[Bug 390319] Re: Ubuntu does not automatically check for updates, even when set to

[Aaron Kelley]

My original issue was unrelated to proxy settings.  The machines in
question were not behind a proxy.  The problem here was related to
/etc/cron.daily/apt not being marked "executable" after an upgrade ---
as far as I know, no one has figured out why this happens, but it is
easy enough to resolve manually.

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Title:
  Ubuntu does not automatically check for updates, even when set to

Status in “update-notifier” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: update-notifier

  I have two machines with this problem.  This shouldn't be happening,
  so I am calling it a bug.

  One of them is running the desktop version of Ubuntu 9.04.  I have set
  it in the Software Sources admin applet to "Check for updates daily"
  and "Download all updates in the background."  It never offers updates
  to me.  But if I go to the terminal and "sudo aptitude update,"
  updates are offered via the GUI right away.  So, it seems that
  whatever process in the background is supposed to check for updates
  periodically is not working.

  Another machine running the server version of Ubuntu 9.04.  I have it
  set to check daily install security updates automatically.  It also
  never finds updates automatically --- if I connect via SSH it tells me
  0 updated packages are available, and security updates are never
  installed automatically.  I have to make sure to connect and install
  updates manually from time to time.

  Please let me know what I can do to help track this problem down.

  
  Disclaimers:

  Both of these machines were upgraded from Ubuntu 8.10.  Both of them
  properly checked for updates before the upgrade to 9.04, and have been
  displaying this problem since the very moment 9.04 was released.

  I am aware of the new update notification system in 9.04 (security
  updates daily, other updates weekly, no tray icon, etc.).  This is not
  the problem here.  I left town for two weeks and left both machines on
  to check, neither of them offered any updates automatically, but as
  soon as I returned and did a "sudo aptitude update" there were 60+
  updates available on the desktop machine, many of them security
  updates that should have been detected by the daily check.

  I'm not sure if the method used to upgrade from 8.10 would make any
  difference, but it is the only thing I can think of that is different
  between my machines.  What I mean is, these two machines that do not
  check for updates automatically were updated from 8.10 with the
  command-line method ("do-release-upgrade").  I have a third machine
  upgraded with the GUI method and it is handling automatic update
  checking beautifully.

  
  Thank you!

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