[Bug 1931474] Re: Backslash characters in password for encrypted ZFS installs are ignored

[paulw2u]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. We are sorry that we do not always have the capacity to
review all reported bugs in a timely manner.

Ubuntu 21.04 (hirsute) reached end-of-life on January 20, 2022.

The Ubiquity installer is now unmaintained as it has been replaced by
either the 'Ubuntu Desktop Installer' or 'Calamares' starting with the
Ubuntu 24.04 LTS release. So this bug report is being closed as
'Invalid' as the reported issue will not be fixed or investigated.

New bug reports relating to Ubuntu's installer should be reported
against the 'ubuntu-desktop-provision' project or the 'calamares'
package.

** Tags added: hirsute

** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1931474

Title:
  Backslash characters in password for encrypted ZFS installs are
  ignored

Status in ubiquity package in Ubuntu:
  Invalid

Bug description:
  Sometime around when ZFS was introduced to the installer, when trying
  to use that option along with an encrypted install, everything would
  work until first boot. After that it would claim that the password was
  incorrect, and I was unable to find a reason why.

  Doing a reinstall with the new 21.04 I tried the ZFS encrypted install
  again to see if it would work. I got the same error and happened to
  trace it down to the backslash character in my password.  I tried to
  escape the backslash with another but that did not work. Finally, when
  typing the password on boot without the backslash it would work.

  I have not had the same problem when choosing to install with LVM
  instead.

  The same issue arises when trying to unlock the drive using cryptsetup
  on the emergency console. I have attached the output when trying to
  use the password I want and the password that works with the --debug
  option.

  I am using a Dell XPS 13 9100.

  1) 
  Description:	Ubuntu 21.04
  Release:	21.04

  2) 
  ubiquity:
    Installed: 21.04.19
    Candidate: 21.04.19
    Version table:
   *** 21.04.19 500
          500 http://archive.ubuntu.com/ubuntu hirsute/main
          100 /var/lib/dpkg/status

  3) Be able to set a password with a backslash and have the backslash
  be in the password when using it to open the drive.

  4) The backslash is dropped from the password and the password will
  not work with it when trying to open the drive.

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