[Bug 1306936] Re: do-release-upgrade doesnt backup or commit existing sources.list

[Mathew Hodson]

*** This bug is a duplicate of bug 1243795 ***
    https://bugs.launchpad.net/bugs/1243795

** This bug is no longer a duplicate of bug 1309447
   Unicode decode error during upgrade to 14.04 if sources.list contains non-ascii characters and locale is non-US
** This bug has been marked a duplicate of bug 1243795
   do-release-upgrade crashed with UnicodeDecodeError in runPostInstallScripts(): 'ascii' codec can't decode byte 0xe2 in position 15: ordinal not in range(128)

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https://bugs.launchpad.net/bugs/1306936

Title:
  do-release-upgrade doesnt backup or commit existing sources.list

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

Bug description:
  Hello,

  i updated from a completely and fresh updated saucy to trusty latest beta yesterday evening, 
  by doing  "sudo do-release-upgrade -d"  inside tty2

  everything worked well so far except the fact, that the old
  sources.list wasent kept back or backuped.

  in past release upgrade processes the sources.list was checked and then commited with not used repositories, 
  but this isnt done this time for me.

  as i checked some logs i found this
   
  http://pastie.org/9074749

  anything else i can check so far?

  i think this shouldnt happen.

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