Comment 19 for bug 2075968

Test #1:

ubuntu@xubuntu:~$ apt policy cloud-init
cloud-init:
  Installed: (none)
  Candidate: 24.1.3-0ubuntu1~22.04.5
  Version table:
     24.1.3-0ubuntu1~22.04.5 500
        500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
     23.1.2-0ubuntu0~22.04.1 500
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
     22.1-14-g2e17a0d6-0ubuntu1~22.04.5 500
        500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu jammy/main i386 Packages
ubuntu@xubuntu:~$ sudo sed -i 's/Prompt=lts/Prompt=normal/g' /etc/update-manager/release-upgrades
[sudo] password for ubuntu:
ubuntu@xubuntu:~$ do-release-upgrade --proposed
Checking for a new Ubuntu release

= Welcome to Ubuntu 24.04 LTS 'Noble Numbat' =

The Ubuntu team is proud to announce Ubuntu 24.04 LTS 'Noble Numbat'.

To see what's new in this release, visit:
  https://wiki.ubuntu.com/NobleNumbat/ReleaseNotes

[ ...SNIP... ]

ubuntu@xubuntu:~$ cat /etc/cloud/cloud-init.disabled
Disabled by ubuntu-release-upgrader. LP: #2075968.
ubuntu@xubuntu:~$ sudo reboot

...

ubuntu@xubuntu:~$ systemctl status cloud-init.target
○ cloud-init.target - Cloud-init target
     Loaded: loaded (/usr/lib/systemd/system/cloud-init.target; static)
     Active: inactive (dead)
ubuntu@xubuntu:~$ cat /run/cloud-init/ds-identify.log
[up 2.96s] ds-identify
disabled by marker file /etc/cloud-init.disabled
[up 2.97s] returning 2
[up 15.08s] ds-identify
disabled by marker file /etc/cloud-init.disabled
[up 15.09s] returning 2

Test #2:

nr@six:~$ lxc launch ubuntu:jammy j
nr@six:~$ lxc exec j bash
root@j:~# apt policy cloud-init
cloud-init:
  Installed: 24.1.3-0ubuntu1~22.04.5
  Candidate: 24.1.3-0ubuntu1~22.04.5
  Version table:
 *** 24.1.3-0ubuntu1~22.04.5 500
        500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     23.1.2-0ubuntu0~22.04.1 500
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     22.1-14-g2e17a0d6-0ubuntu1~22.04.5 500
        500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
root@j:~# sed -i 's/Prompt=lts/Prompt=normal/g' /etc/update-manager/release-upgrades
root@j:~# do-release-upgrade --proposed -f DistUpgradeViewNonInteractive
[ ...SNIP... ]
root@j:~# stat /etc/cloud/cloud-init.disabled
stat: cannot statx '/etc/cloud/cloud-init.disabled': No such file or directory