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




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

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