[Bug 1533375] Re: error during attempt to upgrade tofrom 14.04.3 to 14.10

[Maddes]

If you use apt-cacher and want to run "do-release-upgrade" then make
sure that the apt-cacher option "ubuntu_release_names" contains the new
release code name you want to upgrade to.

I wanted to update Ubuntu via console from 15.04 "vivid" to 15.10 "wily"
and got the following errors on console:

Checking for a new Ubuntu release
Err Upgrade tool signature
  403 Sorry, not allowed to fetch that type of file: wily.tar.gz.gpg
Err Upgrade tool
  403 Sorry, not allowed to fetch that type of file: wily.tar.gz
Fetched 0 B in 0s (0 B/s)
WARNING:root:file 'wily.tar.gz.gpg' missing
Failed to fetch
Fetching the upgrade failed. There may be a network problem.

To fix this problem I created a new config file (/etc/apt-
cacher/conf.d/99ubuntu) from the default configuration (/etc/apt-cacher
/apt-cacher.conf), edited it to uncomment the line and added all missing
code names from http://releases.ubuntu.com/

grep '^#*ubuntu_release_names' /etc/apt-cacher/apt-cacher.conf >/etc/apt-cacher/conf.d/99ubuntu
nano /etc/apt-cacher/conf.d/99ubuntu

Then "do-release-upgrade" worked with apt-cacher.

Maybe this can be same in your case .

Kind regards
Maddes

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https://bugs.launchpad.net/bugs/1533375

Title:
  error during attempt to upgrade tofrom 14.04.3 to 14.10

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

Bug description:
  en error appeared when i did do-release-upgrade-d missing root file utopic.tar.gz.gpg
  i tried sudo apt-get update && sudo apt-get upgrade
  looks like update went well but still none file found
  do-release-upgrade without -d  went wrong so i sent a note to u.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-43.49~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-43-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Tue Jan 12 22:38:44 2016
  InstallationDate: Installed on 2015-10-25 (79 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-12 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2016-01-12T21:59:03.846843

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