[Bug 1873545] [NEW] Permission denied error from show-motd when updates available

[Hayden Barnes]

Public bug reported:

motd on demo of 20.04:

Welcome to Ubuntu 20.04 LTS (GNU/Linux 4.19.84-microsoft-standard
x86_64)

....

26 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable

/usr/lib/ubuntu-release-upgrader/release-upgrade-motd: 31: cannot create
/var/lib/ubuntu-release-upgrader/release-upgrade-available: Permission
denied

** Affects: ubuntuwsl
     Importance: Undecided
         Status: New

** Affects: update-motd (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Screenshot"
   https://bugs.launchpad.net/bugs/1873545/+attachment/5356334/+files/Annotation%202020-04-18%20033531.png

** Also affects: update-motd (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1873545

Title:
  Permission denied error from show-motd when updates available

Status in Ubuntu WSL:
  New
Status in update-motd package in Ubuntu:
  New

Bug description:
  motd on demo of 20.04:

  Welcome to Ubuntu 20.04 LTS (GNU/Linux 4.19.84-microsoft-standard
  x86_64)

  ....

  26 updates can be installed immediately.
  0 of these updates are security updates.
  To see these additional updates run: apt list --upgradable

  /usr/lib/ubuntu-release-upgrader/release-upgrade-motd: 31: cannot
  create /var/lib/ubuntu-release-upgrader/release-upgrade-available:
  Permission denied

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