You have some custom PPA's installed. Looks like the xorg-edgers.
You will need to remove these sources and their packages in order to continue
the upgrade. Consider the tool 'ppa-purge' to do this. Since this is not a
bug in update-manager I am closing the report. Please feel free to contin
Updated.
mrsol@mrsol-work-kubun:~$ apt-cache policy libcairo2
libcairo2:
Установлен: 1.11.3+git20120220.2d74eaf9-0ubuntu0ricotz~natty0
Кандидат: 1.11.3+git20120220.2d74eaf9-0ubuntu0ricotz~natty0
Таблица версий:
*** 1.11.3+git20120220.2d74eaf9-0ubuntu0ricotz~natty0 0
500 http://ppa.
mrsol@mrsol-work-kubun:~$ apt-cache policy libcairo2
libcairo2:
Установлен: 1.11.3+git20120215.c60627e8-0ubuntu0ricotz~natty0
Кандидат: 1.11.3+git20120220.2d74eaf9-0ubuntu0ricotz~natty0
Таблица версий:
1.11.3+git20120220.2d74eaf9-0ubuntu0ricotz~natty0 0
500 http://ppa.launchpad
What is the output of:
apt-cache policy libcairo2
---
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** Changed in: update-manager (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/932772
Title:
do-release-upgrade error with upgrade
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