[Bug 885358] Re: decrypt_gnupg prompt does not accept any keyboard input

[Nathan Fish]

I am attempting to set up a similar solution, and have run into the same problem.
I tried removing "quiet splash" from the kernel command line, in case it was blocking the tty.  That didn't work, so I disabled plymouth, (moved /bin/plymouth to plymouth.old, since apt-get wasn't working)  which didn't help either.

I am using Linux Mint 16, but I don't think that makes a difference,
especially since this bug has been open since 2011 for some reason?

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https://bugs.launchpad.net/bugs/885358

Title:
  decrypt_gnupg prompt does not accept any keyboard input

Status in “cryptsetup” package in Ubuntu:
  Confirmed

Bug description:
  I have the boot partition and grub on a USB stick. Unlocking the HDD
  partition by passphrase works fine, but if I switch to GPG unlocking
  with a symmetric key, the GPG passphrase prompt does not accept any
  input. I can switch to the splash screen and back and to other
  consoles. On switching, the dialog ("Enter your GPG passphrase") gets
  reprinted, but still does not accept any input.

  /etc/crypttab:
  sda2_crypt UUID=... /etc/keys/cryptkey.gpg luks,keyscript=decrypt_gnupg

  /etc/fstab:
  /dev/mapper/vol01-root / ext4 noatime,nodiratime,discard,data=ordered,errors=remount-ro 0 1
  /dev/disk/by-label/bootstick /boot ext4 defaults 0 2
  /dev/mapper/vol01-home /home ext4 noatime,nodiratime,discard,data=ordered 0 2

  Ubuntu 11.10, Kernel 3.1.0-030100-generic, cryptsetup 2:1.1.3-4ubuntu2

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