[Bug 1310891] Re: cached meta-release file should not be saved if it is html

[Brian Murray]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Fix Released => Triaged

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https://bugs.launchpad.net/bugs/1310891

Title:
  cached meta-release file should not be saved if it is html

Status in ubuntu-release-upgrader package in Ubuntu:
  Triaged
Status in ubuntu-release-upgrader source package in Trusty:
  Triaged

Bug description:
  It is possible for ubuntu-release-upgrader to save a captive web
  portal's html page as if it were meta-release information from
  changelogs.ubuntu.com, either in ~/.cache/update-manager-core/meta-
  release or /var/lib/update-manager/meta-release. In either case this
  behavior is wrong and that should not be saved.

  Perhaps a simple to check to see if the data is plain text or html
  would work.

  
  Original Report
  ---------------
  I'm unable to trigger upgrade from 13.04 to 13.10 , and there is no obvious error that i'm getting:

  I made sure that Prompt is set to normal in /etc/update-manager
  /release-upgrades  (also confirmed in the GUI)

  apt-get update runs successfully and then do-release-upgrade returns:

  No new release found

  I've tried to use the main-servers , I've tried running apt-get
  upgrade , apt-get dist-upgrade, nothing is changing this behavior.

  The GUI software update reports: "the software on this computer is up
  to date"

  Ubuntu basically fails silently to inform me that there are new
  releases, and does not show any issue.

  I'm within a fairly simple network, I'm not behind a caching server
  (unless there is a transparent one at the ISP or so)

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