From: Chris Marusich <cmmarusich@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel@gnu.org
Subject: Re: Encrypted root partition
Date: Wed, 18 Jan 2017 03:38:57 -0800 [thread overview]
Message-ID: <87eg00k372.fsf@gmail.com> (raw)
In-Reply-To: <87pojkitaf.fsf@gmail.com> (Chris Marusich's message of "Wed, 18 Jan 2017 01:58:16 -0800")
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Chris Marusich <cmmarusich@gmail.com> writes:
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Chris Marusich <cmmarusich@gmail.com> skribis:
>>
>>> Is anyone actively working on documenting the new encrypted root stuff?
>>> If not, I'm happy to try my hand at it. I'm interested in trying to set
>>> it up on my laptop, anyway.
>>
>> I’ve added documentation in 2b5fea5ba3b07999cf198e1132ffcacbfcb7ed72.
>>
>> Please send a patch if you think of improvements that can be made.
>
> I'm happy to report that I was successful in setting up an encrypted
> root file system on my Libreboot laptop. I have to enter the passphrase
> twice, but that's no different from the normal case (without Libreboot).
> It took me multiple days to get it working, though, because each time I
> tried to run "guix system init", it took over 8 hours to finish!
>
> This is really good! Thank you for adding this feature.
As a bonus, I realized that one could use this feature to encrypt swap,
also. You can encrypt your swap area by using a swap file in the root
file system. Specifically, if you do something like this...
# Make the file readable/writable only by root.
sudo dd if=/dev/zero of=/swapfile bs=1MiB count=10240
sudo chmod 600 /swapfile
sudo mkswap --label swap /swapfile
and then you add a single line to your operating system configuration
file like this...
(swap-devices '("/swapfile"))
then your swap file will be automatically mounted during boot. You
don't even have to enter your LUKS passphrase an additional time. I was
pleasantly surprised to find out that encrypted swap was this easy!
--
Chris
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next prev parent reply other threads:[~2017-01-18 11:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-23 22:31 Encrypted root partition Ludovic Courtès
2016-11-24 6:45 ` Chris Marusich
2016-11-24 22:37 ` Ludovic Courtès
2016-11-25 16:06 ` ng0
2017-01-18 9:58 ` Chris Marusich
2017-01-18 11:38 ` Chris Marusich [this message]
2017-01-18 20:53 ` Efraim Flashner
2017-01-18 21:16 ` Ludovic Courtès
2017-01-19 4:08 ` Mike Gerwitz
2017-01-19 4:21 ` Chris Marusich
2017-01-19 22:31 ` dian_cecht
2017-01-18 21:17 ` Ludovic Courtès
2017-01-19 4:30 ` Chris Marusich
2017-01-19 12:07 ` Ludovic Courtès
2017-01-20 5:37 ` Chris Marusich
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