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From: Fourhundred Thecat <400thecat@gmx.ch>
To: dm-crypt@saout.de
Subject: [dm-crypt] Attaching loopback device failed
Date: Sun, 26 Jul 2020 20:23:10 +0200	[thread overview]
Message-ID: <e1373b3e-99ae-7c28-aef3-8240169db40f@gmx.ch> (raw)

Hello,

I have both luks headerand key in files

# ls
LUKS-HEADER  key

the directory is read-only (chattr -R +i .)

When I try to luksOpen my paretition, I get following error:

  # cryptsetup --allow-discards luksOpen /dev/sda2 sda2 --header
LUKS-HEADER --key-file key
  Attaching loopback device failed (loop device with autoclear flag is
required).
  Device LUKS-HEADER doesn't exist or access denied.

when I change the current directory to read-write (chattr -R -i .) then
it works.

But why does cryptsetup need luks header and key to be writable ?

thanks,

             reply	other threads:[~2020-07-26 18:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-26 18:23 Fourhundred Thecat [this message]
2020-07-26 18:41 ` [dm-crypt] Attaching loopback device failed Milan Broz

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