[Bug 1477455] [NEW] Incorrect instructions leave automatic updates blocked

[Stuart Bishop]

Public bug reported:

What happens:

Default installations regularly fail package updates when /boot fills
up. While the ultimate cause of this bug lies elsewhere, update-manager
gives the user incorrect instructions when the failure occurs:

"Not enough free disk space The upgrade needs a total of 104 M free
space on disk '/boot'. Please free at least an additional 85.6 M of disk
space on '/boot'. Empty your trash and remove temporary packages of
former installations using 'sudo apt-get clean'."

These instructions do not work, and software updates from this point on
fail. The user is left vulnerable, unless they have knowledgeable
assistance or are technically capable enough to research and fix the
problem themselves.

What should happen:

update-manager should provide valid instructions for dealing with this
well known problem, or better yet perform the operation itself. It is
responsible for keeping  the users machine up to date, and needs to
handle this and similar failures.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: update-manager 1:15.04.7
ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
Uname: Linux 3.19.0-22-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jul 23 15:35:46 2015
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'706'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'701'
 b'com.ubuntu.update-manager' b'launch-time' b'1437636623'
InstallationDate: Installed on 2015-03-13 (131 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to vivid on 2015-03-16 (128 days ago)

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


** Tags: amd64 apport-bug third-party-packages vivid

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https://bugs.launchpad.net/bugs/1477455

Title:
  Incorrect instructions leave automatic updates blocked

Status in update-manager package in Ubuntu:
  New

Bug description:
  What happens:

  Default installations regularly fail package updates when /boot fills
  up. While the ultimate cause of this bug lies elsewhere, update-
  manager gives the user incorrect instructions when the failure occurs:

  "Not enough free disk space The upgrade needs a total of 104 M free
  space on disk '/boot'. Please free at least an additional 85.6 M of
  disk space on '/boot'. Empty your trash and remove temporary packages
  of former installations using 'sudo apt-get clean'."

  These instructions do not work, and software updates from this point
  on fail. The user is left vulnerable, unless they have knowledgeable
  assistance or are technically capable enough to research and fix the
  problem themselves.

  What should happen:

  update-manager should provide valid instructions for dealing with this
  well known problem, or better yet perform the operation itself. It is
  responsible for keeping  the users machine up to date, and needs to
  handle this and similar failures.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: update-manager 1:15.04.7
  ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
  Uname: Linux 3.19.0-22-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Jul 23 15:35:46 2015
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'706'
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'window-width' b'701'
   b'com.ubuntu.update-manager' b'launch-time' b'1437636623'
  InstallationDate: Installed on 2015-03-13 (131 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to vivid on 2015-03-16 (128 days ago)

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