[Bug 1825938] Re: Cannot update to 19.04 ubuntu-minimal could not be located

[Brian Murray]

Perhaps they are blocking by user agents.

bdmurray at clean-cosmic-amd64:/tmp/ubuntu-release-upgrader-rdj71yjw$ python3
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import utils
>>> utils.url_downloadable('http://mirrors.digitalocean.com/ubuntu/dists/disco/Release', print)
url_downloadable: http://mirrors.digitalocean.com/ubuntu/dists/disco/Release
s='http' n='mirrors.digitalocean.com' p='/ubuntu/dists/disco/Release' q='' f=''
send: b'HEAD /ubuntu/dists/disco/Release HTTP/1.1\r\nAccept-Encoding: identity\r\nHost: mirrors.digitalocean.com\r\nUser-Agent: Python-urllib/3.6\r\nConnection: close\r\n\r\n'
reply: 'HTTP/1.1 403 Forbidden\r\n'
header: Date: Tue, 23 Apr 2019 19:02:25 GMT
header: Content-Type: text/html; charset=UTF-8
header: Connection: close
header: Set-Cookie: __cfduid=d5e9b6d1be64106c99e8a26d9faf281c41556046145; expires=Wed, 22-Apr-20 19:02:25 GMT; path=/; domain=.digitalocean.com; HttpOnly
header: Cache-Control: max-age=10
header: Expires: Tue, 23 Apr 2019 19:02:35 GMT
header: X-Frame-Options: SAMEORIGIN
header: Vary: Accept-Encoding
header: Server: cloudflare
header: CF-RAY: 4cc21776da5d29fb-SEA
error from httplib: 'HTTP Error 403: Forbidden'
False

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https://bugs.launchpad.net/bugs/1825938

Title:
  Cannot update to 19.04 ubuntu-minimal could not be located

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

Bug description:
  This happens on two different machines running VPS on DigitalOcan,
  both trying to update, one from 18.04, the other from 18.10

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubuntu-release-upgrader-core 1:18.10.11.6
  ProcVersionSignature: Ubuntu 4.18.0-17.18-generic 4.18.20
  Uname: Linux 4.18.0-17-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue Apr 23 07:22:43 2019
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to cosmic on 2019-04-23 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2019-04-23 07:06:30.943188
   Log time: 2019-04-23 07:11:57.621194

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