-02-08  6:09                                   ` f-dm-c
2016-02-08 16:51                                     ` Arno Wagner
2016-02-08 20:05                                       ` f-dm-c
2016-02-08 20:11                                       ` f-dm-c
2016-02-08 20:35                                         ` Sven Eschenberg
2016-02-08 17:27                                     ` Sven Eschenberg
2016-02-08 16:48                                   ` Arno Wagner
2016-02-08 19:49                                     ` f-dm-c
2016-02-08 19:57                                       ` Arno Wagner
2016-02-08 20:05                                       ` Sven Eschenberg
2016-02-04  9:35       ` Sumaya1960
2016-02-04 10:48         ` Arno Wagner
     [not found]           ` <56B4AC42.7070408@gmx.de>
2016-03-01 12:50             ` [dm-crypt] LUKS NVMe M.2 SSD - save disklayout Sumaya1960
2016-03-01 18:18               ` Sven Eschenberg
2016-03-04 22:05                 ` doark
2016-03-10 12:13                   ` Matthias Schniedermeyer
2016-03-14 18:23                   ` Sven Eschenberg
2016-02-04 16:29   ` [dm-crypt] The future of disk encryption with LUKS2 Yves-Alexis Perez
2016-02-04 17:17     ` Arno Wagner
2016-02-05  6:30       ` Yves-Alexis Perez
2016-02-05 11:02         ` Arno Wagner
2016-02-05 13:13           ` Yves-Alexis Perez
2016-02-05 13:31             ` Arno Wagner
2016-02-05 15:01               ` Yves-Alexis Perez
2016-02-05 15:24                 ` Arno Wagner
2016-02-05 15:44                   ` Milan Broz
2016-02-05 19:45                     ` Arno Wagner
2016-02-05 22:43                       ` Arno Wagner
2016-02-05 16:50                   ` Yves-Alexis Perez
2016-02-05 19:53                     ` Arno Wagner
2016-02-05 21:09                       ` Arno Wagner
     [not found]             ` <20160205133123.GA31320@das-labor.org>
2016-02-05 13:49               ` Zaolin
2016-02-05 15:15                 ` Arno Wagner
2016-02-08 21:51   ` Milan Broz
2016-02-08 22:36     ` Sven Eschenberg
2016-02-09  0:27       ` Milan Broz
2016-02-09  1:02     ` Arno Wagner
2016-02-09 22:08     ` Lars Winterfeld
2016-02-09 23:35       ` Arno Wagner
2016-02-10  0:20         ` Sven Eschenberg
2016-02-10  8:37         ` Milan Broz
2016-02-10 11:47           ` Arno Wagner
2016-02-10 13:48           ` Sven Eschenberg
2016-02-10 14:35             ` Robert Nichols
2016-02-10 15:09               ` Sven Eschenberg
2016-02-10 15:39                 ` Milan Broz
2016-02-10 16:22                   ` Arno Wagner
2016-02-10 17:13                     ` Sven Eschenberg
2016-02-10 16:48                   ` Sven Eschenberg
2016-02-11  5:09                 ` Robert Nichols
2016-02-11  6:44                   ` Milan Broz
2016-02-14  8:20             ` Milan Broz
2016-02-14 21:32               ` Sven Eschenberg
2016-03-12 21:20 David Niklas
2016-03-16  6:36 ` Ondrej Kozina
2016-03-25 21:09   ` David Niklas

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