I've been seeing this for some time -- probably since July, but I'm not
sure. (Just back from a month or so offline, so my memory is fading.)
Thanks to @tommy-trussell for narrowing it down to
/var/lib/apt/extended_states. I believe I've narrowed it further; on my
system, deleting a few specific entries from that file is enough to make
update-manager display the updates again. But *which* specific entries
is ... interesting.
Summary
=======
These are the entries that need to be removed:
linux-signed-image-4.13.0-43-generic
linux-image-extra-4.13.0-43-generic
linux-signed-image-4.13.0-45-generic
linux-image-extra-4.13.0-45-generic
linux-modules-extra-4.15.0-24-generic
But note that installing the pending kernel updates caused a non-obvious
addition to this list.
Details
=======
My system is:
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.5 LTS"
In case it matters:
- It's an EFI system
- Xenial was a clean install, not an upgrade over an earlier version
At the start of my investigation:
$ uname -a
Linux shekere 4.15.0-29-generic #31~16.04.1-Ubuntu SMP Wed Jul 18 08:54:04
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
The installed packages that appear to be relevant were:
linux-image-extra-4.13.0-43-generic
linux-image-extra-4.13.0-45-generic
linux-modules-extra-4.15.0-24-generic
linux-modules-extra-4.15.0-29-generic
linux-signed-image-4.13.0-43-generic
linux-signed-image-4.13.0-45-generic
(There were also corresponding versions of linux-image and linux-headers,
but those don't seem to matter re. this bug).
Deleting *all* of the following four entries from extended_states
made update-manager work properly:
Package: linux-signed-image-4.13.0-43-generic
Architecture: amd64
Auto-Installed: 1
Package: linux-image-extra-4.13.0-43-generic
Architecture: amd64
Auto-Installed: 1
Package: linux-signed-image-4.13.0-45-generic
Architecture: amd64
Auto-Installed: 1
Package: linux-image-extra-4.13.0-45-generic
Architecture: amd64
Auto-Installed: 1
I then installed the pending kernel-related updates:
Of the many updates waiting to be installed were these:
linux-headers-4.15.0-33
linux-headers-4.15.0-33-generic
linux-image-4.15.0-33-generic
linux-modules-4.15.0-33-generic
linux-modules-extra-4.15.0-33-generic
I:
1. reverted to the status-quo-ante version of extended_status (which of
course caused update-manager to misbehave again)
2. manually installed those five packages
3. tested
4. rebooted into the new kernel
5. tested again
As expected, the reboot made no difference; same results at steps (3) and
(5).
Here's how things stand now:
$ uname -a
Linux shekere 4.15.0-33-generic #36~16.04.1-Ubuntu SMP Wed Aug 15
17:21:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
extended_states did *not* acquire any new entries for the -4.15.0.33
packages. (Perhaps this is because I "apt install"ed them, instead of letting
dist-upgrade do it?)
To make update-manager work, I now have to remove those same four
extended_states entries, PLUS ONE MORE:
Package: linux-modules-extra-4.15.0-24-generic
Architecture: amd64
Auto-Installed: 1
I had intended to test again after installing the rest of the pending updates,
but alas, update-manager just gives me a no-pending-updates dialog box. I
doubt that this second round of updates will have made any difference; but if
that needs to be tested, it'll have to wait until another package update
becomes available....
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https://bugs.launchpad.net/bugs/1766217
Title:
software updater presents an empty panel for updating
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