[Bug 1955317] Re: Default /etc/crypttab is using dev/sd*instead of uuid for swap partition

[Jan Büddefeld]

After some research I think, the best solution would be to create an
additional zfs file system in the pool and use that partition as the
swap partition.

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Title:
  Default /etc/crypttab is using dev/sd*instead of uuid for swap
  partition

Status in ubiquity package in Ubuntu:
  New

Bug description:
  I'm not quite sure if this is the right category so excuse me, if I'm
  wrong here.

  I've installed Ubuntu 21.10 using the latest installer. During the
  installation I've enabled zfs and encryption. The installer created a
  /etc/crypttab file that looks like this:

  cryptoswap      /dev/sda2       /dev/urandom    swap,initramfs

  This is really bad because the disk behind /dev/sda may change and
  unfortunately did change in my case. This can lead to data lost on
  other disks.

  I would suggest to use the UUID instead of "/dev/sda2".

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 5.13.0-22.22-generic 5.13.19
  Uname: Linux 5.13.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu70
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Dec 18 22:23:35 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  InstallationDate: Installed on 2021-12-18 (0 days ago)
  InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  Symptom: installation
  UpgradeStatus: No upgrade log present (probably fresh install)

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