** Description changed:
+ [Impact]
+
+ * Users don't have up to date information about available updates when
network connectivity or other issues prevented automated apt updates.
+ * It is desired to give the user accurate and up to date information about
available updates or warn them if the information is outdated.
+ * The fix notifies user about stale updates information in MOTD
+
+ [Test Case]
+
+ * Install update-motd and the the fixed package.
+ * Observe the output of sudo update-motd printing the usual output
+ * "Date back" the updates information:
+ $ sudo touch -t 01010101 /var/lib/update-notifier/updates-available
+ * Observe the output of sudo update-motd printing warning about outdated
update information.
+ * Remove the updates information:
+ $ sudo rm /var/lib/update-notifier/updates-available
+ * Observe the output of sudo update-motd printing warning about outdated
update information.
+
+ [Regression Potential]
+
+ * An error may be printed in MOTD or the warning message may appear
+ needlessly in case of making a mistake in implementing the fix.
+
+ [Original Bug Text]
+
When logging into a system where the package list is not updated for
long time (for example because is offline) I may see:
...
0 updates can be installed immediately.
0 of these updates are security updates.
..
Which is true, but the user may think that there are no available
updates released.
Also, if the /var/lib/update-notifier/updates-available is missing
(which can happen due to network connectivity issues of due to bugs)
there is no mention of updates in MOTD.
If the /var/lib/update-notifier/updates-available is older than a few
days (weeks?) or it is missing and the packages list is older than a few
days (weeks?) please recommend running apt update & upgrade in the MOTD
snippet:
...
The list of available updates is not refreshed in N days.
- Please run "sudo apt update" and then "sudo apt upgrade" to
+ Please run "sudo apt update" and then "sudo apt upgrade" to
keep your system up to date.
...
** Also affects: update-notifier (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: update-notifier (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: update-notifier (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: update-notifier (Ubuntu Disco)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1842159
Title:
Please suggest running apt update & apt upgrade in MOTD when list of
available packages is old
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1842159/+subscriptions
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