[Bug 1842159] Re: Please suggest running apt update & apt upgrade in MOTD when list of available packages is old
Balint Reczey
balint.reczey at canonical.com
Mon Dec 16 14:14:12 UTC 2019
root at ee-motd-verify:~# update-motd
Welcome to Ubuntu 19.10 (GNU/Linux 5.0.0-37-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 16 14:12:40 UTC 2019
System load: 0.95 Processes: 28
Usage of /home: unknown Users logged in: 0
Memory usage: 0% IP address for eth0: 10.84.73.58
Swap usage: 38%
28 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable
root at ee-motd-verify:~# touch -t 01010101 /var/lib/update-notifier/updates-available
root at ee-motd-verify:~# update-motd
Welcome to Ubuntu 19.10 (GNU/Linux 5.0.0-37-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 16 14:13:01 UTC 2019
System load: 0.9 Processes: 28
Usage of /home: unknown Users logged in: 0
Memory usage: 0% IP address for eth0: 10.84.73.58
Swap usage: 38%
28 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable
The list of available updates is more than a week old.
To check for new updates run: sudo apt update
root at ee-motd-verify:~# rm /var/lib/update-notifier/updates-available
root at ee-motd-verify:~# update-motd
Welcome to Ubuntu 19.10 (GNU/Linux 5.0.0-37-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 16 14:13:15 UTC 2019
System load: 1.0 Processes: 28
Usage of /home: unknown Users logged in: 0
Memory usage: 0% IP address for eth0: 10.84.73.58
Swap usage: 38%
The list of available updates is more than a week old.
To check for new updates run: sudo apt update
root at ee-motd-verify:~# apt update -qq
28 packages can be upgraded. Run 'apt list --upgradable' to see them.
root at ee-motd-verify:~# update-motd
Welcome to Ubuntu 19.10 (GNU/Linux 5.0.0-37-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Dec 16 14:13:28 UTC 2019
System load: 0.78 Processes: 28
Usage of /home: unknown Users logged in: 0
Memory usage: 0% IP address for eth0: 10.84.73.58
Swap usage: 38%
28 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable
root at ee-motd-verify:~# dpkg -l update-notifier-common | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-======================-============-============-=======================================================
ii update-notifier-common 3.192.26.1 all Files shared between update-notifier and other packages
** Tags removed: verification-needed verification-needed-eoan
** Tags added: verification-done verification-done-eoan
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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
Status in update-notifier package in Ubuntu:
Fix Released
Status in update-notifier source package in Xenial:
New
Status in update-notifier source package in Bionic:
New
Status in update-notifier source package in Disco:
New
Status in update-notifier source package in Eoan:
Fix Committed
Bug description:
[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
keep your system up to date.
...
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