Public bug reported:
Installing mdadm and thus, finalrd, causes the below errors to be
displayed on shutdown or reboot.
The errors go away by removing the finalrd package or disabling
finalrd.service.
shutdown[1]: Failed to parse /proc/self/mountinfo: Operation not supported
shutdown[1]: Unable to unmount file systems: Operation not supported
shutdown[1]: Cannot enumerate swap partitions, no libmount support.
$ lsb_release -rd
Description: Ubuntu 26.04 LTS
Release: 26.04
$ apt-cache policy finalrd
finalrd:
Installed: 9build2
Candidate: 9build2
Version table:
*** 9build2 500
500 http://us.archive.ubuntu.com/ubuntu resolute/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: finalrd 9build2
ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0
Uname: Linux 7.0.0-22-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 4 12:23:06 2026
InstallationDate: Installed on 2026-06-04 (0 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: finalrd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: finalrd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2155465
Title:
finalrd causes errors to be displayed during shutdown or reboot
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