update-manager "Install Now" does not

[Eero Aaltonen]

1. Launched update-manager, shows kernel updates available
2. Clicked "Install Now"
3. ??
4. Repeat 1. & 2.
5. Still nothing.
6. `sudo apt-get update`
7. Something about spotify missing spotify key. Comment out spotify from /etc/apt/sources.list
8. `sudo apt-get update`
9. `sudo apt-get upgrade` Prints out following

Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  linux-generic linux-headers-generic linux-image-generic
The following packages will be upgraded:
  apport apport-gtk gir1.2-gtk-3.0 libgail-3-0 libgtk-3-0 libgtk-3-bin
  libgtk-3-common libnautilus-extension1a libpython3.4 libpython3.4-minimal
  libpython3.4-stdlib linux-libc-dev nautilus nautilus-data oneconf
  oneconf-common python-oneconf python-urllib3 python3-apport python3-oneconf
  python3-problem-report python3-urllib3 python3.4 python3.4-minimal
24 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
Need to get 9 260 kB of archives.
After this operation, 31,7 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
Abort.

Which is completely different from what update-manager is offering: "Security updates" -> "Ubuntu Base" -> kernel stuff.

I am confuse.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: update-manager 1:0.196.14
ProcVersionSignature: Ubuntu 3.13.0-65.106-generic 3.13.11-ckt26
Uname: Linux 3.13.0-65-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.15
Aptdaemon:

Architecture: amd64
CurrentDesktop: Unity
Date: Tue Oct 20 10:48:51 2015
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'692'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'845'
 b'com.ubuntu.update-manager' b'launch-time' b'1445327023'
InstallationDate: Installed on 2014-09-24 (391 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

[Eero Aaltonen (ejn)]

A new day and a reboot later update-manager is now functioning normally. The listing shows all packages and "Update now" does proceed to update.