[Bug 1510356] [NEW] Cannot upgrade to Ubuntu 15.10 (Installer Exits)

[Radu Manolescu]

Public bug reported:

Currently running Ubuntu 15.04. I run the Software Updater and it says
"system up to date, but there is an update to 15.10". I click Upgrade,
and nothing happens. I have looked in the various logs suggested by
other posts (syslog, dpkg.log, /varlog/apt/*.log, etc - but I cannot
find any error messages. How can I troubleshoot this?

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: upgrade-software-version

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https://bugs.launchpad.net/bugs/1510356

Title:
  Cannot upgrade to Ubuntu 15.10 (Installer Exits)

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Currently running Ubuntu 15.04. I run the Software Updater and it says
  "system up to date, but there is an update to 15.10". I click Upgrade,
  and nothing happens. I have looked in the various logs suggested by
  other posts (syslog, dpkg.log, /varlog/apt/*.log, etc - but I cannot
  find any error messages. How can I troubleshoot this?

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