[Bug 1743995] Re: Upgrade 17.04 to 17.10 not possible

[ZdravkoG]

@Jean-Baptiste Lallement. Point 2 in Your answer is actually false! At least in my sources.list there is NOT entry like 'http://archive.ubuntu.com/ubuntu stable Release' and NO any third party installer or packages are adding this.
If Your supposition is true, then during regular check for updates, equivalent error message will bring up (together with messages related to end of life release). Such message does not appear!
Do not be angry when someone goes wrong because of missed knowledge the interconnections between the packets, even when it has inadvertently raised the tone. I apologize on behalf of @Otto.
Please be more careful with the final conclusion!

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https://bugs.launchpad.net/bugs/1743995

Title:
  Upgrade 17.04 to 17.10 not possible

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

Bug description:
  Expected: Upgrade 17.04 to 17.10

  Result: 
  E:The repository 'http://archive.ubuntu.com/ubuntu stable Release' does not have a Release file.

  Also, Upgrade server has a circular reference
  see http://archive.ubuntu.com/ubuntu/ubuntu/ubuntu/ubuntu/ubuntu/ubuntu/...

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