[Bug 785296] Re: Multiple instances of "Ubuntu XX.YY Upgrade Available" (check-new-release-gtk) dialog

[Daniel Richard G.]

RedSingularity, please note that this error (as far as I'm aware) only
occurs when the home directory is being served from AFS. This scenario
breaks common assumptions held by many programs (that the homedir is
always accessible/writable) and is thus more likely than not the
ultimate cause of this bug.

You may be able to simulate the effect of expired Kerberos/AFS
authentication by logging in, allowing the desktop to load and settle,
and then invoking "chmod 000 $HOME". (chown'ing the directory as root
may help, too, to prevent user programs from chmod'ing things back.)
This only represents a partial simulation, however, as under AFS only
some processes may be unable to access a given directory (depending on
the process group that they are in). If there are any update-manager
processes that do not run in the same process group as the rest of the
desktop, yet expect to access the homedir, this may be an issue.

The fix needed here, I suspect, is something that doesn't involve the
filesystem at all. For example, setting an X property on the root to
ensure that only one instance of the window exists.

** Changed in: update-manager (Ubuntu)
       Status: Invalid => New

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https://bugs.launchpad.net/bugs/785296

Title:
  Multiple instances of "Ubuntu XX.YY Upgrade Available" (check-new-
  release-gtk) dialog

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  Binary package hint: update-manager

  This concerns update-manager 1:0.142.23 in Ubuntu Maverick.

  An "Ubuntu 11.04 Upgrade Available" dialog window pops up. If I'm not
  around to click it away, then about a half hour later, another one
  pops up. Some time later, another window.

  I come back the next day, and see more than a dozen such windows
  littering my desktop.

  This may have to do with bug #784130, which appears to prevent the
  "Don't Upgrade" option from sticking.

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