[Bug 294139] Re: update-manager fail release upgrade if using apt-cacher

[Launchpad Bug Tracker]

[Expired for update-manager (Ubuntu) because there has been no activity
for 60 days.]

** Changed in: update-manager (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/294139

Title:
  update-manager fail release upgrade if using apt-cacher

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

Bug description:
  Binary package hint: update-manager-core

  Upgrading from hardy to intrepid, do-release-upgrade stops saying:

  $ do-release-upgrade 
  Checking for a new ubuntu release
  Failed Upgrade tool signature
  Done Upgrade tool
  Done downloading            
  extracting 'intrepid.tar.gz'
  authenticate 'intrepid.tar.gz' against 'intrepid.tar.gz.gpg' 
  exception from gpg: GnuPG exited non-zero, with code 131072
  Debug information: 

  gpg: WARNING: unsafe permissions on homedir `/tmp/tmpOaFaki'

  gpg: can't open `/tmp/tmpOaFaki/intrepid.tar.gz.gpg'
  gpg: verify signatures failed: file open error

  Authentication failed
  Authenticating the upgrade failed. There may be a problem with the network or with the server. 

  
  I get the same error (last 2 lines) if I use the gui command update-manager.

  I'm using apt-cacher through apt.conf, which has a line:

  Acquire::http::Proxy "http://paolo:3142/";

  On the contrary, all runs perfectly if I disable the apt-cacher
  invoking line of apt.conf

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