[Bug 994152] Re: do-release-upgrade says it can not run the upgrade

[Richard Cheung]

Hi,

I have found a solution.

sudo apt-get install python-apt

Problem should be related to the do-release-upgrade script.

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https://bugs.launchpad.net/bugs/994152

Title:
  do-release-upgrade says it can not run the upgrade

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

Bug description:
  Whenever attempting to run do-release-upgrade I get an error:
  $ do-release-upgrade 
  Checking for a new ubuntu release
  Get:1 Upgrade tool signature [198 B]                                                     
  Get:2 Upgrade tool [1550 kB]                                                             
  Fetched 1550 kB in 0s (0 B/s)                                                            
  authenticate 'precise.tar.gz' against 'precise.tar.gz.gpg' 
  extracting 'precise.tar.gz'
  Can not run the upgrade
  This usually is caused by a system where /tmp is mounted noexec. Please remount without noexec and run the upgrade again.

  
  I have checked /tmp
  $ ls -l / |grep tmp
  drwxrwxrwt  15 root root  360 2012-05-03 13:00 tmp

  which is obviously not mounted noexec.

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