[Bug 1917220] Re: ports.ubuntu.com not selected for arm64 architecture

[Brian Murray]

Thanks for bringing this issue up and working on a patch for it. I've
actually modified the arch check to drop powerpc and sparc, and to add
every architecture which is on ports.ubuntu.com.

Out of curiosity how did you end up with the sources.list entries which
404'ed?

** Changed in: ubuntu-release-upgrader (Ubuntu)
     Assignee: (unassigned) => Brian Murray (brian-murray)

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => In Progress

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => Medium

** Tags added: rls-hh-incoming

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https://bugs.launchpad.net/bugs/1917220

Title:
  ports.ubuntu.com not selected for arm64 architecture

Status in ubuntu-release-upgrader package in Ubuntu:
  In Progress

Bug description:
  0) Machine

  Raspberry Pi 4 Model B Rev 1.1

  1) The release of Ubuntu you are using, via 'lsb_release -rd' or
  System -> About Ubuntu

  Description:    Ubuntu 19.10
  Release:        19.10

  2) The version of the package you are using, via 'apt-cache policy
  pkgname' or by checking in Software Center


  3) What you expected to happen

  Successful upgrade to Ubuntu 20.04.

  4) What happened instead

  Failed upgrade. 404 error for those URLs:

  http://security.ubuntu.com/ubuntu/dists/focal-security/main/binary-arm64/Packages
  http://us.archive.ubuntu.com/ubuntu/dists/focal/main/binary-arm64/
  http://us.archive.ubuntu.com/ubuntu/dists/focal/main/binary-arm64/Packages

  5) Resolution

  It appeared that the selected servers did not contain the arm64
  architecture. It should have used ports.ubuntu.com.

  Modifying the upgrader to select ports.ubuntu.com for the architecture
  arm64 solved the issue. (see patch attached)

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