Groups > linux.debian.user > #191855

Re: Got tired of waiting for suspend/resume (something like that)

From	Nicolas George <george@nsup.org>
Newsgroups	linux.debian.user
Subject	Re: Got tired of waiting for suspend/resume (something like that)
Date	2018-02-01 20:00 +0100
Message-ID	<vesfv-2o2-7@gated-at.bofh.it> (permalink)
References	(4 earlier) <venzc-7RC-11@gated-at.bofh.it> <veoEV-iA-7@gated-at.bofh.it> <vepAZ-TL-19@gated-at.bofh.it> <vepKF-YN-3@gated-at.bofh.it> <veqno-1dG-5@gated-at.bofh.it>
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Curt (2018-02-01):
> Unfortunately my crypttab (which I've never touched or looked at)
> reveals the following:
> 
> # <target name> <source device>         <key file>      <options>
> cryptswap1 /dev/sda5 /dev/urandom swap,cipher=aes-cbc-essiv:sha256
> 
> Which is dangerous because that dev/sda5 gets wiped out at every
> (re)boot.

The danger is quite exaggerated, but better eliminate it altogether if
convenient.

> curty@einstein:~/tips$  find -L /dev/disk -samefile /dev/sda5
> /dev/disk/by-partuuid/00065379-05
> /dev/disk/by-path/pci-0000:00:11.0-ata-1-part5
> /dev/disk/by-id/wwn-0x50014ee2b0b1534b-part5
> /dev/disk/by-id/ata-WDC_WD15EARS-22MVWB0_WD-WCAZA8328525-part5
> 
> I probably should change my crypttab (as a sane precaution) to:
> 
> swap /dev/disk/by-id//dev/disk/by-id/ata-WDC_WD15EARS-22MVWB0_WD-WCAZA8328525-part5
> /dev/urandom   swap,cipher=aes-cbc-essiv:sha256,size=256

That would probably work. "PARTUUID=00065379-05" would probably too.

> Still, I'm uncertain what goes into /etc/fstab.
> 
>    /dev/mapper/swap none swap sw 0 0
> 
> ?

Indeed, /dev/mapper/swap, since your swap device is named like that in
crypttab. Although I personally prefer a more explicit name.

Regards,

-- 
  Nicolas George

Thread

Re: Got tired of waiting for suspend/resume (something like that) Nicolas George <george@nsup.org> - 2018-02-01 13:50 +0100
  Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 14:20 +0100
    Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 14:20 +0100
      Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 14:50 +0100
        Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 15:00 +0100
      Re: Got tired of waiting for suspend/resume (something like that) David Wright <deblis@lionunicorn.co.uk> - 2018-02-01 15:00 +0100
        Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 16:10 +0100
          Re: Got tired of waiting for suspend/resume (something like that) David Wright <deblis@lionunicorn.co.uk> - 2018-02-01 17:10 +0100
            Re: Got tired of waiting for suspend/resume (something like that) Nicolas George <george@nsup.org> - 2018-02-01 17:20 +0100
              Re: Got tired of waiting for suspend/resume (something like that) Nicolas George <george@nsup.org> - 2018-02-01 17:50 +0100
                Re: Got tired of waiting for suspend/resume (something like that) David Wright <deblis@lionunicorn.co.uk> - 2018-02-01 18:50 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Nicolas George <george@nsup.org> - 2018-02-01 20:00 +0100
              Re: Got tired of waiting for suspend/resume (something like that) David Wright <deblis@lionunicorn.co.uk> - 2018-02-01 17:50 +0100
              Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 18:00 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 18:10 +0100
                Re: Got tired of waiting for suspend/resume (something like that) deloptes <deloptes@gmail.com> - 2018-02-01 19:10 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Nicolas George <george@nsup.org> - 2018-02-01 20:00 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-01 21:00 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Sven Hartge <sven@svenhartge.de> - 2018-02-01 22:10 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Curt <curty@free.fr> - 2018-02-02 10:40 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Sven Hartge <sven@svenhartge.de> - 2018-02-02 11:30 +0100
                Re: Got tired of waiting for suspend/resume (something like that) Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-02-03 11:00 +0100

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