[Bug 1991829] Re: machinectl read-only does not work

[Nick Rosbrook]

I have verified the fix using systemd-container 249.11-0ubuntu3.10 from
jammy-proposed:

nr at clean-jammy-amd64:~$ apt-cache policy systemd-container
systemd-container:
  Installed: 249.11-0ubuntu3.10
  Candidate: 249.11-0ubuntu3.10
  Version table:
 *** 249.11-0ubuntu3.10 500
        500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     249.11-0ubuntu3.9 500
        500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
     249.11-0ubuntu3.7 500
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     249.11-0ubuntu3 500
        500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
nr at clean-jammy-amd64:~$ machinectl image-status test
test
            Type: directory
            Path: /var/lib/machines/test
        Hostname: ubuntu
              OS: Ubuntu 22.04.3 LTS
              RO: writable
         Created: Mon 2023-08-28 15:44:25 EDT; 6min ago
nr at clean-jammy-amd64:~$ machinectl read-only test
nr at clean-jammy-amd64:~$ machinectl image-status test
test
            Type: directory
            Path: /var/lib/machines/test
        Hostname: ubuntu
              OS: Ubuntu 22.04.3 LTS
              RO: read-only
         Created: Mon 2023-08-28 15:44:25 EDT; 6min ago
nr at clean-jammy-amd64:~$ machinectl read-only test false
nr at clean-jammy-amd64:~$ machinectl image-status test
test
            Type: directory
            Path: /var/lib/machines/test
        Hostname: ubuntu
              OS: Ubuntu 22.04.3 LTS
              RO: writable
         Created: Mon 2023-08-28 15:44:25 EDT; 8min ago


** Tags removed: verification-needed verification-needed-jammy
** Tags added: verification-done verification-done-jammy

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https://bugs.launchpad.net/bugs/1991829

Title:
  machinectl read-only does not work

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Won't Fix
Status in systemd source package in Jammy:
  Fix Committed
Status in systemd source package in Kinetic:
  Fix Released

Bug description:
  [impact]

  machinectl read-only does not work

  [test case]

  On a system where the systemd machines dir is *not* on a btrfs volume
  (e.g. it's on a normal ext4 fs), create an image 'test' and then:

  $ sudo machinectl image-status test
  test
              Type: directory
              Path: /var/lib/machines/test
          Hostname: ubuntu
                OS: Ubuntu 20.04.5 LTS
                RO: writable
           Created: Wed 2022-10-05 13:41:15 EDT; 34s ago

  $ sudo machinectl read-only test
  Could not mark image read-only: Access denied

  [regression potential]

  failure marking images ro or rw

  [scope]

  this is needed in all releases that include machinectl

  this is fixed upstream by 137d162c42ed858613afc3d7493d08d4ae6d5c1b

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