Comment 0 for bug 1841672

Steps to reproduce:
1. Install Ubuntu 19.10 MATE with Encryption and LVM
2. Ensure that it boots after install
3. Run `sudo apt autoremove`

Expected results:
* there are no packages to remove

Actual results:
* it tries to remove cryptsetup:

$ sudo apt autoremove
[sudo] password for mate:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  cryptsetup cryptsetup-bin cryptsetup-initramfs cryptsetup-run
0 upgraded, 0 newly installed, 4 to remove and 23 not upgraded.
After this operation, 1 178 kB disk space will be freed.
Do you want to continue? [Y/n]

and this will lead on un-bootable encrypted system.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: cryptsetup 2:2.2.0-2ubuntu1
ProcVersionSignature: Ubuntu 5.2.0-10.11-generic 5.2.4
Uname: Linux 5.2.0-10-generic x86_64
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
CurrentDesktop: MATE
Date: Tue Aug 27 23:55:09 2019
InstallationDate: Installed on 2019-08-27 (0 days ago)
InstallationMedia: Ubuntu-MATE 19.10 "Eoan Ermine" - Alpha amd64 (20190827)
SourcePackage: cryptsetup
UpgradeStatus: No upgrade log present (probably fresh install)
cmdline: BOOT_IMAGE=/vmlinuz-5.2.0-10-generic root=/dev/mapper/vgubuntu--mate-root ro quiet splash
crypttab: sda5_crypt UUID=784fac4b-d7a4-4e62-b57e-7ce01e8b0160 none luks,discard