[Bug 226217] Re: Dapper-to-Hardy upgrade fails on PowerPC (prerequisite dapper-backports missing)

[Tim]

Cleaning out old reports.  
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** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/226217

Title:
  Dapper-to-Hardy upgrade fails on PowerPC (prerequisite dapper-
  backports missing)

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

Bug description:
  Binary package hint: update-manager

  Upgrading a Mac G3 from Ubuntu 6.06.2 to 8.04 fails at the beginning
  (prerequisites).

  Command:
   gksu "update-manager -d"

  Error (from /var/log/dist-upgrade/main.log):
   'Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/dapper-backports/main/debian-installer/binary-powerpc/Packages.gz 404 Not Found'

  This URL is generated by the application and inserted into
  "/etc/apt/sources.list.d/prerequists-sources.dapper-ports.list", which
  is then used by the upgrader.

  I've checked manually, and the URL in fact does not exist!

  I have found another URL that may be the correct one, but I'm not sure:
   http://archive.ubuntu.com/ubuntu/dists/dapper-backports/main/debian-installer/binary-powerpc/Packages.gz

  Anyway, what is the workaround for this?

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